We bring creativity and expertise to everything we do, as your Castro Valley roofing and waterproofing company.

Redefining Construction Solutions.

Our Story, as your Castro Valley Contractor

DE Group Roofing and Waterproofing Corporation partners with clients to take on their most complex challenges and pioneer innovative solutions that make a positive, lasting impact.

We are a family-owned and operated company, specializing in roofing and waterproofing alongside the fabrication, installation, maintenance of gutter & downspouts and more.

Castro Valley, California is a well-established East Bay community known for its hillside homes, scenic views, and strong sense of neighborhood pride. Located in Alameda County, Castro Valley offers a suburban atmosphere with convenient access to Oakland, San Francisco, and surrounding Bay Area cities.

DE Group proudly serves Castro Valley with professional roofing services for residential and commercial properties. From roof repairs and replacements to new construction and preventative maintenance, our team is experienced in working with a variety of roofing systems suited for hillside properties and diverse architectural styles.