4C A/C & Heating, LLC
Texas license: TACLB60872E (as listed on the company's website)
AirScouter › Katy › HVAC services
HVAC services in Katy, TX
From a broken AC in August to a heat pump struggling through a freeze, these local companies cover heating and cooling in Katy. Each one lists its services and Texas license number on its own website.
Last updated September 2026
Quick answer
AirScouter lists 3 local HVAC companies in Katy, TX, each checked against its own website (September 2026). Together they cover AC repair, AC installation, heating, maintenance, indoor air quality, 24/7 emergency service and commercial HVAC. Pick the service you need below, or call one of the licensed HVAC companies listed.
HVAC companies in Katy
Airtec Air Conditioning & Heating LLC
Texas license: (as listed on the company's website)
Eddie's Heating and Air Conditioning
Texas license: TACLB54786E (as listed on the company's website)
Listed from each company's own website, where we checked name, phone, services and license number (September 2026). Listed in no particular order; this is not a ranking. Confirm details and ask for a written estimate before hiring.
Choose a service in Katy
AC repair in Katy
When the AC stops cooling, blows warm air or freezes up.
24/7 emergency AC repair in Katy
Nights, weekends and heat waves, when you can't wait.
AC installation in Katy
Replacing an old system or adding a new one, sized for your home.
Heating repair in Katy
Furnaces and heat pumps, before and during cold fronts.
HVAC maintenance in Katy
Tune-ups that catch problems before the first heat wave.
Indoor air quality in Katy
Humidity, filtration and cleaner air at home.
Commercial HVAC in Katy
Rooftop units and systems for businesses.
What to know about HVAC in Katy
Katy has grown fast along I-10, and many homes in its master-planned communities are newer, often with the air handler in the attic. With the high summer temperatures out west of Houston, those attic units work hard, and a clogged condensate line is a common summer call. If your home is still under a builder or manufacturer warranty, check it before you book a repair.
- Change your air filter often; in summer, check it monthly.
- Schedule an AC tune-up in spring, before the first heat wave, when companies are busiest.
- Keep a couple of feet clear around the outdoor unit so it can release heat.
- Refrigerant work must be done by an EPA 608 certified technician.
HVAC questions from Katy homeowners
Which HVAC services can I find in Katy on AirScouter?
Each service below has its own page with the Katy companies that list it: AC repair, 24/7 emergency AC repair, AC installation, Heating repair, HVAC maintenance, Indoor air quality and Commercial HVAC.
How does AirScouter choose these companies?
Each company is listed from its own website, where we checked its name, phone number, services and license number (September 2026). The list is not a paid ranking. Sponsored listings, if any, will always be labeled.
How do I compare HVAC companies in Katy?
Call two or three companies, describe the problem, and ask about their next available time and a written estimate. Each listing shows the company's Texas license number, so you can see who is licensed before you call.
Helpful guides
- Commercial HVAC maintenance checklist
- Heat pump "aux heat" during a freeze: normal or a problem?
- How to lower indoor humidity in a Houston home
- What's included in an AC tune-up?
- What size AC does my Houston home need?
- What to do when your AC goes out in a Houston heat wave
- Why is my AC running but not cooling?
HVAC services in nearby cities
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