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Plumbing Contractor Insurance in Ontario, Canada

Construction & Trade Insurance | Boardwalk Insurance — A Division of Oracle RMS

Plumbing contractor insurance is a specialized commercial insurance program built for the liability exposures that define the plumbing trade — water damage that spreads through walls and floors to multiple units, completed operations claims from slow leaks that go undetected for months, gas line incidents, sewer backup contamination, and the constant presence of high-value tools in an identifiable service van. Boardwalk Insurance helps licensed plumbing contractors across Ontario access competitive quotes from 30+ A-rated Canadian carriers with same-day certificate issuance. Serving all provinces except Quebec.

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What Is Plumbing Contractor Insurance?

Plumbing contractor insurance is a coordinated package of commercial insurance coverages designed for licensed plumbers and plumbing companies. It addresses the specific risks that plumbing work creates: water and sewage damage to finished interiors, gas-related losses, property damage during rough-in and service work, tool theft from service vehicles, and the delayed-loss profile of plumbing failures that surface weeks or months after a job is complete.

What separates plumbing from most other trades as an insurance risk is the potential for a single installation failure to generate a large, fast-spreading, and difficult-to-contain loss. A pinhole leak behind a finished wall — from an improperly compressed fitting, an undertightened compression joint, or a pipe boot that was not seated correctly — can saturate framing, insulation, and drywall for weeks before it becomes visible. In a multi-unit residential building, a leak in one unit can travel through floor assemblies and ceiling cavities to damage one or more units below before it is discovered. A single plumbing failure in a condominium or apartment building can generate a claim involving multiple units, a strata corporation, and an insurer pursuing recovery against the plumbing contractor — even when the original leak was minor.

This damage-amplification risk is what makes completed operations coverage the most important element of a plumbing contractor's CGL policy. It extends liability protection past the day the job is done and paid for, covering the plumber for claims that arise days, weeks, or months later — which is exactly when many plumbing failures become apparent.

Licensing and Insurance Context in Ontario

In Ontario, plumbing contractors are licensed under the Ontario College of Trades, and all plumbing work must comply with the Ontario Plumbing Code under the Building Code Act. Permits are required for most plumbing work beyond basic fixture replacement, and inspections by a Chief Building Official are typically required for rough-in and final plumbing in new construction and major renovation work. Gas fitting work requires a separate gas fitter licence under the Technical Standards and Safety Authority (TSSA).

While neither the Ontario College of Trades nor TSSA mandates commercial liability insurance as a condition of licensing, insurance is practically required to operate professionally. Property managers, condo corporations, general contractors, and commercial building owners universally require proof of CGL insurance before allowing a plumber to perform work. A plumber without a current Certificate of Insurance cannot access most commercial, institutional, or multi-unit residential work in Ontario. More fundamentally, the water and sewage damage exposure created by plumbing work is too financially severe for any practising plumber to absorb personally.

Gas fitting and the TSSA connection: Plumbers who hold a gas fitter licence under TSSA and perform gas fitting work must disclose this work to their insurance broker. Gas work is classified as a distinct and elevated risk by most underwriters — not because TSSA requires insurance, but because gas-related incidents (leaks, explosions, fires) create catastrophic loss potential. A CGL policy written for a plumber who does not disclose gas fitting work may deny a claim arising from a gas-related incident on the grounds that the gas fitting operations were not disclosed at the time of application. Disclosure is not optional.

Who Needs Plumbing Contractor Insurance in Ontario?

Any licensed plumber or plumbing company that performs work for clients — residential or commercial, as a prime contractor or subcontractor — needs plumbing contractor insurance. The following types are the most common:

Independent / Sole Proprietor Plumbers

Self-employed licensed plumbers performing residential service calls, fixture replacements, water heater installations, and small renovation work. Operating as a sole proprietor does not reduce liability exposure — a water damage claim arising from a sole proprietor's installation can reach personal assets unless CGL insurance is in place. Property management companies and condo corporations in Ontario will not allow a sole proprietor plumber onto their managed properties without a current Certificate of Insurance.

