Amid the concerns regarding the spread of COVID-19, the health and safety of our customers and employees are top of mind. It is our honor and privilege to serve you and we want to assure you that we are taking all necessary steps to continue to operate safely and effectively.

  • - Our technicians are prepared with masks, gloves, and we disinfectant surfaces when necessary
  • - All staff are asked to stay home if they have symptoms
  • - All staff wash and sanitize hands regularly
  • - We are no longer shaking hands/physical greetings
HVAC Services in San Antonio, TX
Castle Hills, TX

Heating & Air Conditioning Repair in Castle Hills, TX

If you are looking for a reputable heating and air conditioning repair service in Castle Hills, Texas then ASC is a name you can trust to get your HVAC unit up and running quickly and efficiently. We handle all of your heating and air conditioning repair needs.

At ASC air conditioning and heating repair is more than just a job. We are client focused and that focus and drive is what makes us a leader in the HVAC field. We stand behind our work and always provide our first class service. We believe in our quality work and provide our service guarantee to each and every job that we do.

Our core values at ASC are HONESTY, QUALITY, INTEGRITY, CRAFTSMANSHIP, KNOWLEDGE, EXPERIENCE. Our team exemplifies these core beliefs and upholds them daily to the best of our ability. All our staff is highly skilled and knowledgeable in all things related to HVAC and we staff only the best in the business, the most honest and integrity filled people we can find. Our clients continually benefit from our values every day and we pride ourselves on treating our clients like ASC family. 

HVAC Service in Castle Hills, TX 

Our beautiful Castle Hills area isn’t known to have wild swings temperature wise but for your benefit and comfort you still want your HVAC unit to run efficiently when you do need to use it. So if the weather is uncomfortable in either extreme and you need your HVAC unit maintained, serviced or repaired give us a call. Our professional and friendly field technicians can help your HVAC unit run optimally so it can do its job of beautifully conditioning the air to your ideal comfort. 

HVAC Unit Maintenance

Our clients benefit from twice a year regular HVAC unit maintenance. In the spring months before the heat of summer takes hold, you will want your air conditioning to be primed and ready to run when you need its cooling air to flow at a touch. We also recommend a fall heating maintenance appointment to prep for the cold snap so that your HVAC unit is ready to heat when you want it, ready to go before you need it. Maintenance is preventative support for your HVAC unit and extends the life of your equipment. This is a perfect time to have all of the wearable parts and belts inspected and replaced or maintained. Regular maintenance extends the life and performance of your HVAC unit. Keeping the heating and cooling functions running efficiently throughout the seasons you need them most.

HVAC Unit Repair in Castle Hills, TX 

Even the most cared for HVAC units can have an issue where you are down when you need it. If you find yourself in this situation you want a team on the job that is knowledgeable, experienced and does quality work. This isn’t the time you want to mess around with a random person messing with your expensive equipment. Our staff is friendly and helpful and will get the job done promptly. 

We pride ourselves on No Hidden Fees or Surprise Surcharges. Ask us about our AC repair service guarantee.

HVAC Inspection and Service

If you are buying a new home or just need to have your HVAC unit inspected or serviced, our team can help. We are knowledgeable in all HVAC units of any age, make or model. Our service technicians are highly trained and are able to identify areas of concern and HVAC points of failure that you might encounter. We will help you identify a service plan, pricing details and timelines. And if the HVAC unit is failing and a full replacement is more cost effective we can help.

HVAC System Replacement

Sometimes an older HVAC unit just needs to be replaced rather than repaired. We will help you identify if that is the case for your unit and your personal goals. If this is a house that you are planning on owning for a long time then it might be the best decision to do a full HVAC unit replacement. We will consult with you on the best options for your budget and heating and cooling needs. From there we will make a plan for installation, and even hauling and disposal of your older unit. We are always here to be of service to you.

Contact Us For a Free Quote

We are dedicated to your heating and air conditioning comfort. We are here to help however we can with affordable repair options and maintenance. Please contact us at: (210) 920-8010 to set up maintenance, repair, inspection or service. We are also at the ready for any emergency HVAC repair needs you might have. Below are a few of the service options available to support you and your heating and cooling needs. 

Please let us know if you do not see what you are needing listed – we are always happy to help with all things HVAC related. 

Dial (210) 761-5130 for scheduling and more, or click here to request an appointment online.


  • Enviromentaly friendly
  • HVAC excellence
  • Angies List
  • BBB

5 Guarantees to Our Customers:

  • Property Protection Guarantee

    If our workers damage any of your property, we will repair it or pay to have it repaired by a professional.

  • Insurance Liability Guarantee

    To protect you from catastrophic loss, we carry a $1 Million insurance liability policy to protect you while we work in your home.

  • Professionalism Guarantee

    All employees and company representatives will introduce themselves and keep you informed while work is being performed. There will be no foul language or in appropriate dress.

  • 7 Day a Week Service Guarantee

    If something happens to your unit, no matter what hour or day, we will have someone take care of it as soon as possible. Our phones are manned 24/7 for your convenience.

  • Unit Satisfaction Guarantee

    Our manufacturers adhere to a strict policy on their units. They are willing to replace your unit if you are unhappy with its performance within the first year