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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%
36 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

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

Spray foam insulation doesn’t do well around heat sources. Therefore, You can use spray foam insulation to seal around HVAC boots that penetrate through the drywalls or around where wrapped ducts connect to the boots, but we don’t recommend using spray foam insulation to encapsulate your air ducts. Spray foam insulation on air ducts is also less effective compared to duct wraps.

To cover your HVAC ducts and air vents during construction, use plastic sheets or drop cloths secured with painter's tape. Be sure to cover all supply vents on your floors and walls, as well as the larger HVAC return vent, which is typically on the ceiling. While canvas drop cloths can also be used, they may not catch all the fine dust. It is crucial to shut off your HVAC system or at least the zone where construction is happening. Running the system with vents sealed can put significant strain on the blower motor and air handler. For additional dust containment, you can also hang plastic sheets over doorways to separate the construction area from the rest of your home.

The most affordable way to insulate a garage involves choosing cost-effective materials like fiberglass, which comes in batts or rolls and is relatively easy to install. You can often install this type of insulation without needing to add drywall, which helps reduce costs. While a DIY approach might seem cheapest, hiring a professional installer can be highly cost-effective. Experts can accurately determine your garage's specific insulation needs and ensure the best results for your investment, often using batt insulation for the bulk of the project.

Your house may be cold even if the heat is on because of bad insulation, gaps in doors, small holes pulling hot air from the home, or excess humidity. The heater itself might be malfunctioning. For this problem, you’d need to talk to an HVAC pro. If you have a gas heating system (most do) this should be considered an urgent job as natural gas could be leaking in your home.

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

The Port Royal, SC homeowners’ guide to insulation services

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