Mechanical Contractors Dedicated to Quality Workmanship

aboutA.O. Reed combines sophisticated engineering with innovative installation techniques to produce the best mechanical system for each project. Studying evolving energy demands to evaluate new products and systems, we stay on top of our industry’s technology so our clients will benefit from the most mechanically advanced systems available. These elements are what makes A.O. Reed Southern California’s leading large mechanical contractors.

We solve complex problems using expert knowledge and technical tools. We chart new territories and deliver results, even under pressure. In the process, we never lose sight of our commitment to exceed expectations, honor our commitments, and stand up for our principles. A.O. Reed aspires to be the finest full-service mechanical contractor—a company that creates real value for clients, employees, and community by delivering high-quality mechanical solutions.

Our 55,000-square-foot facility, on a three-acre site, includes our sheet metal and pipe fabrication facilities, service department, corporate offices, and one of Southern California’s most complete plumbing retail stores.


A Culture Based on Family

Despite being one of Southern California’s leading mechanical contractors, with 500+ employees, A.O. Reed has maintained the upbeat, family atmosphere that’s permeated our company since the very beginning. The positive energy results from working as a team to strive to be the very best.

A.O. Reed’s culture is based on always doing what’s right for customers and never walking away from a problem. Our management team is homegrown and more than half of our employees have been on the job for at least 10 years—so we have a strong sense of community and special “know how” that’s passed with passion from generation to generation. Our legacy is one of quality and innovation.

Focus on Safety

We have implemented meticulous safety and health management practices that address hazard prevention and control, environmental regulations, work site analysis, training, management commitment and worker involvement. We will relentlessly pursue the highest standard so we can send each of our employees home to their families every night, injury-free.

A.O. Reed has received numerous awards from organizations for the quality of the
projects we have completed, the commitment we have toward safety and the quality
and integrity of our company. A.O. Reed is proud of the projects that we completed
and also proud of the awards we have won. Our commitment to quality, safety,
integrity, excellence and customer satisfaction is evident in these awards!



Safety award for lost workday incident rate at least 25% below industry average; 2011, 2012, 2013



Safety award in the category of 500K to 1 million man-hours 2013



Recognition for participating in SMACNA’s safety excellence awards program 2012, 2013

Like any great story, our culture is passed on from one generation to the next by identifying leaders with shared values and our
longstanding commitment to professional mentorship. Longevity is rewarded through personal and professional growth. Our unwavering
work ethic and desire to be the best allows hundreds of families in Southern California to grow and flourish every single day.

David Clarkin


David has over 30 years of mechanical experience and after receiving his B.S. in Mechanical Engineering from San Diego State University, he started his career as a mechanical engineer designing HVAC and plumbing systems for a consulting firm.    Since joining A.O. Reed in 2003,  David spent 10 years as Vice President, was  promoted to Executive Vice President and finally, on January 1st, 2015 to President. His responsibilities included oversight of pre-construction and construction operations and is responsible for all departments at A.O. Reed.

His construction, design experience and oversight include project management, estimating, value engineering, managing pre-construction for large commercial projects made him a key player on numerous high profile technical projects, including Camp Pendleton Hospital, Scripps Cardiovascular Hospital, Sharp Hospital, Salk Institute, Disney Cars Land, Pacific Beacon High Rise, SAFC CGMP, and more.

David’s experience, understanding of the design process, construction, LEED certification, Lean Construction, and versatility has contributed to the continued success and growth of A.O. Reed.

He holds California State Contractors License A, B, C4, C20, C36, C43, C60 and HAZ, and is an active member of ASHRAE and ISPE.


"Our dedication to integrity and quality workmanship is unmatched in our industry."

Professional Trade Associations We Belong To