Crawl Space and Basement Waterproofing in Granite City, IL
Protect your health and your home with expert crawl space encapsulation, basement waterproofing, vapor barriers, and dehumidifier installs in Granite City, IL.
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Trusted Waterproofing for Granite City Homeowners
Granite City, IL is a proud part of the Metro East community, known for its historic neighborhoods, hardworking families, and proximity to the Mississippi River. But its location also puts homes at risk of excess moisture. With flat topography, clay soil, and aging foundations, many Granite City houses suffer from crawl space humidity, basement leaks, and structural stress.
At Crawlspace and Basement Medic, we help homeowners take back control of their indoor environment. Whether you’re near Nameoki Road, in Wilson Park, or along Route 3, our vapor barriers, sump systems, and dehumidifiers are designed to keep your foundation dry and your air safe—year-round.
Moisture doesn’t wait to be visible—it damages quietly. We stop it early.

Basement & Crawl Space Services in Granite City
We provide a full line of waterproofing, encapsulation, and repair services built for Granite City’s soil and structure types:
- Interior trench drain and French drain systems
- Sump pump installation with battery backup
- Wall and floor vapor barrier sealing
- Foundation sealing and crack repair
- Interior and exterior foundation wall sealing
- Stops seepage and hydrostatic pressure buildup
- Protects both finished and unfinished basement spaces
- 20-mil vapor barrier sealed floor-to-wall
- Sealing of crawl space vents, piers, and access doors
- Crawl space dehumidifier installation
- Drainage matting and integrated sump pump systems
- Optimized for Midwestern humidity and temperature swings
- Maintains RH below mold-prone levels
- Quiet, efficient, and automatically draining
- Installed in crawl spaces or basements
- Battery backup systems for outage protection
- Routed discharge lines to keep water away from your foundation
- Durable, custom-fit poly liners block rising ground moisture
- Ideal for vented, unfinished, or exposed crawl spaces
- Enhances energy efficiency and indoor comfort
- Insulation removal and replacement
- Reinforcement of sagging joists, beams, and piers
- Crawl space leveling and sub
Address
8204 Exchange Way, St. Louis, MO 63144
Phone Number
Serving Every Part of Granite City
We proudly serve all neighborhoods and surrounding areas, including:
Downtown Granite City
Where historic homes often require crawl space encapsulation and structural repair
Wilson Park Neighborhood
Where sump pumps and vapor barriers help protect finished basements
Pontoon Beach & Maryville Road
Where moisture collects due to flat grading and poor drainage
Route 3 & Niedringhaus Avenue Corridors
Where flood-prone areas require complete waterproofing systems
Why Granite City Homeowners Choose Us
Metro East Terrain Expertise
We know how Granite City's flat land and clay soils affect homes
Air Quality First
Moisture in your crawl space becomes air in your living space—we protect both
Lasting Value
Moisture damage destroys equity—our systems are built to stop it before it spreads
No Gimmicks, Just Solutions
We offer free, honest inspections and clear, pressure-free recommendations
Know the Signs of a Moisture Problem
- Musty or damp smells indoors
- Wet, sagging, or fallen insulation under your home
- Water stains, cracks, or mineral buildup on basement walls
- Cold, warped, or uneven floors
- Water pooling near the foundation or under porches
- Allergy flare-ups or increased humidity indoors
Do older homes in Downtown Granite City need crawl space encapsulation?
Yes—many have vented crawl spaces and poor insulation, making them vulnerable to moisture and mold.
Can I just get a dehumidifier or vapor barrier for now?
Absolutely—we offer phased systems that fit your home and your budget.
Will this reduce musty smells or indoor allergies?
Yes—our systems eliminate the root moisture issues that lead to air quality problems.
How long does a full waterproofing job take?
Most Granite City projects are completed in 2–4 days.
Do you serve nearby towns like Madison and Pontoon Beach?
Yes—we serve all of Madison County and the greater Metro East region.