“Our new smart thermostat kept losing power because of old wiring. The installer added the correct common wire, configured the schedule, and the screen has not gone blank since.”
WO
Whitney O.Aylmer, ON
Services
Sweltering Inside? Your AC Repair Crew Is Ready
St Thomas Heating & Cooling: Central air, ductless mini-split, or heat pump in cooling mode, we repair them all. Homeowners across Ontario call us for weak airflow, frozen coils, and units that won't start, and we answer with same-day diagnostics, honest repairs, and full replacements when it's time.
Why Homeowners Call Us
Vents blowing warm while the thermostat says cool?
We provide expert AC repair for central air, ductless mini-splits, and high-efficiency systems, restoring cool air to homes throughout St. Thomas, ON.
Same-Day Cooling Restored Across St. Thomas
Most AC faults we meet in July are electrical, a capacitor, a contactor, a relay, and they are resolved in a single visit for the majority of St. Thomas repair calls.
Spring Tune-Ups That Skip the Wait
Book a cooling check in May and you skip the July emergency queue. We clean both coils, flush the condensate line, and test every safety control while the weather still cooperates.
Licensed, Insured, and Local to Middlesex County
Every technician on our team is fully licensed and insured under Ontario regulations, and every one lives and works in this region. Accountability is easy when your technician is also your neighbour.
FAQ
AC Repair in St. Thomas: Common Questions
How much does AC repair cost?
Most repairs come down to the failed part plus labour. We quote a fixed price before touching anything, and the estimate itself is always free.
How fast can you get my air conditioner running again?
A clear symptom description over the phone speeds everything up. Check your breaker and thermostat first, note any flashing error codes, and most repairs wrap up in the first visit.
Should I repair my AC or replace it?
Age decides most of it. Under ten years old, repair. Past fifteen, replacement usually wins, especially once major parts start failing. We walk you through the numbers.
Reviews
What St. Thomas Homeowners Say
Real feedback from neighbours we've helped stay comfortable year-round.
“I wanted a basic tune up and the technician respected that. He cleaned and tested everything, flagged one worn part without any pressure, and the system has never run smoother.”
LP
Lois P.Aylmer, ON
“Terrible screeching noise every time the fan kicked on. The bearing in the blower motor was failing, they replaced the motor the same day, and the house is quiet again.”
DH
Derek H.Aylmer, ON
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.