Crawl Space Repair Contractors in St. Louis, MO
Compare 34 contractors in St. Louis.
Crawl Space Contractors in St. Louis

St. John Environmental Consulting, LLC
✓ VerifiedSt. John Environmental Consulting is a St. Louis based company that surveys commercial and residential buildings for asbestos, lead and mold.
Spray Foam Insulation St. Louis
✓ VerifiedProviding professional spray foam insulation installation services in St. Louis, MO, specializing in attics and crawl spaces. We offer various foam densities to create air-tight seals and improve energy efficiency for homes and businesses.

SERVPRO of Affton/Webster Groves
✓ VerifiedProviding 24/7 emergency restoration and cleaning services in St. Louis, MO, we specialize in water damage, fire damage, mold remediation, and storm cleanup for homes and businesses.

Jet Foundation Repair
✓ VerifiedJet is an engineer-led foundation repair company providing inspections and structural fixes. The company is employee-owned.

Restoration 1 of Central St. Louis
✓ VerifiedProviding emergency water, fire, and mold damage restoration services in Central St. Louis. We offer 24/7 cleanup, remediation, and reconstruction for issues like flooded basements, burst pipes, and crawl space encapsulation.

Midwest Restoration Pros LLC
✓ VerifiedProviding comprehensive water, fire, and mold damage restoration services in De Soto, MO and surrounding areas. Services include water extraction, mold remediation, fire damage cleanup, and crawl space solutions.
FAST HELP
✓ VerifiedFast Help is a local 24/7 restoration professional providing full-service emergency cleanup.

Claro - Complete Mold Remediation - St. Louis
✓ VerifiedClaro - Complete Mold Remediation provides mold inspection, testing, and whole-home mold remediation using patented dry-fog technology. They offer services that are family-safe and guaranteed for a full year.

St Louis Mold Remediation Solutions
✓ VerifiedSt Louis Mold Remediation Solutions provides expert mold removal services in St Louis, specializing in tailored solutions to address unique mold challenges.

AWA Environmental - Saint Louis Mold Inspectors
✓ VerifiedProviding expert mold, asbestos, and environmental hazard inspections in St. Louis, MO. Services include mycotoxin, VOC, and soot testing to identify indoor air quality issues and ensure property safety.

Koala Insulation of St. Louis
✓ VerifiedProviding comprehensive insulation services in St. Louis, MO, including spray foam, attic insulation, and crawl space encapsulation. We enhance home comfort and energy efficiency through expert air sealing and insulation solutions.
St. Louis Foundation Repair & Waterproofing
✓ VerifiedProviding comprehensive foundation repair, crawl space services, and waterproofing solutions in St. Louis, MO. Services include crack repair, encapsulation, vapor barrier installation, and basement waterproofing.

Mold Solutions
✓ VerifiedMold Solutions provides mold inspection, remediation, and prevention services. They have been serving the St Louis area since 2008.

West County Insulation
✓ VerifiedProviding comprehensive insulation services for St. Louis and St. Charles, MO homeowners and businesses. Services include attic, wall, and blown-in insulation installation and removal for new construction and retrofits.

Midwest Flood Restoration
✓ VerifiedProviding 24/7 water damage restoration in St. Louis and surrounding areas, we handle water extraction, drying, and complete property restoration for emergencies like flooding, burst pipes, and sewage damage.

Fred's Foundation Repair and Waterproofing
✓ VerifiedCrawl space encapsulation and waterproofing services for St. Louis homes, including vapor barriers, sump pumps, and structural repairs.

Thornburgh Insulation Inc
✓ VerifiedThornburgh Companies is a mechanical insulation contractor that has expanded into asbestos and lead abatement, painting, and firestopping services. They provide industrial, power, utility, and commercial insulation installations.

Superior Waterproofing & Restoration
✓ VerifiedSuperior Waterproofing is a business that provides waterproofing services.

Gateway Waterproofing & Restoration
✓ VerifiedWaterproofing and restoration services for St. Louis area homes and businesses. We are committed to expert craftsmanship and safety in all our projects.

