
Insulation Services in North Charleston, SC
Compare 24 insulation services contractors near you in North Charleston and surrounding area with an average rating of 4.8/5. 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


Spray Foam Insulation by Keith's Heating and Air

Extreme Spray Foam of Charleston
Easy Way Insulation

Insulate Carolina
Other Businesses in This Area
Affordable spray foam insulation of the carolina's
15 years onlineEnergy One America
~16 years onlineAtlantic 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
5.0Ticomex spray foam insulation
5.0Tidal Insulation & Coating
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 onlineSRI Gale Insulation
3.314½+ years onlineInsulation Services in Nearby SC Cities
Other Services in North Charleston
Insulation Services in North Charleston, SC
North Charleston insulation contractors in this directory cover central North Charleston and surrounding Charleston County. IECC Climate Zone 3A asks for R-38 attics. Most pre-2000 North Charleston homes have R-19 to R-30 of compressed batts — topping up runs $1.40-$2.20 per sq ft. Closed-cell foam in walls or under-roof runs $4.50-$7/sq ft at 2 inches.
Dominion Energy SC offers home-performance rebates. The 25C federal credit covers 30% up to $1,200/year. SC's humid summers make crawlspace encapsulation valuable.
Frequently Asked Questions
- What R-value should my NC attic have?
- IECC Climate Zone 3A asks for R-38 attics.
- Should I encapsulate my crawlspace?
- Often yes — SC humidity drives moisture into vented crawlspaces.
- Are there rebates?
- Dominion Energy home-performance rebates ($300-$2,000), 25C federal credit.
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NeedInstall helps connect customers with local installation professionals across North 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.