Mares & Dow – General Home Contractors

The Professional Solution for Concrete Foundation Service in the San Francisco, Bay Area

Serving San Francisco and East Bay Since 1983

Ensure your concrete foundation receives expert care by choosing Mares & Dow Construction & Skylights for your next project. Our seasoned team offers a range of foundation services, from new foundation pouring to reliable foundation repair.

Start Off Your Property Right With Expert Foundation Construction

The quality of your property’s foundation can determine whether the next few decades are worry-free or filled with ongoing structural issues. A solid foundation prevents flooding, shifting, cracks, bowing, and other problems for years to come. For reliable results, you need a foundation construction company with a proven track record.


In the Bay Area, where earthquakes are common, foundations are especially crucial. Our team ensures your project is handled correctly from the beginning, meticulously planning your foundation pouring, executing it flawlessly, and providing expert waterproofing services.

Contractor General: Expert Home Renovation

Get the Foundation Repairs You Need Right Away

Living in the San Francisco Bay Area, we’re acutely aware of our region’s susceptibility to earthquakes. Despite experiencing major earthquakes in 1906 and 1989, the area continues to witness frequent minor tremors. This reality has spurred significant research by structural engineers, particularly focused on understanding concrete foundation failure. Through this research, the critical importance of studying the soil in which our foundations are placed has been underscored. The Bay Area features diverse soil types, ranging from coastal soils to the clay-rich hills of San Francisco and Oakland, and the rocky terrain of Mt. Tamalpais and Mt. Diablo. This comprehensive study has yielded valuable insights into foundation repair and installation.


One key finding is that a significant portion of foundations installed before 1960 were not designed to withstand moderate earthquakes or the effects of building on expansive clay, compressible fill soils, or improper drainage. In many cases, water plays a central role in expansive soil problems, as certain soil components swell or shrink with moisture fluctuations. If you’re noticing signs of foundation issues, it’s crucial to have experts like Mares & Dow Construction & Skylights assess the damage early to determine whether repairs are needed or if attention to the surrounding soil or drainage system is necessary.

Your Trusted Concrete Foundation Service Company

For over 40 years, Mares & Dow Construction & Skylights has been carrying out expert concrete foundation services throughout the Bay Area. Leave this critical job to trusted professionals and reach out for your estimate today.

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Concrete Foundation Service Areas

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Benefits of Going with Mares & Dow Construction & Skylights


Experience & Accreditations

Mares & Dow Construction & Skylights is certified and accredited by the best manufacturers in the industry. From Grip-Tite Foundation Systems, to James Hardie Siding, to VELUX Skylights, you can be sure to get the highest quality products for whatever your project.


Knowledge & Expertise

Serving the San Francisco Bay Area for over 40 years with quality general contracting, home remodeling, and skylight installation means you'll get the benefits of our expertise for every project.


Proven Customer Satisfaction

Maintaining a high level of customer satisfaction, we are proud to have provided our customers throughout the San Francisco Bay Area with quality construction and home improvement services for 40 years. With half of our new clients coming to us from referrals, it’s no secret that our customers/friends are truly pleased with the work we do.