HVAC Repair in Broomfield, CO
Homes here need heat from October through May and cooling from June through August. If your system quits, tell us what it's doing and a licensed contractor who covers Broomfield County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work a year, in swings from 20°F to 86°F
Your furnace carries the load from October through May, most of it on nights that average 20°F. That's a lot of cycles on the igniter and the burner, and a lot of chances for a worn igniter to quit lighting the flame. Come June, the same system switches over and runs the air conditioner through three months of afternoons near 86°F, which asks a lot of a compressor that has sat idle most of the year.
Broomfield has logged 71 winter storms and 60 damaging wind events over the past ten years. Wind and ice put stress on outdoor units and the electrical connections feeding them, and with most homes here heating with gas, a furnace still needs power to run its blower and controls. Statewide, 13% of households lost power for a full day or more in 2024, and a furnace that won't start when the power comes back on usually needs a hand, not just time.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 20°F
- the average winter night it heats against
- 86°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $110 a year off heating and cooling for a typical Broomfield County home.
Estimates for a typical Broomfield County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Colorado fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
- Why is my heat not working?
- Start with the thermostat. Make sure it is set to heat and the setpoint is above the room temperature, and check that its batteries are not dead. If the thermostat looks right, check your breaker panel and any furnace switch, since a tripped breaker or a switch bumped off will stop the furnace cold. Gas furnaces also need a pilot light or working igniter, so if you hear the blower run but never feel heat, that is worth telling a contractor when you call, since it points to an ignition problem rather than a power problem.
- Why is my system running but not cooling the house?
- The blower running without cool air usually means the problem is with the outdoor unit or the airflow, not the fan itself. Check your air filter first, since a clogged one chokes airflow across the coil and can freeze it over. Also check the outdoor condenser unit for a fan that is not turning or coils packed with leaves and grass clippings. If the filter is clean and the outdoor unit sounds normal but the house still is not cooling, the system may be low on refrigerant, and that is a repair only a licensed contractor can diagnose and fix.
- What can I check before calling for HVAC repair?
- Check the thermostat first, since a wrong setting or dead batteries cause more no-heat and no-cool calls than people expect. Next, check your breaker panel for a tripped breaker, and look for any power switch near the furnace or air handler that may have been bumped off. Check the air filter too, since one that is packed with dust chokes airflow and can shut a system down or freeze a coil. If you have a gas furnace, see whether the pilot light is lit or listen for the igniter trying to fire. Telling the contractor what you found, whether the blower runs, whether you hear clicking, whether the breaker was tripped, helps them get to the real problem faster.