Ottawa's heating and HVAC contractor

343 HVAC is a heating and HVAC contractor serving homeowners in Ottawa, Kanata, Nepean, Orléans and the surrounding communities. The name is the area code: 343 covers the same ground as 613, the whole of the capital region, and so does the service. We install, service and repair gas and propane furnaces, cold-climate heat pumps, boilers and radiant systems, water heaters and gas fireplaces, run the gas lines that feed them, and look after the ductwork, humidity and filtration that decide whether the house is actually comfortable.

Heating comes first because Ottawa demands it. A January that averages around -10 and dips to -30 with the wind chill is not forgiving of a furnace that was sized by guesswork or a repair that was patched. Technicians who spend every winter inside furnaces and boilers diagnose faster and fix more carefully, and the rest of the HVAC work is held to the same standard: the heat pump, the ducts, the thermostat and the venting are treated as one system with the furnace rather than as accessories bolted on.

The phone is answered every day of the year, and a house with no heat gets the first available slot. If you need something that is not on the services list, ask; it will either be done properly or you will be pointed to someone who does it.

Every gas job is done by technicians certified by the Technical Standards and Safety Authority, as Ontario requires, and inspected under the Gas Utilization Code where the code calls for it. The price goes in writing before the work and the warranty goes in writing after it. When a repair is not worth making, you are told. When the furnace has years left in it, you are told that as well.