Wet Basement Waterproofing Companies in Mercer Island, WA

We are a team of professionals specializing in helping you with all your waterproofing drain and foundation repairs.

Robbins and Co started business in 1952 relocating buildings for the construction of I5 and the development of the Denny Regrade project.

At TerraFirma, we understand that foundation cracks, wet crawlspaces, and musty basements are stressful. We offer a free onsite estimate for all work that you may need to be completed, and we will work with you.

Our waterproofing contractors are deeply experienced with a wide variety of issues and can provide residential waterproofing and exterior basement waterproofing services.

Our experts have specialized in basement waterproofing since 1983, handling interior and exterior drainage systems, sump pumps and water control.