FeaturedTaking CallsHVAC Companies in El Cajon, California

Blue Diamond Heating & Air

Top Spot in El Cajon Today 5.00 (853 reviews)(619) 903-6401

Blue Diamond Heating & Air

Blue Diamond Heating & Air provides HVAC services from its El Cajon base and serves San Diego County. Owners Donavan Truesdale and Brian Armstrong also work as service technicians.

Show all 8 photos

Business Highlights

The company describes its team as born and raised in San Diego.
The company says its technicians are NATE-certified.
The company describes itself as fully licensed, bonded and insured for AC repair.

Service Area

Alpine, Bonita, Carlsbad, Carmel Valley, Casa de Oro-Mount Helix, Chula Vista, Coronado, Del Mar, Del Sur, Eastlake, El Cajon, Encinitas, Escondido, Eucalyptus Hills, Fairbanks Ranch, Hillcrest, Imperial Beach, Jamul, La Jolla, La Mesa, La Presa, Lake San Marcos, Lakeside, Lemon Grove, National City, Oceanside, Otay Mesa, Otay Ranch, Point Loma, Poway, Ramona, Rancho Bernardo, Rancho Santa Fe, San Diego, San Diego Country Estates, San Marcos, Santee, Solana Beach, Spring Valley, University City, Valley Center and Vista.

Featured Local Business

Blue Diamond Heating & Air is one of 11 HVAC companies ProsGrade lists in El Cajon, California.

Featured

Featured on ProsGrade

Listing details

8 services listed, including AC repair, AC installation and Heating repair. Open 24 hours, 7 days a week. Rated 5.0 from 853 reviews.

Verified listing details
Service information
Customer review signals
Photo gallery
Public contact information
Published local profile

How This Business Compares

How Blue Diamond Heating & Air compares with the other 10 HVAC companies on ProsGrade in El Cajon, using public Google ratings and review counts.

Ranks in the top 10% of El Cajon HVAC companies on ProsGrade by Google rating and review volume.
Rated 5.0 on Google, at or above the 4.9 average of other El Cajon HVAC companies on ProsGrade.
Has more Google reviews (853) than 8 of the 10 other El Cajon HVAC companies on ProsGrade.
One of 10 El Cajon HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.

Trust Signals

Listings indicate 24-hour availability; call to confirm current response times.

Services Covered

8 services

AC repair
AC installation
Heating repairGas and electric furnaces, heat pumps, ducted or ductless systems
Heating installationGas and electric furnaces, heat pumps and central heating systems
Indoor air qualityPotential options: high-efficiency air filters, air-purification systems and UV lights
Air duct repair and replacementFlex duct, sheet metal and duct board systems
Ductless mini-split systemsWall-mounted mini-split installations
Daikin Fit system

Reviews

What customers say

Customers praise punctual visits and clear communication. One customer appreciated a quick diagnosis of an AC leak and a job completed in time to pick up the children; another noted that a scheduled maintenance visit included exterior-unit cleaning.

Customer Reviews

Jamie Schroer Culbert

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 understood my dilemma with having to pick up the kiddos at a certain time and he was able to complete the job in time for me to pick them up. Ozzy did such a great that we'll be requesting his service in the future. Total cost was reasonable as well. So happy we diced to go with Blue Diamond!!!

View full reviewShow less

Marci

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 communicated to me and he kept me Informed and educated on my system. THANK YOU VERY MUCH MARIO for such wonderful service. Kudos to Both Donovan & Brian for creating such a Quality-oriented Business!!

View full reviewShow less

Rich C

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 fantastic from start to finish. They showed up right on time, worked quickly and efficiently, and kept everything clean and professional throughout the job. Junior and Eddie were not only skilled and knowledgeable, but also incredibly friendly and easy to talk to. It’s so refreshing to work with a company that truly values professionalism and customer service. Highly recommend Blue Diamond Heating & Air Conditioning if you’re looking for fast, reliable, and top-quality HVAC service!

View full reviewShow less

Will Healey

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 and we really appreciate it. We recommend Blue Diamond to people whenever we can & they have had the same experience as we have. Great local company.

View full reviewShow less

Kurt Megert

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 installation.

Write a Review

Share your experience with this business. Reviews are moderated before they appear publicly.

Frequently Asked Questions

Does Blue Diamond Heating & Air offer emergency heating repair support?

Emergency support is available 24/7 for urgent heating situations.

Does Blue Diamond Heating & Air offer free estimates for AC installation?

It offers free estimates for a new AC system.

How does Blue Diamond Heating & Air plan heating installations?

It begins with an in-home review of the layout, insulation, duct condition, airflow and household heat use, then runs load calculations.

Does Blue Diamond Heating & Air offer financing?

Financing is available.