HVAC Repair in Dallas, 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 Dallas County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work, most of it in the heat
Your system in Dallas County only gets a break for about a month a year. Summer afternoons averaging 94°F mean the AC runs long hours, month after month, from May through October. That kind of runtime wears on the compressor and the capacitor that starts it. When the capacitor weakens, the outdoor unit hums but the fan won't spin, and the house stops cooling on the hottest day of the week.
Winter is shorter here, November through March, but the nights still average 38°F, cold enough that the furnace has to cycle on through the night. And Dallas County storms complicate both seasons. Ten years of record show 22 winter storms and 145 damaging wind events come through this area, the kind that knock out power. Most homes here heat with electricity, so when the power goes, the heat goes with it. Statewide last year, a third of households lost power for a full day or more. When it comes back on, some systems need a hand to start again.
- 5 months
- November through March, your system heats
- 6 months
- May through October, it cools
- 38°F
- the average winter night it heats against
- 94°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Texas requires HVAC contractors to hold a state license.
Texas licenses HVAC contractors through the Texas Department of Licensing and Regulation. That means the state tested this contractor and keeps a record of who they are. The license belongs to the contractor, not to any single job, so it does not get pulled or renewed for this particular repair.
For a repair on your heating and cooling system, that license is what stands behind the person doing the work. It covers the contractor as a whole, built on testing and a record the state kept before this job ever came up, rather than anything specific to today's repair.
Source: Texas Department of Licensing and Regulation
- Why is my heat not working?
- Most often it is the thermostat, the power to the furnace, or the igniter. Check that the thermostat is set to heat and a few degrees above room temperature, and check the breaker for the furnace. Electric heat is the most common setup here, so a tripped breaker after a storm is worth checking first. If the thermostat reads correctly and the breaker is fine but no air is coming out, the igniter or a safety switch is likely the problem, and that needs a contractor to check.
- Why is my system running but not cooling the house?
- If the blower is running but the air is not cold, check the air filter first. A clogged filter chokes airflow across the coil, and on a 94°F afternoon that alone can keep a house from cooling down. If the filter is clean and the air still is not cold, the coil could be frozen or the system could be low on refrigerant, and both of those need a contractor to look at.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it is set to the right mode and the temperature is actually set past what the room is reading, since batteries or a bumped setting cause more no-heat and no-cool calls than people expect. Next check the breaker box for a tripped breaker, especially after a storm, since losing power for a day or more after storms is common here. Then check the filter, since a dirty one can stop a system from heating or cooling well even when everything else is working. If all of that checks out and the system still is not doing its job, that points to something inside the unit, and a licensed contractor should take it from there.