Company Perspective

Commercial Mechanical Contractors in Southern California

Christian Brothers Mechanical Services was founded in 1985 by  Donald P. Lemons,  independently and family owned that serves all Southern California. As commercial mechanical contractors, Christian Brothers Mechanical is committed to client innovation and satisfaction.

What Makes us different than other Mechanical Contractors

Christian Brothers offers experience you can trust; we take pride in delivering excellence and reliability to every project.  With more than 300 employees and complete in-house capabilities, Christian Brothers provides a comprehensive approach to HVAC. As commercial mechanical contractors, Christian Brothers can help you implement HVAC projects and maintenance plans that are suitable for your needs and with systems that operate at peak efficiency.

An Experienced Commercial Mechanical Contractor

Christian Brothers Mechanical Services takes pride in building relationships with our clients; we believe that our achievements are reflected in our client’s satisfaction.  We strive to be the best HVAC mechanical company, with over 35 years of experience, innovative knowledge, and keen expertise, we pledge our commitment to deliver the best mechanical solutions. Learn more by calling 1-800-605-2247.


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