Residential Service Plumbers

Plumbers specializing in residential service work — drain clearing, water heater replacement, fixture installation, pipe repairs, and bathroom or kitchen renovation rough-in. Residential service work is high-frequency and involves repeated entry into occupied, finished homes where any property damage is immediately visible to the client and any water release event can escalate quickly in a contained space. The completed operations exposure for a residential service plumber is significant: a water heater installed today may develop a slow leak in three months; a compression fitting on a supply line may begin weeping six weeks after installation.

Residential New Construction Plumbers

Plumbers who perform rough-in and trim-out plumbing on new residential construction — working alongside general contractors, framers, electricians, and HVAC contractors during the build. New construction plumbing subcontractors are required by virtually every standard subcontract agreement to carry their own CGL, name the GC as an Additional Insured, and provide a Certificate of Insurance before starting work. The GC's own CGL does not cover the plumbing subcontractor's independent operations.

Commercial Plumbing Contractors

Plumbers working on commercial buildings — office spaces, restaurants, retail units, healthcare facilities, schools, and industrial properties — face materially higher per-incident liability than residential plumbers. A water line failure in a restaurant kitchen can cause business interruption in addition to physical damage. A drain failure in a medical facility can compromise sterile environments and patient care. A leak in a commercial high-rise can affect multiple floors, multiple tenants, and trigger both property damage claims and business interruption claims simultaneously. Commercial plumbing contracts routinely require $5 million in combined liability, and commercial plumbers should carry both a primary CGL and a Commercial Umbrella to reach those limits cost-effectively.

Multi-Unit Residential Plumbers

Plumbers who work in condominium buildings, apartment complexes, and multi-unit residential properties face a unique amplification risk: a single plumbing failure in one unit can affect multiple units and trigger claims from multiple parties simultaneously. The building owner or strata corporation, the unit owner of the affected suite, and the owners of units below may all have claims arising from a single plumbing incident. A plumber who works regularly in multi-unit residential buildings should carry CGL limits and aggregate limits that reflect this multi-party exposure.

Drain Cleaning and Sewer Specialists

Plumbers who specialize in drain cleaning, hydro-jetting, sewer rodding, and sewer lateral repair carry a distinct risk profile. High-pressure hydro-jetting equipment can fracture aging pipe walls and cause sewer line collapses. Sewer rodding can cause cable breakage inside drains, leaving cutting heads lodged in pipes that require excavation to recover. Sewer backup during cleaning operations can release contaminated wastewater into finished spaces. These operations should be disclosed to the insurer, as some CGL policies contain exclusions or sublimits for hydro-jetting and sewer work that could limit coverage on these specific operations.

HVAC and Mechanical Contractors

Plumbers who also perform heating, ventilation, and air conditioning (HVAC) work — including hydronic heating systems, boiler installation, in-floor radiant systems, and refrigerant handling — carry a combined plumbing and mechanical risk profile. Hydronic heating system failures can cause water damage. Boiler failures can cause pressure releases, flooding, and in extreme cases, structural damage. HVAC work that includes refrigerant handling falls under TSSA regulations separate from plumbing licensing. Contractors who perform both plumbing and HVAC work should confirm with their broker that both scopes of work are explicitly covered under their CGL.

Gas Fitting Contractors

Plumbers who hold a gas fitter licence under TSSA and perform natural gas or propane fitting work — gas line installation, appliance connections, and gas system pressure testing — carry the highest-severity liability exposure in the plumbing trade. A gas leak from an improperly tightened fitting, a connector that develops a crack, or a gas line severed during adjacent work can cause explosions, fires, and property destruction on a scale that exceeds most other plumbing incidents by an order of magnitude. Gas fitting must be explicitly disclosed to the insurer and confirmed as a covered operation under the CGL before any gas work is performed. A standard plumbing CGL that does not explicitly include gas fitting will deny a claim arising from a gas-related incident.

What Does Plumbing Contractor Insurance Cover?

