HVAC Repair in Nampa, ID
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 Canyon County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, three months of cooling, almost no break
Your furnace carries the load from October through May. On the nights that drop to 25°F, it runs long and cycles on and off for hours, and every start puts wear on the igniter and the burner. Come June, the same system switches jobs and the air conditioner takes over through afternoons that hit 89°F, pushing the compressor hard for three straight months. Only one month a year gives either machine a real rest.
Canyon County has logged 37 winter storms and 13 damaging wind events over the past ten years, and statewide, 11% of households lost power for a day or more in 2024. When the power drops on a cold night, a gas furnace with a standing pilot stays lit, but most furnaces need electricity to run the blower and controls, so heat stops until power is back.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 25°F
- the average winter night it heats against
- 89°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $80 a year off heating and cooling for a typical Canyon County home.
Estimates for a typical Canyon County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Idaho 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.
Idaho requires HVAC contractors to hold a state license.
The Heating, Ventilation and Air Conditioning Board issues that license, and it is tied to the contractor, not the job. The state has tested this person and keeps a record of them, but it does not test or sign off on each repair.
For a repair to your heating and cooling system, that license is what stands behind the work. It tells you the contractor was tested and is on record with the Idaho HVAC Board.
Sources: Idaho Legislature · Idaho Division of Occupational and Professional Licenses
- Why is my heat not working?
- Most often it comes down to power, gas, or airflow. Check that the thermostat is set to heat and the temperature is above room temperature, then check the breaker and the furnace switch, which looks like a regular light switch near the unit. If you have a gas furnace, make sure the gas valve is open and the igniter is actually lighting when it calls for heat. Winter nights here average 25°F, so a furnace that short cycles or won't stay lit needs a contractor before the next cold night, not after.
- Why is my system running but not cooling the house?
- The blower may be moving air while the part that actually cools it, the outdoor condenser or the evaporator coil, isn't doing its job. Start with the filter. A clogged filter starves the coil of airflow, and the coil can ice over so the air coming through feels warm instead of cold. Check the outdoor unit too. If the fan isn't spinning or the coil is caked in dirt or ice, it can't release the heat pulled from inside the house. Summer afternoons here reach 89°F, so a system that runs constantly without cooling is losing the fight against the heat, and it needs a contractor to find the actual cause.
- What can I check before calling for HVAC repair?
- Check the thermostat first. Make sure it's set to the right mode and the batteries aren't dead, since a blank or unresponsive display can look like a bigger problem than it is. Check the filter next and replace it if it's gray or clogged. Check the breaker panel and any switch near the indoor or outdoor unit, since a tripped breaker or a flipped switch will stop the system cold. If the outdoor unit has power but the fan isn't turning, or you smell gas near the furnace, stop checking and call a contractor. Idaho requires HVAC contractors to hold a state license through the state's HVAC Board, so whoever diagnoses the system should be licensed to work on it.


