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Call Us Today 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 (HVAC) contractor located in Southern California. We serve Los Angeles, Orange, San Diego, Riverside and San Bernardino counties.

Founded more than 30 years ago, Christian Brothers has attained decades of experience, knowledge, and expertise. As a family-owned company we pledge our commitment to deliver superior mechanical and service solutions. We take pride in building relationships with our clients and believe that our success is reflected in our achievements and in our clients’ satisfaction.

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


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24-Hour Service

Christian Brother’s service department is available 24-hours a day, 7 days a week for all commercial HVAC repairs. Its certified service techs are conveniently located across Southern California to quickly resolve any HVAC service need.
Call 855-283-4935.
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11140 Thurston Lane
Mira Loma, CA 91752
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To schedule a Service Appointment  email us at
Counties We Serve
Los Angeles
San Diego
San Bernardino
CA Contractor License 499547
Copyright 2018 @ Christian Brothers, Inc. - All Rights Reserved