1. Commercial General Liability (CGL)

CGL is the foundation of every plumbing contractor's insurance program. It protects against third-party claims for bodily injury and property damage arising from your plumbing work, your business operations, and — critically — your completed work through completed operations coverage.

For plumbing contractors, the two most important components of CGL are water damage coverage and completed operations coverage. Water damage must be explicitly included in the policy without a sublimit that would cap coverage on the most common and potentially largest category of claim a plumber faces. Completed operations must extend protection past the day of job completion, covering the plumber for water damage, sewage damage, and related losses that emerge after the work is done and paid for.

What CGL covers for plumbing contractors:

Standard CGL limits for plumbers in Ontario:

The multi-unit residential aggregate problem: A plumber who works regularly in multi-unit residential buildings should pay close attention to the CGL's aggregate limit — the total amount the insurer will pay across all claims in a policy year — in addition to the per-occurrence limit. If a single incident in a condo building generates claims from multiple unit owners and the strata corporation simultaneously, each claim may be treated as a separate occurrence drawing from the same aggregate. A $2 million per-occurrence limit provides little protection if the aggregate limit is also $2 million and multiple claims are filed in the same year.

2. Tools and Equipment Coverage

Plumbing service vehicles are identifiable targets for tool theft. A fully equipped plumbing service van — pipe cutters, press tools, soldering equipment, drain cameras, diagnostic equipment, pipe threading machines, drain cleaning machines, power tools, and hand tools — can represent $15,000 to $75,000 or more in replacement value. Tools and Equipment coverage (Inland Marine or Equipment Floater) protects these assets against theft, physical damage, and loss wherever they are.

What tools and equipment coverage covers:

Press tool and drain camera replacement costs: Modern press fitting tools and video inspection cameras represent the highest-value single items in most plumbing vans. A commercial-grade press tool system can cost $3,000 to $8,000; a professional drain inspection camera with locator can cost $5,000 to $15,000. These items have long lead times from suppliers and are prime theft targets. They should be specifically scheduled on the equipment floater rather than covered under a blanket limit that may be insufficient.

3. Commercial Auto Insurance

Plumbing service vans are mobile workshops — loaded with tools, parts, pipe, fittings, and equipment, driven daily across multiple service calls. Personal auto policies explicitly exclude commercial use. A plumber in an at-fault accident while driving to a service call, with a fully loaded van, is operating commercially and will find a personal auto claim denied. Commercial auto for plumbers must cover the van or truck, the contents being transported, and third-party liability at limits appropriate for the contracts being worked.

What commercial auto covers:

4. Professional Liability (Errors & Omissions)

Professional Liability is relevant for plumbers who provide formal design specifications, system designs, written assessments, or consulting services — most commonly master plumbers working on commercial or industrial mechanical projects, plumbers who design hydronic heating systems, and plumbing contractors who perform project management roles.

CGL explicitly excludes losses arising from professional services. A plumber who specifies an undersized water heater for a commercial kitchen, designs a hydronic system with inadequate capacity, or provides written advice that a client relies on to their detriment faces a professional negligence claim that no CGL will cover. Plumbing contractors who provide any formal advisory or design service should discuss Professional Liability with their broker.

5. Umbrella / Excess Liability

A Commercial Umbrella provides additional liability limits above the primary CGL and auto policies. For plumbing contractors who work on commercial properties, high-rise residential buildings, or institutional facilities, the standard $2 million CGL limit may be insufficient for a single large-scale water damage or gas incident. An Umbrella at $3 million above a $2 million primary CGL reaches the $5 million combined limit that most commercial contracts require — more cost-effectively than increasing primary limits alone.

6. Contractor's Equipment — Specialty Plumbing Equipment

Plumbing contractors who own high-value specialty equipment — hydro-jetting units, sewer inspection camera systems, pipe relining equipment, pipe bursting equipment — should schedule these items individually on a Contractors' Equipment policy. Blanket equipment floaters may have per-item sublimits that are inadequate for specialty equipment replacement costs. Individual scheduling ensures each high-value piece of equipment is covered at its actual replacement cost.

