How do I add insulation to existing walls?

• <div><p>If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install <a href="https://www.angi.com/articles/blown-in-insulation.htm">blown-in insulation</a>. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than <b>$100</b>. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.</p></div>

Does putting plastic over windows help insulate them?

• <div><p>Using plastic shrink film over the window will cut down on drafts, which makes the air inside your home feel warmer. Plastic shrink film doesn’t quite have the insulative properties of a new window or of adding insulation inside the window jamb, but it will help. Plus, it’s a cost-effective solution to keeping your home warmer.</p></div>

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Q: How do experts ensure adequate insulation coverage?

• <div><p>Experts use advanced techniques and tools to assess existing insulation levels and identify gaps. They implement strategic placement of new insulation to ensure complete coverage, optimizing thermal resistance and energy efficiency.</p></div>

Q: What type of insulation do I need in my home?

• <div><p>The type of insulation you need in your home depends on your location, the installation site, and your region&rsquo;s climate. According to Energy Star, insulation in homes in the Southern United States should have an R-value of between R30 and R60 in attics and R13 to R25 in the floors and walls; homes in moderate climates require R values of R38 to R60 in attics and R25 to R30 in floors and walls; and homes in northern states require an R value of R49 to R60 in attics and R25 to R30 in floors and walls.</p></div>

Q: How long does air duct insulation last?

• <div><p>Air duct insulation lasts between 10 to 15 years. How long air duct insulation lasts will depend on the material it's made of and ongoing maintenance.</p><p>To extend the life span of duct insulation, consider inspecting it periodically for signs of deterioration, water damage, or general wear and tear. Even if the insulation is in good shape, some homeowners might consider replacing it with newer, more energy-efficient insulation.</p></div>

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Verified Reviews for Drywall Insulation pros in Mackinaw, IL

*The Angi rating for Drywall Insulation companies in Mackinaw, IL 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 Mackinaw, IL 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 06, 2025

Reviewed in October 2023
It was great working with Steve and his crew. Complete insulation job for our new home and we are very pleased with everything!!
Home Comfort, Inc.
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Reviewed in November 2018
I highly recommend A1 Quality Construction. We were looking to have 3 rooms in our basement framed, new electrical, drywall, floor and trimmed out. Dan was quick to meet with me to review my project and he provided an initial quote the same day, which was quite a bit less than the...
A1 Quality Construction Services, Inc.
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Reviewed in December 2015
I have no idea how they stay in business, in my experience Energy Home Insulation Inc. is completely incompetent. First, they did not insulate over the garage even though I have a heated garage, the garage was insulated previous to the fire and the insurance company was paying to have the...
ENERGY HOME INSULATION INC
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Reviewed in November 2015
I have been having huge heating bills and during investigations discovered a hole in the wall in the crawlspace that the original insulation contractor had covered with cardboard and spray foamed. End result - massive air leak under the cardboard. I called Kaufman & Sons and Cliff came out...
Clifford Kaufman & Sons Inc
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Reviewed in July 2015
p&w were terminated from building my home any more in september. i had hired inspectors to inspect the inside and outside of my home for problems. and they found many problems with the inside of the home. update 7-17-15 have been in court with p&w since they were fired almost 2 years ago ...
P & W Builders Inc
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Reviewed in January 2015
They seem to do good work, but they were HORRIBLE at communication. We waited for more than a month for them to start our job, all the while being assured every Friday afternoon that come Monday morning, they would be there and "camp out" until the job was done. Never happened. They were start...
Reading & Son Plumbing Inc
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Reviewed in January 2015
Very good service. Mark was knowledgeable and helped us figure out what we needed to heat and cool our new home. He also recommended insulation for our basement. They came out the day after we closed and were the first of our contractors done with our home improvement projects.
Meister Heating & Air Conditioning
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Reviewed in July 2014
John from Pauli Builders came to my house, listened to what I wanted done, and offered suggestions. Someone not connected with Pauli tested my home for air leakage before and after the insulation was blown in - a 65% improvement and Ameren paid for around half of the cost for that. Pauli...
S.F. Pauli Builders, Inc.
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Reviewed in June 2009
We called and set up an inital appt for them to come out and provide quote. They came a couple of days later. Called back the next day to make appt for install. Was about a week later. Very impressed with there service and promptness. Very reasonable price for what all they did. Only had a minor...
Aladdin Insulation & Home Improvement
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AJC Home Services, Inc.

AJC Home Services, Inc.

Customers say: True professional

213 local quotes requested

26 years of experience

AJC Home Services, Inc., is a locally owned and operated business with 25 years of experience. We specialize in all aspects of the exterior of your home and lawn and also home improvements. Your satisfaction is our highest priority. Give us a call today for a personalized and complimentary consultation.

"AJC Home Services was here this morning about 8:30 to cut down 12 very tall Evergreen trees. I watched them do this and it was very interesting to see the whole process. The 2 gentlemen were professional, hard working and thorough. They had them all cut down along with the clean-up in under 90 minutes. The stump grinding crew are on their way, as I write this to complete the job."

Betty H on September 2025

"AJC Home Services was here this morning about 8:30 to cut down 12 very tall Evergreen trees. I watched them do this and it was very interesting to see the whole process. The 2 gentlemen were professional, hard working and thorough. They had them all cut down along with the clean-up in under 90 minutes. The stump grinding crew are on their way, as I write this to complete the job."

Betty H on September 2025

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Drywall Repair

Drywall Installation

Handyman for Multiple Small Project Service

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AJC Home Services, Inc.

AJC Home Services, Inc.

Team Bailey painting and handyman

Team Bailey painting and handyman

New valley construction LLC

New valley construction LLC

Thomas

Thomas

Steven Johnson

Steven Johnson

Vanoppen Construction

Vanoppen Construction

Thompson-Renovations

Thompson-Renovations

Different level llc

Different level llc

Awesome Universal Designs LLC.

Awesome Universal Designs LLC.

Emilio's Drywall

Emilio's Drywall

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