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24-Hr Service 855-283-4935

Commercial Mechanical Contractor

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

Serving Southern California For Over 30 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.

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

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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

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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.
Call 855-283-4935.
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Counties We Serve
Los Angeles
San Diego
San Bernardino
CA Contractor License 499547
Copyright 2020 @ Christian Brothers, Inc. - All Rights Reserved