Company Perspective

Mechanical Contractor Southern California

Christian Brothers Mechanical Services was founded in 1985 by Donald P. Lemons.  Mr. Lemons takes pride in his hands-on approach in providing a reliable, resourceful and first-class full-service HVAC commercial mechanical firm. His commitment to client innovation and satisfaction has brought Christian Brothers Mechanical Services to where it is today, an independently-owned company that serves all Southern California.

Mr. Lemons started his HVAC career as a field technician, and was later trained on Honeywell Controls. His commitment to continuing education and sharing his expertise has been key to contributing to our employees’ training and mentoring program, and our ability to retain outstanding technicians. Christian Brothers is operated as an open shop.

Christian Brothers offers experience you can trust; we take pride in delivering excellence and reliability to every project.  With more than 100 employees and complete in-house capabilities, Christian Brothers provides a comprehensive approach to your HVAC needs. 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.

Christian Brothers Mechanical Services, Inc. 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 30 years of experience, innovative knowledge, and keen expertise, we pledge our commitment to deliver the best mechanical solutions.


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