Your Comfort Is
Just a Click Away
One Hour Heating & Air Conditioning® Serving Sunnyvale
4.84
When comfort matters, homeowners in Sunnyvale trust One Hour Heating & Air Conditioning. With scorching Texas summers and unpredictable winter chills, your HVAC system is essential year-round. Our certified technicians are ready to deliver fast, professional service that keeps your home efficient, comfortable, and safe.
📞 Call (469) 865-2669 today for your free HVAC estimate in Sunnyvale—experience punctual, guaranteed comfort service!
We’re more than just another HVAC company. At One Hour Heating & Air Conditioning, we’ve built a reputation on:
From spacious estates to cozy family homes in Sunnyvale, we tailor every solution to your property’s needs.
Is your thermostat inaccurate or unresponsive? We repair, calibrate, and install both standard and smart thermostats in Sunnyvale for better comfort and energy efficiency.
Texas heat isn’t forgiving—make sure your AC system is. We specialize in air conditioning repair in Sunnyvale, full installations, upgrades, and energy-efficient cooling plans.
HVAC issues don’t wait for business hours. Whether your furnace stops in January or your AC fails in August, our 24-hour HVAC repair in Sunnyvale is ready when you need us.
Poor airflow? Dusty vents? We offer duct cleaning in Sunnyvale, sealing, repairs, and redesigns to improve air quality and system efficiency.
From repairs to installations, our furnace services in Sunnyvale keep your home cozy during those unexpected cold snaps.
Sunnyvale’s allergy seasons can wreak havoc indoors. We provide air filtration, humidity control, and indoor air quality solutions that make breathing easier and homes healthier.
Sunnyvale is a peaceful, upscale suburb of Dallas with wide lots, newer homes, and a tight-knit community. Its architecture ranges from luxurious custom builds to elegant suburban homes.
Local climate challenges include:
We understand the construction and comfort expectations in Sunnyvale neighborhoods like Stoney Creek, Long Creek, and Collins Road.
We only install top-quality HVAC systems and components backed by our guarantees. Our materials and tools include:
Our work is covered by manufacturer warranties and our One Hour “Satisfaction Guaranteed” promise.
“Very satisfied with the fast, friendly service. One Hour is our go-to for HVAC in Sunnyvale.”
— Linda S., Sunnyvale
We stand out by offering:
We’ve earned the trust of homeowners across Sunnyvale—and we’re ready to earn yours, too.
We’re proud to be your local experts. Some recent jobs include:
We’ve likely worked on your street—or just a few doors down!
Protect your HVAC system and extend its life with these seasonal tips:
Ask about our Preventative Maintenance Plans in Sunnyvale for hassle-free comfort all year.
How much does AC repair cost in Sunnyvale?
Most repairs range from $150–$600. We always provide a free estimate and upfront pricing before starting any work.
Do you offer furnace tune-ups in Sunnyvale?
Yes—furnace inspections, cleanings, and performance tests to keep your heating safe and efficient.
Is duct cleaning necessary?
Yes. Clean ducts reduce allergens, improve air quality, and boost HVAC efficiency.
Are smart thermostats worth the upgrade?
Definitely. They save money, improve comfort, and let you control your home from your phone.
Do you offer 24-hour emergency AC repair?
Absolutely. We’re available 24/7 in Sunnyvale for emergency HVAC repairs.
📞 Call (469) 865-2669 now or schedule your appointment online for a free HVAC estimate in Sunnyvale, TX.
Why choose One Hour?
Let’s restore your home’s comfort—on time and done right the first time.
Sunnyvale is one of Dallas County’s most desirable suburbs. With a population just over 7,000, the city offers a mix of modern homes, natural beauty, and small-town charm. Top-rated schools, scenic parks, and proximity to Lake Ray Hubbard make Sunnyvale a top choice for families and professionals.
While we love servicing HVAC systems, we also love enjoying Sunnyvale’s local gems:
We're proud to live and work in Sunnyvale—and help keep its homes comfortable.
📞 Call (469) 865-2669 or request your free HVAC estimate in Sunnyvale today. Let One Hour Heating & Air Conditioning be your trusted partner in year-round home comfort.
We Have a Reputation
For Being Punctual, Friendly and Knowledgeable
4.84
Deb Withers
in the last week
“Kenneth was amazing! Overwhelming situation and in need of a temporary fix until I can have a more permanent solution. He explained everything to me several times and even though the fix may only be temporary, he was very upfront with what could be done right now and what needs to be done extremely soon. He seemed to be extremely genuine and honest and unfortunately for him this was quite an emotional thing for me after going through a recent divorce. Thank you for your professionalism and honesty Kenneth! Highly recommend.”
Jackie P
in the last week
“Great company! Reliable, responsive and incredibly knowledgeable. They were able to accommodate us same day, thoroughly explain the issue I was having and remediate quickly. Thank you so much for your expertise and professionalism!”
Keith Maholic
in the last week
“Anthony Romero Came out to my Home and it was very nice to have a service tech explain everything that he was checking and doing. Explaining what was wrong and how the service plans that were available and how they worked. Tony was very efficient he had the Blower motor replaced within a hour after he showed up very quick and would highly recommend him and Mitchell Heating and Air Conditioning Service.”
John Curry
in the last week
“I had a great experience with 1 Hour Heating & Air Conditioning! Rich Anton was my technician, and he was professional, quick, and reliable. On one of the hottest days of the year, with temps soaring my AC was not running the way it should and the house was becoming unbearable. Rich showed up fast, diagnosed and fixed the issue in under an hour—no upselling, just honest, efficient service. It was a huge relief to have cool air restored so quickly. It’s refreshing to work with someone who gets the job done right the first time. Highly recommend Rich and the team at 1 Hour!”
Trista DeFalco
in the last week
“Jose identified the problem quickly and placed an order for the parts needed-Easy to work with extremely helpful”
Debbie Disan
in the last week
“Tech Guys text you before coming.Jose did a great job finding the solution to my A/C unit. Tech guys are friendly and do great work”
Zachary Daniel
in the last week
“After having several bad experiences with other providers, Kenny was honest, fair and quick to diagnose and solve my AC issue. Super appreciative of the fast response and honest guidance. He was willing to walk me through everything that he was doing.”
Jennifer Pickron
in the last week
“Always professional and timely service. I have had the pleasure of using multiple services of One Hour. They perform twice a year HVAC maintenance and I have utilized their electrical and plumbing services. Most recent service from Max was prompt and though. He explained the next steps for managing my systems. Jeremy, from their electrical department, spent a day installing can lighting, under cabinet lighting and fixtures. I was completely satisfied with all the work that was done in my home. Office support staff are very kind and helpful in setting up my account for payments and appointments.”
Cesar M
in the last week
“I called One Hour Heating & Air Conditioning after another company failed to properly repair my home A/C—and I’m so glad I did. One Hour got it right the first time! Jose, Armani, and Roman were top-notch—professional, knowledgeable, and clearly experts at what they do. I highly recommend their service—10/10. Thank you!”
Shantel Smith
in the last week
“Ralf did an awesome job! Initially I was disappointed that my favorite technician, Jacob, is no longer there but Ralf went above and beyond! He gave me great information on how to keep my outside unit clean and praised me for keeping my attic so neat! He'll be my "go-to" tech for now on! Thanks Ralf! Don't leave any time soon! ❤️”
