Ontario tenders · General contracting
Open general contracting tenders in Ontario
12 open general contracting construction tenders in Ontario right now, scanned daily from the official procurement portals and tagged by trade.
Updated August 18, 2026.
Open now
12
New in last 30 days
10
Closing soonest
- City of OttawaOttawa, ONCloses Aug 26, 2026via OttawaGeneral ContractorView on official portal →
- Laurentian UniversityNortheast, ONCloses Aug 27, 2026via MERXGeneral ContractorView on official portal →
- City of OttawaOttawa, ONCloses Aug 27, 2026via MERXGeneral ContractorView on official portal →
- Royal Ontario MuseumToronto, ONCloses Aug 31, 2026via MERXGeneral ContractorView on official portal →
- Toronto, ONCloses Sep 3, 2026via City of TorontoGeneral ContractorView on official portal →
RFT 5685636049 — Parks, Forestry & Recreation
17 days leftToronto, ONCloses Sep 3, 2026via City of TorontoMechanicalCarpentryInsulationCladdingGeneral ContractorView on official portal →- Toronto, ONCloses Sep 4, 2026via City of TorontoCivilPavingConcreteStormMechanicalView on official portal →
Carl Pollock Hall 3rd & 4th Floor Renovations
22 days leftUniversity of WaterlooKitchener-Waterloo-Barrie, ONCloses Sep 8, 2026via MERXGeneral ContractorView on official portal →Architectural and Engineering Consulting Services for ENT Clinic Renovation – Charlton Campus
24 days leftSt. Joseph's Healthcare HamiltonHamilton, OntarioCloses Sep 10, 2026via BiddingoGeneral ContractorView on official portal →- Sault College of Applied Arts and TechnologyNortheast, ONCloses Sep 10, 2026via MERXGeneral ContractorView on official portal →
- Ontario Shared ServicesOntarioCloses Oct 1, 2026via MERXDemolition/ClearingGeneral ContractorView on official portal →
General Contractor Services QRT Source List
700 days leftDefence Construction Canada - Ontario RegionKingston-Pembroke, ONCloses Jul 17, 2028via OntarioProcurementGeneral ContractorView on official portal →
Showing the 12 soonest-closing of 12 open general contracting tenders. Start free to see them all, scored to your profile →
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Frequently asked questions
- Where do Ontario general contracting tenders come from?
- Public procurement portals — CanadaBuys, MERX, Biddingo, the Alberta Purchasing Connection, SaskTenders, and municipal sites (BC tenders arrive via MERX and Biddingo). Cornerstone tags each posting by trade, so this page shows the Ontario work tagged general contracting. Each listing links to the official source.
- Is it free to see open general contracting tenders in Ontario?
- Yes — browsing is free and needs no account. A free Cornerstone account scores these tenders to your trade, geography, and bonding capacity, and drafts a compliance-aware proposal for the ones you pursue.
- How is a tender classified as general contracting?
- Cornerstone reads each posting's scope from its title and description and tags the trades involved. This list is the Ontario tenders tagged general contracting; many tenders span several trades, so always confirm the full scope in the official documents.
Listings aggregated from public procurement portals; each links to its official source. Trade tags are Cornerstone’s classification of each posting’s scope — always confirm the full scope in the official tender documents. General information, not procurement advice.