Plumbing Service Contract (Canada)
This Plumbing Services Agreement (the "Agreement") is entered into on [Effective Date] (the "Effective Date") by and between:
Parties
[Client Name], [Client Type], with an address at [Client Address], [Client City], [Client Province] [Client Postal Code] (hereinafter referred to as the "Client"); and
[Plumber Name], [Plumber Type], with an address at [Plumber Address], [Plumber City], [Plumber Province] [Plumber Postal Code], holding trade licence/registration number [Plumber Licence Number] (hereinafter referred to as the "Plumber").
The Client and the Plumber are collectively referred to as the "Parties" and individually as a "Party."
WHEREAS the Client requires plumbing services at the [Property Type] property located at [Property Address], [Property City], [Property Province] [Property Postal Code] (the "Property");
WHEREAS plumbing is a compulsory trade under the Building Opportunities in the Skilled Trades Act, 2021 (S.O. 2021, c. 28) in Ontario and equivalent provincial skilled trades legislation, and the Plumber represents that it holds a valid Certificate of Qualification, Provisional Certificate of Qualification, or equivalent provincial licence authorizing the performance of plumbing work;
WHEREAS the Plumber possesses the necessary certifications, experience, equipment, and insurance to provide professional plumbing services in compliance with the National Plumbing Code of Canada and the applicable provincial plumbing code;
NOW, THEREFORE, in consideration of the mutual promises and obligations set forth herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:
Licensing and Certification
The Plumber represents and warrants that all plumbing work under this Agreement shall be performed by individuals who hold a valid Certificate of Qualification (C of Q), Provisional Certificate of Qualification, or Registered Training Agreement issued by Skilled Trades Ontario or the equivalent provincial authority, as required by the Building Opportunities in the Skilled Trades Act, 2021 and applicable provincial legislation.
The Plumber's trade licence/registration number is [Plumber Licence Number]. The Plumber shall ensure that its registration with Skilled Trades Ontario (or the equivalent provincial body) remains current and in good standing throughout the duration of this Agreement. The Plumber shall provide proof of certification to the Client upon request.
Scope of Work
The Plumber shall perform the following plumbing services (the "Work"): [Plumbing Services].
Detailed description of the Work: [Work Description].
The Plumber shall perform all Work in a professional and workmanlike manner in compliance with the National Plumbing Code of Canada (NPC 2020/2025), the applicable provincial plumbing code, the Ontario Building Code (O. Reg. 332/12) or equivalent provincial building code, and all applicable municipal by-laws. All materials, fixtures, and fittings installed shall meet or exceed the standards prescribed by the applicable plumbing code and shall bear the appropriate CSA (Canadian Standards Association) or equivalent certification marks.
Service Type and Timeline
This Agreement is for a [Service Type] engagement. The Plumber shall commence the Work on or about [Start Date] and shall use reasonable efforts to complete the Work by [Completion Date].
The estimated completion date is subject to delay caused by permit processing, inspection scheduling, material availability, the discovery of unforeseen conditions (such as concealed plumbing, mould, or asbestos), or other circumstances beyond the Plumber's reasonable control. The Plumber shall notify the Client promptly of any anticipated delays.
Materials and Parts
All materials, parts, fixtures, and fittings required for the Work shall be provided by the [Materials Provider]. Where the Plumber provides materials, the Plumber shall use materials that comply with the National Plumbing Code of Canada and bear the appropriate CSA, NSF, or equivalent certification marks. The Plumber shall not use substandard, counterfeit, or non-code-compliant materials.
Where the Client provides fixtures or materials, the Client is responsible for ensuring compatibility and code compliance. The Plumber reserves the right to refuse to install Client-provided materials that do not meet code requirements or manufacturer specifications, without liability for any resulting delay.
Payment
In consideration of the Work, the Client shall pay the Plumber a [Payment Structure] of CAD $[Compensation] (the "Compensation"), based on an estimated [Estimated Hours] hours of labour, plus applicable GST/HST at the rate of [GST/HST Rate]%. Emergency or after-hours service calls shall be billed at CAD $[Emergency Rate] per hour. A deposit of CAD $[Deposit Amount] shall be payable upon execution of this Agreement, with the balance due [Payment Due Date].