Coverage Comparison: Plumbing Contractor Types

Plumber Type CGL Tools & Equipment Commercial Auto Professional Liability Umbrella
Sole Proprietor / Residential Service Required Required Required Rarely Rarely
Residential New Construction Sub Required Required Required Rarely Rarely
Multi-Unit Residential Plumber Required (high aggregate) Required Required Rarely Recommended
Commercial Plumbing Contractor Required Required Required Recommended Required
Drain / Sewer Specialist Required (hydro-jet disclosed) Required Required Rarely Recommended
Gas Fitting Contractor Required (gas disclosed) Required Required Rarely Recommended
HVAC / Mechanical Contractor Required (HVAC scope disclosed) Required Required Recommended Recommended
Master Plumber / Design-Build Required Required Required Required Recommended

The Water Damage Amplification Risk: Why Multi-Unit Buildings Change Everything

Water damage in a single-family home is serious. Water damage in a multi-unit residential building is categorically different — and it is the risk that most plumbing contractors underestimate when choosing their coverage limits.

In a condominium or apartment building, water does not stop at the walls of the unit where a plumbing failure occurs. It travels down through floor assemblies, through mechanical chases, and through ceiling cavities to affect units below and beside the source unit. A water heater that fails in a 10th-floor unit can damage the 9th, 8th, and 7th floors before it is discovered. A pressurized supply line failure can release hundreds of litres of water in minutes, flooding multiple units before a building superintendent can locate and shut the isolation valve.

The claims that result from a multi-unit water damage event are correspondingly complex. The strata corporation or building owner has a claim for common area damage and building systems. Each affected unit owner has a separate claim for their contents, finishes, and personal property. The unit owners below may have business interruption claims if they are displaced. The strata corporation's property insurer will pursue recovery (subrogation) against the plumbing contractor whose work caused the loss. All of these claims can flow back to the plumber through the same CGL policy — and they will all draw from the same aggregate limit if they arise from a single occurrence.

A plumber who regularly works in multi-unit residential buildings and carries only a $2 million CGL with a $2 million aggregate is exposed to aggregate exhaustion from a single large event. Carrying higher per-occurrence limits, higher aggregate limits, or a Commercial Umbrella that adds a separate aggregate above the primary policy provides meaningful protection against this specific risk.

Common Plumbing Contractor Insurance Claims in Ontario

Slow Leak Water Damage — Completed Operations

A slow leak from an improperly sealed compression fitting, an undertightened push-fit connection, or a degraded pipe boot does not announce itself. It saturates insulation and framing over weeks, promotes mould growth in wall cavities, and typically only becomes visible when water staining appears on a finished surface — long after the plumber has been paid and moved on. These completed operations claims are among the most expensive in the plumbing trade because the damage has had time to spread before it is detected.

Example: A residential plumber replaces a kitchen supply line during a renovation. Eight weeks later, the homeowner notices soft drywall under the kitchen sink. Investigation reveals that the compression fitting on the cold water supply was not fully seated — water has been weeping into the cabinet and subfloor for approximately six weeks. The cabinet, subfloor, and adjacent hardwood flooring require full replacement. Total claim: $38,000. The plumber's completed operations coverage responds.

Coverage responds: Commercial General Liability (CGL) — Completed Operations

Multi-Unit Water Damage — Single Source, Multiple Claims

A pressurized supply line failure in a multi-unit residential building is the highest-severity plumbing claim scenario. Pressure at the service line in a residential building can be 60 PSI or higher. A full-bore supply line failure at this pressure releases water at a rate that can fill and overflow multiple units before any shutoff is activated. The resulting claims involve structural damage, flooring replacement, drywall remediation, mould treatment, contents replacement, and temporary accommodation costs across every affected unit.

