nice-looking home interior

No Heater Is Too Big Or Small

Since 1980, THA Heating, Air & Plumbing continues to provide exceptional heater maintenance throughout residential, commercial, and mobile homes throughout San Diego county, including inspections, repairs, and installations. At THA, our NATE certified HVAC technicians has over three decades worth of experience with mini split systems, furnace models, and so much more.

Speedy Heating Services Throughout San Diego County

If you are considering a new HVAC system for your San Diego home, then you have come to the right place. Whether it’s a routine repair, installation, or emergency repair, our skilled technicians can handle it all.

Having served San Diego county for over three decades, our excellent service and workmanship has given us a strong reputation among our valued clients. When it comes to heating, we focus on four primary objectives:

  • - We strive to ensure that you get the best system based on factors such as budget and brand.
  • - We make it a priority that the systems we put in place are the safest and healthiest for you and the people you care about the most.
  • - We go out of our way to make sure you get the most energy-efficient cooling system around.
  • - Should you experience any problems with your current system, we will inspect and recommend the best course of action as soon as possible.

Our Services

  • - Boiler Services
  • - Heat Pumps
  • - Furnace Installation & Repair
  • - Heater Installation & Repair
  • - Thermostats
  • - Flame Sensor Repair
  • - Troubleshooting and Routine Maintenance
  • - 24/7 Emergency Services (outside regular office hours)

If you are looking to schedule a seasonal routine maintenance or repair your furnace, give us a call at (858) 571-8865.

Ask us about our $79 heating preventative maintenance coupon when you call THA at (858) 571-8865 to schedule your next HVAC appointment with us today!Make sure your heating and air is in tip top shape. Ask us how you can get 10% off any repair when you call us at (858) 571-8865.


THA began my project with making some energy efficiency upgrades on my home, then Hector installed my furnace. I was so pleased when the city inspector came out and said “Wow, this is a clean job, these guys do really good work!” I liked them so much, I just had them do my AC as well!

Alisha Q., Homeowner

Many thanks to Hector and Ismael for the great job replacing my ancient furnace. Good people to have in your home and I would have them back any time. Will use them again in the future.

Paula S., Homeowner

In our home THA installed a new heater, air conditioner, pipes, 3 thermostats, and put the heater in the attic. We asked them to finish as soon as possible because of the holidays and they finished a day early. We are very happy with the workmanship, how clean they worked, and nice staff.

Josie A., Homeowner