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Top-Rated Geothermal heating or cooling system installers in Los Angeles - Updated Nov 2026

Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"We hired AC Dave to install a heating & cooling unit, after using them for our old unit's maintenance for years. It was a unit that. went on the roof, so installation was no small task. They did a fantastic job, kept the area clean, were extremely courteous, and we felt like we were hiring family to help us out. They pulled all of the permits which cost extra of course, but it saved us the hassle of dealing with the city and handled the post work city inspections."
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+6

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Brody Pennell Heating & Air Conditioning
New to Angi
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

Approved

In business since 1945

Free estimates

Credit card accepted

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.

44 neighbors recently requested a quote
Avatar for Southland Heating and Air Conditioning
Southland Heating and Air Conditioning
4.7(
160
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"Albert was very polite, helpful and showed me some easier ways to maintain my system. He also offered suggestions on how to best utilize the 2 systems we have to best advantage. I was notified when he would arrive (along with a photo), then an update (as he was early), and work was completed in a timely, efficient manner. I would definitely use Southland Heating again!"
This is the outdoor unit that offers 17 SEER Hyper efficiency and super quiet operation of 54db's compared to 80 plus on older units
notice the low profile, this is about 14 inch wide instead of the traditional 36 wide.
This replaces your old gas heater
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+37

Response time1 day
Response rate100%
Recommended by93%of homeowners
Avatar for Water Heaters Only, Inc
Water Heaters Only, Inc
4.7(
440
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

In business since 1968

Free estimates

Emergency services offered

"Setting up the appointment was easy. They offered to come out the next day but I needed to wait until Friday, my day off. Mike showed up on time. Did a good professional job removing and installing a new 50 gallon water heater. Mike also tested my water pressure and noted it was too high. For an agreed upon small additional charge he replaced my pressure regulator and a shut off valve."
Our technician Fabian getting ready to drain a water heater.
A newly installed 40 gallon residential water heater.
A tankless water heater installed in a garage.
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+2

Recommended by94%of homeowners
Avatar for Mirsky Heating & Air Conditioning
Mirsky Heating & Air Conditioning
4.9(
134
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"The BEST phone call I have made this year for a service needed in my home was to Mirsky Heating and AIr. I called in the middle of a So. Cal heatwave because my thermostat had stopped working and I needed to replace it. How often does an AC company, in the middle of a heatwave, tell you they can come the same day? NEVER!! Except for Mirsky..Darrow told me that he would try to make it work..and he did...which I will be forever grateful!!! He checked in with me during the day to assure me that he was coming and not to leave work until he was more clear on the time he would be at my home. He showed up with another Mirsky employee named John..they were both super friendly and so helpful. Darrow found the problem and within 45 minutes, the thermostat was replaced and everything was up and running again. I can't say enough how grateful I am to Darrow and Mirsky Heating and Air...I am giving their contact info to all of my friends and will be calling them again for anything heating AC related."
CEO & INSTALLER
CRANE
Rheem Puron System
Crane placing unit
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+15

Recommended by100%of homeowners
Home Comfort USA
4.3(
110
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"It was excellent. Chris Shay was excellent. He fully explained, was courteous and polite. He could see and understood why I had a previous bad experience with the install and cleaned up the mess that wasn't his that had previously left behind plus fixed other issues. He shared the pictures with his manager who also agreed that it was negative experience. He found that my account had fallen in the cracks and rectified the service that had been neglected. It was above and beyond my expectations. I look forward to him coming again to check up on the unit in 6 months. He also suggested and then installed an air cleaner which should help me with my health issues. All was accomplished today instead of being scheduled at a later date. I was very happy with him as he provided excellent service."
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Recommended by86%of homeowners
Avatar for Hermes heating and cooling
Hermes heating and cooling
5.0(
9
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

In business since 2019

Free estimates

"Hi fellows this company is very professional and they install 5 ton unit in my property I am very happy and I will hired again and also they are very honest because on one of my properties the thermostat was bad and couple of other companies told me I have replace the unit but these guys they charge the thermostat and solve the problem I highly recommend this company for all your havc need god bless you"
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+34

Recommended by100%of homeowners
Avatar for The Right Choice Heating & Air
The Right Choice Heating & Air
4.3(
169
)
Geothermal Heating or Cooling System - Install

Serving Los Angeles, CA and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"Technician David came out today and provided EXCELLENT service on our central AC/heating unit. He was very professional, courteous, quick and super knowledgeable. I learned so much about how the heating system worked. He installed a new package unit on our roof, new ducts throughout the house, and all new insulation. we are very pleased with the services provided from the right choice. thank you guys once again!"
AC Pro Heat Pump Installation
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+56

Response time10 hrs
Response rate100%
Recommended by81%of homeowners
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