Ottawa HVAC Experts
We repair and install furnaces, air conditioners, heat pumps, boilers and hot water tanks for Ottawa homes and commercial buildings. TSSA-registered, insured and open 24 hours.
- TSSA registeredFS-R-53336
- CoverageInsured and WSIB
- PricingWritten price before work
- WarrantyOn workmanship
- TSSA registeredFS-R-53336
- CoverageInsured and WSIB
- PricingWritten price before work
- WarrantyOn workmanship
Homes and commercial buildings
Our Services
Repair, replacement and new installation of heating, cooling and hot water equipment for homes and commercial buildings.
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Furnaces
Get a quoteFurnace repair and replacement. We find the fault, give you a written price, then repair or replace the unit.
Call for: no heat, a furnace that keeps shutting off, loud noises, an old furnace -
Air Conditioning
Get a quoteRepair, installation and replacement of central air conditioners.
Call for: warm air from the vents, a unit that will not start, an old unit to replace -
Heat Pumps
Get a quoteDucted and ductless heat pump installation and service, for heating and cooling from one system.
Call for: replacing a furnace or A/C, cooling a room without ducts, a heat pump that stopped working -
Boilers and Radiant Heat
Get a quoteBoiler repair and installation for houses and commercial plant rooms, including multi-boiler systems and in-floor radiant heating.
Call for: no heat or hot water, pump or valve faults, a new boiler -
Hot Water Tanks
Get a quoteRepair and replacement of hot water tanks, including after leaks and flood damage.
Call for: no hot water, a leaking tank, a tank at the end of its life -
Ventilation and Air Quality
Get a quoteEnergy-efficient fresh-air ventilation for better indoor air quality.
Call for: stale air, a new or renovated home -
Commercial Service and Maintenance
Get a quoteService calls, replacements and plant-room work for commercial buildings, plus seasonal maintenance and service contracts.
Call for: a building without heat or cooling, a maintenance contract, a planned changeout
Open 24 hours
Emergency Service
We are open 24 hours a day, 7 days a week. Call for no heat, no cooling, a failed boiler or a leaking hot water tank.
Smell gas? Leave the building first, then call Enbridge Gas at 1-866-763-5427 or 911.
Recent installations
Our Work
Photos from our Google Business Profile: wall-hung boilers, heat pumps, radiant heating and air conditioners. Tap a photo to enlarge it.
“I can’t recommend this business enough. Our boiler went down, and they were able to come out on very short notice to get us back up and running. The owner is incredibly meticulous and clearly prioritizes quality over cutting corners.”
“I had an outstanding experience with Alex. He serviced my A/C and brought my 2002 unit back to life like it was brand new. His professionalism, attention to detail, and customer-focused approach truly set him apart.”
“Excellent service from start to finish! Alex was professional, reliable, and very knowledgeable. He took the time to explain everything clearly, arrived on time, and completed the A/C system work efficiently.”
“Alex installed my A/C unit, replaced my hot water unit, and repaired my furnace.”
“His pricing was fair, and the quality of his work exceeded my expectations.”
TSSA registered
About Us
ThermalX Mechanical is an HVAC contractor on Alta Vista Drive in Ottawa. We repair and install furnaces, air conditioners, heat pumps, boilers and hot water tanks for houses and commercial buildings, from a single furnace call to multi-boiler plant rooms.
Every job starts with an assessment, and you get the price in writing before work begins. Alex owns ThermalX Mechanical. We come to your property across Ottawa and the surrounding area, any hour of the day.
- ThermalX Mechanical
- Registration
- TSSA fuels contractor FS-R-53336
- Coverage
- Insured and WSIB
- Pricing
- Written price before work starts
- Warranty
- On workmanship
- Location
- 1535 Alta Vista Dr, Ottawa, ON K1G 3N9
- Hours
- Open 24 hours, 7 days a week
Ottawa and area
Service Area
We travel to properties in Ottawa and every major community within about an hour of the city.
Type a town or tap one on the map or list.
See the full list of places we serve
Ottawa neighbourhoods
Within about an hour
Get in touch
Request Service
Send the details and we call you back. For no heat or no cooling, call instead.
Request Sent
We have your details and will call you back. If it cannot wait, call (613) 859-0229, open 24 hours.
Contact Us
(613) 859-0229- info@thermalx.ca
- 1535 Alta Vista Dr
Ottawa, ON K1G 3N9
Serving Ottawa and the surrounding area - Open 24 hours, 7 days a week