Since 1994, we have only represented a small number of the most reputable manufacturers in the industry to make sure we can devote the proper attention and time to their products and customers.


Our Team

Patrick Michael

pat@gsmrep.com / 714-469-7079

Patrick Michael has an engineering degree from Cal Poly Pomona and is a licensed general contractor. He has been involved in the construction industry since 1983 and brings over 30 years of experience to the building industry. 

Patrick has been involved in educating water and sewer operators at educational seminars such as AWWA, CWEA and Tri-State  events as well as individual water agencies and engineering firms in California and Arizona for several years.

Karin Tuerffs

karin@gsmrep.com / 714-505-9319

Karin has a B.S in Communications from Cal State Fullerton and worked in sales before joining GSM nearly twenty years ago. She handles many duties for GSM including quotes, sales and accounts payable.


Our Projects