General Contractor Agreement (Canada)
What Is a General Contractor Agreement (Canada)?
A General Contractor Agreement in Canada engages a general contractor for construction work and sets the scope, price, and schedule, governed primarily by provincial construction and lien legislation.
Canadian construction law is heavily regulated at the provincial level. Each province has its own construction lien legislation — Ontario's Construction Act (formerly the Construction Lien Act), British Columbia's Builders Lien Act, and Alberta's Prompt Payment and Construction Lien Act — that imposes mandatory holdback requirements, typically 10% of each progress payment. These statutory holdbacks exist to protect subcontractors and material suppliers, and property owners who fail to retain them can face lien claims even after paying the general contractor in full.
Beyond lien legislation, the agreement must address workplace safety insurance. In Ontario, the Workplace Safety and Insurance Act requires all construction employers to carry WSIB coverage. British Columbia mandates WorkSafeBC registration, while Alberta requires WCB coverage. A properly drafted agreement requires the contractor to provide proof of active coverage before work begins, shielding the owner from vicarious liability for workplace injuries.
The General Contractor Agreement (Canada) also establishes whether the contractor relationship is fixed-price, cost-plus, or time-and-materials, each carrying different risk profiles under Canadian contract law. Section 22 of Ontario's Construction Act (S.O. 2017, c. 24) mandates the 10% statutory holdback from each progress payment; Section 31 of BC's Builders Lien Act (S.B.C. 1997, c. 45) imposes a 10% holdback requirement; Section 18 of Alberta's Prompt Payment and Construction Lien Act (S.A. 2018, c. P-26.4) governs holdback in Alberta. Part I.1 of Ontario's Construction Act introduced mandatory prompt payment: Section 6.2 requires owners to pay within 28 days of a proper invoice and Section 6.4 requires contractors to pay subcontractors within 7 days of receiving payment. Part II.1 of Ontario's Construction Act provides statutory adjudication for disputed invoices without stopping construction work. Section 14 of Ontario's Workplace Safety and Insurance Act (S.O. 1997, c. 16) governs WSIB obligations for construction employers; Section 10 of BC's Workers Compensation Act (R.S.B.C. 2019, c. 1) governs WorkSafeBC registration; Section 89 of Alberta's Workers' Compensation Act (R.S.A. 2000, c. W-15) governs WCB requirements. Section 25 of Ontario's Occupational Health and Safety Act (R.S.O. 1990, c. O.1) imposes duties on constructors at project sites, while Section 26 governs owner obligations. Under the National Building Code of Canada (NBC), construction must meet minimum structural, fire, and safety standards enforced by municipal building permit authorities. The Personal Information Protection and Electronic Documents Act (PIPEDA, S.C. 2000, c. 5), enforced by the Office of the Privacy Commissioner of Canada (OPC), governs any personal information collected from workers or subcontractors during the project. Disputes are adjudicated before the Ontario Superior Court of Justice, Alberta Court of King's Bench, and British Columbia Supreme Court. Forms-legal.com provides this General Contractor Agreement (Canada) template covering statutory holdback, WSIB obligations, prompt payment, and lien protection requirements under applicable provincial construction legislation.
When Do You Need a General Contractor Agreement (Canada)?
When hiring a general contractor for a home renovation exceeding $10,000, where multiple trades (electrical, plumbing, framing) will be coordinated under one project manager.
When building a new residential or commercial structure that requires municipal building permits, inspections, and compliance with the National Building Code of Canada.
When a property owner needs to formalize the contractor's obligation to carry WSIB/WCB coverage, provide certificates of insurance, and maintain workplace safety standards under provincial occupational health legislation.
When the project involves subcontractors, and the owner needs contractual assurance that the general contractor will manage statutory holdback obligations under provincial construction lien acts and pay subcontractors on time.
When converting or renovating a commercial space where the lease requires landlord approval and the contractor must comply with specific building standards or restoration obligations.
Skipping a written general contractor agreement exposes the property owner to uncontrolled costs, lien claims from unpaid subcontractors, liability for workplace injuries, and the absence of any enforceable warranty on completed work. Section 22 of Ontario's Construction Act imposes holdback obligations on owners; failure to comply exposes the owner to lien liability even after paying the contractor in full. Section 14 of Ontario's Workplace Safety and Insurance Act (S.O. 1997, c. 16) can hold owners jointly liable for uninsured contractor workers' compensation claims. Section 8 of British Columbia's Builders Lien Act (S.B.C. 1997, c. 45) and Section 18 of Alberta's Prompt Payment and Construction Lien Act (S.A. 2018, c. P-26.4) impose equivalent holdback obligations in those provinces. Section 25 of Ontario's Occupational Health and Safety Act (R.S.O. 1990, c. O.1) requires the constructor to take every precaution reasonable in the circumstances for worker protection. Without a written contract specifying the contractor's constructor status, owners risk being deemed the constructor under Section 1 of the OHSA and assuming full constructor liability. Part I.1 of Ontario's Construction Act introduced prompt payment: Section 6.2 requires owners to pay proper invoices within 28 days; Section 6.4 requires contractors to pay subcontractors within 7 days of receiving payment. Tarion Warranty Corporation in Ontario administers new home warranty obligations under the Ontario New Home Warranties Plan Act (R.S.O. 1990, c. O.31). Disputes are adjudicated before the Ontario Superior Court of Justice, Alberta Court of King's Bench, or British Columbia Supreme Court, or through statutory adjudication under Part II.1 of Ontario's Construction Act for payment disputes.
