Thermostat and Smart Controls in the Greater Austin Area
Get fast, professional thermostat and smart control service today. Since 1977, McCullough Heating & Air Conditioning has helped Central Texas homes save energy with honest guidance and transparent pricing. We serve the Greater Austin Area, including Austin, Round Rock, and Cedar Park. Trusted by neighbors with a 4.8 rating from 3,091 reviews. Before summer heat or a cold snap, we’ll install, replace, or reprogram your thermostat so comfort is automatic. Schedule service or a consultation now.
Why Choose Us
Trusted since 1977Serving Austin homeowners for over four decades.
Transparent pricingClear estimates before work begins.
Pro smart setupWe install and configure leading smart thermostats.
Local expertiseSolutions tailored to Central Texas homes and climate.
Proven satisfaction4.8 rating from 3,091 reviews.
What Our Customers Say
professionalism
"He demonstrated some features on the thermostat that I was unaware of and set it up for us."
quality
"I was very pleased with them repacing HVAC and thermostat. The workmen were on time and answered all my questions."
speed
"He also figured out a puzzling issue with our thermostat. Excellent experience, first rate service!"
Where We Work
What areas do you serve for thermostat and smart controls?
We serve the Greater Austin Area, including Austin, Round Rock, and Cedar Park. Our team covers many nearby communities too. See the full list below for your city.
Greater Austin Area
Austin, TXRound Rock, TXCedar Park, TX
Complete Service Area:
Dripping Springs, TXWells Branch, TXElgin, TXLago Vista, TXBarton Creek, TXHutto, TXBuda, TXLiberty Hill, TXWeir, TXCedar Park, TXRound Rock, TXJarrell, TXDel Valle, TXPflugerville, TXSpicewood, TXGeorgetown, TXWebberville, TXWest Lake Hills, TXLeander, TXAustin, TXManchaca, TXRollingwood, TXCedar Creek, TXLakeway, TXSteiner Ranch, TX