Reliable Heat When Temperatures Drop Unexpectedly

Winter nights in San Antonio drop into the thirties and forties, and when your furnace fails to ignite, blows cool air, or shuts off before your home warms up, you need service that restores heat quickly. You may smell gas near the unit, hear clicking sounds that signal ignition problems, or notice the blower runs without producing warm air. B & C Service Pros, LLC responds to these heating failures by inspecting ignitors, flame sensors, gas valves, and blower motors that stop systems from operating safely and efficiently.

We provide dependable heating services and furnace repair in San Antonio to keep your system operating safely and efficiently. Our technicians test thermostat signals, check air pressure switches that monitor exhaust flow, clean burners that collect dust and residue, and replace cracked heat exchangers that allow combustion gases to mix with indoor air. From minor repairs to full system replacements, we ensure your heating system performs when temperatures drop and you need it most.

If your furnace will not start or you notice unusual sounds or smells when the system runs, contact us to schedule a heating service call in San Antonio.

Heating repairs in San Antonio start with testing the thermostat to confirm it sends the correct signal to the furnace, then checking the ignition sequence to see if the ignitor glows, gas flows, and the flame lights as expected. We measure voltage at the control board, inspect the flame sensor for carbon buildup that prevents it from detecting heat, and check the blower capacitor that starts the fan. These components fail over time and stop the system from completing its heating cycle.

After repairs, your furnace lights within seconds of the thermostat call, air from vents feels warm within a minute, and the system runs quietly without the banging or rumbling that signals burner or blower problems. You also use less gas because the system no longer cycles repeatedly trying to maintain temperature. Our technicians ensure reliable performance when temperatures drop, addressing safety concerns and restoring comfort throughout your home.

We replace filters, inspect venting to ensure combustion gases exit properly, and test carbon monoxide detectors to confirm they work if a problem develops. Service visits include checking the flame pattern for proper combustion and measuring supply air temperature to verify the heat exchanger transfers heat efficiently.

Homeowners in San Antonio often ask about safety, repair timing, and what signs indicate a furnace needs immediate attention before they book service.

B & C Service Pros, LLC handles heating services and furnace repair throughout San Antonio, responding to calls when systems fail and working to restore heat before temperatures drop further overnight. Reach out when your furnace needs attention or when you want to schedule maintenance before winter.