HVAC Repair in Waco, 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 McLennan County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work, most years
Your system in McLennan County gets almost no rest. Summer afternoons average 94°F, and the compressor runs hard to keep it up from May through October. Come November the furnace takes over, and it runs until March, with winter nights averaging 38°F from December through February. Only one month a year gets to sit idle.
Most homes here heat with electricity, so a power outage means no heat at all. Across Texas, a third of households lost power for at least 24 hours in 2024. Wind is the bigger risk to that power in this area. McLennan County has logged 56 damaging wind events over the past ten years against 4 winter storms. Some systems need a hand to come back on once the power does. If yours won't hold heat on a cold night or can't keep up on a hot afternoon, that kind of run time is usually why.
- 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.
The Texas Department of Licensing and Regulation tests contractors before issuing this license and keeps a record of who holds one. That record follows the contractor, not the job, so the same license covers a heating repair, a cooling repair, or any other HVAC work that contractor takes on.
For a repair on a system that burns gas and moves refrigerant, this license is what stands behind the person doing the work. Texas requires it of the contractor, not of each individual job, so the license itself is the record worth knowing is there before that stranger works on your furnace or your coil.
Source: Texas Department of Licensing and Regulation
- Why is my heat not working?
- Most of the time it comes down to power, fuel, or airflow. If you heat with electricity, check the breaker first since a tripped one is common after a cold snap. Gas furnaces often stop on a safety switch when the igniter fails or the flame sensor gets dirty. Check the thermostat batteries and the air filter too, since a clogged filter can cause the furnace to overheat and shut itself off.
- Why is my system running but not cooling the house?
- The system is moving air but something is stopping it from actually cooling. A dirty filter is the most common cause, since it blocks airflow across the coil and the coil can ice over. Low refrigerant from a leak will also leave the air blowing warm even though the fan runs fine. If the outdoor unit's coil is caked with dirt or grass clippings, it cannot release heat the way it needs to, and the whole system struggles on a 94-degree afternoon.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it's set to heat or cool as needed, the batteries are good, and the temperature setting actually calls for the system to run. Next check the breaker or fuse for the unit, and look at the air filter, since a filter clogged with dust will choke airflow on both the furnace and the air conditioner. If it's an outdoor unit, walk out and make sure nothing is blocking it and that the fan is actually turning. If all of that checks out and the system still isn't working right, a licensed contractor can diagnose what's left.