Crawl Space and Basement Waterproofing in St. Louis, MO
Crawlspace Medic of St. Louis
Protect your health and your home with expert crawl space encapsulation, basement waterproofing, vapor barriers, and dehumidifier installs in St. Louis, MO.
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Trusted Waterproofing for St. Louis Homeowners
St. Louis, MO is known for its historic neighborhoods, beautiful brick homes, and diverse terrain—but beneath that charm, many homes face serious crawl space and basement moisture issues. Whether you live in South City, the Central West End, The Hill, or beyond, St. Louis homes are built on clay-rich soil that expands, shifts, and traps water—leading to structural damage, mold growth, and air quality concerns.
At Crawlspace and Basement Medic, we deliver customized waterproofing systems to match the unique needs of St. Louis homes. From early 1900s basements to newer builds on the city’s edges, our solutions include encapsulation, sump pumps, dehumidifiers, and repairs designed to protect your foundation and family’s health.
What’s under your home affects everything above it—let’s keep it dry and safe.
Crawlspace Medic of St. Louis
Address
8204 Exchange Way, St. Louis, MO 63144
Phone Number
Basement & Crawl Space Services in St. Louis
We offer comprehensive waterproofing and moisture control for both older and modern homes:
- Interior French drains and sump pump installation
- Wall and floor vapor barrier sealing
- Foundation crack repair and trench drain systems
- Exterior water redirection and grading improvements
- Built for the Midwest’s seasonal humidity
- Maintains RH below mold-prone levels
- Quiet, energy-efficient, and auto-draining
- Installed in both basements and crawl spaces
- Battery backup systems for reliability during storms
- Routed discharge lines protect your foundation
- Custom poly liners that block rising ground moisture
- Improves HVAC performance and indoor air quality
- Ideal for vented, brick-walled, or dirt-floor spaces
- Insulation removal and replacement
- Floor joist, beam, and pier reinforcement
- Subfloor leveling and sill plate stabilization
- Interior and exterior wall sealing
- Stops seepage, staining, and hydrostatic pressure
- Protects finished and unfinished basements
- 20-mil reinforced vapor barrier sealed floor-to-wall
- Sealing of vents, piers, and crawl access doors
- Dehumidifier integration for year-round humidity control
- Drainage matting and sump pump pairing
Serving Every Part of St. Louis
We serve all city neighborhoods and adjacent areas, including:
Why St. Louis Homeowners Choose Us
Historic & Modern Home Expertise
We tailor systems for every age and style of home
Air Quality is Priority
Moisture under your home becomes air inside it—we keep it healthy
Protect What Matters
Our systems defend your structure, flooring, and long-term investment
Clear Plans, No Pressure
Our inspections are honest, and our recommendations are always transparent
Do older St. Louis homes need crawl space or basement waterproofing?
Yes—many homes were built without proper vapor barriers or sump systems and suffer from long-term moisture damage.
Can I do one part of the system now, like just a vapor barrier?
Absolutely—we offer phased services that match your budget and timing.
Will encapsulation reduce heating and cooling costs?
Yes—sealing off moisture and controlling humidity makes your home more energy efficient.
How long does the installation take?
Most projects are completed in 2–4 days depending on the size and complexity.
Do you also serve nearby suburbs?
Yes—we serve the entire St. Louis region including Clayton, Webster Groves, University City, and beyond.