Automotive AC Repair
Stop on by and say hi, you'll be glad you did!

Automotive AC Repair & Maintenance Kingwood, TX

Stay comfortable on every drive with professional automotive AC repair from Sullivan’s Truck, Auto & Collision in Kingwood, TX. Our ASE-certified technicians provide fast, accurate diagnostics and quality repairs for all makes and models — keeping you cool in summer and warm in winter.

Your vehicle’s HVAC system does more than control temperature — it also clears your windows, filters your air, and keeps every ride enjoyable. At Sullivan’s, we handle all aspects of auto HVAC repair, from diagnosing refrigerant leaks to replacing heater cores and blower motors. Whether you need truck AC repair, car heater repair, or routine auto AC maintenance, our team has the experience and tools to get the job done right the first time.

Feel free to stop by, call us today at 281-359-3598, or schedule your car AC repair or heater service online.

Automotive AC & Heating Repair and Maintenance Shop in Kingwood, TX
Car AC & Heating Services in Kingwood, TX

Complete Auto AC & Heating Services

When your heating or cooling system isn’t working properly, it can turn a simple commute into an uncomfortable ride. Our Kingwood automotive AC repair team offers complete HVAC services to restore your system’s performance and reliability.

Our services include:

  • AC system diagnostics and leak detection
  • Refrigerant recharge (R-134a and R-1234yf systems)
  • Compressor, condenser, and evaporator replacement
  • Heater core and blower motor repair
  • Cabin air filter replacement
  • Climate control system electrical repairs

Expert Tip

If your AC is blowing warm air or your heater isn’t keeping up in cold weather, schedule service immediately — catching issues early can prevent costly repairs.

Nicholas Stander
17 hours ago
This is the place to go when you are looking for knowledgeable people at fair prices. They do all of our auto maintenance, oil changes, tires, etc.
Response from the owner:Thank you for your loyalty! Our Team takes great pride in providing superior service to our customers and top notch quality repairs to get you and your family back on the road safely. Happy Motoring!
Joe and the folks at Sullivan’s Truck and Auto consistently provide excellent service, considerate of the customer. I am grateful.
Candice Prince
4 days ago
I would definitely recommend Sullivan‘s for collision repair. They have great customer service and are good at timely communication. They work well coordinating with the insurance company and give a guarantee to their work. Thanks Andrew for all help! (He even helped me move my car seats from one vehicle to another)
Response from the owner:Hi Candice-- We are so happy that you were pleased with the repair of your vehicle. We know how stressful and frustrating it can be at times and are happy to hear that Andrew made it as easy and seamless as possible for you. Thank you for choosing Team Sully and we are always here for when you need us!
Pat Maher
5 days ago
We wouldn’t go anywhere else, recommend them highly
Response from the owner:Hey Pat! Thank you so much for your kind words. It means a lot to us that you trust us with your vehicle and to get you back safely on the roads. We appreciate you.
I had excellent service from the time I called to schedule to the moment I drove away. Joe, the service advisor was 100% professional, knowledgeable and friendly. Highly recommend this business for automotive needs!
Response from the owner:Hey Karen! We appreciate you too!! Thank you for choosing Sullivan's- we will always be here for ya when you need us! 🙂
Jacob Rivers
6 days ago
After a minor incident, our Cadillac Escalade needed an alignment. We took it to a body shop first. When we picked it up, it was driving terribly and felt almost uncontrollable. They realigned it, same issue.

Next stop was Cadillac. We explained everything to the service manager, they aligned it again and told us it was back in spec. I picked it up… and it still drove awful.

I bumped into Michael Sullivan and we talked about what was going on. So we brought it to Sullivan’s Truck, Auto & Collision Repair.

From start to finish, the experience was completely different. Great customer service. Clear communication. They test drove the vehicle themselves and confirmed what we were feeling. When we picked it up, they walked through the alignment printout with us in detail — something no one else had done.

The Escalade now drives exactly like it should. They even had it cleaned and ready to go.

