Basement Waterproofing Services in St. Louis, MO
Five kinds of basement work come up again and again in St. Louis, MO, and this page explains each in a few lines. Whatever suits your house, the request goes to one independent local contractor, who visits and writes up a price. The referral is free, and the site itself does no work.
Services at a Glance
Full basement waterproofing means a whole-basement system, most often an interior drain at the footing that runs to a sump. An exterior membrane requires digging along the outside of the wall, which costs more and is not always possible beside a neighbor's building. The page covers brick, limestone rubble, block and poured walls, along with two- and four-family flats where several units sit over one basement.
Basement leak repair targets a single entry point, like a pipe opening, a window well or a soft mortar joint. It also sets ordinary seepage apart from a combined-sewer backup and explains where MSD comes in.
Foundation crack repair weighs injection for poured concrete against tuckpointing for brick and stone, and describes settling over old fill or karst in plain, calm terms.
Sump pump installation walks through the pit, pump, check valve, battery backup and alarm, and why discharge water belongs away from the house rather than in the wastewater sewer. Anything tied into a drain needs a licensed plumber or drainlayer and a permit.
Basement drainage deals with water before it reaches the wall: gutters, downspouts, grading, French drains in clay soil and interior drain tile, plus the backflow valves and laterals that come up in an older sewer system.
Which Service Do You Need?
Knowing the right name isn't necessary. Pick the line closest to what you're seeing, and the contractor sorts out the details in person.
- Damp along several walls after storms. Start with full waterproofing, then read the drainage page.
- The same damp patch, storm after storm. Begin with the leak repair page.
- Soft or crumbling mortar in brick or stone. The crack repair page explains tuckpointing for older foundations.
- A sump that runs constantly or has died. The sump pump page explains what a replacement involves.
- Water pooling beside the house. Gutters, downspouts and grading, all on the drainage page, may be enough on their own.
- Water up through a floor drain. That is most likely a sewer backup, so report it to MSD's 24-hour line at (314) 768-6260.
Start With One Request
Use the short form to get started. One independent contractor will arrange a visit and leave a written estimate for you to weigh. Contractors may pay to advertise on this site, while you are never charged and never handed anything for sending a request.