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A General Construction Contract is a bilateral contract between an Owner and a general / prime Contractor for the performance of construction work on a single project. Our free Canadian template is aware of Ontario's Construction Act as amended by Bill 216 and Bill 60 (in force 1 January 2026), Alberta's Prompt Payment and Construction Lien Act (in force 29 August 2022), British Columbia's Builders Lien Act, and Saskatchewan's Builders' Lien Act + Prompt Payment Construction Act. Built so that the contract is enforceable in every common-law province and addresses the high-stakes statutory traps — statutory holdback, lien preservation, prompt payment, change-order discipline, warranty, insurance and adjudication.
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A General Construction Contract is a written contract between the Owner (who commissions the work) and the general or prime Contractor (who performs and coordinates the work) for the performance of construction work on a single defined project. It records the scope of work, the contract sum, the time of performance, the payment schedule, and the statutory protections that apply under the construction-lien legislation of the project's province.
Every Canadian common-law province has a construction-lien statute that imposes a mandatory statutory holdback (typically 10 percent; 7.5% in Manitoba; 20% in New Brunswick and PEI) and a strict lien-preservation period (60 days in Ontario, Alberta, Nova Scotia, New Brunswick, PEI; 45 days in BC; 40 days in Saskatchewan and Manitoba; 30 days in Newfoundland and Labrador). Missing the lien-preservation period irrevocably extinguishes the lien claim — the unpaid party becomes an ordinary unsecured creditor with no priority against the Project.
Ontario, Alberta and Saskatchewan now operate a statutory prompt-payment scheme in addition to the lien regime. The Owner has 28 days to pay a "proper invoice" (or to deliver a written notice of non-payment within 14 days); the Contractor must pay each subcontractor the proportionate amount within 7 days. Failure to comply attracts statutory interest and an entitlement to interim adjudication by an Ontario Dispute Adjudication for Construction Contracts (ODACC) adjudicator or a private adjudicator. Effective 1 January 2026, Ontario added a new annual holdback release procedure (notice within 14 days of each contract anniversary, 60-day wait, 14-day release) for projects spanning more than one year.
Our General Construction Contract template covers every element a Canadian construction lawyer would expect.
Legal names, registered addresses, contractor licence / WSIB / WorkSafeBC / WCB-Alberta account, designated project contacts and emails.
Project name, site address, province, contract date, construction start date and substantial performance target date.
Detailed scope description that determines change-order entitlement.
Total price, currency, inclusive vs exclusive of taxes, applicable rate.
Monthly progress draws, milestone-based, fixed draw schedule, or lump-sum-on-completion (small projects).
Province-aware holdback percentage; Ontario 2026 annual-release procedure for projects > 1 year.
ON / AB / SK statutory prompt-payment scheme: 28-day owner-to-GC; 7-day GC-to-sub; proper-invoice rules; notice of non-payment within 14 days.
Province-aware strict statutory window (ON 60 days / AB 60-90 days / BC 45 days / SK 40 days) with express Party acknowledgment.
Written change-order requirement with threshold; 12-24 month workmanship warranty; commercial general liability ($2-5M) + builders risk + WSIB / WorkSafeBC / WCB-Alberta.
Interim adjudication available in ON / AB / SK for prompt-payment, holdback, change-order and subcontract disputes.
Follow these steps to prepare a contract that is enforceable and that protects both Owner and Contractor against the typical construction-lien and prompt-payment traps.
Each province has its own construction-lien statute with different holdback percentages, lien-preservation timelines and prompt-payment availability. The Expert tier auto-applies the correct province-specific timelines once the province is selected.
The scope description determines change-order entitlement. Vague scope = expensive scope-creep dispute. Use specific, measurable scope items, one per line.
Be explicit about GST / HST / PST — inclusive vs exclusive. Most commercial contracts are exclusive (taxes added at invoice), most consumer renovations are inclusive (single all-in price).
Monthly progress draws against certified percentage of work-in-place is the standard for projects > $100k. Milestone-based for fixed-deliverable projects. Lump-sum-on-completion only for small projects (< $25k) where the Contractor can absorb the financing.
Province-aware: 10% in ON/AB/BC/SK/NS/NL; 7.5% in MB; 20% in NB/PEI. For Ontario projects > 1 year, add the new 2026 annual-release procedure (14-day notice, 60-day wait, 14-day release).
Statutory 28-day owner-to-GC + 7-day GC-to-sub. Default values for those provinces; not applicable to BC, MB, NS, NB, NL or PEI.
Express Party acknowledgment that the strict 60-day (or 45 / 40 / 30) lien-preservation window cannot be extended by agreement. Contractor undertakes to track the deadline for every subcontractor.
Change orders (written, with threshold for verbal authorisation), warranty (12-24 months), insurance ($2M CGL minimum, builders risk, provincial workers' comp), adjudication (ON/AB/SK).
Four things that make our templates more thorough than AI-generated drafts and more current than static template libraries.
Drafted with legal expertise for each jurisdiction, far more thorough than AI-generated drafts that copy generic clauses across borders.
