Foundation & basement waterproofing in St. Louis City, MO
St. Louis City is built mostly of brick: two-family flats, row houses and single homes, much of it from before World War II. Plaster walls, limestone and brick foundations, and low-slope roofs behind parapet walls are common.
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What we see in St. Louis City
- Limestone and brick foundations this old commonly seep through worn mortar joints. Repointing and better drainage often last longer than paint-on sealers.
- Homes sit close together on narrow lots, so digging along the outside wall can be limited. Ask how the crew will reach the wall and what they'll do from inside instead.
- Old clay downspout and drain lines can collapse underground and send roof water straight to the basement wall.
Questions to ask a foundation & basement waterproofing contractor
- What's causing the problem, and how does your fix address that cause?
- Do you recommend an independent structural engineer's evaluation?
- Which cracks are cosmetic and which are structural?
- What does the warranty cover, for how long, and does it transfer to a buyer?
- Will finished walls or flooring need to come out?
- Are you licensed where required and insured?