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.

Expert Heating System Repair And Maintenance 


Winter weather is always just around the corner. Even if you love the cold weather, you most likely don’t want to feel the icy chill of Old Man Winter in your own home. And you certainly don’t want to wake up in the middle of the night to find that your heating system has given up the ghost. At THA Heating, Air, and Plumbing, we’ve got you covered with emergency heating repair services that keep your home toasty even in the middle of winter. Our team of certified heating technicians are dedicated to helping your home stay warm with affordable heating system maintenance, installation of the latest energy efficient heating systems, and system repairs using the latest industry techniques. Our unparalleled services are what makes THA a top rated heating contractor in San Diego

Put Our Expertise To Work 

The technicians at THA Heating, Air and Plumbing have years of industry experience when it comes to choosing energy efficient replacement systems or making repairs to existing heating systems. Take advantage of our heating system maintenance services that ensure your system is running at its best and catch any potential issues before they lead to heating failure at the worst possible time. Ready to upgrade your heating and save on your annual bills? Ask our friendly heating technicians about the energy benefits of new heating models and the available warranties on new system installation. 

Furnace and Heating Repair

Older homes and older systems require additional knowledge and care in order to keep them efficient and extend their life. If you are in need of furnace repair for your old house, call THA right away. We have the skills and the tools to take on any heating challenge you may be faced with. And thanks to our emergency heating service, you can be sure we will always be there when you need us most. As a top rated heating repair company in the area, we specialize in both repair and replacement options that fit your budget and your home. We only employ skilled and friendly technicians so that you can be sure that you’re hiring a heating company you can trust. Call us today to see how we can save you hundreds of dollars in repair costs with regular maintenance or replacement options. 

Heating Installation

Ready to replace your outdated heating system before winter sets in? Give THA Heating, Air, and Plumbing a call and let our technicians explain the energy and cost benefits of some of the latest models available. Our knowledgeable staff can help you explore heating systems and warranties that meet your needs and schedule your new heating installation fast. Working with the best heating manufacturers in the industry helps you get better pricing on newer models. Give us a call to learn more about the newest heating models and solutions for your home or business. 

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