Open Construction Tenders in Ontario — 493 Live Today
Data updated November 6, 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.
Much municipal and broader-public-sector work posts to commercial bidding platforms, provincial projects to the Ontario Tenders Portal, and federal projects to CanadaBuys. TenderScan monitors federal, provincial and municipal tender sources across Canada; every open opportunity is in the single list below, with Toronto's own market on its dedicated page.
Latest open tenders
SQ-26-74 - Mechanical Contractors VOR
Simcoe Muskoka Catholic District School Board
Closes November 24, 2026RFTC-1600-26 - Construction of New Community Housing Development located at 62 Bayview Parkway, Town of Newmarket
York Region
Closes November 30, 2026LCBO Washroom & Breakroom Renovations – LCBO Store 143 Hamilton
Liquor Control Board of Ontario (LCBO)
Closes November 19, 2026LCBO Washroom & Breakroom Renovations – LCBO Store 143 Hamilton
Liquor Control Board of Ontario (LCBO)
Closes November 20, 2026LCBO Washroom & Breakroom Renovations – Store 586 Niagara Falls
Closes November 18, 2026SQ-26-69 - Electrical Contractors VOR
Simcoe Muskoka Catholic District School Board
Closes November 24, 2026OID2026-067 - ENERGY EFFICIENCY RETROFITS & BAS
Town of Georgina
Closes November 30, 2026RFT REC-91-2026 - NFFRC Accessible Entrance
Municipality of Leamington
Closes December 1, 2026T-598-2026 - Trunk sewer inspection program
Region of Durham
Closes December 1, 2026C13-17-26 - Tender for a General Contractor Required for Mount Hope Library Renovations$
City of Hamilton
Closes December 3, 20262026-444T - Flooring Luxury Vinyl Tile (LVT), Parquet Replacement and Repairs Services at Various Peel Living Locations
Region of Peel
Closes November 20, 2026T2026-243 - Region of Waterloo International Airport - Solar Panels (under PQ2026-13)
Region of Waterloo
Closes December 3, 2026Contractor - Improve Space Utilization
BGIS - PWGSC RP1
Closes November 13, 2026PW-2026-09 - Arnprior WPCC Digester Cleanout & Roof Replacement
Town of Arnprior
Closes December 3, 2026IWS/AMS/WRPE Stormwater Retrofit Master Plan - Stage 1
City of Ottawa
Closes November 26, 2026
Closing within 7 days(114)
Welding Shop Refection - 2 sites
Closes November 6, 2026LCBO Auto Door Replacement Roll Out Package 4 - Group A & B- 12 Locations
Liquor Control Board of Ontario (LCBO)
Closes November 6, 2026D2026-18 - Wastewater sanitary sewer pumping station (SSPS) overflow upgrades in the Region of Durham
Region of Durham
Closes November 6, 2026LGC27-034T - Heating Plant Replacement at John Polanyi CI, Bathurst Heights LC TR-25-0053
Toronto District School Board
Closes November 6, 2026D2026-31 - Whitby WSP rehabilitation and Lake Ontario monitoring system installation – Contract 2
Region of Durham
Closes November 6, 2026
More tenders in Ontario
Integrity Commissioner / Closed Meeting Investigation Services
Town of New Tecumseth
Closes November 30, 202626-TWM-36 Furniture for IHSC Lab
Closes December 1, 2026Legal Services for Employee and Labour Relations - Investigation & Restorative and Remediation Services
Government of Ontario
Closes December 7, 2026SQ-26-74 - Mechanical Contractors VOR
Simcoe Muskoka Catholic District School Board
Closes November 24, 2026RFP-2610271 - Property Tax Collection Services
City of Richmond Hill
Closes November 26, 2026
Most active buyers
- Defence Construction Canada - Ontario Region20 open tenders
- Region of Peel18 open tenders
- City of Toronto15 open tenders
- Ontario Shared Services11 open tenders
- Niagara Region11 open tenders
Construction tenders by city in Ontario
Other industries in Ontario
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