Certified Waterproofing Inc.
✓ VerifiedCertified Waterproofing Inc. provides home waterproofing and repair services. They have been keeping homes healthy and dry since 1888.

E.S. Leonard Waterproofing
✓ VerifiedE.S. Leonard Contracting LLC is a small family company based in De Soto that provides foundation repair, tuckpointing, and foundation crack repair.

Crack Wizard
✓ VerifiedCrack Wizard provides foundation repair and waterproofing services.

SERVPRO of St. Louis Central and SERVPRO of Bridgeton / Florissant
✓ VerifiedWater, fire, mold, and disaster restoration services in St. Louis, MO, including construction and cleaning. We offer 24/7 emergency cleaning and repairs for residential and commercial properties.

HIGH & DRY foundation repair
✓ VerifiedFoundation repair and waterproofing services for homes in High Ridge and the Greater St. Louis area. Specializing in crack repair, bowed wall repair, basement piering, and waterproofing to address structural damage and water intrusion.

Crawlspace Medic of St. Louis
✓ VerifiedProviding crawl space encapsulation, basement waterproofing, and vapor barrier installation to protect St. Louis homes from moisture and mold. Services also include dehumidifier installation and sump pump systems.

Gateway Home Services
✓ VerifiedGateway Home Services offers AC, furnace, and handyman services in St. Louis, MO, with over 30 years of experience in property maintenance.

Ram Jack St. Louis
✓ VerifiedRam Jack St. Louis provides foundation repair and basement waterproofing services.

Bay Insulation of Missouri
✓ VerifiedBay Insulation of Missouri provides metal building insulation systems, vapor barriers, and liner systems in St. Louis, MO.

The Flood Team
✓ VerifiedWater damage cleanup and restoration specialists in St. Louis, MO, offering water extraction, structural drying, and mold remediation. Services also include drain cleaning and flooded basement restoration.

Foundation Recovery Systems
✓ VerifiedWaterproofing and foundation repair firm, plus concrete lifting services.

Woods Basement Systems
✓ VerifiedWoods Basement Systems is a basement waterproofing contractor serving the greater St. Louis area in Illinois and Missouri.
All Star & Roofing
✓ VerifiedAll Star Insulation & Roofing is a family owned and operated company serving the Saint Louis area that specializes in insulation and roofing services.

Insulation Pros
✓ VerifiedImprove your home's energy efficiency with professional insulation and air sealing services. Insulation Pros serves Wright City, MO, and surrounding areas to help make your home more comfortable and cost-effective.

Midwest Basement Tech
✓ VerifiedCrawl space and basement repair specialists offering waterproofing, encapsulation, and foundation repair services in Brighton, IL and surrounding areas. We provide moisture control and sump pump solutions.
St. Louis homeowners face common crawl space and foundation challenges driven by local soil and climate conditions. Moisture control, encapsulation, and structural repair are among the most-requested services.
What to Expect
Crawl space encapsulation in the St. Louis area typically ranges from $5,000–$15,000 depending on square footage and moisture severity. Foundation repair costs vary widely based on the scope of work. Get multiple quotes from verified contractors.
Coverage Areas
St. Louis-area contractors typically serve surrounding communities within a 30–50 mile radius.
Frequently Asked Questions
How much does crawl space encapsulation cost in St. Louis?
Crawl space encapsulation typically costs $3-$10 per sq ft, with full projects ranging from $3,000-$15,000. Costs depend on crawl space size and moisture severity. Contact contractors in St. Louis for a specific quote.
Do I need encapsulation or just a vapor barrier in St. Louis?
A vapor barrier alone covers the ground to reduce moisture but leaves walls and vents open. Full encapsulation seals the entire crawl space including walls, adds a dehumidifier, and seals vents for complete moisture control. A St. Louis contractor can inspect and recommend the right approach.
How long does crawl space repair take in St. Louis?
A basic vapor barrier installation takes 1-2 days. Full encapsulation typically takes 2-4 days. If structural or joist repair is needed, the project may take 3-7 days depending on the extent of damage.
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