Spray Foam Insulation by Keith's Heating and Air
Verified Pro
2½+ years online5.0
Insulation Services in Charleston, SC
Compare 27 insulation services contractors near you in Charleston and surrounding area with an average rating of 4.6/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
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Verified Pro Installers
sprayfoamingsc.com
Taylor Locklear Drywall - Charleston, SC Drywall
Verified Pro
~6 years online4.9(33)
Extreme Spray Foam of Charleston
Verified Pro
~8 years online4.8
Insulate Carolina
Verified Pro
7 years online4.4(7)
Crawlspace ER
Verified Pro
5+ years online4.2(30)
Other Businesses in This Area
Affordable spray foam insulation of the carolina's
15 years onlineFoam Insulation Solutions LLC
Atlantic Spray Foam Charleston
5.01½+ years onlineCharleston Spray Foam Insulation
5.05½+ years onlineFoam Tech Professionals, LLC
5.0~17 years onlineHomepro Solutions Crawlspace Sealing
5.0JWR Sales Co
5.027+ years onlinePalmetto Foundation Services LLC
5.0Spray Foam Genie Charleston
5.04+ years onlineThermolators - Spray Foam Insulation
5.0Charleston SC Spray foam LLC
4.9Palmetto Spray Foam Insulation
4.810+ years onlineAffordable Spray Foam
4.715 years onlineCrawl Space Avengers
4.7Southern Industries Home Improvements
4.728½+ years onlineIBP Charleston
4.512½+ years onlineTicomex spray foam insulation
4.0SRI Gale Insulation
3.314½+ years onlineInsulation Services in Nearby SC Cities
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Insulation Services in Charleston, SC
Charleston SC insulation upgrades pay back fast given SCE&G rates and SC's heat-humidity. Most pre-1990 Charleston homes have R-19 to R-30 attics — well below the modern R-49+ target. Air sealing before insulation matters in older Historic District homes. SCE&G rebates available. NeedInstall connects you with Charleston insulation contractors who handle SCE&G paperwork, blower-door testing, and proper detailing for coastal humidity.
Charleston SC attic top-up to R-49+: $1,800-$4,500. Wall dense-pack: $4,500-$11,000 retrofit. Basement spray-foam: $4-$7 per board foot. SC requires a state contractor license. SCE&G rebates ($300-$1,500). Blower-door test ($300-$500) often required.
Frequently Asked Questions
- Worth on AC bills?
- Yes — SC year-round AC. Payback 3-6 years.
- SCE&G rebate?
- $300-$1,500 for qualifying upgrades.
- Coastal humidity?
- Air-sealing critical to prevent moisture migration.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Charleston and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.