“Excellent response time and very knowledgeable technicians. Our home was comfortable again by morning.”
MZ
Mark Z.Dorchester, ON
Services
AC Repair St. Thomas, ON
St Thomas Heating & Cooling — Air conditioner repair and replacement across St. Thomas and Middlesex County. We diagnose units that won't cool, freeze up, or leak refrigerant, and install efficient central air and ductless systems built for Ontario summers.
Why Homeowners Call Us
AC not cooling, blowing warm air, or making noise?
St. Thomas Heating & Cooling provides expert AC repair in St. Thomas, ON for central air, ductless mini-splits, and high-efficiency systems.
Fast, Reliable AC Repairs for Any Issue
Whether your air conditioner won't start, blows warm air, or makes noise, our emergency AC repair delivers fast diagnostics and same-day service to restore reliable cooling quickly.
Maintenance to Avoid Future Breakdowns
Regular AC maintenance improves efficiency, extends your unit's life, and prevents breakdowns. We inspect refrigerant, airflow, coils, thermostats, and ductwork to keep your AC running safely all season.
Trusted Local AC Experts
As a family-run HVAC company in St. Thomas, our certified technicians service all AC makes and models with transparent pricing, fast response times, and long-lasting repairs.
Reviews
What St. Thomas Homeowners Say
Real feedback from neighbours we've helped stay comfortable year-round.
“Professional service, fair pricing, and no surprises. They made the whole process simple and stress-free.”
KH
Kevin H.Komoka, ON
“Friendly staff and outstanding workmanship. Our system runs better than ever after their visit.”
JL
Jennifer L.Aylmer, ON
More Services
Explore Our Other HVAC Services
We Can Help Solve Your AC Repair Needs
Don't let a comfort problem disrupt your home. Get fast, reliable service from St. Thomas's trusted local HVAC team.