Quality Behind the Name
HVAC
Since 1914, A.O. Reed has grown from a small, local plumbing company to one of the most prestigious commercial HVAC contractors in the nation. We provide sophisticated cost analysis and implement the latest HVAC technologies on each project. A.O. Reed offers HVAC maintenance plans to ensure your system continues to run efficiently. We are exceptionally proud of our contribution on LEED Silver-, Gold- and Platinum-rated projects.
Plumbing
Employing our vast experience and newest technologies, we produce commercial plumbing systems ranging from domestic plumbing to medical gas and high-purity laboratory systems.
A.O. Reed’s experience includes hospitals, research laboratories, universities, office buildings, convention centers, hotels, casinos, and other types of buildings. We are highly experienced in Design-Build, Design-Assist, and Plan-Spec project delivery methods. A.O. Reed’s staff of professionals are team players who are truly dedicated to the overall success and completion of our work.
Service
A.O. Reed strives to provide the highest quality service to our customers. To meet those expectations, we hire, develop, and advance our technicians. Our service team’s tenure averages over nine years; it is not unusual for some to be here over half of their lifetime. Our service technicians are versatile, well-trained craftsmen that serve to meet every customers’ unique set of expectations.
Our people and our processes are what differentiates us from our competition. We ensure each customer gets this type of personalized service. We view each customer as an opportunity to prove that A.O. Reed is the best Mechanical Contractor in the nation as we strive to achieve quality behind our name. Like our employees, once a customer works with A.O. Reed, they are a part of the team.
Process Piping
Our process piping division specializes in the design, engineering, fabrication, and installation of process and utility systems.
Serving the Pharmaceutical, Biotech, Food and Beverage Industries, we provide system engineering & installations to include complete hygienic and aseptic process systems. Process installations include USP Water and Water for Injection (WFI) Systems, Pure Steam, and Clean in Place (CIP) systems. In addition to our Process Piping capabilities, we have weld procedures that cover specialty alloys.
• Carbon Steel
• 304/ 316L
• AL6XN
• Hastelloy
• 2507 super duplex stainless
• Autonomous Orbital Welding
Sheet Metal, Plumbing, & Pipe Fabrication
Since the late 1960s, A.O. Reed’s sheet metal, plumbing, and pipe fitting departments have been an intricate part of our success. We take every opportunity to prefabricate our ductwork, pipes, and plumbing systems. This allows us to decrease installation times onsite, meet tighter schedules, and introduce optimal workflow in the field. By prefabricating at our shop, we are able to meet aggressive project schedules, eliminate waste, reduce risk of injury, and save our customers’ money.
Recent Projects & News at A.O. Reed
Locations
A.O. Reed proudly supports construction and service projects across Southern California. With fully equipped fabrication shops and offices in San Diego, Santa Ana, and Los Angeles, we’re strategically positioned to serve clients throughout the region. Our teams are ready to deliver expert support across all phases of a project—from pre-construction through completion.
By leveraging our extensive resources and regional presence, A.O. Reed is able to take on a wide variety of projects across Southern California. Whether it’s new construction, retrofits, or ongoing service work, we bring the experience, capacity, and local knowledge needed to ensure every project is a success.
SDSU Imperial Valley Sciences & Engineering Laboratories
“At A.O. Reed, they give me the tools and support to succeed. The company has trusted me to represent them to lead projects and labor.”
— an employee in Plumbing / Pipe Fitting

