Compare 31 radon testing & mitigation contractors in Knoxville.
'58 Foundations & Waterproofing is a South Carolina-based foundation repair and crawl space repair contractor specializing in basement waterproofing, crawl space encapsulation, mold removal, and radon mitigation. They provide expert solutions to protect homes from moisture, structural damage, and indoor air quality issues.
RetroFoam of East Tennessee specializes in top-quality insulation solutions including RetroFoam Injection Foam, spray foam, fiberglass, and crawlspace insulation for homes across Knox County and surrounding areas. As a licensed general contractor with over 18 years of experience, they provide comprehensive home weatherization services to improve energy efficiency and comfort.
Trusted Waterproofing is a local basement waterproofing and crawl space repair expert serving Greater Knoxville. They install sub-floor drainage systems and encapsulation solutions to solve water problems and improve air quality.
East TN Spray Foam Insulation provides spray foam insulation services for residential and commercial properties in the Knoxville area, helping customers reduce energy costs through superior insulation solutions.
RestoPros of Knoxville provides 24/7 emergency water damage, fire and smoke damage, mold remediation, and storm damage restoration services for residential and commercial properties.
Mold Drs. USA is Knoxville's leading authority on residential and commercial mold removal, mold remediation, and crawlspace waterproofing and encapsulation. They provide 24/7 water damage, fire, and mold restoration services with rapid response.
USS Pleasant View is a foundation repair and waterproofing company serving residential and commercial properties throughout Middle Tennessee and surrounding regions. They specialize in crawl space encapsulation, basement waterproofing, foundation repair, and structural solutions to protect homes and businesses from water damage and structural issues.
Independent Restoration Services provides 24/7 emergency restoration for fire damage, water damage, mold remediation, and structural repairs for homes and businesses. They offer comprehensive damage assessment, insurance claim assistance, and complete restoration services.
Accu-Coat provides spray polyurethane foam (SPF) insulation and conventional insulation services for residential, commercial, and agricultural properties. They serve home builders, general contractors, and building owners throughout Tennessee and the southeastern United States.
Alpha Insulation Inc. is a Knoxville, TN-based insulation contractor specializing in spray foam, fiberglass, and blown-in insulation for residential and commercial properties to improve energy efficiency and home comfort.
Guardian Foundation Repair is a professional foundation contractor serving Tennessee that provides comprehensive foundation repair, crawl space repair, basement waterproofing, and structural repair services.
Master Foundation and Crawl Space Repair provides basement waterproofing, crawl space repair, and foundation repair services to East Tennessee and surrounding regions. They install patented products to create dry, healthy crawl spaces and basements.
Mold Masters is an East Tennessee-based mold removal and remediation company offering professional inspections, mold cleanup, and water damage services for residential and commercial properties.
Concrete Solution MTZ is an experienced concrete contractor serving the Knoxville, TN area with expert repair and construction services for driveways, foundations, sidewalks, and commercial projects.
Koala Insulation of Greater Knoxville is a locally owned and operated insulation contractor specializing in professional insulation installation, crawl space encapsulation, and energy efficiency solutions for residential and commercial properties.
USA Insulation of Knoxville is a leading insulation contractor providing spray foam, blown-in attic insulation, injection wall foam, and air sealing services to improve home energy efficiency and comfort.
Home Comfort Solutions provides heating, cooling, and retrofit insulation services in Knoxville and East Tennessee. They specialize in HVAC repair, replacement, and spray foam insulation to improve home comfort and energy efficiency.
Ram Jack Eastern Tennessee is a foundation repair contractor serving Eastern Tennessee with engineered solutions for foundation issues, concrete lifting, basement waterproofing, and structural support using proven repair systems.
Crawl Space Ninja specializes in crawl space encapsulation, basement, and foundation repair solutions for Nashville homeowners. They provide comprehensive services to address moisture, mold, structural damage, and air quality issues caused by Nashville's humid climate and soil conditions.
SERVPRO is a 24/7 restoration and cleaning company serving Knoxville, TN, specializing in water damage, fire damage, mold remediation, and storm recovery with full-service cleanup and construction support.
PuroClean of South Knoxville provides 24/7 water damage restoration, fire damage restoration, mold removal, and biohazard cleanup services for residential and commercial properties in the Knoxville area.
American Standard Foundation Repair is a full-service foundation and crawl space repair contractor specializing in foundation lifting, encapsulation, waterproofing, and water management across the Mid-South region. They serve residential and commercial clients with structural repair, moisture control, and concrete lifting services.
Basement waterproofing and foundation repair experts serving East Tennessee and Southwest Virginia since 1978. They provide permanent solutions for wet basements, crawl space issues, and foundation problems using patented waterproofing systems and structural repair techniques.
Forever Guard provides crawl space encapsulation, basement waterproofing, and foundation repair services. The owner personally inspects every home to deliver customized, long-term solutions using professional-grade materials.
Patriot Restoration provides 24/7 emergency disaster restoration services including water damage, fire damage, smoke damage, and sewage cleanup across Knoxville and East Tennessee. They are IICRC-certified and locally owned, offering rapid response and full-service restoration.
Ready Now Restoration is a water restoration company specializing in comprehensive damage restoration services including water, fire, mold, and storm damage. They provide prompt, reliable solutions with a focus on restoring homes and rebuilding clients' peace of mind.
American Foundation & Waterproofing provides foundation repair, basement waterproofing, and crawl space repair solutions for residential and commercial properties. They are an affiliated dealer for Foundation Supportworks, Inc., specializing in structural repair and wet space remediation.
Knoxville 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.
Crawl space encapsulation in the Knoxville 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.
Knoxville-area contractors typically serve surrounding communities within a 30–50 mile radius.
The national average for radon mitigation is around $1,200, with most systems costing $800–$2,500. Get quotes from contractors above for accurate local pricing in Knoxville.
Radon levels vary by neighborhood and even by home. The only way to know your home’s radon level is to test. The EPA recommends testing every home, regardless of geographic zone. If your home tests at or above 4 pCi/L, mitigation is recommended.
Yes. The EPA and most real estate professionals recommend radon testing during every home purchase. Many states require radon disclosure at sale. A short-term professional test (48–96 hours) is standard during the inspection period. If levels are elevated, mitigation can often be negotiated as a seller concession.
Look for contractors with NRPP or NRSB certification — these are the national credentials recognized by the EPA. Ask about their specific system design, warranty terms, and whether they include a post-mitigation re-test. Get at least 2–3 quotes.
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