Representatives of Commercial & Residential Building Products

Company History

Sierra Coast Products was founded in 1980 by Don Hansen to service the commercial and residential roofing industry. Located in Pleasanton, CA, Sierra Coast Products Inc., is an independent manufacturer representative and consulting group that services the Northern California and Northern Nevada areas.

Our representation provides sales, marketing, technical expertise and distribution services. We channel products through Distribution and work directly with Contractors, Architects, Consultants and Homeowners to provide technical support.

Our Team

Lucas Hansen and Josh Hansen have been involved with Sierra Coast Products and the roofing industry since 2002 working with numerous product manufacturers. Donovan Hoff joined Sierra Coast Products in 2009 and has worked in the industry since 2001.


We have expertise in all types of commercial and residential roofing and waterproofing products, sustainable construction practices and product installation.

In addition to marketing and sales support, we act as technical field consultants, provide training, product guidance, conduct roof evaluations, design assistance and develop specifications. We educate on how to utilize new products and systems and conduct installation demonstrations to achieve expected results.

Mission Statement

Our core values, quality, integrity, commitment and service excellence, reflect our commitment to your success. We strive for professionalism and consistent communication in every aspect of the services
we provide.

It is our mission to build long lasting relationships based on integrity and mutual respect with our customers. To exceed our customers’ expectations in quality and support by providing superior product offerings and services of exceptional value which allow them to gain a competitive advantage.

And to sustain our vision by seeking continuous learning and providing education regarding the application of new technologies and best building practices.

Our Products

Contact Us


Sierra Coast Products
4713 1st Street Suite 115
Pleasanton, CA 94566

Phone: 415-673-8700
Fax: 415-520-0480

Sales & Technical Consulting

Joshua Hansen

Lucas Hansen

Donovan Hoff