
Plumbing Services Insurance
Sutherland Insurance is a fifth-generation independent brokerage in Guelph, Ontario that places plumbing services insurance across the province. A plumbing programme combines commercial general liability, tools and equipment, an installation floater and commercial automobile, with professional liability arranged where the work includes design. Sutherland Insurance has placed commercial business from Guelph, Ontario since 1870.
Key takeaways
- Plumber is one of Ontario's 23 compulsory trades. Work in a compulsory trade is performed by the holder of a Certificate of Qualification, a Provisional Certificate of Qualification or a Registered Training Agreement, and journeypersons renew that certificate each year with Skilled Trades Ontario.
- Escape of water into a finished building is the exposure that defines this trade. It is a third-party property claim rather than a workmanship claim, and it is where a plumbing contractor's liability limit is tested.
- Workplace safety insurance coverage through the Workplace Safety and Insurance Board has been mandatory in Ontario construction since 1 January 2013, including for most independent operators, sole proprietors and partners.
- Sutherland Insurance places commercial business across the markets it holds contracts with.
- Who it is for
- Ontario plumbing contractors, service plumbers, drain and sewer contractors, and mechanical firms carrying plumbing scopes
- Trade status in Ontario
- Compulsory: one of 23 compulsory trades regulated by Skilled Trades Ontario
- Certification required to practise
- Certificate of Qualification, Provisional Certificate of Qualification, or Registered Training Agreement
- Liability required by law
- No provincial statute requires commercial general liability for most trades
- Workplace coverage required
- Yes, WSIB coverage mandatory in construction since 1 January 2013
- Defining claim exposure
- Escape of water into a finished building
What is plumbing services insurance?
Plumbing services insurance is a commercial programme arranged around a plumbing operation. It combines liability for injury and water damage caused to others, coverage on the tools and vehicles the business owns, coverage on fixtures and materials before installation, and professional liability where the work includes system design.
Every trade has a signature claim, and for plumbing it is water in a building that was dry. A single opened joint in an occupied office tower produces a loss that runs through several floors of finished ceilings, flooring, contents and business interruption, none of which belongs to the plumbing contractor. That is a third-party property claim, and it is why liability limits on plumbing risks are set higher than the trade's revenue alone would suggest.
The second feature that separates this trade from general contracting is the licensing regime it operates under. Plumber is a compulsory trade in Ontario, which means the person doing the work holds a current certificate. Insurers treat that as an underwriting fact: certification status, and whether uncertified labour is used on site, are questions asked at the point of quotation.
What can an Ontario plumbing services insurance policy cover?
What a policy can cover
- Commercial general liability for third-party bodily injury and property damage arising from the work, including water damage to a building and its contents
- Completed operations coverage, which responds where finished work causes damage after the plumber has left the site, excluding the workmanship itself
- Tools and equipment coverage, scheduled and unscheduled, at a site, in transit and in a service vehicle
- An installation floater on fixtures, water heaters, boilers and piping in transit and at the site before they become part of the structure
- Commercial automobile coverage on service vans and trucks, and non-owned automobile liability where employees use their own vehicles
- Plumber professional liability, where the business specifies, sizes or designs a system rather than only installing it
Commonly excluded under standard Ontario plumbing services insurance wordings
- The cost of correcting the contractor's own faulty workmanship, materials or design
- Damage to that particular part of the property the plumber was working on when the damage occurred
- Injury to the contractor's own workers, which the Workplace Safety and Insurance Board system addresses
- Damage to property in the contractor's care, custody or control, unless that exposure is specifically arranged
- Work performed by an uncertified person where the policy is conditioned on certification, on many Ontario wordings
- Mould, fungi and gradual seepage over an extended period, which most Ontario wordings treat separately from a sudden escape of water
Exclusions vary by insurer and by policy form; the issued policy governs.
How much does plumbing services insurance cost in Ontario?
The factors that move an Ontario plumbing services insurance premium, in approximate order of influence, and why insurers look at each one.
| Rating factor | Why |
|---|---|
| Commercial and institutional work against residential service | One escape of water in a multi-tenant building reaches contents and business interruption on several floors. |
| Annual revenue and payroll | Contractor liability rates are applied per unit of revenue or payroll. |
| Hot work, soldering and torch work performed | Fire arising from torch work inside a finished building is the largest severity driver after water. |
| New construction against service and repair calls | New construction is worked in an unfinished building; service work is performed among a client's finished contents. |
| Certification status of the workforce | Plumbing is a compulsory trade, and certification is an underwriting question on Ontario plumbing risks. |
| Third-party liability limit selected | Water losses in commercial buildings are a severity exposure, so limits are set above the trade's revenue profile. |
| Value of tools and vehicles scheduled | The schedule is the insurer's exposure on theft from a service vehicle overnight. |
What is a plumbing business required to hold in Ontario?
Plumber is one of Ontario's 23 compulsory trades. Practising it requires a valid Certificate of Qualification, Provisional Certificate of Qualification or Registered Training Agreement, and journeypersons renew that certificate annually with Skilled Trades Ontario. Workplace safety insurance through the Workplace Safety and Insurance Board has been mandatory in Ontario construction since 1 January 2013.
