Furnace Won't Start? AC Not Cooling? Guelph's 24/7 HVAC Response

A standard diagnostic and repair call runs $250–$600 depending on the part (igniter, control board, motor). Diagnosis alone is typically $100–$150, credited toward the repair if you proceed. Major component failures on an older furnace sometimes make replacement the better financial call — we'll tell you which situation you're in.

A mid-efficiency furnace runs roughly $3,500–$5,500 installed; a high-efficiency condensing furnace $5,000–$8,500, depending on size and ductwork condition. Heat pump systems and combined heating/cooling installs are quoted separately — see our installation pages.

Thermostat batteries/settings, the furnace power switch (looks like a light switch near the unit), and your breaker panel. If it's a gas furnace, check that the gas valve is on. If none of that fixes it, don't keep cycling the system — call for service, especially overnight in winter.

Yes — furnace repair and replacement, central air conditioning, ductless and ducted heat pumps, and hybrid systems that pair a heat pump with a gas furnace for deep-cold backup, which is an increasingly common setup in this region.

Yes — a home with no heat in a Guelph winter can see pipes at risk of freezing within hours in a bad cold snap. That's why no-heat calls get priority dispatch, day or night.