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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon13
    Verified drywall insulation services reviews

Verified Reviews for Drywall Insulation pros in Knoxville, PA

*The Angi rating for Drywall Insulation companies in Knoxville, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Drywall Insulation needs.

*The HomeAdvisor rating for Drywall Insulation companies in Knoxville, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Drywall Insulation needs.

Last update on November 22, 2025

Find Drywall insulation pros in Knoxville

Rich Wallace Flooring

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Rich Wallace Flooring

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I can do anything from painting, plumbing, interior and exterior finish work, custom trim, tile flooring, floor leveling, leak repair, small concrete jobs.

I can do anything from painting, plumbing, interior and exterior finish work, custom trim, tile flooring, floor leveling, leak repair, small concrete jobs.

Swann Construction

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Swann Construction

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Western New York's premier general contractor providing unbeatable quality and top-notch care for any home improvement project. We focus on making your plan a reality. From start to finish, your idea is our commitment. We offer first-class expertise for a wide range of services, both interior and exterior, building, remodeling, repairs, and more. Tell us how we can partner with you. Call today for your free consultation!

Western New York's premier general contractor providing unbeatable quality and top-notch care for any home improvement project. We focus on making your plan a reality. From start to finish, your idea is our commitment. We offer first-class expertise for a wide range of services, both interior and exterior, building, remodeling, repairs, and more. Tell us how we can partner with you. Call today for your free consultation!

Wolfgong General Contracting LLC

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Wolfgong General Contracting LLC

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Wolfgong General Contracting LLC is a small local company owned and operated by Trevor Wolfgong. With a Residential Construction Management Bachelor's Degree from Pennsylvania College of Technology and over 10 years work experience the opportunities are infinite. You, the client's vision, along with the passion and craftsmanship of Trevor create endless possibilities. Get in touch today to learn more about what WGC can offer you and to receive your free estimate.

Wolfgong General Contracting LLC is a small local company owned and operated by Trevor Wolfgong. With a Residential Construction Management Bachelor's Degree from Pennsylvania College of Technology and over 10 years work experience the opportunities are infinite. You, the client's vision, along with the passion and craftsmanship of Trevor create endless possibilities. Get in touch today to learn more about what WGC can offer you and to receive your free estimate.

J Phelps General Contracting

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J Phelps General Contracting

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30 years of experience

J Phelps General Contracting has been in business for 21 years. Experienced in both residential and commercial building. Our crew is a total of 4 and we use local sub contractors for excavation, electrical, and masonry. We are fully insured and registered with the state of PA.

J Phelps General Contracting has been in business for 21 years. Experienced in both residential and commercial building. Our crew is a total of 4 and we use local sub contractors for excavation, electrical, and masonry. We are fully insured and registered with the state of PA.

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Fanning Construction

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Fanning Construction

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8 years of experience

Here at Fanning Construction we strive to satisfy all of our customers needs in a timely and professional manner. We offer unbeatable prices and exceptional work. All calls are returned promptly. No job to big or small, feel free to call. Free Estimates. Fully Licensed and Insured. PA 129796

Here at Fanning Construction we strive to satisfy all of our customers needs in a timely and professional manner. We offer unbeatable prices and exceptional work. All calls are returned promptly. No job to big or small, feel free to call. Free Estimates. Fully Licensed and Insured. PA 129796

Coleman & Co

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Coleman & Co

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Free onsite estimate

Coleman & Co is located in Summerville, PA. We are in business for 35 years. We do residential and commercial open and closed cell Spray Foam Insulation applications, and much more. Foam Insulation, Foam Insulation Service, Insulation, Home Insulation, Spray Insulation

Coleman & Co is located in Summerville, PA. We are in business for 35 years. We do residential and commercial open and closed cell Spray Foam Insulation applications, and much more. Foam Insulation, Foam Insulation Service, Insulation, Home Insulation, Spray Insulation

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Drywall Insulation questions, answered by experts

Costs depend on insulation material, labor, accessibility, and whether existing insulation requires removal.

Heat lost through uninsulated basement walls can account for up to 30% of the total energy lost through heat transfer to the outdoors. While homes in mild climates won't gain as much benefit from having an insulated basement as those in cold climates, the effects are still noticeable on your energy bill.

You don’t need to remove old insulation before adding new insulation. As long as the old insulation is still in good shape—not wet, physically damaged, or moldy—then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you’ll likely see more benefit from removing it and replacing it instead.

The amount of insulation you need will vary depending on where you live. Energy Star recommends certain minimum insulation values in different geographic regions. In most cases, however, even adding a little insulation is better than not adding any.

When temperatures are too cold, it can keep ice from melting, and products like ice melt and rock salt are ineffective. Water turns to ice in temperatures below 32 degrees Fahrenheit. Ice melts on its own when temperatures reach above 32 degrees Fahrenheit. 

Ice melt loses effectiveness in temperatures below -25 degrees Fahrenheit, and rock salt works in temperatures 5 degrees Fahrenheit and warmer.

The Knoxville, PA homeowners’ guide to drywall insulation services

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

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