The Best Insulation Contractors in North Charleston, SC

Compare the highest-rated insulation professionals in North Charleston, South Carolina. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Koala Insulation of Charleston

4.8
(150 reviews)
Verified

A highly-rated, modern insulation contractor known for its focus on energy efficiency and customer education. They specialize in both residential and commercial projects, offering a comprehensive range of insulation solutions including advanced air sealing techniques. They are recognized for their transparent quoting process and knowledge of modern materials.

2189 Ashley Phosphate Rd, North Charleston, SC 29406

Specialties & Features

Blown-in insulation
Spray foam insulation
Air sealing services

Business Information

Years in Business:5 years
Licensed:Yes
Insured:Yes
#2

Insulation USA

4.7
(200 reviews)
Verified

A well-established local contractor with a strong presence across the Lowcountry. They have a long track record of handling everything from new construction to retrofit projects. Their expertise in handling older homes in the Charleston area, combined with their insulation removal services, makes them a go-to for comprehensive home upgrades.

4644 Corporate Rd, North Charleston, SC 29405

Specialties & Features

Insulation removal and replacement
Attic insulation installation
Crawl space insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Lowcountry Energy Solutions

4.9
(80 reviews)
Verified

While based in a nearby suburb, this provider is a premier specialist for high-performance homes in the North Charleston area. They focus heavily on building science and whole-home energy efficiency. Their services are often integrated, combining insulation with advanced air sealing and ventilation for optimal performance, making them a top choice for homeowners seeking maximum energy savings and comfort.

1101 W Enterprise Ln, Ladson, SC 29456 (Serves North Charleston)

Specialties & Features

Energy efficiency audits
Spray foam insulation
Basement and crawl space encapsulation

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in North Charleston

** The insulation market in North Charleston is robust and competitive, driven by the region's hot, humid climate and high humidity levels. Quality service providers understand that effective insulation must be paired with comprehensive air sealing to manage moisture, prevent mold, and improve HVAC efficiency. The market consists of a mix of long-standing local companies and newer, specialized franchises. The average quality is high among the top-tier contractors, who are well-versed in local building codes and the specific challenges of the coastal South Carolina environment, such as hurricane building standards and termite-resistant installation practices. Competition is strong, which benefits consumers through competitive pricing and a focus on customer service. Typical pricing varies significantly based on the project scope and material. As a general guide: * **Blown-in Attic Insulation:** $1,500 - $3,500 * **Spray Foam Insulation (closed-cell):** $1.50 - $3.00 per board foot * **Crawl Space Encapsulation:** $3,000 - $8,000+ Many reputable companies offer free, no-obligation energy audits or inspections, which can also identify potential rebates from local utilities like Dominion Energy.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with North Charleston regulations and climate

Frequently Asked Questions About Insulation in North Charleston

Get answers to common questions about insulation services in North Charleston, South Carolina.

1What type of insulation is most effective for our hot, humid North Charleston climate?

For our climate, spray foam insulation (especially closed-cell) is highly effective because it provides a superior air and moisture barrier, which is critical for managing humidity and preventing mold. However, blown-in cellulose or fiberglass in attics is also common and cost-effective. The best choice depends on your home's structure, budget, and specific air-sealing needs to combat our long, muggy summers.

2How much does insulation installation typically cost for a home in North Charleston?

Costs vary widely based on home size, material, and area insulated (attic, walls, crawl space). For a typical attic project in North Charleston, homeowners might invest between $1,500 to $4,500. Local factors like high humidity can necessitate premium moisture-resistant materials, impacting price. Always get multiple itemized quotes from local contractors to compare scope and cost accurately.

3When is the best time of year to add or upgrade insulation in the Lowcountry?

The ideal times are late fall and early spring (October-November and March-April). These periods offer milder temperatures, making it more comfortable for contractors to work in your attic and allowing for proper material curing. It also prepares your home before the peak summer heat and humidity arrive, ensuring your AC runs efficiently when you need it most.

4Are there specific local building codes or considerations for insulation in North Charleston?

Yes, North Charleston follows the South Carolina Residential Building Code, which includes specific R-value requirements for insulation in different parts of the home. A critical local consideration is properly insulating and ventilating crawl spaces to manage the high groundwater table and humidity, preventing moisture damage and mold. A reputable local installer will be familiar with these codes and best practices.

5How do I choose a reliable insulation contractor in the North Charleston area?

Look for licensed, insured contractors with specific experience in the humid Southeastern climate. Ask for local references, verify they perform a thorough energy audit or assessment, and ensure they address air sealing—a must for our area. Check for memberships in local associations and ask about their experience with common local issues like insulating historic homes or managing crawl space moisture.