Payment shall be made by [Payment Method]. The Plumber shall issue a detailed invoice itemizing labour hours, materials, permits, and taxes. The Plumber is responsible for collecting and remitting all applicable GST/HST in accordance with the Excise Tax Act (Canada). If the Plumber's annual revenue exceeds CAD $30,000, the Plumber must be registered for GST/HST and provide a valid registration number upon request.
Independent Contractor
The Plumber is an independent contractor and not an employee, agent, or partner of the Client. Nothing in this Agreement shall be construed to create an employment relationship, partnership, or joint venture. The Plumber retains full control over the methods, tools, scheduling, and means by which the Work is performed, consistent with the principles established in 671122 Ontario Ltd. v. Sagaz Industries Canada Inc. (2001 SCC 59). The Plumber is solely responsible for their own taxes, including income tax, CPP contributions, and EI premiums.
Cancellation and Termination
The Client may cancel a scheduled service upon [Termination Notice Days] days' prior written notice. Cancellation without adequate notice shall result in a cancellation fee of CAD $[Cancellation Fee]. Either Party may terminate this Agreement immediately if the other Party materially breaches its obligations and fails to cure such breach within seven (7) days of receiving written notice.
Upon termination, the Client shall pay the Plumber for all Work satisfactorily completed and materials provided up to the date of termination. The Plumber shall ensure that any partially completed Work is left in a safe condition, with water supply and drainage systems functional. If the Work requires a building permit, the Plumber shall cooperate with the Client in arranging any required inspection of the incomplete Work.
Notices
Any notice required under this Agreement shall be in writing and delivered personally, by registered mail, or by email. Notices by email shall be deemed received on the date sent.
Client email: [Client Email]. Plumber email: [Plumber Email]. Plumber phone: [Plumber Phone].
Governing Law
This Agreement shall be governed by and construed in accordance with the federal laws of Canada and the laws of the Province of [Province], including the applicable Building Code Act, Skilled Trades Act, and Consumer Protection Act. Any disputes arising from or related to this Agreement that cannot be resolved by good-faith negotiation shall be submitted to the exclusive jurisdiction of the courts of the Province of [Province].
Entire Agreement
This Agreement constitutes the entire understanding between the Parties concerning the subject matter hereof and supersedes all prior and contemporaneous agreements, representations, and understandings, whether oral or written. No amendment or modification of this Agreement shall be valid unless made in writing and signed by both Parties.
Severability
If any provision of this Agreement is found to be invalid or unenforceable by a court of competent jurisdiction, the remaining provisions shall continue in full force and effect.
Signatures
IN WITNESS WHEREOF, the Parties have executed this Agreement as of the Effective Date.
Client
________________
Signature
Date: ________________
Plumber
________________
Signature
Date: ________________
What Is a Plumbing Service Contract (Canada)?
A Plumbing Service Contract in Canada sets the scope of services, fees, and performance and liability terms binding provider and client, governed primarily by common-law contract principles and provincial consumer-protection law.
In Ontario, plumbing (Trade Code 306A) is regulated under the Building Opportunities in the Skilled Trades Act, 2021, administered by Skilled Trades Ontario (formerly the Ontario College of Trades). In British Columbia, the Industry Training Authority oversees Red Seal plumbing certification. In Alberta, the Apprenticeship and Industry Training Act (R.S.A. 2000, c. A-42) governs plumbing certification. In Quebec, plumbing is regulated by the Régie du bâtiment du Québec under the Building Act (CQLR, c. B-1.1), and contractors must hold a specialized licence.
The legal consequences of hiring an uncertified plumber are serious. The property owner may face denied insurance claims, building code violations, mandatory demolition and re-installation at their own expense, and liability for any resulting water damage or health hazards. This contract confirms that certification, permits, insurance, and WSIB/WCB coverage are verified before work begins.
The legal framework governing the Plumbing Service Contract (Canada) in Canada draws on several key statutes and regulatory bodies. Under the Canada Business Corporations Act (R.S.C. 1985, c. C-44), Corporations Canada maintains the federal registry. Section 12 of the CBCA governs corporate name requirements. The Competition Bureau enforces the Competition Act (R.S.C. 1985, c. C-34). Provincial securities commissions — including the Ontario Securities Commission (OSC) and British Columbia Securities Commission (BCSC) — regulate capital markets. The Federal Court of Canada has jurisdiction under the Federal Courts Act. Parties executing a Plumbing Service Contract (Canada) in Canada should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Common law of contract + provincial consumer-protection law sets the foundational requirements.