What to Include in Your General Contractor Agreement (Canada)
Scope of Work and Specifications — A detailed description of all work to be performed, materials to be used, and applicable building codes. Vague scope descriptions are the leading cause of construction disputes in Canadian courts.
Payment Schedule and Statutory Holdback — Progress payment milestones tied to completion stages, with the mandatory provincial holdback (10% in Ontario under Construction Act s. 22, 10% in BC under Builders Lien Act s. 4) clearly identified and held until the lien period expires.
Change Order Procedures — A formal process requiring written approval before any changes to scope, timeline, or cost. Without this, contractors may claim additional compensation for work the owner considered included in the original price.
Insurance and WSIB/WCB Requirements — The contractor must maintain thorough general liability insurance (typically $2 million minimum) and provide a valid WSIB/WCB clearance certificate. Owners who fail to verify coverage may be held personally liable.
Project Timeline and Delay Penalties — Start date, milestone dates, and substantial completion date, with liquidated damages for unjustified delays. Force majeure provisions should address weather, supply chain disruptions, and government-ordered shutdowns.
Warranty and Deficiency Provisions — A minimum one-year warranty on workmanship with a clear deficiency correction process. Provincial new home warranty programs (Tarion in Ontario, BC Housing's 2-5-10 warranty) may impose additional obligations.
Dispute Resolution — Specify mediation or arbitration before litigation, which is standard practice in Canadian construction contracts and can save tens of thousands in legal fees.
Termination Clauses — Conditions under which either party may terminate, including contractor default, owner insolvency, or mutual agreement, with procedures for paying for completed work and returning materials. Section 22 of Ontario's Construction Act (S.O. 2017, c. 24) governs statutory holdback obligations; Section 31 of BC's Builders Lien Act (S.B.C. 1997, c. 45) and Section 18 of Alberta's Prompt Payment and Construction Lien Act (S.A. 2018, c. P-26.4) impose equivalent requirements. Section 14 of Ontario's Workplace Safety and Insurance Act (S.O. 1997, c. 16) governs WSIB obligations for construction employers; Section 25 of Ontario's Occupational Health and Safety Act (R.S.O. 1990, c. O.1) sets constructor duties. Section 5 of PIPEDA (S.C. 2000, c. 5), enforced by the Office of the Privacy Commissioner of Canada (OPC), governs any personal information collected during the project. Part II.1 of Ontario's Construction Act provides statutory adjudication for construction payment disputes, with adjudicators appointed by the Authorized Nominating Authority and decisions issued within 30 days.
Governing Law and Dispute Resolution — The agreement should specify the province whose law governs the contract and the dispute resolution mechanism: mediation, followed by arbitration under the applicable provincial Arbitration Act, or litigation before the provincial superior court. For federal government projects, the Federal Courts Act (R.S.C. 1985, c. F-7) may confer jurisdiction on the Federal Court of Canada. Where the project is a public procurement, the Canadian Free Trade Agreement (CFTA) and the Agreement on Government Procurement may impose additional competitive bidding requirements. The Income Tax Act (R.S.C., 1985, c. 1 (5th Supp.)) governs the tax treatment of construction payments, and the Canada Revenue Agency (CRA) may require GST/HST to be charged on construction services under Section 240 of the Excise Tax Act (R.S.C., 1985, c. E-15). Section 12 of the Canada Business Corporations Act (R.S.C. 1985, c. C-44) governs corporate name requirements for incorporated contractors. Forms-legal.com provides this General Contractor Agreement (Canada) template covering statutory holdback, WSIB/WCB insurance, construction lien protections, and prompt payment requirements across Canadian provinces.
Sources & Citations
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Frequently Asked Questions
Provincial construction lien legislation requires property owners to withhold a percentage of each progress payment as a fund to protect subcontractors and material suppliers in the event the general contractor fails to pay them. In Ontario, Section 22 of the Construction Act (S.O. 2017, c. 24) mandates a 10% statutory holdback from every progress payment to the general contractor. The owner must retain these funds until the lien period expires — 60 days from the date of publication of a certificate of substantial performance, or 60 days from the date the contract is completed, abandoned, or terminated if no certificate is published. In British Columbia, Section 4 of the Builders Lien Act (S.B.C. 1997, c. 45) requires a 10% holdback from each payment, with the lien period running 55 days from the issuance of a certificate of completion. In Alberta, Section 18 of the Prompt Payment and Construction Lien Act (S.A. 2018, c. P-26.4) requires a 10% holdback on each payment, released 45 days after the last date work was performed or materials furnished. In Manitoba, Section 18 of the Builders' Liens Act (C.C.S.M. c. B91) requires a 7.5% holdback. The holdback amounts to a statutory trust fund: the Ontario Court of Appeal has confirmed that owners who release holdback prematurely may be personally liable to lien claimants even if they have already paid the general contractor in full. Both the owner and the general contractor should track holdback amounts carefully on a per-contract basis, as the holdback obligation applies to each separate subcontract.
