AC Repair St. Louis

St. Louis summer heat can be brutal, and having your air conditioner stop working when you need it most can leave you hot, sweaty, and in need of fast A/C repair services.

    Contact the Air Conditioning Experts of St. Louis: 314-739-1600

Contact the Air Conditioning Experts of St. Louis:


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When you need reliable air conditioning repair services, come to Design Aire! Our technicians have been helping customers in the St. Louis area with A/C system repairs for decades and stand by the values our founder, Frank Fischer, upheld of doing a good job at a fair price.

In addition to all of the awards and accolades we have received over the years, we are the #1 Trane dealer in the Midwest and have achieved that distinction for over 10 years now.

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We offer relaxed, friendly, no-pressure consultations so you know what to expect when our technicians come diagnose your A/C unit problem. We work with all makes and models of air conditioners and can get parts fast if we don’t already have them on hand to get the job done right quickly and efficiently.

Common Air Conditioning Problems

When your air conditioner stops working, one of many problems may have led to the system breakdown. A skilled air conditioning repair technician can diagnose the problem and fix your air conditioner.

Some possible problems with your air conditioner can include:

  • A tripped electrical breaker – Have you recently experienced a power surge due to a storm or other issue? If so, your breaker might have been tripped, causing the air conditioner to stop working.
  • Low freon in the system – A leak or problem with the refrigerant used in the air conditioner might lead an air conditioner to stop working or begin to blow warmer air. A technician knows what to look for to either add more freon to your system or recommend other fixes for your A/C.
  • Faulty wiring – Most older systems can, over time, experience wiring problems that lead to system failures. Weak wiring can also lead to a circuit breaker tripping, thus causing the A/C to stop working.
  • Faulty thermostat – As with faulty wiring, a faulty thermostat might cause the air conditioner to stop working. A technician will check both the main hardware as well as your thermostat during your appointment.
  • Clogged drain line – If your A/C unit has a leak or dripping around it, it’s possible a clogged drain line is the culprit. This can happen from debris or even dead animals getting caught in the drain line, which might not only cause a bad smell, but a less efficient system as a whole. Your repairs could include anything from unclogging the line to replacing the entire system, depending on the severity of the problem.
  • Dirty evaporator coil – Like with a clogged drain line, a dirty evaporator coil may cause your A/C unit to leak or drip, thus working less efficiently. A technician can diagnose this problem and work to fix it during your appointment.

These and many other problems with air conditioners can leave homeowners frustrated, but a skilled repair company like Design Aire can provide fast, efficient, and friendly service whenever you have a system failure.

In addition to our repair services, we offer regular air conditioning maintenance plans to ensure your air conditioner works well before you need it. No matter if your system is working well now, having an experienced A/C unit technician check on it ahead of time can prevent problems later on.

Schedule Your Air Conditioning Repair Service Appointment

For help with air conditioning problems right away in the St. Louis or St. Charles area, contact Design Aire today!

Financing is provided with approved credit by Wells Fargo Financial National Bank, an Equal Housing Lender.
Design Aire offers special financing with approved credit with this secure application:

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Customer Testimonials

Seth was our salesperson. He listened to our needs and provided the right product at the right price. The installation team arrived on time and went right to work.They worked with confidence and professionalism.We appreciated the care in protecting our floors and even the choice of how they went up on the roof indicated that they really did care. This company did what they said they would and certainly has our vote of appreciation and gratitude. We will happily recommend Design Aire to anyone.

Ken L.

One of the best companies to work with. My own profession is in a service industry and so I very much appreciate all the positive things about Design Aire.
The install crew arrived right on time and took exactly how much time they said they would to complete the job. The work was done well, the crew cleaned up after themselves, and were very pleasant. Seth in the office was extremely in-tune to our needs and very responsive.
I would highly recommend Design Aire.

Heather H.

Our new HVAC system was installed yesterday and we could not be happier. From quote to completion the process was great! 100% would recommend!

Greg H.

We have used Design Aire for both a new furnace two years ago and a new AC unit this summer. Everything was done very professionally and quickly. I would not hesitate to recommend them to anyone needing any type of HVAC work done.

Sean K.

Design Aire was the best choice from start to finish. Design Aire gave me the best price with the most detailed quote. The service technicians were very friendly and completed the job ahead of time. I highly recommend Design Aire.

John K.

We've used them for our old house and our new house. They are honest, friendly, professional and affordable. We felt lucky to find them.

Maddy R.

I was very impressed with Design Aire. They were timely and did an outstanding job with the installation of my new furnace. They had great communication and went above and beyond. I would highly recommend them to friends and family. Thank you so much Seth and Design Aire for making this an effortless transaction. VERY PLEASED!

Jonny M.

Design Aire sent a salesman to plan the system, and just a couple of days later sent the installers to remove the old system and install the new one. Everything happened when they said it would and the system performs as they said it would. All of the Design Aire staff were courteous, the work was performed efficiently and neatly, and they left the area cleaner than they found it. This is the second unit Design Aire has installed for us, and I have no need to look elsewhere.

Dan L.

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