Residential & Commercial HVAC Repair

San Antonio's Top HVAC Repair Service

With over 20 years of all HVAC Repairs, inclduing heating, ventilation and air conditioning repair experience, the expert technicians at DNR Refrigeration, Heating & AC have seen it all. We have the skills and knowledge to quickly diagnose issues with all major HVAC equipment and perform the necessary repairs to get your system functioning again.

As a leading provider serving the greater San Antonio area, we understand how disruptive a broken AC unit or failing furnace can be. That’s why we offer emergency HVAC repair services 24/7. Our qualified repair staff are available at all hours to respond rapidly to emergency calls from both residential and commercial customers. We won’t rest until your HVAC system is operational and your property is again comfortable.

Contact Our Team

Our HVAC Repair Services

Expert HVAC Repair Services in San Antonio, Texas

Residential HVAC Repair Services

Experienced technicians available for all home cooling, heating, refrigeration repair needs - call anytime your AC, furnace or appliance malfunctions. Our trucks stock all major brand parts for quick turnaround, usually within 24 hours. • All repair staff are background checked and drug tested for homeowners' peace of mind - we take safety and professionalism seriously.

Expert HVAC Repair Services in San Antonio, Texas

Commercial HVAC Repair Services

Our HVAC repair team is equipped to handle a wide range of issues, ensuring your indoor environment remains comfortable. Whether it's heating or cooling problems, we offer efficient solutions.

HVAC Issues We Repair

Our experienced technicians have repaired all of the following common HVAC issues:

Air Conditioners

  • Lack of cooling
  • Leaking refrigerant lines
  • Faulty compressors
  • Condenser or evaporator coil leaks
  • Thermostat malfunctions
  • Unusual noises indicating component failure

Heat Pumps

  • Not blowing hot air
  • Refrigerant leaks
  • Defective defrost sensors
  • Faulty reversing valves
  • Control board issues
  • Noisy operation


  • Not producing heat
  • Cracked heat exchangers
  • Ignition or pilot light problems
  • Burner failures
  • Blower motor malfunctions
  • Gas valve defects

Commercial Refrigeration Units

  • Evaporate coil leaks
  • Compressor breakdowns
  • Expansion valve issues
  • Temperature regulation failure
  • Refrigerant recharge needed

We also diagnose and repair all issues with thermostats, HVAC control boards, ductwork and other supporting components. Call us for any problem HVAC Repair problem- we’ve seen it before and fixed it!

Our HVAC Repair Process

When you call DNR Refrigeration, Heating & AC about an HVAC repair need, we follow a thorough, quality-focused process to get your system operational quickly:

Schedule Service Call

We schedule a time that's convenient for you for one of technicians to assess the problem. Emergencies get immediate priority.

Initial Diagnosis:

Our technician will arrive on-time and evaluate all aspects of your malfunctioning HVAC system to pinpoint the source of the issue. This may involve checking refrigerant levels, electrical components, part wear and more.

Communicate Findings

Once the technician determines the necessary repairs, they will explain the situation in detail, confirm the pricing and get authorization to complete the work.

Perform Repairs:

With approval, our technician will make all necessary repairs and replacements with brand new, warrantied parts, adhering to best practices.

System Test & Cleanup

Before leaving, the unit will be fully tested to confirm functionality. And everything will be cleaned up nicely.

Our skilled technicians average 10+ years of HVAC repair experience and receive ongoing training on new systems and solutions. We stand behind their workmanship 100%. If any issue arises with repairs performed, we will quickly address.

Our customers love our transparent, educational repair process and rave about the performance of our technicians. We promise to clearly communicate all findings and costs before proceeding.

HVAC Repair Service in San Antonio & Surrounding Areas

For over 20 years, DNR Refrigeration, Heating & Cooling has been San Antonio’s trusted source for expert HVAC repairs and service. Our experienced technicians have the knowledge to quickly diagnose any heating or cooling issue and perform the needed fixes.
We understand how disruptive and uncomfortable a broken HVAC unit can be for your home or workplace. That’s why we offer reliable service plans and 24/7 emergency repair assistance whenever an issue pops up.
To learn more about working with our HVAC repair experts or schedule a visit to inspect your failing or underperforming air conditioner, furnace, heat pump or commercial refrigeration unit, contact DNR Refrigeration, Heating & Cooling today at 210-555-1234.

Rely on the capable team at DNR to get your environment back to comfortable! We look forward to helping with all your HVAC repair needs, around the clock. Book Services, today!

Areas We serve

Locate Us

DNR Services Logo


Look out for issues such as insufficient heating or cooling, strange noises, increased energy bills, or uneven temperature distribution in your home. These signs often indicate the need for HVAC repair in San Antonio, TX.

The response time for HVAC repair in San Antonio can vary, but many reputable service providers aim to respond promptly. Factors such as the time of day, service provider availability, and the nature of the repair needed can influence the timeline. It’s advisable to contact a local HVAC repair company for accurate information.

Yes, regular maintenance is key to preventing frequent HVAC repairs in San Antonio. Schedule annual professional inspections, clean or replace air filters regularly, and ensure proper airflow around the HVAC unit. These preventive measures can extend the lifespan of your system and minimize the need for repairs.

The cost of HVAC repair in San Antonio varies based on the nature of the problem, parts needed, and labor involved. On average, residents can expect to pay a certain range for common repairs. It’s recommended to obtain quotes from local HVAC repair companies for accurate cost estimates tailored to your specific situation.

Many HVAC repair services in San Antonio offer emergency assistance for urgent situations. Whether it’s a sudden breakdown in extreme weather or a critical issue that needs immediate attention, reputable HVAC repair companies often provide 24/7 emergency services to address such concerns promptly.

Convenient Service Scheduling for HVAC Assessment in San Antoni