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Blue Diamond Heating & Air Conditioning
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About
About Blue Diamond Heating & Air Conditioning
At Blue Diamond Heating & Air-Conditioning, we’re a proudly family-owned and operated business based in San Diego that specializes in residential ductless mini-splits, new system installations, routine service and maintenance, and indoor air quality enhancements. We bring premium craftsmanship, full transparency, and a customer-first mindset to every job — no subcontractors, fully-branded vans, and a commitment to lifetime workmanship.
Languages spoken
- English
- Spanish
In business since
May 2019 (8 years)
Contact details
Location and service area
405 Vernon Way, El Cajon, CA, 92020
Verified business license
This pro has a valid business license. We regularly check the status of contractor licenses to ensure they are a reputable and trustworthy business.
Services
Heat pumps & HVAC
- Air to water heat pumps
- Ground source heat pumps (geothermal)
- Water source heat pumps
- Fresh air systems
- Whole house fans
- Heat pumps (ducted central air)
- Heat pumps (ductless mini-splits)
- Smart thermostats
- Indoor air quality assessments
Water heater
- Heat pump hybrid water heaters
Energy efficiency & weatherization
- Air sealing
- Insulation
- Ductwork
- Energy efficiency improvements
Types of services provided
Project gallery
Credentials
Verified program partner
This pro participates in the following programs.
TECH Clean California
TECH HVAC
Participating contractors meet rigorous training standards to install energy-efficient electric appliances. Customers can access attractive rebates to help fund home electrification projects.
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Quality Residential HVAC Services
Participating contractors use proven diagnostic practices to improve HVAC service delivery. Customers benefit from higher-quality custom solutions that lead to reliable home performance.
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Professional certifications (self-reported unless otherwise indicated)
- NATE HP Specialty
- National Comfort Institute (NCI)
Incentives
Financing
- Financing options available
Additional information
Business diversity (self-reported unless otherwise indicated)
- Small Business
Other highlights