R.J. Daum Construction Company, a leading builder of California’s commercial facilities for over 70 years, is proud to be a Disabled Veteran Business Enterprise that delivers superior General Contracting Services and Management, which is derived from our experience in hard-bid, negotiated, and Design/Build projects. Strong, privately owned, with an experienced management staff, R.J. Daum currently employs more than 120 construction professionals.  Our employee base averages more than 10 years with the company, with many 2nd and 3rd generations making up our family of employees.  Our established reputation has resulted in trade-contractor responsiveness and loyalty that improves trade-coverage and competitiveness on bid day.

Ranked number 57 in McGraw Hill Construction’s “California Construction” magazine in April 2007, R. J. Daum Construction Company has also been ranked number 13 in McGraw Hill Construction’s “ENR” magazine’s Top 20 Telecommunications Contractors, published in May 2003. Our long term relationship with our clients and our large base of suppliers and subcontractors have certainly added to our success, but the dedicated employees of R. J. Daum Construction Company are the key to our staying one of California’s Top Contractors.

We are proud members of the Associated General Contractors of America.

The Associated General Contractors of America (AGC)
AGC is dedicated to improving the construction industry daily by educating the industry to employ the finest skills, promoting use of the latest technology and advocating building the best quality projects for owners—public and private. AGC is committed to three tenets of industry advancement and opportunity: Skill, Integrity, and Responsibility.
What We Do

R. J. Daum Construction is experienced in such projects as Educational Institutions, Healthcare Facilities, Fire & Police Stations, Correctional Institutions, Parking Structures, Telecommunication and other Public Utility Facilities.  In addition to our General Contracting services, R. J. Daum Construction Company is a leading provider of Structural Concrete Services for Southern California.

We currently carry an “A” Engineering License, a “B” General Building Contractors License in the states of California and Nevada, a “B-01” General Commercial Contractor License in Arizona, as well as a “C8” Concrete License in California. 


Our Locations

R.J. Daum Construction Company, with offices located in Orange and San Diego Counties, has been serving Southern California and Nevada since our inception.

Garden Grove Office
Corporate Headquarters
11581 Monarch St.
Garden Grove, CA 92841
(714) 894-4300
(714) 894-4449
San Diego Office
Regional Office
7562 Trade Street
San Diego, CA 92121
(858) 621-8750
(858) 621-8756