AC Repair

With over 20 years of air conditioning system repair experience in the San Antonio area, the expert technicians at DNR Refrigeration, Heating & AC have the skills to diagnose any air conditioning issue quickly and perform the necessary ac repairs. We’ve seen it all when it comes to AC malfunctions and equipment breakdowns.
As a leading residential and commercial HVAC provider serving greater San Antonio, we understand the urgency when an AC unit stops working properly during hot Texas summers. That’s why we offer 24/7 emergency AC Repair dispatch to get your system back up and running at any hour.

Our AC repair staff has years of hands-on experience assessing cooling issues and making quality, lasting repairs. We aim to exceed expectations with every job while treating each customer’s home or business with care and respect.

Contact Our Team

Our AC Repair Services

Residential AC Services

Our seasoned technicians fix all home air conditioning issues quickly, handle new AC installations to spec, perform thorough seasonal tune-ups with full system sanitization, and have expertise servicing all major brands.

commercial building

Commercial AC Services

We service large-scale commercial AC systems like packaged units, splits and chillers while assigning dedicated account representatives to provide tailored preventative maintenance plans that minimize disruptive emergencies.

Specialty Air Conditioning Repairs

  • Compressor Repairs: Replace burnt-out start/run capacitors, contactors, bad bearings and more.
  • Coil & Condenser Repairs: Repair leaks, unclog blocked airflow, replace corroded coils.
  • Refrigerant Leak Repairs: Detect and seal refrigerant leaks in lines, coils, fittings, valves.  
  • Drain Line Clearing: Clear out clogged condensate drain lines causing water overflow.
  • Thermostat Repairs: Replace defective control boards, sensors, wiring.
  • Refrigerant Recharge: Check refrigerant levels, recharge entire AC system as needed.  
  • Dehumidifier Repairs: Service humidistat, control boards, pans, coils and pumps.

And more – we fix all makes and models of AC issues!

Our Repair Process & Capabilities

When your AC unit stops blowing cool air, rely on DNR Refrigeration, Heating & Cooling’s refined repair process perfected through extensive experience serving San Antonio area customers:


Contact us any time of day to schedule an AC repair appointment. Emergencies get priority dispatch.


Our HVAC techs thoroughly evaluate your entire air conditioning system to pinpoint the exact problem.


We explain what's failing, advise the best fix options, and provide fair and reasonable repair pricing.


Once approved, we expertly perform all necessary AC repairs.

Test & Clean

Afterwards, we thoroughly test functionality and leave the workspace tidy.

Our technicians average many years of hands-on AC repair experience. And no matter the brand or age, we likely service it and can source quality replacement parts locally to get your system running optimally again.

Areas We serve

Locate Us

DNR Services Logo


If you notice unusual sounds, diminished airflow, or inconsistent cooling, it’s advisable to schedule a professional inspection. These issues could indicate potential problems with your air conditioner that may require prompt repair. Regular maintenance can also help identify issues before they escalate, ensuring optimal performance.

Our AC repair services distinguish themselves through a combination of expertise, reliability, and a customer-centric approach. Our 5-star air conditioning repair experts bring years of experience, ensuring precise diagnostics and efficient solutions. We prioritize customer satisfaction, offering transparent communication, upfront pricing, and a commitment to delivering unparalleled service.

Routine maintenance is crucial for the longevity and efficiency of your HVAC system. We recommend scheduling professional maintenance at least once a year, preferably before the start of the cooling or heating season. Regular tune-ups can catch potential issues early, optimize performance, and enhance energy efficiency.

While some minor maintenance tasks can be handled by homeowners, AC repairs should be left to professionals. HVAC systems are complex, and attempting DIY repairs may lead to further damage or void warranties. Our 5-star air conditioning repair experts have the knowledge and tools to diagnose issues accurately and implement effective, lasting solutions.

Upgrading to a newer HVAC system can offer benefits such as increased energy efficiency, improved performance, and advanced features. Our experts can assess your current system’s condition and provide recommendations based on factors like age, efficiency, and repair history. We prioritize cost-effective solutions, helping you make informed decisions that align with your comfort and budget goals.