Get matched with top insulation pros in Geneseo, IL

Q: How can you tell if ducts have enough insulation?

• <div><p>If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you&rsquo;re unsure, consider having your system&rsquo;s efficiency assessed by a local independent energy auditor.</p></div>

Q: What is an STC rating?

• <div><p>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.</p><p>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.</p><p>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.</p></div>

Q: Should I remove the old insulation before blowing in new insulation?

• <div><p>Whether you should <a href="https://www.angi.com/articles/should-i-remove-old-insulation-when-i-upgrade.htm">remove old insulation before blowing in new insulation</a> depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials. </p></div>

Q: How much heat do you lose in a poorly insulated attic?

• <div><p>The heat loss through a poorly insulated attic when you&rsquo;re running your furnace or heat pump during cold weather can be as high as 25%. This means you could see significantly higher energy costs to make up for this heat loss. The cost of adding insulation to the attic may eventually pay for itself through lower energy bills. If you decide to add a radiant barrier too, the <a href="https://www.angi.com/articles/radiant-barrier-cost.htm">radiant barrier cost</a> may also pay for itself over time.</p></div>

Q: Should you put plastic over insulation in basement walls?

• <div><p>A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.</p></div>

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Verified Reviews for Insulation Service pros in Geneseo, IL

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

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

Last update on November 12, 2024

Reviewed in November 2024
Water leaks were repaired and heat tape installed. The work was done with an attention to detail that gives peace of mind. Others with renovating experience have commented on the exceptional quality after seeing the work done by R&B Renovation. Will definitely recommend.
R & B Remodeling
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Reviewed in November 2024
Very timely response to initial communication. Followed With questions and details about the ceiling insulation project I was seeking information for. I received a text the day before the work was done to confirm arrival time. The work crew showed up on time and were courteous and did a great...
Home Comfort Keepers, LLC
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Reviewed in July 2024
This crew came when they said they would. They performed quality work. Our three season room has been a great addition to our living space. We would recommend Wilson Construction to others.
Wilson Residential Construction Services LLC
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Reviewed in May 2022
Ryan was very friendly and knowledgeable about the product he was presenting for our project.
Mad City Windows & Baths
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Reviewed in December 2021
David did a great job for our home. He also found a big whole in the duct and patched it for us. Now we have heat in the basement also(we just bought the home). He also did a sanitizing to the mains to get rid of pet smell . Our new home feels new now! Thank you David !
Breathe Easy Air Duct Cleaning
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Reviewed in September 2021
Very flexible reasonably priced, very friendly.
Moore Family Yard Work
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Reviewed in January 2020
He the came the next day and installed it in 3 hours 7 x 16 insulated door with standard windows for $1500
74 Garage Door Company
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Reviewed in June 2019
They did 2 different groups of window replacements 1st was porch, bedrooms, and bath. Windows looks great and porch turned out better than expected. On both orders the time it took to get the windows seem kind of long but they were special order color match. Ordered the second group of windows...
Mainstream Home Improvement Inc
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Reviewed in December 2017
The work that was completed was fine. But therein lays the problem. The work wasn't completed. The attic insulation is fine as far as I know but they missed insulating a 15 foot section of the rim joist in the basement. I would have had them back to complete it but it's Christmas week and I...
McCormick Insulation Co
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Reviewed in July 2015
Workers were always punctual and worked very hard. We are very pleased. They put drywall, insulation, painted, added doors, and updated ceiling. Will use them again.
Leffler Construction
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Find Insulation pros in Geneseo

Preferred Home Improvements

4.7(

)

Serving Geneseo, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

We here at Preferred Home Improvements take pride in our work! Customer service and satisfaction is our number one goal! The Services we offer are : Air Duct Cleaning Dryer vent cleaning Attic Insulation Crawl space clean ups We also offer other home services! We do full viedo inspections of duct work we also will do a whole walk through and explain everything step by step. We also offer before and after pictures! We have been in business over 6 years and are here to stay. We promise you will have a Awsome experience with us. We also offer yearly warranties and free estimates! Our service area is within 150 miles of the Quad Cites!

+30

Recommended by100%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Serving Geneseo, IL and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."

Recommended by65%of homeowners

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Green Earth Enterprises Inc

4.7(

)

Serving Geneseo, IL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

We’re here to change your perceptions of what it means to be a property owner in today’s fast paced marketplace. Whether you are a landowner with rental property, or if you would like to “flip” a property you've just purchased or maybe you're a Realty Management Company seeking to prepare your managed property for the market or simply the next tenant. We're here to help you meet your needs in an affordable & efficient manner. We offer a wide array of services to choose from in whole or in part, as it fits your needs & budget. We look forward to doing business with you! Additional Emails - [email protected], [email protected], [email protected]. Additional Address - Princeton, IL 61356.

