About Us

Veteran Owned Company Serving Greater Bay Area and Sacramento

Commercial & Industrial Roofing

Our Mission

Built on Integrity. Driven by Service. Grounded in Legacy.

At Allied Construction Services, we stand on a foundation poured by hard work, honor, and commitment. As a second-generation roofing company led by a U.S. Marine Corps veteran, our mission is simple but powerful:

To deliver exceptional roofing and construction solutions with integrity, reliability, and pride—every time.

We are craftsmen. We are problem solvers. We are people who show up, do the work, and stand behind it. With values rooted in North Dakota farm grit, Marine Corps discipline, and decades of hands-on experience, we believe in doing right by our customers and our team.

We treat people fairly, lead with humility, and build with purpose. Our crew is a family of motivated professionals serving Northern California—committed to quality, service, and long-term performance.

At the end of the day, we believe in being proud of what we’ve built for the clients we serve and the people we lead.

ALLIED CONSTRUCTION SERVICES
Where legacy meets leadership.

PROUD TO OFFER PREMIER ROOFING SOLUTIONS IN NORTHERN CALIFORNIA

Our reputation was built by specializing in the best roofing solutions available. We use the highest quality products from top manufacturers like Carlisle, Firestone, GE, Sika, Gaco, Tremco, FiberTite, National Coatings, and Astec.

Allied Construction Services

What Sets Us Apart

Partnership

At ACS, we don’t just serve customers, we build relationships. Expert craftsmanship is important, but customer service is the key to success.

We Deliver

You need a reliable roof that’s done right, on time, and within budget. Our certified team uses top-quality materials and a careful approach, delivering a roof—and a partnership—that lasts.

Expertise

With unmatched expertise, ACS delivers quality roofs through skilled craftsmanship, premium materials, and efficient silicone and acrylic coatings—offering minimal disruption, and a roof that stands the test of time.

Our Specializations Benefits You

TPO and PVC roofs are the most advanced commercial roofing systems on the market. They are cost-effective, environmentally friendly, and have the best warranties in the business. Their low odor makes them suitable for installation in sensitive environments such as schools or skilled nursing facilities.

Need a great value? Then silicone and acrylic roof coatings are no-brainers. You save 10-20% and basically get a new roof with a short install time and minimal disruptions.

Trust your roof to ACS and know it’s protected by the highest quality materials installed by our expert craftsmen.

Call us at (925) 724-2324 to get more information about the roof that’s right for you.

Featured Projects

TPO Single Ply Roofs

TPO is the most popular single ply membrane installed on commercial flat roofs. It is inexpensive, durable, great warranty, highly reflective, so it saves energy.

PVC Roofs

PVC Roofs are the Cadillac of Commercial Flat Roofs Systems. PVC roofs are the most mature of the synthetic roofing systems available for your commercial flat roof.

Roof Coating Systems

Acrylic and silicone-based roof coatings are the most popular materials used. Both are reflective, cost-effective, quiet installation, and eco friendly

Waterproofing

Allied Construction Services waterproofing expert protect your building from water infiltration. We protect your commercial real estate, from the basement to the roof.

Roofing & Construction Expert You Can Trust

Commitment

“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

Expertise

“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

Seamless

“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 referring you without further reservation.”

Arnell Enterprises