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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon35
    Verified insulation services reviews

Top-Rated Insulation pros in Port Royal - Updated Nov 2026

Avatar for Performance Energy
Performance Energy
4.3(
107
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Port Royal, SC and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"They had to come back for finish ups. Then they had to come back to blow in additional insulation, wrong amount blown the first time. The installers out a nail through an electric cable and it meant I had to call electric service people to replace IGF in the garage. I also had to have a freezer repaired because of the short. Insulation manager said he would pay for service calls, have yet to see the payment. Believe I will see the cooling and heating savings in the future but the company needs to be more careful overall."
blow in insulaiton
Insulation and sealing
Insulation and sealing
Insulation and sealing
pulling old insulation out

+12

Response time2 days
Response rate88%
34 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 Port Royal, 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

409 neighbors recently requested a quote
Recommended by92%of homeowners
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Insulation FAQs, answered by experts

Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.

While freezing pipes are less of a concern in warmer climates, pipe insulation can still be beneficial because it helps prevent condensation on cold water pipes, reducing the risk of moisture-related issues like mold growth. It also helps maintain water temperature, reducing the energy needed to heat and cool the water, which can ultimately lower your utility bills.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation. 

Most insulation lasts 15 to 20 years, but it really depends on the type of insulation. Spray foam is a permanent insulation material that can last up to 100 years. Fiberglass and cellulose typically settle, shift, or deteriorate around 15 years. Once your insulation reaches the 15-year mark, it's time to check it for signs of needing to be replaced.

The Port Royal, SC homeowners’ guide to insulation services

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