Crawl Space and Basement Waterproofing in Mascoutah, IL
Protect your health and your home with expert crawl space encapsulation, basement waterproofing, vapor barriers, and dehumidifier installs in Mascoutah, IL.
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Trusted Waterproofing for Mascoutah Homeowners
Mascoutah, IL offers quiet, small-town living with the convenience of being near Scott Air Force Base and the Metro East. But under many homes in the area, moisture is a persistent issue. Whether from poorly vented crawl spaces, hydrostatic pressure in basements, or shifting clay soil, water intrusion leads to mold, sagging floors, and long-term structural damage.
At Crawlspace and Basement Medic, we help Mascoutah homeowners solve these problems for good. From modern builds to older homes along Main Street, we offer custom waterproofing systems designed to keep your foundation dry, your air clean, and your investment protected.
Under every well-kept home is a crawl space that shouldn’t be ignored.

Basement & Crawl Space Services in Mascoutah
We deliver complete crawl space and basement waterproofing solutions with long-term protection in mind:
- Interior trench drain and sump systems
- Wall vapor barrier installation
- Foundation sealing and crack repair
- Drainage redirection for finished and unfinished basements
- Full 20-mil vapor barrier sealed floor-to-wall
- Airtight sealing of crawl space vents and access points
- Dehumidifier installation to control indoor humidity
- Sump pump and drainage matting integration
- Wall sealing to stop seepage and hydrostatic pressure
- Protection for basements with brick, block, or concrete foundations
- Interior and exterior waterproofing systems available
- Ideal for local humidity and crawl space conditions
- Keeps RH under 60% year-round
- Quiet, energy-efficient, and auto-draining
- Installed in crawl spaces or basements
- Battery backup options available
- Routed discharge to protect foundation and yard slope
- Custom-fit poly liners prevent ground moisture intrusion
- Improves indoor air quality and insulation performance
- Essential for vented, dirt-floor crawl spaces
- Wet insulation removal and replacement
- Reinforce beams, joists, and sill plates
- Subfloor leveling and support system correction
Address
8204 Exchange Way, St. Louis, MO 63144
Phone Number
Serving Every Part of Mascoutah
We proudly serve all neighborhoods in and around Mascoutah, including:
Historic Downtown Mascoutah
Where older homes benefit from crawl space encapsulation and structural reinforcement
Main Street & North Railway Areas
Where moisture-prone basements need sump pump and barrier systems
Prairie View & Deer Creek
Where newer homes still face humidity issues and need crawl space air control
Scott Air Force Base Vicinity
Where military housing and rentals require fast, efficient waterproofing
Why Mascoutah Homeowners Choose Us
Solutions for Both Old and New Homes
We work with every type of foundation and crawl space design
Air Quality as a Priority
Your crawl space affects the air you breathe—we keep it clean and dry
Lasting Protection
Moisture damage is expensive—we stop it before it starts
No Pressure. Just Help.
Free inspections, honest assessments, and no gimmicks
Moisture Red Flags in Mascoutah Homes
- Musty or damp smells inside your home
- Sagging or wet insulation in your crawl space
- Water stains or mineral streaks on basement walls
- Uneven or cold floors
- Water pooling near your foundation or in low-lying yard areas
- Mold spots or persistent indoor allergies
Are homes near downtown more likely to need crawl space repair?
Yes—older homes in Mascoutah often have vented crawl spaces or outdated insulation that allows moisture buildup.
Absolutely—we offer standalone components or phased waterproofing plans.
Yes. We have minimally invasive options to preserve your living space.
Will this improve my home’s energy efficiency?
Yes—encapsulation reduces heat loss and improves HVAC performance.
How long does installation take?
Most Mascoutah-area projects are completed in 2–4 days.
Do you work with military families near Scott AFB?
Yes—we serve homes and rentals throughout Mascoutah and the base area.