No provincial statute requires commercial general liability for most trades. Certification is the statutory requirement; liability coverage is imposed by contract, by permit and by the parties a plumbing business works for. Which policies are arranged, and at which limits, depends on circumstances that vary from one business to the next:
- What limits a general contractor, property manager or municipality specifies, and which parties must be named as additional insured.
- Whether the work is new construction, tenant improvement, or service and repair inside occupied buildings.
- Whether the business performs any design, sizing or specification work alongside installation.
- Whether the business engages subcontractors, and whether their certificates and coverage are collected and current.
- Whether backflow prevention, cross-connection control or sewer and drain work forms part of the scope.
What situations does plumbing services insurance commonly address in Ontario?
Plumbing programmes are arranged for a wide range of operations across Ontario, and the coverage available differs in each. The situations below are common among Sutherland Insurance clients in Guelph and across the province, and each one changes which markets will write the risk.
- A Guelph service plumber whose repair fails overnight and floods the two floors below an occupied unit.
- A supply line opened during a commercial fit-out that damages a tenant's stock and interrupts their trading.
- Torch work on a soldered joint that ignites material inside a finished wall cavity.
- A service van broken into overnight, with power tools and a drain camera taken.
- A water heater damaged in transit before it is installed, covered under an installation floater rather than liability.
How Do I Get Business Insurance Through Sutherland Insurance?
Getting insurance through Sutherland Insurance is simple. You can request a quote online or call 519-822-0160 to speak with a licensed broker. We take the time to understand your business, identify your exposures, and find coverage options that fit your needs.
Our Process:
- Request a Quote. Complete an online quote request or call our office to speak with a licensed insurance broker.
- Tell Us About Your Business. Your broker will gather information about your operations, property, revenues, employees, vehicles, contracts, and any other areas that may require coverage.
- Review Your Risks and Coverage Needs. We assess your business exposures and insurance requirements to determine the appropriate coverage limits and options.
- Market Your Account. Sutherland Insurance compares the available commercial markets to help find the best combination of coverage, service, and price.
- Present Your Options. Your broker will review the available quotes and provide recommendations based on your specific needs and goals.
- Bind Coverage and Provide Documentation. Once you select coverage, we arrange the policy and provide any required documentation, including certificates of insurance for clients, landlords, lenders, or other third parties.
What makes Sutherland Insurance different from a direct insurer?
When a claim happens, Sutherland Insurance acts for the client with the insurer, and an in-house claims representative is available on any claim. Sutherland Insurance is an independent brokerage and compares the markets it holds contracts with rather than selling one company’s product. A person answers the phone at Sutherland Insurance, 519-822-0160, Monday to Friday, 8:30 a.m. to 5:00 p.m.

Frequently asked questions
Does a plumbing business need insurance in Ontario?
No provincial statute requires commercial general liability for most trades, but general contractors, property managers, municipalities and commercial clients impose it by contract before work starts. Workplace safety insurance through the Workplace Safety and Insurance Board has been mandatory in Ontario construction since 1 January 2013, including for most independent operators and sole proprietors.
Is plumbing a compulsory trade in Ontario?
Plumber is one of Ontario's 23 compulsory trades. Practising a compulsory trade requires a valid Certificate of Qualification, a Provisional Certificate of Qualification, or a Registered Training Agreement, and journeypersons renew their certificate each year. Skilled Trades Ontario maintains a public register where certification can be confirmed, and limited exemptions apply to certain groups.
Does plumbing insurance cover water damage to a client's building?
Commercial general liability responds to third-party property damage caused by the work, which is the category most escape-of-water losses fall into. It excludes the cost of correcting the faulty joint itself and damage to the particular part being worked on. Care, custody and control limits also apply. The issued policy governs in every case.
What is plumber professional liability insurance?
Professional liability insurance responds where a client alleges financial loss from advice, specification or design rather than from physical damage. A plumbing business that sizes or specifies a system, rather than only installing to another party's drawings, carries that exposure. Whether it applies depends on the scope of work performed.
Are plumbing tools covered if they are stolen from a service van?
Tools coverage responds to theft from a vehicle on most Ontario contractor wordings, subject to the scheduled and unscheduled limits and to a forcible-entry requirement. Tools left in an unlocked vehicle are excluded on most wordings. Limits, sub-limits and overnight security conditions vary by insurer, and the issued policy governs.
Does plumbing insurance cover work done by a subcontractor?
Liability arising from subcontracted work commonly returns to the hiring business where the subcontractor carries no coverage of its own. Ontario insurers rate subcontractor use directly and ask whether certificates are collected and current. Collecting a certificate of insurance from each subcontractor before work starts is what keeps that exposure with the party that created it.
How many markets does Sutherland Insurance place plumbing business across?
Sutherland Insurance places commercial business, including plumbing and the mechanical trades, across the markets it holds contracts with together with multiple managing general agents and affiliates across Canada. It is an independent brokerage in Guelph licensed by the Registered Insurance Brokers of Ontario.
Get your plumbing services insurance quote
A licensed Sutherland Insurance broker compares the available markets on every quote request.
Get your plumbing services insurance quote Call 519-822-0160
A real person answers, Monday to Friday, 8:30 a.m. to 5:00 p.m.