Recommended by71%of homeowners

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Hampton Enterprise LLC

3.7(

)

Serving Geneseo, IL and surrounding areas

In business since 1989

Free estimates

Emergency services offered

Our mission at Hampton Enterprise LLC is to provide clients with superior customer service, quality work and speedy service in all aspects of their home improvement needs. Licensed, insured and trusted since 1989; come discover the Hampton difference today!\n\nWe specialize in the installation and repair of Windows, Doors, Flooring, Sinks, Bathtubs, Showers, Sprinkler Systems and much more. We also offer Interior and Exterior Home Painting, Custom Welding Fabrication and Carpentry.Localy in your area just call and i will call back with a local number thank you . from James Hampton\n\nAL.Dothan 334-648-3817,\nAL Birmingham 334-648-3817,\nAL Huntsville 334-648-3817,\nAL Mobile 334-648-3817,\nAL Tuscaloosa 334-648-3817,\nAL Montgomery 334-578-4761,\nAR Little Rock 334-648-3817,\nAZ Phoenix 334-648-3817,\nCA LosAngeles/Sacramento 334-648-3817,\nCO Denver/Colorado Springs 334-648-3817,\nCT Hartford 334-648-3817,\nDE Dover 334-648-3817,\nFL Tallahassee 334-648-3817,\nFL Cape Canaveral/ Cocoa 334-648-3817,\nFL. Destin 334-648-3817,\nFL Gainsville 334-648-3817\nFl Jacksonville 334-648-3817,\nFL Orlando 334-648-3817,\nFL Panama City 334-648-3817,\nFL Tampa 334-648-3817,\nFL Miami 334-648-3817,\nGA Atlanta 334-648-3817,\nGA Albany 334-648-3817,\nGA Augusta 334-648-3817,\nGA Columbus 334-648-3817,\nGA Macon 334-648-3817,\nGA Valdosta 334-648-3817,\nIA Des Moines 334-648-3817,\nID Boise 334-648-3817,\nIL Chicago/Springfield 334-648-3817,\nIN Indianapolis 334-648-3817,\nKS Levenworth/Topeka 334-648-3817,\nKY Frankfort 334-648-3817,\nLA New orleans/Baton Rouge 334-648-3817,\nMA Boston 334-648-3817,\nMD Annapolis 334-648-3817,\nME Augusta 334-648-3817,\nMI Detroit/Lansing 334-648-3817,\nMN Saint Paul 334-648-3817,\nMO kansas City/Jefferson City 334-648-3817,\nMS Jackson 334-648-3817,\nMS Biloxi 334-648-3817,\nMS Gulf Port 334-648-3817,\nMT helena 334-648-3817,\nNC Raleigh 334-648-3817,\nND Bismark 334-648-3817,\nNE Lincoln 334-648-3817, \nNJ Trenton 334-648-3817,\nNM Santa Fe 334-648-3817,\nNV Carson City 334-648-3817,\nNV Las Vegas 334-648-3817\nNY Albany 334-648-3817,\nOH Columbus 334-648-3817,\nOK Oklahoma Ciy 334-648-3817,\nOR Salem 334-648-3817,\nPA harrisburg 334-648-3817,\nRI Providence 334-648-3817,\nSC Columbia 334-648-3817,\nSD Pierre 334-648-3817,\nTN nashville 334-648-3817,\nTX Austin 334-648-3817,\nUT Salt Lake City 334-648-3817,\nVA Richmond 334-648-3817,\nVT montpelier 334-648-3817,\nWI Madison 334-648-3817,\nWV Charleston 334-648-3817,\nWY Cheyenne 334-648-3817

Recommended by60%of homeowners

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Insulation questions, answered by experts

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

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.

Whether you should remove old insulation before blowing in new insulation depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials.

The heat loss through a poorly insulated attic when you’re running your furnace or heat pump during cold weather can be as high as 25%. This means you could see significantly higher energy costs to make up for this heat loss. The cost of adding insulation to the attic may eventually pay for itself through lower energy bills. If you decide to add a radiant barrier too, the radiant barrier cost may also pay for itself over time.

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

The Geneseo, IL homeowners’ guide to insulation services

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

See all articles

Rachel Hoffman
•
May 30, 2026May 30, 2026
How Much Does Blown-In Insulation Cost? [2026 Data]
The cost of blown-in insulation costs varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
Dan Simms
•
May 30, 2026May 30, 2026
How Much Does Attic Insulation Cost? [2026 Data]
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
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•
Apr 16, 2026Apr 16, 2026
How Much Does It Cost to Insulate a Wall? [2026 Data]
How much does it cost to insulate a wall? This guide breaks down the associated costs and variables to consider when setting your project budget.
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•
May 3, 2026May 3, 2026
How Long Does Insulation Last? A Comprehensive Guide to Replacing Your Home's Insulation
If your home’s temperature is uncomfortable or your energy bill is spiking, you should check your insulation. We'll help you find out if you should replace it.
Jacqueline DeMarco
•
May 2, 2026May 2, 2026
Who Installs Insulation? Call This Pro to Keep Your Home Comfortable
If you need to add insulation to your home, you’re likely wondering, who installs insulation. Learn why it’s best to hire an insulation pro for this project.
Xiao Faria daCunha
•
Apr 9, 2026Apr 9, 2026
Non Fiberglass Insulation: Top Alternatives
Learn about non fiberglass insulation alternatives, including cellulose, soy, wool, blown-in, spray foam, cotton insulations, radiant barriers, and new materials.