Bob Jenson Air Conditioning and Heating
“Pouria came promptly to my office to fix the HVAC unit and solve the leak.”
Best HVAC Contractors in El Cajon, CA
22 companies listed · all 22 in El Cajon · 5 open 24/7 · 15 open weekends · 19 rated 4.5+
Data verified October 18, 2026
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Blue Diamond Heating and Air
“From Courtney who helps with scheduling and communications and Charles who is in the field, this outfit is highly professional, reliable & trustworthy.”
JPM Heating & Air Inc.
“They had one of the truck and was able to fix it right away.”
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Acs/ American Comfort Services
“Rafael was very professional and explained all details about the mini split.”
West Coast Heating
“Service done in a timely manner and explained everything to me with photos he took of my system.”
Global Heating and Air Conditioning
“If you need to have any heating and air work at your house, you could not do better than them.”
The 22 companies listed for El Cajon, CA work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Area overview: El Cajon, CA
All 22 companies we list here are in El Cajon itself. We have 31 companies in El Cajon on file; this page shows the highest-rated 22. The companies on this page are rated from 4.1 to 5.0 across 3,982 reviews; 13 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (95%), responsiveness (83%) and punctuality (80%). The topics that come up most in reviews of the companies on this page are "price", "efficient" and "estimates". 5 are open around the clock; 15 are open on Saturdays and 7 on Sundays. 16 show a license on their websites; 2 list staff certifications (NATE) and 6 have a BBB rating of A or A+. Domain records put 13 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 8 offer emergency call-outs; 10 offer financing or payment plans; 10 give free estimates; 8 are family- or locally-owned and 8 list coupons or special offers. 1 has Spanish-speaking staff. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for El Cajon work on Saturdays or Sundays?
Saturday or Sunday hours show up for 15 of the 22 companies here. Saturdays fill with the calls that came in on Friday, so ask whether you are getting a repair slot or a sales visit. Sunday work is usually treated as an emergency call.
Hurn Mechanical Heating & Cooling
“Hurn Mechanical is the best and Alan was here today and I always like it when he comes.”
Air Temperature Specialists
“We had Sean come out and give us a quote on a mini split system for our office, once we signed he set a date and the guys were there for an install within a couple of weeks.”
Liberty Mechanical
“Their field experts Edward and Chris came to my home and were knowledgeable, friendly, and transparent.”
Comfort Bros Heating Air & Plumbing
“They were all very friendly including Jessica at the office who called to follow-up to make sure everything was all right.”
Airmaxx
“Not only personable, but clearly he enjoys his job and provided such great pointers at keeping my HVAC system in good condition.”
Cano Air Conditioning & Heating
“Javier is a knowledgeable technician who diagnosis problems quickly and completes the job.”
Maximum Comfort Heating and AC Repair
“This is his second service call with us and I'm glad to know I've got a good company I can rely on.”
Mark's Heating & Air
“Stopped by on a last minute request and diagnosed the issue quickly.”
Air Flex
“Sal installed three heat pumps to date for us, all super high efficiency (high SEER) Fujitsu.”
Weather Machines Inc Air Conditioning and Heating
“Scott and Josh are a pleasure to work with and fixed my duct problem with skill and confidence .”
Gorgis Air Conditioning and Heating Inc.
“Hope God protects his health and bless his honest, sincere work and his business will flourish in all the areas.”
Blue Flame Heating & Air-Conditioning
“Nash came over diagnosed and fixed our A/C unit in less than 2 hours after being down for 3 weeks.”
Five Star Heating and Air Conditioning
“I highly recommend this company and I will do business with them again.”
Reliable Appliance Repair
“They sent a technician named Mike who quickly diagnosed and fixed the problem.”
P.a.c. Heating and Air Conditioning
“Will do everything they can to take care of your HVAC needs.”
On-Call Appliance Service
“They sent a technician early the next morning who identified and fixed the problem in under two hours.”
Why these companies made our list
What customers say about companies in El Cajon
- “Their communication was not only prompt but also thorough, addressing all of my inquiries with patience and attention to detail.” — customer of Airmaxx
- “Jake was very professional. He was neat and clean, taught me how to use the new thermostat and offered tips for the future.” — customer of Liberty Mechanical
- “ACS was a pleasure to work with. Brandon was very knowledgeable and patient.” — customer of Acs/ American Comfort Services
- “Cleaned up before they left, walking us through the work done, and changed and instructed us on the use of the new thermostat.” — customer of Comfort Bros Heating Air & Plumbing
- “Jason patiently answered all my questions about possible replacement units and was able to make suggestions based on what I wanted.” — customer of JPM Heating & Air Inc.
Excerpts from public reviews of the companies listed on this page.
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