Spray Foam Insulation by Keith's Heating and Air
Verified Pro
2+ 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
Most pros respond within 2–24 hours
Verified Pro Installers
sprayfoamingsc.com
Taylor Locklear Drywall - Charleston, SC Drywall
Verified Pro
5½+ years online4.9(33)
Extreme Spray Foam of Charleston
Verified Pro
7½+ 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
5.01+ year onlineCharleston Spray Foam Insulation
5.05½+ years onlineFoam Tech Professionals, LLC
5.016½+ years onlineHomepro Solutions Crawlspace Sealing
5.0JWR Sales Co
5.0~27 years onlinePalmetto Foundation Services LLC
5.0Spray Foam Genie Charleston
5.0~4 years onlineThermolators - Spray Foam Insulation
5.0Charleston SC Spray foam LLC
4.9Palmetto Spray Foam Insulation
4.8~10 years onlineAffordable Spray Foam
4.7~15 years onlineCrawl Space Avengers
4.7Southern Industries Home Improvements
4.728+ 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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About Insulation Services in Charleston
Insulation services cover attic, wall, floor, and crawl space insulation using materials like fiberglass batts, blown-in cellulose, spray foam, and rigid board. Proper insulation reduces heating and cooling costs and improves comfort year-round.
Typical costs: Attic insulation runs $1,500–$4,000 for a typical home. Spray foam for a crawl space or basement is $2,000–$6,000. Whole-home insulation upgrades can be $5,000–$15,000.
Common projects include:
- Attic insulation upgrade
- Spray foam crawl space or basement
- Wall cavity insulation
- Weatherization and air sealing
- Garage insulation
Simple insulation upgrades in existing walls and attics usually don't require permits. If the work involves modifying structure or electrical, permits may apply.
Frequently Asked Questions
- How much does insulation services cost in Charleston?
- Blown-in attic insulation to bring an older home up to current R-value standards runs $1,500–$4,000. Spray foam insulation for a crawl space or rim joist is $2,000–$6,000. Many utility companies offer rebates for insulation upgrades — ask your installer about available incentives.
- How do I find a reliable insulation services contractor in Charleston?
- A good insulation contractor starts with an energy audit or at least an R-value assessment of your current insulation. They should recommend the right material for each area (spray foam for air sealing, blown-in for attics, batts for accessible wall cavities).
- Do I need a permit for insulation services in Charleston?
- Adding insulation to existing spaces (attic blow-in, wall injection) typically doesn't require a permit. If the project involves structural access, like opening walls, permits may be needed.
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.