Templates carrying statute references are continuously updated as the law changes. Your document always reflects the current legal framework.
Free to download. Vector text, embedded fonts, statute citations baked in. Print, sign, file. Ready for any signing flow including electronic signature.
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Construction contracts are governed by an overlay of provincial construction-lien legislation, prompt-payment legislation, common-law contract principles and the applicable provincial building code.
This template is for informational purposes only and does not constitute legal advice. Construction contracts carry significant lien, prompt-payment, holdback and warranty consequences. Consult a qualified Canadian construction lawyer for advice specific to your project, particularly where the project involves public infrastructure, mining, energy or any matter that engages the OPP, federal Crown corporations or where the contract sum exceeds $1 million.
Reviewed for Canadian common-law-province requirements
The Ontario Construction Act, R.S.O. 1990, c. C.30, was substantially amended by the Construction Statute Law Amendment Act, 2024, S.O. 2024, c. 27 (Bill 216), and by Bill 60. The amendments came into force on 1 January 2026. The key changes are: (a) annual holdback release for projects spanning more than one year (notice within 14 days of each contract anniversary, 60-day wait, 14-day release); (b) prompt-payment improvements including redefined "proper invoice" and the option of private adjudicators alongside the ODACC roster; (c) prospective application to contracts entered into on or after 1 January 2026 (for older contracts, annual release begins on the second anniversary after 1 January 2026).
On 29 August 2022, the Prompt Payment and Construction Lien Act, R.S.A. 2000, c. P-26.4 ("PPCLA") replaced the previous Builders' Lien Act. The PPCLA maintains the 10 percent statutory holdback but extends the lien-preservation deadline from 45 days to 60 days for general work and to 90 days for work related to concrete (to reflect the time required for concrete to cure). The PPCLA adds a prompt-payment scheme similar to Ontario: 28-day owner-to-GC, 7-day GC-to-sub, statutory notice of non-payment, interim adjudication.
The Builders Lien Act, S.B.C. 1997, c. 45, imposes a 10 percent statutory holdback and a strict 45-day lien-preservation period from the date of substantial performance, completion or last supply of services or materials. BC does not (as at the date of this template) operate a prompt-payment scheme — payment timelines and dispute mechanisms are governed by the negotiated contract terms.
Saskatchewan operates a dual regime: The Builders' Lien Act, S.S. 1984-85-86, c. B-7.1 (10 percent statutory holdback, 40-day lien preservation) is supplemented by The Prompt Payment Construction Act, S.S. 2024, c. 22 (in force 1 March 2024), which imports a prompt-payment scheme materially identical to Ontario's (28-day owner-to-GC, 7-day GC-to-sub, adjudication).
Manitoba — The Builders' Liens Act, C.C.S.M. c. B91: 7.5 percent holdback, 40-day lien. Nova Scotia — Builders' Lien Act, R.S.N.S. 1989, c. 277: 10 percent holdback, 60-day lien. New Brunswick — Mechanics' Lien Act, R.S.N.B. 1973, c. M-6: 20 percent holdback, 60-day lien. Newfoundland and Labrador — Mechanics' Lien Act, R.S.N.L. 1990, c. M-3: 10 percent holdback, 30-day lien. PEI — Mechanics' Lien Act, R.S.P.E.I. 1988, c. M-4: 20 percent holdback, 60-day lien. None of these provinces yet operate a prompt-payment scheme.
Every province requires construction contractors to maintain provincial workers' compensation coverage. Ontario: WSIB (Workplace Safety and Insurance Board) under the Workplace Safety and Insurance Act, 1997. BC: WorkSafeBC under the Workers Compensation Act, R.S.B.C. 2019, c. 1. Alberta: WCB-Alberta under the Workers' Compensation Act, R.S.A. 2000, c. W-15. Coverage status must be verifiable by a Clearance Certificate before any payment is released; failure to maintain coverage exposes the Owner to liability for the Contractor's claims.
For residential construction, the contractor warranty in this contract is layered over the mandatory provincial new-home warranty: Tarion Warranty Corporation in Ontario (under the Ontario New Home Warranties Plan Act); Travelers Canada or National Home Warranty in BC (Homeowner Protection Office); New Home Buyer Protection in Alberta (NHBPA registry, mandatory under the New Home Buyer Protection Act, S.A. 2012, c. N-3.2). Commercial construction is not subject to a statutory new-home warranty regime.
Quebec is governed by a separate civil-law construction regime under the Civil Code of Québec (articles 2118-2129 prestation de services et entreprise) and the Loi sur les architectes. A Quebec-specific template will follow in a future sprint.
Build a province-aware, prompt-payment-compliant General Construction Contract in minutes. The Free version produces a working bilateral contract (parties, project scope, contract sum, payment schedule, completion date, signatures). Upgrade to Expert to add the statutory holdback clause (with Ontario's new 2026 annual-release procedure), the prompt-payment mechanism (ON / AB / SK), the lien-preservation acknowledgment, written change-order procedure, warranty, insurance requirements and interim adjudication clause that materially exceed bare contract terms and protect against the typical construction-lien and prompt-payment traps.
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