24- Hr Service 855-283-4935

Commercial Mechanical Contractor

We specialize in commercial HVAC design, engineering, installation, and service.

Serving Southern California For Over 35 Years

We’re a premier commercial HVAC contractor serving businesses of all sizes across Southern California.

Service Available 24/7

Our commercial air conditioning service department is available to our clients 24 hours a day, 7 days a week.

All Of Your Facility Solutions Found In One Place

We’re your complete facility solution for industrial and commercial hvac contracting services

We're Hiring!

Contact us for commercial HVAC career opportunities.

Keep your business Safe

Commercial Air Purification System

covid-19 Relief

covid-19 Relief

  • Complies with New Laws

  • Helps eliminate Viruses, Pollutants & Contaminants
  • Installs in Any Commercial HVAC System
Christian Brothers logo


Christian Brothers Mechanical Supplies, Installs, and  Designs state of the art antivirus & Air cleaning solutions for your business.

  • Comply with NEw Law’s

  • Helps Eliminate Virus’s, Pollutants, & Contaminants
  • Installs in Any Commercial HVAC System

HVAC Services

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Design Build & Engineering

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Service & Maintenance

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Unit Replacement

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Mechanical Piping

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Energy Analysis

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Sheet Metal Fabrication

Christian Brothers team

About Us

Christian Brothers Mechanical Services, Inc. is a full-service commercial mechanical heating, ventilation, and air conditioning contractor. With more than 200 employees we are one of the largest regional HVAC companies, serving Los Angeles, Orange, San Diego, Riverside and San Bernardino counties.

Founded more than 30 years ago, Christian Brothers remains a family-owned company, committed to delivering superior mechanical and service solutions. We are proud of the relationships that we have built with our clients over the years, and in our MOD rate of .62 due to a focus on employee safety by our entire team.

Contact us today to see how we can assist you in your HVAC projects.

Projects – HVAC and Building Controls

commercial building projects
education and worship projects
retail and dealerships projects
multi-family & hospitality HVAC projects
medical building HVAC projects

24-Hour HVAC Service

Our service department is available 24-hours a day, 7 days a week for all commercial HVAC repairs. Our certified service techs are conveniently located across Southern California to quickly resolve any HVAC service need.

Associated Builders and Contractors logo
Air Conditioning Contractors of America logo
Associated General Contractors logo
Counties We Serve

Los Angeles
San Diego
San Bernardino

CA Contractor License 499547


Christian Brothers Mechanical Services Service Area

San Diego

San Bernadino

Copyright 2020 @ Christian Brothers, Inc. - All Rights Reserved

Christian Brothers Mechanical Services is OPEN as a essential service & taking extra precautions to serve you safely.

For information on HVAC Air Purification and how Christian Brothers can help your Commercial HVAC please email  service@cbhvac.com or call 951-903-5269