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TendersOntarioConstruction
Construction · Ontario · AI-Scored

Construction
Contracts in
Ontario

Ontario's construction and civil works procurement, managed through the Ontario GETS portal, represents a significant portion of the province's CAD $180B+ annual spend, driven by major infrastructure programs like the MTO's highway expansions, transit-oriented communities, and water/wastewater projects. The market is shaped by the Building Ontario Up initiative and the Ontario Infrastructure Plan, with contracts frequently bundled into design-build-finance-maintain (DBFM) or progressive design-build models to accelerate delivery. Key NAICS codes include 236220 (commercial building construction), 237310 (highway/street/bridge), 237110 (water/sewer lines), 237120 (oil/gas pipelines), and 237130 (power/communication lines), reflecting the province's diverse needs from road salt storage facilities to broadband conduit installation.

Find Construction Tenders in ON
State / ProvinceOntario (ON)
IndustryConstruction & Civil Works
Primary PortalOntario GETS
Annual Market$400B+
Key NAICS Codes236220, 237310, 237110
What We Track

Construction tender types in Ontario

road repairbridge constructionbuilding renovationcivil engineeringinfrastructureNAICS 236220NAICS 237310NAICS 237110NAICS 237120NAICS 237130
Why This Market

Why Ontario is a distinct construction market

Ontario's unique geography—from the subarctic climate of Northern Ontario to the dense urban corridor of the GTHA—forces contractors to manage extreme weather windows (May-October for major earthworks) and permafrost challenges in the north, while also navigating Greenbelt and Endangered Species Act constraints in the south. The province's aggressive electric vehicle battery plant investments (e.g., St. Thomas, Windsor) and the Ring of Fire mineral development create massive civil works demands for new road/rail access, water treatment, and power transmission lines that don't exist in other Canadian provinces. Additionally, Ontario's 'Fix the Six' transit expansion (Ontario Line, Scarborough Subway, Eglinton Crosstown West) requires specialized tunneling and station construction expertise that commands premium rates.

How to Win

Tactical advice for this market

Register on Ontario GETS immediately and set up alerts for MTO's capital program notices (often posted as 'Request for Pre-Qualifications' before full RFPs) and Infrastructure Ontario's 'Market Sounding' documents—these early signals let you shape your teaming strategy before competitors. Bid on smaller MTO winter maintenance contracts (e.g., salt dome construction, snow fence installation) to build performance history with the Ministry, then leverage that to qualify for larger bridge rehabilitation or highway expansion projects. For MECP-related work (water/wastewater), demonstrate experience with Ontario's Drinking Water Works Permit process and have a Registered Professional Engineer (Ontario) on staff, as technical submissions require P.Eng. seals on all design documents.

FAQ

Frequently asked questions

What specific bonding or insurance requirements are unique to Ontario construction contracts?
Ontario's Construction Lien Act requires contractors on public projects over CAD $500,000 to post a labour and material payment bond (often 50% of contract value), and MTO mandates a performance bond of 100% of contract value for projects over CAD $1M. You'll also need CAD $5M general liability insurance and CAD $2M automobile liability, plus WSIB clearance certificate—all must be issued by insurers licensed in Ontario.
How do I handle the short construction season in Northern Ontario for road projects?
MTO typically issues 'Northern Ontario Early Start' contracts in February, allowing mobilization in March for tree clearing and gravel placement on frost roads, with a strict completion deadline of November 30 to avoid winter shutdown penalties. Budget for heated aggregate storage, winter concrete additives (calcium chloride), and double-shift crews to maximize the 5-6 month window.
What environmental regulations impact civil works near the Greenbelt or Lake Ontario?
Any excavation within 30 meters of a waterbody requires a Permit to Take Water from MECP, and projects in the Greenbelt must undergo a Natural Heritage Assessment under the Oak Ridges Moraine Conservation Plan. MTO often requires on-site environmental monitors (qualified under Ontario's Environmental Protection Act) during culvert installations or bridge pier construction in sensitive areas.
Are there set-asides or preferences for Indigenous-owned construction firms in Ontario?
Ontario's Indigenous Procurement Program sets a target of 5% of provincial construction spending with Indigenous businesses, and MTO's 'Community Benefits Agreements' for northern projects (e.g., Highway 17 twinning) require prime contractors to subcontract a minimum of 10-15% of work value to Indigenous-owned firms listed on the Canadian Council for Aboriginal Business directory.
Related Search Terms

How people search for this

Ontario MTO highway construction contracts 2025Infrastructure Ontario design build civil works RFQOntario GETS water treatment plant construction bidsNorthern Ontario road building contractor opportunitiesOntario Greenbelt construction environmental complianceMTO bridge rehabilitation prequalification OntarioOntario municipal sewer line replacement contractsOntario Ring of Fire access road procurement

Construction contracts in Ontario,
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