When Do You Need a Plumbing Service Contract (Canada)?
A Canadian Plumbing Service Contract is required whenever a homeowner, landlord, property manager, commercial tenant, or building owner engages a plumber for any work beyond the most minor repairs. Even replacing a faucet — which technically does not require a permit — benefits from a written agreement specifying the cost, materials, timeline, and warranty.
The contract becomes legally essential for work that requires a building permit under the Ontario Building Code (O. Reg. 332/12) or the applicable provincial building code. This includes installing new plumbing systems, relocating existing fixtures, connecting to the municipal water or sewer system, installing water heaters, adding new fixtures (sinks, toilets, showers, laundry connections), and installing or modifying backflow prevention devices.
Landlords performing plumbing repairs in rental units must comply with the Residential Tenancies Act, 2006 (Ontario) regarding notice of entry (24 hours minimum under s. 27), the tenant's right to quiet enjoyment, and the landlord's maintenance obligation under s. 20. Property management companies that engage plumbing contractors for ongoing maintenance across multiple properties need contracts that clearly establish the independent contractor relationship to satisfy the CRA four-fold test.
Commercial properties, restaurants, and healthcare facilities have additional regulatory requirements — including backflow prevention testing (required annually under most municipal bylaws), grease trap maintenance, and compliance with provincial health and safety regulations.
Parties in Canada should prepare a Plumbing Service Contract (Canada) proactively rather than waiting for a dispute to arise. Courts interpret agreements based on the written terms rather than oral representations. Under the Canada Business Corporations Act (R.S.C. 1985, c. C-44), Corporations Canada maintains the federal registry. Section 12 of the CBCA governs corporate name requirements. The Competition Bureau enforces the Competition Act (R.S.C. 1985, c. C-34). Provincial securities commissions — including the Ontario Securities Commission (OSC) and British Columbia Securities Commission (BCSC) — regulate capital markets. The Federal Court of Canada has jurisdiction under the Federal Courts Act. Where the transaction involves regulated activities, prior approval from the relevant authority may be required before execution.
What to Include in Your Plumbing Service Contract (Canada)
A thorough Canadian Plumbing Service Contract must begin with the plumber's certification credentials — the Certificate of Qualification number, the issuing authority (Skilled Trades Ontario, ITA, Alberta AIT, or RBQ), and the Red Seal endorsement if applicable. The contract should also require proof of current registration and good standing.
The scope of work must be specific and detailed. List every fixture, pipe run, valve, and connection to be installed, repaired, or replaced. Specify the materials and brands to be used (copper, PEX, ABS, PVC), the grade and rating of materials, and whether the client or plumber supplies them. For renovation work, specify demolition and disposal responsibilities.
Building permit obligations must be clearly assigned. The contract should state who applies for the permit, who pays for it, and who schedules and attends municipal inspections. The plumber should guarantee that all work will comply with the Ontario Building Code (or applicable provincial code) and will pass inspection.
Insurance and WSIB/WCB coverage are critical. Require a minimum of $2 million in commercial general liability insurance and a valid WSIB clearance certificate (or provincial equivalent). Pricing should be in Canadian dollars — fixed price, hourly rate (with a not-to-exceed cap), or time and materials — with GST/HST clearly broken out. Include a change order process requiring written authorization before any additional work begins. The workmanship warranty should be at least one year, with manufacturer warranties on materials passing through to the property owner.
Additional compliance elements for a Plumbing Service Contract (Canada) used in Canada include: Under the Canada Business Corporations Act (R.S.C. 1985, c. C-44), Corporations Canada maintains the federal registry. Section 12 of the CBCA governs corporate name requirements. The Competition Bureau enforces the Competition Act (R.S.C. 1985, c. C-34). Provincial securities commissions — including the Ontario Securities Commission (OSC) and British Columbia Securities Commission (BCSC) — regulate capital markets. The Federal Court of Canada has jurisdiction under the Federal Courts Act. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
Sources & Citations
Statutory citations link to official government sources.
