Mechanical Contractors Association of Ottawa

Dedicated to support and promote the advancement of the mechanical trades.

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.

About Us

MCA Ottawa Member Highlights

Featured News

Winter Gala Registration OPEN!

October 5, 2026

Registration & Sponsorship for MCA Ottawa’s Winter Gala is now available! Register Now!

All Members Meeting – Thank You!

September 10, 2026

All Members Meeting – Thank You! Thank you to All who attended MCA Ottawa’s 2026 All Members Meeting, and congratulations to our Award and Bursary Recipients!

Bob Martel Scholarship Application CLOSED

July 30, 2026

Robert (Bob) Martel Scholarship Application Applications for the Robert (Bob) Martel Memorial Scholarship, named in honour of past General Manager Bob Martel, are no longer being accepted The 2026 application…

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Upcoming Events

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Membership Benefits

Networking

Connect with local business leaders, potential clients, and strategic partners through events, meetings, and referrals. This can lead to increased visibility and new business opportunities.

Advocacy

Advocate for business-friendly policies and provide a collective voice on local, state, and national issues that impact businesses. Membership can help businesses stay informed about regulatory changes.

Apply for Associate Membership Now

Ready to Join?

Mechanical Contractors Membership

Mechanical Contractors Signatory to UA Local 71 and/or SMWIA Local 47 are entitled to Ordinary Membership with MCA Ottawa.

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Suppliers, Manufacturers & Service Providers

Becoming a member is a strategic move for businesses looking to grow, connect, and thrive in their community.

Become a member today!