Christian Brothers Mechanical Services, Inc.

We are a full-service commercial mechanical heating & cooling contractor providing exceptional HVAC Services to all of Southern California such as:

With more than 300 employees, we are one of the largest regional HVAC contractors serving Los Angeles, Orange, San Diego, Inland EmpireRiverside and San Bernardino counties.

Founded more than 35 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 our MOD rate of .56 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.

Commercial HVAC Services

Unit Replacement

Mechanical Piping

Sheet Metal Fabrication

Design Build & Engineering


Building Automation & Controls

Service & Maintenance

35 Years of Excellence

Christian Brothers Mechanical Services is one of the largest, family-owned commercial heating, ventilation and cooling contractors in Southern California. Our experience and depth of knowledge ensures you will receive the finest quality service available. Our technicians are factory trained with the expertise and ability to handle any system, no matter how complex.

Projects- Completed & Qualifications

medical commercial HVAC projects
multi family commercial HVAC projects
commercial/industrial HVAC projects
retail & dealership commercial HVAC projects
education & worship commercial HVAC projects

24-Hour Commercial HVAC Service

As heating and cooling contractors, 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.

Your Looking for an HVAC Job in California?

Do your goals and career direction line up with our job description? Visit our HVAC job listings board to see what positions are available. Apply now to work with Christian Brothers Mechanical Services!