- R.S.C. 1985, c. C-44CA official
- R.S.C. 1985, c. C-34CA official
Cite this page
Reference this free template in an article, syllabus, or research note:
Forms Legal. (2026). Plumbing Service Contract (Canada) (Canada) [Legal document template]. Forms Legal. https://forms-legal.com/canada/business/services/plumbing-service-contract-canada
"Plumbing Service Contract (Canada) (Canada)." Forms Legal, 2026, https://forms-legal.com/canada/business/services/plumbing-service-contract-canada.
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title = {Plumbing Service Contract (Canada) (Canada)},
year = {2026},
howpublished = {\url{https://forms-legal.com/canada/business/services/plumbing-service-contract-canada}},
note = {Free legal document template. Based on Common law of contract + provincial consumer-protection law}
}Also available for these jurisdictions:
Frequently Asked Questions
Yes. Plumbing is designated as a compulsory trade in every Canadian province. In Ontario, under the Building Opportunities in the Skilled Trades Act, 2021 (formerly the Ontario College of Trades and Apprenticeship Act, 2009), plumbing (Code 306A) is a compulsory trade requiring a Certificate of Qualification (C of Q) from Skilled Trades Ontario. In British Columbia, the Industry Training Authority administers Red Seal certification. In Alberta, plumbing is regulated under the Apprenticeship and Industry Training Act (R.S.A. 2000, c. A-42). Anyone performing plumbing work without proper certification is committing an offence and may face fines up to $10,000 per occurrence. Under Canada law, Common law of contract + provincial consumer-protection law, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under the Canada Business Corporations Act (R.S.C. 1985, c. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
Under the Ontario Building Code (O. Reg. 332/12), a building permit is required for any plumbing work that involves installing new plumbing systems, relocating existing fixtures, connecting to the municipal water or sewer system, or installing backflow prevention devices on commercial properties. Minor repairs — replacing a faucet, fixing a running toilet, clearing a drain — generally do not require a permit. However, replacing a water heater or adding a new fixture (e.g., a sink, toilet, or shower) typically requires a permit and inspection. The plumber is responsible for pulling the permit and scheduling inspections unless the contract explicitly states otherwise. Under Canada law, Common law of contract + provincial consumer-protection law, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under the Canada Business Corporations Act (R.S.C. 1985, c. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
In Ontario, plumbing is classified under Construction (NAICS 238220) and is a mandatory industry under the Workplace Safety and Insurance Act, 1997 (WSIA). All plumbing contractors with employees must register with WSIB and maintain active coverage. Independent sole proprietors without employees may apply for optional coverage but must provide a valid WSIB clearance certificate to clients. Hiring parties who engage a plumbing contractor without valid WSIB coverage may be held liable as the deemed employer under s. 141.2 of the WSIA. Similar requirements exist under WorkSafeBC in British Columbia and the Workers' Compensation Act in Alberta. Under Canada law, Common law of contract + provincial consumer-protection law, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under the Canada Business Corporations Act (R.S.C. 1985, c. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
A Canadian plumbing contract should include a workmanship warranty (typically one year for residential work), a materials warranty (which passes through the manufacturer's warranty), and compliance with the Ontario Building Code or the applicable provincial building code. In Ontario, the Consumer Protection Act, 2002 implies a warranty of quality and fitness for purpose in consumer contracts. For new construction and major renovations, the Tarion Warranty Corporation provides 1-year, 2-year, and 7-year warranties under the Ontario New Home Warranties Plan Act. The plumber should also guarantee that all work will pass municipal inspection. Under Canada law, Common law of contract + provincial consumer-protection law, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under the Canada Business Corporations Act (R.S.C. 1985, c. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
Plumbing services are taxable supplies under the Excise Tax Act (R.S.C. 1985, c. E-15). If the plumber's gross annual revenue exceeds $30,000, they must register for GST/HST and charge the applicable rate: 5% GST in Alberta, British Columbia, Manitoba, and Saskatchewan; 13% HST in Ontario; 15% HST in Nova Scotia, New Brunswick, Newfoundland and Labrador, and Prince Edward Island. In Quebec, the plumber charges 5% GST plus 9.975% QST. The contract should clearly state whether the quoted price includes or excludes GST/HST, display the plumber's GST/HST registration number, and break out the tax on invoices. Under Canada law, Common law of contract + provincial consumer-protection law, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under the Canada Business Corporations Act (R.S.C. 1985, c. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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