Blue Diamond Heating & Air
Blue Diamond Heating & Air is a HVAC provider serving El Cajon, CA. Rated 5.0★ with 842 Google reviews. See services, review signals, and request a quote.
HVACEl Cajon, CA
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Company overview
- TradeHVAC
- Service areaEl Cajon, CA
- Google rating5.0★ (842 reviews)
- Phone(619) 567-9361
- Address405 Vernon Way, El Cajon, CA 92020, USA
Photos
Photos from Blue Diamond Heating & Air
What customers say
“Huge shoutout to Blue Diamond Heating & Air Conditioning and their amazing team, Junior and Eddie! ⭐⭐⭐⭐⭐ They replaced our thermostat wire and installed a new thermostat, and the whole experience was …”
“The Blue Diamond team is great & really helpful. Alecko came out as scheduled for a maintenance call & he was kind enough to clean our exterior unit as well. This sort of service is above & beyond an…”
“Mario was my Rep and he was EXCELLENT! Full of many years of work technical experience & expertise and the BEST Customer Service that was awe-inspiring. He was professional, courteous, constantly com…”
“Junior and Eddie did an excellent job removing my dead dyi install and replacing it with a new mini split. Great work and great communication. It’s really worth it to have a professional do your insta…”
“I had a little AC leak which cause the unit to stop working. I had Ozzy come by on time and prompt. He was quick to diagnose the issue, had some recommendations, and trusted his advice. Ozzy unders…”
Key highlights
Strengths
- Highly rated (5.0★ average)
- Large review volume (842 reviews)
Things to ask
- Confirm availability for your area and timeline
- Ask about warranty terms on parts and labor
- Request a written estimate before work begins
- Ask about payment plans or financing
Explore nearby research
Frequently Asked Questions
What services does Blue Diamond Heating & Air offer?
Blue Diamond Heating & Air provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in El Cajon, CA.
What is Blue Diamond Heating & Air's rating?
Blue Diamond Heating & Air has a 5.0 out of 5 star rating based on 842 Google reviews.
Is this company licensed in California?
All listed providers have a verified California contractor license at time of publication. You can verify on the Contractors State License Board (CSLB) lookup at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx.
Does Blue Diamond Heating & Air offer emergency service?
Contact them directly to ask about emergency availability and after-hours service.
How do I request a quote?
Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.
Licensing verified 2026-04-22. Reviews refreshed 2026-04-22.
Licensing data: Contractors State License Board (CSLB) · Company data: verified business records + Google Business profile
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