We Build More Than Great Buildings.
We Build Great Partnerships.

J.J. McGuire is a leading construction services firm, delivering projects throughout Ontario and across Canada. As one of the largest construction firms in Durham Region, we are experienced in delivering projects across all sectors.

Featured Projects

Bob Myers Chevrolet Buick GMC Dealership

Bob Myers Chevrolet Buick GMC Dealership Upgrades

An established Chevrolet, GMC, Buick, and Cadillac dealership in Ajax, ON, Bob Myers required renovations at their Bayly Road location to align the dealership with a new corporate global branding vision.

Ajax, ON

Hydro One Clarington Autotransformer Station

Hydro One Clarington Autotransformer Station

Clarington, ON

J.J. McGuire was contracted to perform all civil work for this project. The site was developed in three quadrants and included extensive site work, concrete work, and the design-build of two new Relay Buildings with incoming cables and relay switching gear.

Trent University Oshawa Campus Classroom Renovations

Trent University Oshawa Campus Classroom Renovations

Oshawa, ON

J.J. McGuire was engaged as General Contractor to complete a series of interior renovations to existing classrooms on the campus to improve learning spaces, accommodate new furniture and equipment, and add a supporting kitchen area. On the exterior, a rework of an existing canopy was undertaken to improve the entrance area.

What We Do

WE BRING THE PROJECT VISION TO LIFE.

J.J. McGuire is experienced in delivering projects across all sectors, including institutional, municipal and civic, multi-unit residential, commercial, and academic, among others. For 40 years, we have been recognized for our specialized expertise in building complex, industrial and critical infrastructure facilities for energy, transportation, and automotive.

J. J. McGuire is an agile and collaborative project partner. We deliver exceptional projects and outstanding client service.

Construction Management

We work directly alongside the client and design team from the earliest stages of a project. This collaborative, transparent approach allows clients to maintain cost control and make informed decisions throughout every phase, from pre-construction through to occupancy.

General Contracting

With decades of experience across institutional, industrial, residential, and civic sectors, our team brings the discipline, relationships, and field expertise to take on challenging scopes and deliver results our clients are proud of.

Design-Build

We provide single point of accountability for both design and construction. This integrated method allows our team to identify and resolve challenges early, propose cost-effective solutions, and maintain alignment between design intent and construction reality from day one to final handover.

Let’s Build Together

J.J. McGuire’s personalized approach to project delivery helps our clients succeed. For 40 years, we have continued to build on our founding principle – build long lasting relationships through exceptional work and personalized project delivery.