Yes. Workers’ compensation coverage is mandatory for general contractors in all Canadian provinces, and property owners who hire uninsured contractors can face personal liability for workplace injuries. In Ontario, Section 12 of the Workplace Safety and Insurance Act (S.O. 1997, c. 16) requires all construction businesses to register with the Workplace Safety and Insurance Board (WSIB); Section 14 makes a property owner jointly liable for WSIB premiums if the contractor has not registered. In British Columbia, Section 10 of the Workers Compensation Act (R.S.B.C. 2019, c. 1) requires registration with WorkSafeBC; clearance letters confirm no outstanding assessments exist. In Alberta, Section 89 of the Workers’ Compensation Act (R.S.A. 2000, c. W-15) requires WCB registration; owners who fail to verify coverage may be liable for unpaid WCB premiums. In Quebec, the CNESST administers workers’ compensation under the Act Respecting Occupational Health and Safety (CQLR, c. S-2.1). The general contractor agreement should require the contractor to provide a valid WSIB/WCB/WorkSafeBC clearance certificate dated within 30 days before work begins, and to maintain coverage throughout the project. The owner should be named as an additional insured on the contractor’s commercial general liability policy — typically $2 million per occurrence for residential projects and $5 million for commercial projects.
Yes. Under provincial construction lien legislation, subcontractors and material suppliers who are unpaid can register a lien against the property where the work was performed. Section 14 of Ontario’s Construction Act (S.O. 2017, c. 24) grants every person who supplies services or materials to an improvement the right to a lien on the interest of the property owner in the land. Section 20 of the Builders Lien Act (S.B.C. 1997, c. 45) grants equivalent rights in British Columbia; Section 14 of Alberta’s Prompt Payment and Construction Lien Act (S.A. 2018, c. P-26.4) does so in Alberta. The lien must be preserved by registering it against title within the lien period: 60 days from publication of substantial performance in Ontario, 55 days from a certificate of completion in BC, and 45 days from the last supply of work or materials in Alberta. A registered construction lien can block the sale or refinancing of the property until it is removed through payment, security, or a court order obtained from the Ontario Superior Court of Justice, BC Supreme Court, or Alberta Court of King’s Bench. The statutory holdback required under Section 22 of Ontario’s Construction Act and equivalent provincial provisions exists precisely to protect the owner: if holdback has been properly maintained, the owner can satisfy lien claims from the holdback fund without paying twice. General contractors should include lien holdback provisions in their subcontracts and can use a Subcontractor Agreement to flow down these obligations.
Several Canadian provinces have enacted prompt payment legislation requiring owners and contractors to pay within defined timelines. In Ontario, Part I.1 of the Construction Act (S.O. 2017, c. 24) requires owners to pay within 28 days of a proper invoice; contractors must pay subcontractors within 7 days of receiving payment. If the owner disputes the invoice, they must serve a notice of non-payment within 14 days under Section 6.4 of the Construction Act. In Alberta, Part 2 of the Prompt Payment and Construction Lien Act (S.A. 2018, c. P-26.4) imposes the same 28-day and 7-day timelines. British Columbia’s Builders Lien Act does not yet contain equivalent prompt payment provisions. The adjudication process under Part II.1 of Ontario’s Construction Act and Part 3 of Alberta’s Prompt Payment and Construction Lien Act allows parties to obtain binding interim decisions within approximately 30 days without stopping work. Adjudicators are appointed by the designated Nominating Authority — the Ontario Infrastructure and Lands Corporation in Ontario. General contractor agreements should reference the applicable prompt payment provisions, include the required invoice format, and set out the notice of non-payment procedure for compliance with Section 6.5 of Ontario’s Construction Act.
A general contractor in Canada should maintain several categories of insurance. Commercial General Liability (CGL) insurance covers third-party bodily injury and property damage; residential projects typically require $2 million per occurrence, while commercial projects require $5 million. Builder’s Risk (Course of Construction) insurance covers physical damage to the project — structure, materials, and temporary works — from fire, theft, vandalism, and weather; taken out for the full replacement value. WSIB/WCB coverage is mandatory under provincial workers’ compensation legislation: Section 12 of Ontario’s Workplace Safety and Insurance Act (S.O. 1997, c. 16) requires all construction employers to register with WSIB; Section 10 of BC’s Workers Compensation Act (R.S.B.C. 2019, c. 1) requires WorkSafeBC registration; Section 89 of Alberta’s Workers’ Compensation Act (R.S.A. 2000, c. W-15) requires WCB registration. Professional Liability (Errors and Omissions) insurance is required where the contractor provides design-build services. Commercial Auto insurance covers project vehicles. The owner should be named as an additional insured on the CGL policy and receive certificates of insurance before work begins. General contractor agreements should specify minimum coverage amounts, require 30 days’ written notice of cancellation, and confirm annual certificate renewal for multi-year projects.
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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