Example: A plumber completes a water heater replacement in a 15th-floor condominium unit. A push-fit connection on the cold supply is not fully engaged. Three days later, the fitting releases under pressure while the unit owner is away on a long weekend. Water flows undetected for approximately 36 hours, damaging the 15th, 14th, and 13th floor units. The total claim — structural repairs, flooring, drywall, contents, and temporary accommodation for three displaced unit owners — reaches $215,000. The strata corporation and each affected unit owner file separately; all claims are ultimately resolved through the plumber's CGL.

Coverage responds: Commercial General Liability (CGL) — with aggregate limit sufficient to cover multiple simultaneous claims

Sewage Backup and Contamination During Drain Work

Sewer and drain work creates a specific contamination risk that is distinct from clean water damage. A sewer backup releases Category 3 water — sewage-contaminated wastewater — which requires professional biohazard remediation rather than standard water damage restoration. The per-square-foot cost of sewage remediation is significantly higher than clean water damage, and the displacement of occupants during remediation adds additional costs. Drain cleaning operations that cause a backup in an occupied unit can generate contamination claims that reach well beyond what the original drain cleaning job was worth.

Example: A drain cleaning contractor is called to clear a slow main drain in a condominium unit. During high-pressure hydro-jetting, the drain assembly at a wye connection fractures, releasing sewage-laden wastewater into the utility room and the adjacent finished bedroom. Full sewage remediation — removal and disposal of affected drywall, flooring, insulation, and cabinetry, plus biohazard cleaning and surface treatment — totals $67,000. The plumber's CGL responds to the contamination claim.

Coverage responds: Commercial General Liability (CGL)

Gas Line Incident — Leak and Fire Damage

Gas fitting work carries the most severe potential loss outcome in the plumbing trade. A gas leak from an improperly assembled fitting, a connection that develops a hairline fracture, or a gas line nicked during adjacent work can ignite and cause a structural fire or explosion. These incidents can destroy homes, injure occupants, and generate claims that dwarf any other plumbing liability scenario. Plumbers who perform gas fitting work without disclosing it to their insurer, or who perform it under a policy that does not explicitly include gas operations, have no coverage if a gas-related incident occurs.

Example: A gas fitter plumber installs a new natural gas line for a kitchen range during a renovation. A compression fitting on the new line develops a gas leak that goes undetected for several hours while the homeowners are away. The accumulating gas is ignited by the furnace pilot light, causing a fire that causes $320,000 in structural damage to the home. The plumber's CGL — which explicitly includes gas fitting operations — responds to the property damage claim.

Coverage responds: Commercial General Liability (CGL) — with gas fitting operations explicitly disclosed and covered

Accidental Damage to Finished Surfaces During Service

Service calls in high-value finished residential and commercial interiors create constant exposure to accidental property damage. Cutting into a tile wall to access a concealed valve, drilling through cabinetry to run pipe, and removing finished flooring to access a buried drain all involve risk of unintended damage to expensive finished surfaces. Tile cracking during cutting, hardwood flooring scratched by equipment, and cabinetry damaged during access are among the most frequent minor claims plumbers face.

Example: A plumber cutting into a tile backsplash to access a shut-off valve behind a kitchen wall causes three tiles adjacent to the cut to crack due to vibration from the reciprocating saw. The tile pattern is discontinued and cannot be matched; a section of the full backsplash requires replacement. Total cost of tile replacement and labour: $6,800. The homeowner files a CGL claim.

Coverage responds: Commercial General Liability (CGL)

Tool Van Break-In and Theft

Plumbing service vans are a high-value, identifiable target for tool theft in Ontario. A fully stocked plumbing van is visually recognizable — pipe racks, equipment markings, and trade insignia identify it to thieves. An overnight break-in to a plumbing service van can remove tools and equipment worth $15,000 to $60,000, halt service the following morning while replacement tools are sourced, and create operational disruption that affects multiple scheduled clients.

Example: A residential service plumber parks their fully stocked service van on a residential street overnight. In the early morning, thieves break the side door lock and remove a press tool kit, a drain inspection camera with locator, power tools, a pipe threading machine, and assorted hand tools with a combined replacement cost of $44,000. The plumber's tools and equipment coverage responds minus the deductible.

