Heat Pump Repair & Servicing in Castle Hills, Texas
Keeping your home comfortable year-round in Castle Hills, Texas, requires a reliable heat pump. Diamondback AC provides heat pump repair and servicing to keep your system working. Whether it’s heating in winter or cooling in summer, our team makes sure your heat pump operates right to help you stay comfortable no matter the season.

Reliable Heat Pump Repair for Castle Hills Homes
Your heat pump works throughout the year to provide both heating and cooling. When issues like inconsistent temperatures, strange noises, or frequent cycling arise, our technicians are here to locate and repair the problem. From refrigerant leaks to electrical issues, we fix everything to keep your system functioning. Regular servicing also helps improve efficiency and allows your heat pump to last longer.
Common Heat Pump Problems We Fix in Castle Hills
Uneven Heating or Cooling
If your heat pump is struggling to maintain consistent temperatures, it could be due to airflow problems or low refrigerant. We’ll troubleshoot and fix the issue for better performance.
Frozen Coils in Winter
During colder weather, your heat pump coils may freeze. We’ll defrost the system and fix any underlying causes to prevent future freezing.
Short Cycling
If your heat pump is turning on and off too frequently, it may indicate an electrical or thermostat issue. We’ll find and repair the root cause to restore operation.

Keep Your Heat Pump Running Efficiently with Regular Maintenance
Regular maintenance is very important for preventing repairs and improving the efficiency of your heat pump in Castle Hills. Our maintenance services include checking refrigerant levels, cleaning coils, and inspecting key components. Routine tune-ups help prevent breakdowns throughout the year which saves you money on energy bills.
Signs You Need Heat Pump Repair or Servicing in Castle Hills
Heat pump frequently turns on and off during operation.
Higher energy bills without increased usage or changes noticed.
Inconsistent temperatures or poor airflow in multiple rooms.
It’s been more than a year since servicing was completed.
Unusual noises like grinding or rattling when running.
Warm or cool air feels weaker than before.
Trusted by the Adkins Community
PWT2025-08-14Trustindex verifies that the original source of the review is Google. Diamond Back is a great company with great staff, whether in the office or in the field. Service is prompt, friendly, and highly professional. They even set us up with a complimentary portable A/C unit so that we at least had one comfortable room while they were waiting for our parts to arrive. Can't recommend them highly enough! J Colt2025-08-11Trustindex verifies that the original source of the review is Google. Used Diamondback AC again for hole HVAC services and they did an awesome job! Thanks THOMAS HIME2025-07-31Trustindex verifies that the original source of the review is Google. Diamondback AC was on the job within 4 hours of my call. In this Texas heat every minute counts. They diagnosed the issue and made the repairs very quickly. I was very impressed with their work and their pricing. Wouldn't hesitate to use them again and to refer them to friends and family. Thanks again! Candace Hillard2025-07-31Trustindex verifies that the original source of the review is Google. Jose was thorough and on time and worked meticulously to ensure system was functioning properly. Zachary Aybar2025-07-22Trustindex verifies that the original source of the review is Google. Excellent service! Appreciate your help and professionalism Jesus López2025-07-22Trustindex verifies that the original source of the review is Google. Diamondback A/C was able to take care of our problem. The tech came out and cleared the problem on a weekend. 100% recommend these guys Mark Nelson2025-07-14Trustindex verifies that the original source of the review is Google. Jose was great. He took the time to explain in terms I could understand what he was going to do and at the end what he did. Very knowledgeable and professional. Roy White2025-07-09Trustindex verifies that the original source of the review is Google. Always available to come out quickly. Never trying to oversell non issues and always professional. Will continue to use Diamondback! k g2025-07-01Trustindex verifies that the original source of the review is Google. Diamondback was recommended to us from a friend, and they're amazing. Very polite, communicated any issues, and fixed our AC unit quickly. Marye Lou Landrum2025-06-30Trustindex verifies that the original source of the review is Google. Excellent Company. Have used them several years. Very professional and excellent work ethics.
Keep Your Home Comfortable with Heat Pump Servicing
Don’t let heat pump issues ruin your comfort. Diamondback AC offers reliable heat pump repair and maintenance services to keep your system in its best shape. Contact us today to schedule your service in Castle Hills, Texas.
| Service Areas
Serving Adkins, Texas and Surrounding Areas
Adkins, Texas, is a small community located just southeast of San Antonio. Known for its rural charm and close proximity to larger cities, Adkins offers residents a quiet lifestyle with easy access to the amenities of San Antonio. The area is home to several local attractions that highlight its rich history and natural beauty.
Calaveras Lake
Calaveras Lake is a favorite spot in Adkins, Texas, where residents enjoy fishing, boating, and picnicking. This reservoir also plays an important role in providing power to the region..
Adkins Community Center
The Adkins Community Center is a key location for local events and gatherings. It’s where residents come together for meetings, celebrations, and community activities.
St. Hedwig Memorial Park
St. Hedwig Memorial Park, located nearby in St. Hedwig, offers a quiet place for relaxation. The park is an important part of the area’s history, providing a beautiful setting to appreciate local heritage.
Diamondback AC, Heating & Refrigeration
Castle Hills’ premier choice for dependable and efficient HVAC services, catering to both residential and commercial needs.