Happy Family

About GSI Foundations

GSI was established in 2003 and although basement repair is our primary focus, we have extensive experience with all aspects of the rehab process. Realtors, investors, and homeowners have found that having us on their team has been a great advantage for winning clients, purchasing properties, or just taking care of the home they love.

Not all homes and investment properties demand the same type of repair, and bad basements can be a scary thing to encounter, especially for new investors or first time home buyers. GSI helps take that fear away with our investor-friendly approach and pricing.

Family time is very important to us at GSI. We enjoy helping families get past the stress of basement issues and back to what is important.

Our business was built on referrals from happy clients



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“I've worked with Dave Graf and GSI Foundations on many basement projects and they always come through without a doubt. Being a real estate investor we are always looking for the best people to work with and their timeliness, quality, and pricing are second to none. If you are having any basement issues, whether it's water in your basement, cracks in the walls, sump pump issues, or any other basement problems these are the guys to call. I recommend them to everyone I know.”

Mitch Ferraro