Can’t say enough good things about the team at Sullivan’s. Professional, honest, and they actually fix the problem. Highly recommend.
Response from the owner:Hey Jacob --This means a lot to us and our team, thank you for your kind words! We know how frustrating it is to be told everything is “fine” when your vehicle clearly doesn’t feel fine. We’re so happy we could test drive it to feel what you were feeling and walk you through everything, so you felt confident getting back on the road safely. If you ever need anything at all, we’re here for ya!
Austin Sullivan
1 week ago
Pat was amazing!! Very helpful with the whole process and communicated almost daily with me about when it will be done and what work was being done! Over 10/10
Response from the owner:Hey Austin!! Thanks so much for speaking so highly of our Team. It means the world to us that you trust us with your vehicle when you need us the most. Thanks for choosing Sullivan's!
Glen Corder
2 weeks ago
Our first visit to Sullivans was today and we enjoyed the experience!
Thx Nik Helms
Response from the owner:Mr. Corder- thank you for your kind words and for leaving us a 5 star review! We are so happy to hear that Nik exceeded your expectations. Thank you for choosing Sullivan’s!
Mike Ward
2 weeks ago
Unfortunately, I was in an accident and my car was towed to Sullivan’s. I’ve lived in Kingwood for over fifteen years and have driven past their shop hundreds of times. It always looked busy, and I remember thinking, they must be doing something right.

From the moment I walked into the lobby, I was greeted with genuine smiles. The person I had the pleasure of working with was Pat. He was respectful of my time, listened carefully to my questions and concerns, and went the extra mile to make sure everything was handled correctly.

Even though my car was totaled, Pat was a perfect example of excellence and professionalism. If you ever need to take your vehicle to Sullivan’s Auto Body Shop, you’ll be in great hands with Pat and the rest of the team.
Joel Pousson
2 weeks ago
Wow! Had some minor work I needed done so I went to Sullivan's.. I had gotten a part online so I wasn't sure of my reception... William Scott could not have been more accommodating and helpful and than didn't even charge for the work done!! Will definitely return for maintenance and repairs on my two vehicles in the future!!
Vehicle AC and Heater Repair in Kingwood, TX

Signs Your Vehicle Needs AC or Heater Repair

Knowing when to schedule car AC repair or car heater repair can save you from bigger problems later. Watch for these warning signs:

  • Weak or no airflow from vents
  • Warm air when AC is on, cold air when heater is on
  • Unusual odors from vents
  • Strange noises when AC or heat is running
  • Fogging windows that won’t clear quickly

If you notice any of these symptoms, Sullivan’s can perform a thorough AC inspection to pinpoint the issue and recommend the best repair option.

Related Resource

Explore our Automotive Service & Maintenance page for other essential care services.

Why Choose Sullivan’s for Auto HVAC Repair

Since 1985, Sullivan’s has been providing honest, dependable automotive care to drivers in Kingwood and the surrounding areas. When it comes to automotive AC and heating repair, our customers trust us for:

  • Over 40 years of experience in auto repair and maintenance
  • ASE-certified technicians trained in modern HVAC systems
  • Accurate diagnostics to avoid unnecessary repairs
  • Transparent pricing and clear repair explanations
  • Lifetime workmanship warranty on all repairs

We don’t just fix your problem, we help you understand what caused it and how to prevent it from happening again.

Preventive Maintenance for Your AC & Heating System

Regular auto AC repair and HVAC maintenance can extend the life of your system, improve performance, and save you money. Our preventive services include refrigerant checks, belt inspections, and cleaning components to keep everything running smoothly.

Expert Tip

Running your AC for 10 minutes every couple of weeks — even in winter — helps keep seals lubricated and prevents refrigerant leaks.

Schedule Your Automotive AC Repair in Kingwood Today

Don’t wait until the Texas heat or a cold snap leaves you stranded without climate control. For fast, professional automotive AC repair, car heater repair, or complete auto HVAC repair, trust the experts at Sullivan’s Truck, Auto & Collision.

Call 281-359-3598 now or request your appointment online and enjoy comfortable, reliable climate control in your vehicle year-round.

Automotive AC & Heating Repair FAQs

Why is my car’s AC blowing warm air?

This could be due to low refrigerant, a failing compressor, or a leak in the system.

How often should I service my vehicle’s AC?

We recommend an inspection at least once a year, ideally before summer.

What causes a heater to stop working?

Common causes include low coolant, a faulty heater core, or issues with the blower motor.

Can I drive with a broken AC or heater?

While it won’t stop your car from moving, a failed HVAC system can affect defrosting and visibility, creating safety risks.

Do you service both cars and trucks?

Yes — we provide truck AC repair and car AC repair for all makes and models, as well as commercial fleet services.