Commercial Roofing and Construction Experts | ACS | NorCal

About Allied Construction Services

…Proud to Offer Premier Roofing Solutions in Northern California

Sorry, we don’t do homes or residential work.

Allied Construction Services (ACS) provides commercial building and construction services

Allied Construction Services BBB Business Review

Member of the National Roofing Contractors Association

Since 2002, we’ve served commercial building owners and property managers throughout NorCal. Now we are the 2nd largest veteran owned business in the SF Bay Area.

As a family-owned business, we serve Northern California, including Antioch, Berkeley, San Jose, San Francisco, Oakland, Pleasanton, Santa Rosa, Sacramento, Santa RosaStockton, and Walnut Creek. If you need re-roofs, renovations or repairs, we are your trusted, one-stop-shop for all commercial roofing needs.

We encourage you to review our site’s thorough comparisons to find the best roofing solutions for your needs and budget.

Relationships & Roofing: What Matters to Us

At ACS, we don’t just serve customers, we build relationships. Expert craftsmanship is important, but customer service is the key to success. We nurture our relationships with hard work, honesty, and integrity. That’s why we are one of the best commercial roofing companies in the Bay Area!

What Our Customers Want (And We Deliver)

Installing asphalt shingles on an HOA Walnut Creek.

Our customers want superior roofing installations that are on time and on budget. We strive to exceed expectations, using the most durable and advanced roofing solutions on the market today. Our detail-oriented team of certified experts will complete your job in a timely manner using best practices. The end result? A high-quality roof and a working relationship that will last for decades.

When our customers need the job done right, they ask for ACS. Seriously.

Our Specializations Benefit You

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

White roof on Belair Grocery Store with 16 skylights
A TPO Roof for BelAir in Sacramento.

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.

Covid 19 Policy

Covid protocols are the new normal and that isn’t going to change in the foreseeable future. We want you to know that Allied Construction Services(ACS) takes this safety issue seriously. View our policy »

KTVU Channel 2 Interviews ACS President For Veteran’s Day

Rob Roth interviewed Jason Rittenbach, owner of the 2nd largest veteran-owned business in the Bay Area. Jason spoke about integrity and the leadership skills he learned in the Marines helped make Allied Construction Services successful.

Jobs – We’re Hiring

View our list of available jobs including Carpenter in Santa Rosa and Roofing Apprentice»

Frequently Asked Questions

This is a list of common questions customers have »

Our Location

We serve the greater Bay Area and Sacramento but our home office is located in Livermore, just off of 580, at the base of the Altamont Pass.