Coverage responds: Tools and Equipment Coverage (Inland Marine / Equipment Floater)

Freeze Damage from Inadequate Winterization

Plumbers who perform cottage, seasonal property, or vacation home winterization carry completed operations exposure specific to freeze damage. A property that is improperly winterized — with residual water left in a trap, an isolation valve not fully closed, or compressed air not reaching a low-point drain — can sustain significant freeze damage when outdoor temperatures fall. When the property owner returns in spring to find burst pipes and water damage, the plumber who performed the winterization is a natural target for recovery.

Example: A plumber performs fall winterization on a seasonal cottage. A low-point drain on the hot water tank supply is not fully opened during blow-out, leaving residual water in the line. During a February cold snap, the line freezes and bursts, damaging the mechanical room and basement storage area. Spring thaw reveals $24,000 in water damage. The property owner's insurer pursues the plumber for recovery. Completed operations coverage responds.

Coverage responds: Commercial General Liability (CGL) — Completed Operations

Damage to Underground Services During Excavation

Plumbers who perform exterior work — lateral repairs, weeping tile installation, sewer line replacement, and service connections — carry the same underground utility strike exposure as excavation contractors. A high-pressure water main struck during lateral excavation, a gas service line severed during sewer replacement, or a telecommunications conduit damaged during weeping tile installation can generate emergency repair costs, service disruption charges, and third-party claims that are substantially larger than the original plumbing contract value.

Example: A plumbing contractor excavating for a sewer lateral replacement strikes an unmarked high-pressure irrigation main for a commercial property next door. The strike causes a geyser that floods the neighbouring property's parking lot and requires emergency utility repair. Total claim: $18,500 in utility repair, sodding, and parking lot resurfacing. The plumber had obtained locates, but the irrigation line was not reflected on the utility locate records.

Coverage responds: Commercial General Liability (CGL)

Frequently Asked Questions About Plumbing Contractor Insurance in Ontario

What insurance does a plumbing contractor need in Ontario?

A plumbing contractor in Ontario needs at minimum: Commercial General Liability (CGL) at $2 million per occurrence for water damage, property damage, and injury claims; Tools and Equipment coverage for the theft and physical damage of tools and specialty equipment; and Commercial Auto insurance for any service vehicle used for work. Plumbers who perform gas fitting work must disclose this to their insurer and confirm gas operations are explicitly covered under the CGL. Commercial plumbers and those working in multi-unit residential buildings should consider a Commercial Umbrella to reach $5 million in combined liability. Master plumbers or those who provide design or specification services should also consider Professional Liability (E&O).

Does plumbing insurance cover water damage claims?

Yes. CGL insurance for plumbers covers water damage claims arising from your plumbing work — including leaks from failed fittings, burst supply lines, water heater failures, and improperly installed connections. Critically, this coverage extends through completed operations — a leak that develops and causes water damage weeks or months after the job is finished is still a covered claim under the CGL, provided the policy was in force when the work was performed and remains active when the claim is made. Plumbing contractors should confirm that their CGL does not contain a water damage sublimit that would cap coverage below the full per-occurrence limit on their most frequent category of claim.

Is plumbing insurance required in Ontario?

Ontario law does not mandate commercial liability insurance as a condition of plumbing licensing under the Ontario College of Trades. However, plumbing insurance is effectively required to operate professionally. General contractors, property management companies, condo corporations, and commercial building owners uniformly require proof of CGL insurance before allowing plumbers onto managed properties. The Ontario College of Trades licensing requirement and the TSSA gas fitter licensing requirement are regulatory obligations; maintaining CGL insurance is the practical commercial obligation that allows a licensed plumber to actually do the work.

Does my CGL cover gas fitting work?

