Modern Comfort for St. Marys' Century Homes
We are St. Marys Heating & Cooling, Perth County specialists in the careful work older houses demand, downtown and out past Wildwood.
Working Around a Century of Decisions
At St. Marys Heating & Cooling, we believe an old house should never have to choose between character and comfort. This town was built from its own quarries, and its Victorian homes still stand because people here look after what they have.
Houses here carry layers: gravity furnaces converted decades back, boilers patched through generations, ductwork threaded through walls never meant to hold it. A first visit is part inspection, part archaeology, and the plan we leave respects both the building and the budget.
Heat pumps suit these houses when they are done right: small footprints, gentle steady heat, no flue punched through limestone that has stood since the 1870s. We sweat the details, down to placing the outdoor unit where the neighbours will not mind it.
Projects We Take Real Pride In
Boiler replacements that keep radiators warm through January, ductless retrofits above original plaster, heat pump conversions for big drafty halls, humidifier installs that protect old woodwork, and service calls where the diagnosis takes longer than the repair.
Preservation Minded, Practically Priced
Every quote separates what a home needs now from what can wait a season or two. That honesty matters in a town where a heritage designation can shape what gets installed, and where property values reward work done properly.
We travel for this work too, carrying the same patience to Stratford's old streets, Embro's village homes, and Perth South farmhouses that still heat with oil and propane.
Honest, Transparent Pricing
Free quotes and clear estimates before any work starts.
Trained, Courteous Technicians
On-time, tidy, and respectful of your home.
Standing Behind Our Work
100% satisfaction guarantee on every job.
The Stonetown Deserves Warm Houses
If your walls are older than Confederation and your furnace is older than your kids, let's talk. Call (519) 284-0161 and book a walkthrough.
Serving St. Marys & Surrounding Communities
We provide fast, reliable hvac service throughout St. Marys and Perth County. If you don't see your town listed, give us a call, chances are we cover it.