Want To Advance Your Career?

Servicing Southern California For 35+ Years

Commercial HVAC Estimator

Why Christian Brothers

Christian Brother’s Mechanical Services is one of the largest family owned commercial air conditioning companies in Southern California.  With over 250 dedicated employee’s, come see why our team is motivated to be the best! “A Great Place To Work” Is Our Reputation.


We believe training is key to success. We provide training in house and outside programs. This helps our people advance their skill and enhance their pay.


35+ Years of Business in Southern California.    Family Owned and Operated.

Fair Wages

We Strive For Competitive Pay & Always Aim To Pay Fairly. CBMS Encourages Self Growth & Recognize Our Employee’s Achievements.

Award Winning Safety

ABC STEP Award 2018-2019 Platinum Level and CAL/OSHA Golden Gate Recognition. 

Employee Benefits

We Offer 401k, Medical, Dental, Vision, Insurance Plans For Our Employee’s, and Paid Vacation,

Choosing The Right Company

We know how difficult it can be finding a place that you can call “Home”. We work with our employees, identify they’re goals, and give them the necessary tools to further they’re career. For over 35 years we have excelled in the industry by keeping up to date with the latest industry trends.


“Our core beliefs are reflected in our company name. Christian Brothers reflects the quality, integrity and service that we aspire to deliver.”

Donald Lemons



floor plans

Estimating Duties

The majority of our projects is new construction. We have multiple projects in all various locations all throughout southern California. Riverside, Los Angeles, San Bernadino, and Orange County is our primary location for new construction. We expect our estimators to sell over $5 million a year.

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Get In Touch With Us!

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11140 Thurston Lane, Mira Loma, CA 91752