Open Construction Tenders in Ontario — 332 Live Today
Data updated August 10, 2026
Ontario's construction stream is the deepest in the country: over a hundred open opportunities is typical, spanning York Region and Peel road programs, school builds from boards like the District School Board of Niagara, hospital renewal, and the federal work Defence Construction Canada and PSPC tender across the province.
Most municipal work posts to Bids&Tenders and Biddingo, provincial and broader-public-sector projects to MERX and the Ontario Tenders Portal, and federal projects to CanadaBuys — TenderScan folds them into the single list below, with Toronto's own market on its dedicated page.
Latest open tenders
Request for Tenders for Infrastructure Upgrades on Warwick Avenue, on Elderwood Drive, on Hollaman Road, and on Denison Road East.
Engineering & Construction Services
Toronto BidsCloses August 31, 2026Request for Tender for Watermain, Water Service Replacement and Road Rehabilitation Project in the City of Toronto
Engineering & Construction Services
Toronto BidsCloses August 24, 2026The summary of work consists of repairs and upgrades to the existing one-storey washroom building (constructed in 1960), including investigation, assessment,…
Parks, Forestry & Recreation
Toronto BidsCloses September 1, 2026RFT-66-2026 - Construction of the 2025 Pedestrian Crossings, Intersection Pedestrian Signal and All Way Stops
Town of Oakville
Bids&TendersCloses August 24, 2026OCI Tensile Membrane Structure - Construction Manager
Colliers Project Leaders
MERXCloses August 18, 2026131 Queen Office Space Fit-Up and Modernisation
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses August 28, 2026NRFP2026-043 - Construction of Howden Recreation Centre and Library
City of Brampton
Bids&TendersCloses August 21, 2026RFP 2026-16 PW - Consulting Engineering Services for the Detailed Engineering Design of the Winston Road Watermain Replacement
Town of Grimsby
Bids&TendersCloses September 11, 2026Roofing Maintenance and Repair Services
Greater Toronto Airports Authority
MERXCloses September 9, 2026Construction Services for Campground Development within Fitzroy Provincial Park
Government of Ontario
Ontario TendersCloses September 10, 20262026-093-CQ - Colborne Street - Access Road Construction and Watermain Relocation
City of Kawartha Lakes
Bids&TendersCloses August 27, 2026IPS20260806 - RFQ IPS 2026-0806 Material Lab Testing Pond Construction
County of Essex
Bids&TendersCloses August 27, 20262026-T-127 - Materials Testing Services For The Reconstruction Of RR 100 (Casablanca Blvd) Between The RR 39 (North Service Rd) And RR 512 (Livingston Ave) In…
Niagara Region
Bids&TendersCloses September 1, 2026T2026-218 - Rumpel Felt Partial Demolition
Region of Waterloo
Bids&TendersCloses September 3, 2026WS-RFT-26-062 - Main Street Reconstruction from Edward Street to 100m East of Park Drive
Town of Whitchurch-Stouffville
Bids&TendersCloses September 11, 2026
Closing within 7 days(95)
PDP1 TX Replacement
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses August 10, 2026RFQ 202600231 - Washroom Renovations at Ernestown Secondary School
Limestone District School Board
Bids&TendersCloses August 10, 2026T-2026-64 - MARY FIX CES – INTERIOR RENOVATIONS
Dufferin-Peel Catholic District School Board
Bids&TendersCloses August 10, 2026Dam Strengthening & Stormwater Management Pond Rehabilitation
BonfireCloses August 10, 2026P-109-26 - Full Architectural Services for Design and Construction of St. John Henry Newman High School
Toronto Catholic District School Board
Bids&TendersCloses August 10, 2026
More tenders in Ontario
Request for Tenders for Infrastructure Upgrades on Warwick Avenue, on Elderwood Drive, on Hollaman Road, and on Denison Road East.
Engineering & Construction Services
Toronto BidsCloses August 31, 2026Request for Tender for Watermain, Water Service Replacement and Road Rehabilitation Project in the City of Toronto
Engineering & Construction Services
Toronto BidsCloses August 24, 2026The summary of work consists of repairs and upgrades to the existing one-storey washroom building (constructed in 1960), including investigation, assessment,…
Parks, Forestry & Recreation
Toronto BidsCloses September 1, 2026Solicitation of Offers U8210-256631 – CIPO ITM3
Department of Public Works and Government Services (PSPC)
MERXCloses September 10, 2026DEPLOYABLE WEATHER OBSERVATION SYSTEM
Department of National Defence (DND)
MERXCloses August 26, 2026
Most active buyers
- Department of Public Works and Government Services (PSPC)25 open tenders
- Region of Peel12 open tenders
- City of Toronto12 open tenders
- Defence Construction Canada - Ontario Region10 open tenders
- Parks, Forestry & Recreation8 open tenders
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