Only if gas fitting operations are explicitly disclosed to your insurer and confirmed as a covered operation under your policy. Gas fitting work — natural gas and propane line installation, appliance connections, and gas system pressure testing — is a distinct and elevated risk that most underwriters treat separately from standard plumbing. A standard plumbing CGL policy that was written without disclosure of gas fitting operations may treat a gas-related claim as arising from an undisclosed operation and deny coverage. Gas fitter plumbers must inform their broker of their gas fitting licence and scope of work at the time of application and at each renewal. The premium for a policy that includes gas fitting is higher than for plumbing only — that premium reflects the real additional risk, and it is essential coverage for anyone who performs gas work.

How much does plumbing contractor insurance cost in Ontario?

Plumbing contractor insurance in Ontario typically costs between $1,000 and $4,500 per year for a sole proprietor or small plumbing company, depending on annual revenue, the types of work performed (residential service, new construction, commercial, or gas fitting each carry different risk ratings), number of employees, and claims history. A self-employed residential plumber with $150,000 in annual revenue might pay $1,200 to $2,000 per year for a basic CGL and tools program. A commercial plumbing contractor with multiple service technicians and $2 million in annual revenue will pay more — typically $3,500 to $8,000 or above across a complete program including CGL, tools, auto, and umbrella. Comparing quotes across multiple carriers through Boardwalk Insurance typically produces the most competitive available pricing for a plumber's specific risk profile.

What is completed operations coverage and why is it essential for plumbers?

Completed operations coverage is an extension of CGL that protects you against claims arising from plumbing work you have already finished and been paid for. It is the most important coverage element in a plumbing contractor's policy for one simple reason: plumbing failures are often delayed. A compression fitting that begins weeping slowly may not produce visible water damage for six to eight weeks. A water heater connection that gradually deteriorates may not cause a significant leak for three months. A concealed supply line that was not properly pressure-tested may hold for a year before developing a pinhole. Without completed operations coverage, your insurance only responds to incidents that occur while you are actively on the job. With it, you are protected for the full period within which claims can reasonably arise from your past work — typically as long as your policy remains in force.

Why do I need higher CGL limits for condo and multi-unit buildings?

Multi-unit residential buildings amplify the financial consequences of a single plumbing failure in ways that single-family homes do not. When water from a plumbing failure in one unit travels through the floor assembly and ceiling cavity of the unit below, the incident that started as one claim becomes two. When it reaches a third floor, it becomes three simultaneous claims — each potentially involving structural repairs, contents replacement, temporary accommodation, and personal inconvenience damages. The strata corporation typically also has a claim for common area damage. A $2 million per-occurrence limit sounds substantial, but when five separate claimants file against the same incident, and each claim is $50,000 to $80,000, the aggregate can be exhausted. Plumbers who work regularly in multi-unit buildings should carry either higher primary limits or a Commercial Umbrella that provides a separate, additional aggregate above the primary CGL.

Is hydro-jetting covered under standard plumbing insurance?

Coverage for high-pressure hydro-jetting operations depends on the specific insurer and policy. Some standard plumbing CGL policies cover hydro-jetting as part of standard drain and sewer operations; others treat high-pressure water jetting as a distinct operation that must be disclosed and may be subject to specific conditions or exclusions — particularly for older, deteriorated sewer systems where high-pressure jetting creates a risk of pipe fracture. Drain cleaning specialists who regularly use hydro-jetting should disclose this work to their broker and confirm that high-pressure water jetting is explicitly included in their policy's covered operations.

Does plumbing insurance cover mould remediation claims?

Mould that results from a plumbing water damage event is typically covered under CGL as a consequential damage arising from the covered water damage. However, the coverage mechanics depend on the timing and cause. If a plumber's leaking installation causes water damage that results in mould growth, and the homeowner discovers both the water damage and the mould simultaneously, the full remediation — including mould treatment — is typically covered as part of the water damage claim. If the mould is discovered months after the leak was repaired and the source is disputed, the coverage analysis becomes more complex. Some policies also contain specific mould exclusions or sublimits. Plumbing contractors should review their policy's mould-related language and discuss any gaps with their broker.

Can I get same-day certificate of insurance as a plumber?

