Improving HVAC Efficiency

Air Conditioning Services

As San Diego's leading air conditioning contractor company since 1980, THA Heating, Air & Plumbing continues to provide excellent AC services throughout San Diego county. From installing new air conditioners to replacing mini splits, our NATE certified technicians will ensure that we will get the job done.

Our Commitment for Excellence

Whether you are in the market for a new air conditioner or you need help with an A/C repair or installation, THA Heating, Air & Plumbing is the company to call.

Our expert technicians are always up to date with the latest technology and energy efficient products to ensure that you and your loved ones stay cool during San Diego’s summer seasons.


Air Conditioning Services

  • - AC Installations & Repairs
  • - Ductwork Installations & Repairs
  • - Thermostat Repairs
  • - Air Flow Consultation & Design
  • - Heat Pumps + Mini Splits Installations
  • - Troubleshooting & Routine Maintenance
  • - 24/7 Emergency Services
  • ...and many more. Give us a call at (858) 571-8865 for your FREE estimate today!

Give us a call today at (858) 571-8865 to schedule your next HVAC repair or installation. We look forward to serving you!

Premier AC Repair and Replacement Company


San Diego summers can be some of the hottest, which is why you shouldn’t leave your cooling system maintenance checks until it’s too late. A broken AC can lead to swelter in home conditions and can cause you to close your doors temporarily as a business. Not to mention, emergency ac repair services generally end up costing you more than a regularly scheduled repair, and more hassle than you would have had if the issue had been caught during an ac maintenance check. If you need to get your San Diego air conditioning system checked before the next heatwave strikes, THA should be your first and last call! 

Investing In Your Air Conditioning

As a full service ac company, we offer more than just new system installation for homes and businesses in the area. Our team of certified ac contractors can help you to troubleshoot common problems with your home air conditioning system, evaluate the need for ac repairs, and even catch potential problems early on, keeping them from becoming major issues at the worst times. Put our years of industry knowledge and expertise to good use by letting us evaluate the energy efficiency of your existing system. 

New AC Installation 

Replacing your existing ac unit can feel like a burden, especially when it comes to cost. However, you could end up saving hundreds of dollars annually by replacing your outdated system with a newer model that offers better efficiency and output. At THA, we can help you learn more about the latest air conditioning models from leading manufacturers, as well as their respective warranties. We provide both residential ac installation and services and commercial air conditioning services to help you keep your home or business comfortable throughout the hottest season of the year. 

Air Conditioning Repairs and Scheduled Maintenance

If your existing ac system is still in its prime and keeping you cool all summer long, you still might not be in the clear. In fact, it’s shocking how often a minor unchecked issue or needed repair in an air conditioning unit leads to a major failure when your unit has to work overtime in the summer. We invest in our technicians and keep abreast of the latest industry training in order to provide the most comprehensive ac repair and maintenance solutions for more models than the competition. 

More About Our AC Service

THA Heating, Air and Plumbing is your one call solution for your residential or commercial ac, heating, and plumbing needs. As such we offer a full range of services, all done by our certified and vetted technicians backed by years of industry experience. 


Our services for ac systems include: 

• New AC Installation

• Replacement of existing AC units

• Heat pump maintenance and service

• AC maintenance

• Thermostat programming

• Mini-split AC services

• Commercial AC services

• Residential AC services


Our goal is to provide you with a budget friendly solution to your needed air conditioning repairs and installation, backed by friendly and knowledgeable service. We work with industry leading manufacturers in order to provide you a choice in the latest AC models from brand names you already know and trust. Call us today to learn more about our financing and warranty options on new air conditioning installation. 


My office was about to participate in the pride parade, but my A/C unit was not working. Hektor made sure my unit was serviced the day before even though THA was booked. This is the second time I’ve called THA and both times they went out of the way to service my office.

Melissa, Liberty Tax Manager

Had a new water heater installed on 7/19/17. They did a great job! Tech Gilbert was very professional and thorough. Operations Mgr. Hektor Barcenas was great with follow up and addressed my concerns. Special thanks to Mike, supervisor in the Plumbing Division for his special assistance. I would highly recommend this company.

John M., Homeowner

AC went out the day before Thanksgiving and they were the ONLY place willing to come out on Thanksgiving day to attempt to fix it. The ops manager himself came out and quickly diagnosed the problem. He was a complete professional through and through. Can’t say enough about this company!

Nathan Strang, Homeowner

Used these guys for 3 years and they are so good at what they do and very well priced. One of the hottest days in San Diego and of course the air goes out. They were so busy but THA made the time the same day and came out to fix our air. So thankful.

Marc L., Homeowner

My A/C stopped working on Saturday around noon.  I called THA, talked to Matt, and by 3pm it was fixed. Well done!!

Roger J., Homeowner