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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%
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 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

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

Yes, you can install insulation over ductwork, and doing so can save you money. Without insulation, the HVAC unit must work harder to force warm or cool air around the home, and once the air reaches the vent, it may not be the correct temperature. Insulating HVAC ducts makes your system work more efficiently, saving you money on heating and cooling bills.

An insulated garage door is a great long-term investment if it’s within your budget. They save energy and give the door year-round usability. In other words, the door pays for itself after a few nasty winters. Most modern garage doors already have a fair amount of insulation, so look into those options if you don’t feel comfortable splurging.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

Yes! Outdoor faucet covers work by enclosing the faucet with a thick, insulating material that will keep the faucet warmer than outdoor temperatures. They need to be sealed tightly against the house to work properly, though, so be sure to tighten the rubber strap or drawstring on the insulation cover to best protect your faucets.

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.