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Top-Rated Insulation pros in Coosawhatchie - Updated Nov 2026

Avatar for Carolina Energy Conservation, LLC
Carolina Energy Conservation, LLC
4.7(
96
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Coosawhatchie, SC and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"I called Carolina Energy Conservation to have some new insulation put in my attic. The estimater came out within a few days of the phone call, and I received a detailed e-mail about what to expect. Matt gave me a good run down of what I needed to make my upstairs floor more comfortable. He called ahead of time, was on time, and was very professional. The estimate was for 4,000 board ft of insulation, 800 sq ft of radiant barrier installed, and an attic tent/hatch. Total cost was about $1600. They asked for a down payment of 30% up front, which I paid. Matt told me I would recieve a call to schedule the work within 1-2 business days. That never happened. After 1 week I called and spoke with Mary, who informed me their office manager who does schedules was out sick the previous week. She assured me he would call me back to setup a time for the work to be done. That never happened either. Fast forward another week. I called a 2nd time, and finally got an apointment setup for the following week. The two guys they sent to do the job were friendly and professional. After a few hours they let me inspect the work, and it was completed to my satisfaction. I normally have to set my AC to 73-74 in the summer to keep my upstairs comfortable, and the HVAC turns on quite often. Now I can set it to 76-77 and it remains comfortable, and the HVAC doesn't run as often. All in all I am happy with the overall experience, guess they just got hung up on scheduling."
Sprayfoam Insulation
Solatube in Charleston
Sprayfoam Insulation
Solatube in Charleston
Detached Panel

+17

Response time1 day
16 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Performance Energy
Performance Energy
4.3(
107
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Coosawhatchie, SC and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"They are the answer to lower energy costs and better comfort. In my area, home builders applied minimum standards when it came to insulation. Performance Energy fixed it and made it right. We could tell the difference overnight. Plus, they file all gov't rebates for you. Very grateful."
blow in insulaiton
Insulation and sealing
Insulation and sealing
Insulation and sealing
pulling old insulation out

+12

Response time2 days
Response rate88%
30 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
410
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Coosawhatchie, SC and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

Elevate your home with Home Genius Exteriors, setting the standard in Charleston by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It's time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing

+53

437 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Healthy-Crawl Space
Healthy-Crawl Space
4.7(
68
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Coosawhatchie, SC and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"Awesome experience. Purchased home with open crawl space that was deteriorated with hanging insulation, and breeding ground for rodents and waste. Researched crawl space options and interviewed several companies to compare. Greg was honest, informative and provided an option that encapsulated the raised crawl space, complete with dehumidifier and thick vapor barrier. He promised to come by annually to check and make any necessary adjustments and stood by his word - we had the project completed in 2015 and he came back in 2016 adding some sealer to small gaps that occured and will be scheduled him again to return soon for 2017 service. VERY happy we completed - the house smells much better (they disinfected underneath and spent time ensuring joists were clean), air quality and comfort level is greater and greater peace of mind with rodent exclusion. Would HIGHLY recommend Greg and his crew"
Basement Waterproofing Project
Basement Waterproofing Project
Basement Waterproofing Project
Basement Waterproofing Project
Additional Photos

+6

Recommended by98%of homeowners
Showing 1-10 of 27
Insulation FAQs, answered by experts

The best R-value for home insulation depends on where you live and where you’re installing the insulation. Your climate zone plays the biggest role in determining the correct R-value, so be sure to know which zone you live in when determining the R-value you need.

Yes, you need a 1.5-inch to 2-inch air gap in a cathedral ceiling to allow proper air flow and prevent cathedral ceiling venting problems. This amount of airspace allows warm, moist air to properly leave your ceiling to avoid moisture build-up and other issues that put your home at risk. You can also add an air vent for extra air flow.

Air sealing isn't necessary for attic insulation, but it's incredibly helpful since it can help you identify and patch any existing air leaks. Failing to find these leaks before adding insulation can render your insulation less effective, leading to higher energy bills and potentially costly repairs down the line.

Natural fiber batts and spray foam insulation both work great for soundproofing. Newer materials, such as hemp batts, are more expensive but more effective for insulation and sound blocking. They are also more sustainable. There is also a professional system called Blow-In Blanket Insulation (BIBS) that is soundproof and moisture-resistant. However, BIBS must be installed professionally and can be a costly investment.

In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s license lookup tool to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.

The Coosawhatchie, SC homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.