roofing services you can count on

Serving the Greater Bay Area and Sacramento

Commercial, Industrial and Residential Roofing Contractor

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TOP Roofing by ACS

Our commercial roofing team comprises of highly trained and experienced roofing professionals using quality roofing materials. We provide commercial roof repair, maintenance and replacement. Contact us for a quote.


We provide comprehensive residential roofing services that prioritize quality, durability, and customer satisfaction. Contact us today for roof leak service, repair or roof replacement. 

TPO Single Ply

Over half of all new roofs are TPO. Cut your energy costs by an average of 25% and get a 20-year warranty. Here are 9 reasons TPO is a great choice and 3 reasons it isn’t »

Roof Coatings 

Protect your commercial and industrial roofing for 20 years and prevent business disruption with this cost-effective and sustainable solution. Get a cost-benefit analysis of the different types of roof coatings »

“I know that you’ll see it through. That’s why I have no trouble recommending you guys. Everyone is great when things go smoothly. The true test of character/quality is how someone responds to challenges.”

Tom Hastings
Long Time Customer

Need an Ally?

• Serving Hospitals, Schools, HOAs, Multi-Family Apartments, Industrial and Commercial Buildings

• We provide a full range of services including roof replacement, repair, coating, and maintenance.

• Family owned and operated

• 2nd Largest veteran-owned business in the Bay Area 

Allied Construction Services BBB Business Review



Need a quote? Call us at (925) 724-2324.

“This roof had thousands of lineal feet of details. Hundreds of feet that was curved, circular, transitions form flat to vertical, pipes, curbs, vents, expansion joints…no problems. It’s an awesome project and the ACS crew absolutely ROCKED this one.”

Dan Varvais
National Coatings Product and Technical Manager

Don't Replace Your Roof if you can Restore it.

• No tear off required which reduces install time and project cost.

• 20 year warranty available

• Can your roof’s life indefinitely

• Eco-Friendly

• Reduces energy costs 15 – 27%

• No Odors – Perfect for installation at multi-family apartment complexes and hospitals.

Call (925) 724-2324 to find out more.

“We cannot thank you enough for stepping in, on Tony’s recommendation and handling our newly coated roofing project in Menlo Park so smoothly and masterfully…We look forward to [indecipherable] and referring you without further reservation.”

Arnell Enterprises

featured projects


Sutter Health Novato
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Cypress Apartments
San Jose
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Sutter Hospital
San Francisco
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200,000+ Sq Ft Coating
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“We both were very impressed with the project. It had to be a very tough project because of the layout of the roofs, the fact people are living there and the project oversight with Irvine, ABB, etc.

Your foreman, Aurelio Garcia did a stand-up job and should be commended. Dan and I had to laugh as he brought his red pen and couldn’t find anything to mark up.”

Tom Absher
Building Envelope Technology Associates

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