Mechanical & HVAC Installation
MSH Group installs complete mechanical systems for commercial and residential buildings across the Greater Toronto Area. Every system is designed by our own engineers, installed by our own crews, and commissioned to match the drawings exactly, with nothing left to guesswork along the way. From rooftop units and ductwork to kitchen exhaust and make up air, we handle the full mechanical scope of a project under one roof, which means one company is responsible for the whole system working properly once it is finished.
Property owners, restaurant operators, developers and building managers across Toronto and the surrounding area come to us because they want an HVAC installation that has been engineered correctly the first time, not sized by guesswork and adjusted after the fact.
As a mechanical contractor GTA property owners and developers rely on for the full mechanical scope, here is what we cover under one roof.
Rooftop unit supply and installation, sized correctly for the building based on real load calculations rather than a rough estimate.
Ductwork fabrication and installation, built to match the mechanical drawings for the specific space rather than a generic layout.
Commercial ventilation installation and make up air systems, which are especially important for restaurants, industrial spaces and any building where fresh air requirements are part of the code.
Kitchen exhaust systems for restaurants, designed and installed to meet the specific code requirements that apply to commercial kitchens.
Heating and cooling system replacements and retrofits for buildings that need an existing system updated or replaced entirely.
HVAC work for build outs, additions and occupancy changes, where a new use for a space often comes with new mechanical requirements attached to it.
Every installation we complete follows engineered drawings, whether those drawings were prepared by our own team or by an outside engineer, with load calculations behind every single piece of equipment we select. That means the rooftop unit, the ductwork and the ventilation system are all sized to actually handle the space they are installed in, rather than a size that was picked because it seemed close enough.
This matters because undersized or oversized mechanical equipment causes real problems down the road, whether that is a system that struggles to keep up during extreme weather or one that short cycles constantly because it was never sized properly in the first place. It also matters at inspection time, since a system that was engineered properly is far less likely to run into problems when the city comes to sign off on the work.
Because our engineering team and our installation crews work for the same company, there is no gap between the drawings and the installation. The people designing the system understand exactly how it will be built, and the people building it are working from drawings that reflect real installation conditions rather than a theoretical layout.
A mechanical installation typically starts with a conversation about the space, the intended use, and any existing systems already in place. From there, our engineers either design a new mechanical system from scratch or review drawings you already have from another engineer. Once the drawings are finalized, our own crews carry out the installation, working directly from those plans rather than improvising on site. The result is commissioned and tested before we consider the job finished, so the system is confirmed to be working as designed rather than simply installed and left.
Yes. Our engineers can design the mechanical system from scratch, or we can install from drawings you already have prepared by another firm.
Yes, including kitchen exhaust systems and make up air, both of which have specific code requirements we account for during the design stage.
Both. We handle new installations as well as replacements and retrofits in buildings that already have a mechanical system in place.
This depends heavily on the size and complexity of the project, so it is best discussed during your initial conversation with our team rather than estimated in general terms.
Toronto, Mississauga, Brampton, Vaughan, Markham and the surrounding GTA.
This is worth confirming directly with our team based on the specific system installed, since it can vary by project.
