Alliance Roofing Company, Inc.

Northern California’s Leading Commercial Roofing and Waterproofing Contractor

EST. 1986

Our Services

DIVISION 7 & 3

Expansion Joints to Caulking & Sealants

From Low Slope Roofing to Solar Roofs

ROOFING

From Waterproofing to Coatings

WATERPROOFING

24-HR Leak Response to Roof Maintenance

SERVICE DIVISION

Our 24-Hour Leak Response team is at your service 24/7

Call us anytime at (408) 261-2595 to connect with our on-call leak team! Up to your preference, we also have a leak request form to submit a leak.

  • Aerial view of a modern building with a geometric roof design, surrounded by greenery and a canal, set in an urban landscape with mountains in the background.

    Nvidia - Santa Clara, CA

  • Aerial view of a large academic campus with red-roofed buildings, courtyards, green spaces, and walkways.

    Stanford University, Graduate School of Business - Palo Alto, CA

  • Aerial view of modern office building with tiered, green rooftop gardens and surrounding landscape, under a clear blue sky.

    Google Caribbean - Sunnyvale, CA

  • Aerial view of a large, modern building with a unique roof design, surrounded by landscaped gardens and roads. The structure is characterized by its white, geometric roof patterns. The setting is a green, suburban area with other buildings and open fields visible.

    Google Charleston East - Mountain View, CA

Blach Construction logo, blue background with white text and design

“For more than 30 years, Alliance Roofing has been one of our best partners!  Alliance has consistently provided us with best-of-class responsiveness, service and quality!  Alliance delivers innovative roofing and waterproofing solutions to our complex and unique projects; we also appreciate their unwavering commitment to safety.  The Alliance team has gone out of their way to develop outstanding relationships with all our key folks, which makes working with them even easier.  We cannot recommend them higher as a business partner!”

Mike Blach - Chairman, Blach Construction

Three black horizontal lines with a blue line on top, resembling abstract bars or stripes on a white background.

“Alliance Roofing is a valued partner of Truebeck Construction. Alliance has always exceeded our expectations with the quality of their work and ability to solve complex problems.  Their team is top notch both in the field and in the office. We highly recommend their services to anyone looking for a reliable roofing/waterproofing contractor with the highest quality and integrity!”

David Becker - Co-Founder, Truebeck Construction