L.R. Cowan Concrete

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2222 West Williams Dr.
Phoenix, Arizona 85027

(602) 271-0331

Team Members

L.R. Cowan Concrete is a 50% employee-owned company. This personal investment of each employee promotes a unique outlook and level of interest in each and every project.

Leonard Cowan

Leonard R. Cowan – President
Leonard has spent his entire life in Arizona. His construction career began in the valley with a large local concrete sub-contractor. After 10 years of experience, he founded L.R. Cowan Concrete, and promoted it into the successful company it is today. Leonard continues to act in an advisory capacity, makes frequent trips to the jobsites, and chairs monthly meeting with all key administrative and field personnel. He is the heart of L.R. Cowan Concrete.



Sandy Cowan
Sandy Cowan – Operations Manager
An Arizona native, Sandy started working for L.R. Cowan Concrete in 1985. She oversees all general office functions, does all project budgets and billings, and acts as a liaison with the owners administrative representatives, general contractors, insurance companies and subcontractor/suppliers. She is a key figure in the administrative core of L.R. Cowan Concrete.

Larry Norman
Larry Norman – Project Manager/Chief Estimator
Even before receiving his Masters Degree in Construction Engineering from Arizona State University in 1992, Larry began his construction career with a local landscape company and other general contractors. He came to L.R. Cowan in 1991 as an estimating assistant. Now, in addition to being the Chief Estimator and our Project Manager, he oversees the production process, including procurement, submittals, shop drawings, RFI generation. Larry is the primary contact for changes and updates on current projects. His experience in design engineering and design-build projects gives L.R. Cowan Concrete the opportunity to expand its horizons and create a limitless future.

Billy Cowan

William “Billy” Cowan – Superintendent
Another Arizona native, Billy has spent his entire career in the construction industry. He started working for L.R. Cowan in 1993 as a carpenter/leadman. He is now our General Superintendent, and oversees all aspects of the field. Billy’s ability to manage and effectively coordinate the field workforce affords our company the best possible use of manpower, which in turn provides our customers with the highest quality product and maximum savings, even in the tightest timeframes.

Adam Sarver
Adam Sarver – Estimator
After receiving his degree from Arizona State University in 2004, Adam started estimating for L.R. Cowan. By providing take-off’s using an on-screen format, he has provided our customers with accurate conceptual budget numbers and hard bids, and has expanded his efforts to include value engineering suggestions to save both time and money. His dedication and energy have proven him to be a great asset to L.R. Cowan.

Janet Ripper Janet Ripper – Controller
Janet's career in construction accounting in Arizona began many years before receiving her degree from Arizona State University in 1982. She brought a wealth of experience to L.R. Cowan in 1999, and provided us with new and innovative financial systems. Her management of our accounting functions has kept us on track and up to the minute in our industry.

L.R. Cowan Concrete is very proud of our Field Management Team of 17 dynamic men, whose combined industry experience exceeds 435 years, and whose average tenure with L.R. Cowan is over 13 years. This group represents hands-on experience in any type of concrete application, from footings to highly detailed architectural concrete construction.