60th Anniversary!
The association began in 1931 under the name of Ottawa Master Plumbers’ Association.
On May 6th, 1966, association was incorporated under the name the Mechanical Contractors Association of Ottawa
In November 1967, Sheet Metal Contractors of Ottawa joined MCA Ottawa.
Our Mission
MCA Ottawa’s mission is to bridge management and labour. We aim to ensure fair negotiations, foster positive union relationships, and support the mechanical trades. We are dedicated to creating a stable and prosperous environment for our members.
Featured News
Save The Dates! Upcoming Events
Upcoming Events Registration & Sponsorship Open September 1st, 2026 Registration & Sponsorship Open October 9th, 2026
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Bob Martel Scholarship Application OPEN!
Robert (Bob) Martel Scholarship Application Applications for the Robert (Bob) Martel Memorial Scholarship, named in honour of past General Manager Bob Martel, are now being accepted. The 2026 application will…
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25th Annual Golf Tournament – Thank You!
Dear Members and Friends of MCA Ottawa On July 9, 2026, the Mechanical Contractors Association of Ottawa held its 25th Annual Golf Tournament at The Meadows golf course. As you…
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