Yes. Boardwalk Insurance issues Certificates of Insurance (ACORD 25) the same business day for active policyholders — including Additional Insured endorsements, Waiver of Subrogation, and Primary and Non-Contributory wording as required by general contractor and property management contracts. For new clients, most plumbing insurance quotes are returned within one business day and coverage can be bound immediately, with the certificate issued the same day. Contact us at +1-416-477-9771 for urgent certificate requests when a contract or property access is time-sensitive.

Why Plumbing Contractors Choose Boardwalk Insurance

Boardwalk Insurance is a RIBO-registered commercial insurance broker and a division of Oracle RMS. We specialize in contractor and trade insurance, with direct experience placing coverage for residential service plumbers, commercial plumbing contractors, drain and sewer specialists, and gas fitting contractors across Ontario and nationally. We access 30+ A-rated Canadian carriers — including Intact, Aviva, Economical, Northbridge, Chubb, Travelers, CNA, and Gore Mutual.

Advisors Who Understand Plumbing Trade Exposure

You work directly with licensed Ontario brokers who understand the distinct risk profile that plumbing creates — the water damage amplification risk in multi-unit buildings, the completed operations timeline of plumbing failures, and the absolute necessity of disclosing gas fitting work to the insurer. We structure programs that match your actual scope of work and that will respond when a claim arises.

Carriers That Cover Gas Fitting

Not every insurer will write gas fitting operations under a standard plumbing CGL. Boardwalk Insurance has established market access to carriers that accommodate gas fitter plumbers and can confirm gas operations as an explicitly covered scope under the policy — not a silent exclusion waiting to be discovered at the time of a claim.

Same-Day Certificates for New Contracts and Property Access

We issue contract-ready Certificates of Insurance the same business day — including Additional Insured endorsements, Waiver of Subrogation, and Primary and Non-Contributory wording. Plumbers who need to satisfy a general contractor or property manager requirement before starting a job will not be waiting on their broker.

Competitive Pricing Across 30+ Carriers

We compare your submission across more than 30 A-rated carriers to find the most competitive pricing for your plumbing trade profile — residential service, new construction, commercial, drain specialist, or gas fitting. Our carrier relationships regularly produce pricing that plumbers cannot obtain by approaching insurers directly.

Claims Advocacy

When a water damage claim, theft, or vehicle incident occurs, our team advocates on your behalf from first notice of loss through final settlement, ensuring your insurer responds promptly and fairly.

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Where We Serve Plumbing Contractors

Boardwalk Insurance is headquartered in Vaughan, Ontario, and serves plumbing contractors across the Greater Toronto Area, Southern Ontario, and all Canadian provinces except Quebec.

Ontario Markets We Serve

Toronto | Mississauga | Vaughan | Oakville | Hamilton | Kitchener | Brampton | Markham | Richmond Hill | Burlington | Guelph | London | Ottawa | Windsor | Sudbury | Thunder Bay

National Coverage

We also serve plumbing contractors in Alberta (Calgary, Edmonton), British Columbia (Vancouver, Victoria), Manitoba (Winnipeg), Saskatchewan (Regina, Saskatoon), Nova Scotia (Halifax), Newfoundland and Labrador (St. John's), and New Brunswick. Coverage is available in all Canadian provinces and territories except the Province of Quebec.

Get a Plumbing Contractor Insurance Quote Today

Whether you are a sole proprietor residential service plumber or a multi-crew commercial plumbing company, Boardwalk Insurance builds plumbing insurance programs that address your actual trade exposure — water damage, completed operations, gas fitting, and multi-unit residential risk — satisfy your contract and licensing requirements, and protect your tools and business from the claims that define plumbing liability.

We compare quotes from 30+ A-rated Canadian carriers with no obligation, and most plumbing contractors receive a quote within one business day.

Speak with a licensed plumbing contractor insurance advisor at +1-416-477-9771 or email sales@myboardwalk.ca. Our office is at 10 Great Gulf Dr, Suite 202, Vaughan, ON L4K 0K7. Business hours are Monday to Friday, 9AM to 5PM EST.

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