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5 Diamond Mechanical
5 Diamond Mechanical
5 Diamond Mechanical
5 Diamond Mechanical 5 Diamond Mechanical
5 Diamond Mechanical
5 Diamond Mechanical 5 Diamond Mechanical
5 Diamond Mechanical
5 Diamond Mechanical 5 Diamond Mechanical
5 Diamond Mechanical
5 Diamond Mechanical 5 Diamond Mechanical
5 Diamond Mechanical
5 Diamond Mechanical 5 Diamond Mechanical
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Founded In: 2015
Size: 20-49 Employees
Annual Vol: $1 million - $3 million
DUNS: 111597326
Minority Business Enterprise Small Business Enterprise

Our Story

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The 5 Diamond Mechanical name derives from the desire to provide the very best customer service while utilizing technologically advanced and time tested products, and materials for all applications and installations. After receiving a degree in HVAC and pursuing various trainings in controls and other applications, our President Carlos Martinez worked in the engineering department at San Diego’s only 5 Diamond Resort, The Grand Del Mar. This is where the principles of 5 Diamond service was inculcated in him and in time he acquired the skill set to provide seamless flawless service that sprung from a heart full of passion. Carlos relished his work duties with HVAC and more importantly he could see firsthand how his workmanship and manner of conveyance had a deep lasting impression on the ones he provided his services to. Carlos meditated on the possibility of having an HVAC company that delivered top of the line seamless polished service for the work trades. At the age of 21 years old, after receiving his contractors license Carlos started 5 Diamond Mechanical. A short time later, Carlos became business partners with Nick Mullins Vice President, Nick started in high school working for his uncle’s HVAC company. This where a strong root system of high quality workmanship and integrity were firmly established. Both these leaders together and their strong suits have created a team and a culture that has made 5 Diamond Mechanical a top performer in San Diego. The 5 Diamond Mechanical team is available and ready to serve you at your convenience.

5 Diamond Heating & Cooling has been listed in the Blue Book since 2018.

What We Do

Products/Services Relating to Air Conditioning Contractors
Products/Services Relating to Mechanical Contractors

Project Experience

Non-Union Prevailing Wages (Davis Bacon)
Service Sector:
Public Private
Project Types:
New Alterations/Renovations Interior Fit-Ups Service Work/Repairs
Education (K-12)
School / College / University
Fire / Police Station
Gas Station
Golf Course
Hospital / Nursing Home
Industrial Maintenance
Manufacturing Plant
Apartments & Condominiums
City / Town Hall
Office Building
Pre-Manufactured Structures
Terminal - Airport / Bus / Railroad
Church / Synagogue
Retail Store
Sewage / Water Treatment Plant
Jail / Prison
Theme Park
Parking Garage
Club House / Community Center
Mixed Use
Historic Preservation
Secure and Shielded Facilities
Storage Facility / Warehouse
Grocery Stores
Assisted Living
Single Family Residential
Design Build
Data Centers - Mission Critical
Auto Dealership / Service
Non-Building Construction
Athletic Field
Non-Residential Building
Animal Hospital / Kennel
Court House
Fitness Center
Medical Office
Post Office
Radio / Television Station
Residential Building
Tract Housing

Service Areas

Preferred Brands & Manufacturers

Mitsubishi Electric
Mitsubishi Electric
Goodman Air Conditioning & Heating
Goodman Air Conditioning & Heating
Nest Thermostats
Nest Thermostats

Associations & Memberships

Member of BBB (Better Business Bureau) A+ Rating BBB (Better Business Bureau) A+ Rating
Member of ISNetworld ISNetworld
Member of MBE (Minority Business Enterprise) MBE (Minority Business Enterprise)
Member of SBE (Small Business Enterprise) SBE (Small Business Enterprise)
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