HVAC Repair in Tyler, TX
Homes here need heat from November through March and cooling from May through October. If your system quits, tell us what it's doing and a licensed contractor who covers Smith County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work a year in Smith County
Your system runs almost year round here. Heat from November through March, cooling from May through October, with only a short break between. That is eleven months of cycling on and off, and each cycle puts wear on the same parts.
Summer afternoons averaging 93°F push the compressor hard for six straight months. Winter nights averaging 38°F are not brutal, but the burner or heat strips still fire every night for five months. Most homes here heat with electricity, so when the grid goes down, the heat goes with it. Smith County has seen 9 winter storms and 148 damaging wind events over the last ten years, and a third of Texas households lost power for at least a day in 2024. A system that loses power and comes back on can fail to restart the way it should, and you notice when the house stays cold or hot longer than it should.
- 5 months
- November through March, your system heats
- 6 months
- May through October, it cools
- 38°F
- the average winter night it heats against
- 93°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
Texas requires HVAC contractors to hold a state license.
The Texas Department of Licensing and Regulation issues the license. It belongs to the contractor, not to the job, so it covers the person and the business rather than this one repair.
For a heating and cooling repair in Smith County, that license is what stands behind the contractor doing the work. It is the record the state keeps of who is allowed to take this kind of job.
Source: Texas Department of Licensing and Regulation
- Why is my heat not working?
- Start with the thermostat and the breaker before you assume the worst. If it's set to heat and a few degrees above room temperature but nothing kicks on, check the breaker panel for a tripped switch. Gas furnaces will often show a blinking light behind a small window on the unit, and that pattern tells a contractor what stopped it. If you hear the blower running but feel no heat, the igniter or the gas valve is a common cause and worth mentioning when you call.
- Why is my system running but not cooling the house?
- Check the filter first. A filter clogged with dust blocks airflow across the coil, and when air can't move past it the coil can ice over, so the system runs but only pushes out warm air. Next look at the outside unit. If the fan isn't spinning or the area around it is packed with leaves or grass clippings, it can't shed heat the way it needs to. If the filter is clean and the outdoor fan is turning, the system likely needs refrigerant checked or a part looked at, and that's a job for a licensed contractor.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and its setting first, since a dead battery or a mode set to the wrong setting causes more no-heat and no-cool calls than people expect. Check the breaker panel next. Then look at the filter, since a filter that's gray and packed with dust restricts airflow enough to shut a system down or freeze a coil. If the outdoor unit is covered in leaves or debris, clear the area around it. If none of that explains what's wrong, a licensed contractor can diagnose it. Texas requires an HVAC contractor to hold a state license through the Texas Department of Licensing and Regulation, so it's worth asking for that before work starts.

