We provide the following commercial roofing services. 

Our service area covers San Jose, San Francisco, Oakland, Santa Rosa, Sacramento, and Stockton.

ACS is a trusted roofing contractor, with a quality people you can depend on to get the job done. If you have any roof problem, we can fix it. 

Single Ply Roofing Systems

Single-ply roofs are highly durable, and long-lived. Our preferred materials are TPO and PVC roofs. Our preferred manufacturers include FirestoneCarlisle, FiberTite, and Tremco.  Compare their upsides and downsides.  More about our preferred commercial roof systems »

Acrylic and Silicone Roof Coating

Environmentally friendly cool roof coatings extend your roof’s life, and are a good alternative to roof replacement. We install roof coatings by GE SiliconeAstec, and AlphaGuard Bio Liquid by TremcoWhy we recommend acrylic and silicone roof coating systems »

Roof Maintenance

Avoid costly leaks and interior damage. Keep your roof well-maintained and meet your warranty requirements.  More about our commercial roof maintenance program »


Keeping water out of your building can be challenging. We prevent water from leaking through parking structures, concrete decks, and below-grade walls with a variety of sealants. More about our commercial waterproofing services »

ACS did a great job on both the painting and the roof restoration!