Open Construction Tenders in Ottawa — 14 Live Today
Data updated September 20, 2026
This page tracks open Construction tenders in Ottawa — live opportunities from the city, its boards and agencies, and other public buyers in the area.
Each listing shows the buyer, the source portal, and the closing date. Counts update as our scrapers sweep each source throughout the day.
Latest open tenders
Edward St. Resurfacing
Corporation of the Town of Prescott
MERXCloses October 1, 2026Capital Labs - RFQ-04B - Masonry - B301, B310, B330
PCL Constructors Canada Inc.
MERXCloses October 8, 2026IWS/IS/DCM/ CP001224 Rothwell Wick Gaines Clancy Watermain Renewal
City of Ottawa
MERXCloses October 7, 2026Wharf Reconstruction - L'Orignal, ON
Department of Fisheries and Oceans (DFO)
MERXCloses October 1, 2026DRAINAGE SYSTEM CLEANOUT GROUP 2 PHASE 2 AT VARIOUS PROPERTIES, OTTAWA, ONTARIO
Ottawa Community Housing
MERXCloses October 2, 20260620-2027-RFP2 Ottawa cubicle construction
Federal Economic Development Agency for Southern Ontario (FedDev Ontario)
MERXCloses October 2, 20260620-2027-RFP2 Ottawa cubicle construction
Federal Economic Development Agency for Southern Ontario (FedDev Ontario)
CanadaBuysCloses October 2, 2026Rubberized Asphalt Roof Replacement Bldg C- CT
PDS-BGIS
MERXCloses September 23, 2026Installation of a Permeable Reactive Barrier at 335 River Road, Ottawa
Department of Public Works and Government Services (PSPC)
CanadaBuysCloses October 1, 202627-006 - General Contractors for Construction of Half Moon Bay Secondary School
Ottawa Carleton District School Board
Bids&TendersCloses September 29, 202625-060-R2 - General Contractors for Renovations
Ottawa Carleton District School Board
Bids&TendersCloses September 23, 2026M50 Building - Canadian Photonics Fabrication Centre (CPFC) and Quantum and Nanotechnology (QN) Semiconductor Facility Project - Construction Management…
National Research Council of Canada (NRC)
MERXCloses September 29, 2026South Campus Watermain Replacement
National Research Council of Canada (NRC)
MERXCloses September 29, 2026Open Construction Source List for Ottawa and Gatineau
Defence Construction Canada - National Capital Region
MERXCloses March 31, 2029
Closing within 7 days(2)
Rubberized Asphalt Roof Replacement Bldg C- CT
PDS-BGIS
MERXCloses September 23, 202625-060-R2 - General Contractors for Renovations
Ottawa Carleton District School Board
Bids&TendersCloses September 23, 2026
More Construction tenders in Ontario
B560 AHU/Class III Generator Construction Project
BonfireCloses September 21, 2026Morrow Lake and Doorely Creek Bridge Replacement
Government of Ontario
Ontario TendersCloses October 19, 20262172 & 2174 Gerrard Street East Renovation
WoodGreen Community Services
BiddingoCloses October 16, 2026Edward St. Resurfacing
Town of Prescott
BiddingoCloses October 1, 2026Construction services for removal of existing asphalt, resurfacing and grading of the first 2.5km of Pelican Falls Road, 700m of Sioux Mountain Road and the…
Government of Ontario
Ontario TendersCloses October 12, 2026
Most active buyers
- Ottawa Carleton District School Board2 open tenders
- National Research Council of Canada (NRC)2 open tenders
- Federal Economic Development Agency for Southern Ontario (FedDev Ontario)2 open tenders
- Defence Construction Canada - National Capital Region1 open tenders
- Department of Public Works and Government Services (PSPC)1 open tenders
Other industries in Ottawa
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