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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon26
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Washington, IL

*The Angi rating for Insulation Service companies in Washington, 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 Washington, 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 December 24, 2025

Find Insulation pros in Washington

Avatar for AAA Northgate Heating & Air Conditioning Inc.

AAA Northgate Heating & Air Conditioning Inc.

4.84(
43
)

AAA Northgate Heating & Air Conditioning Inc.

4.84(
43
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Additional email: [email protected] . Financing available. Family Owned & Operated.

"Mitchell with AAA Northgate was just here to service and maintain my gas furnace and did a fantastic job. Friendly, professional, and thorough. I highly recommend this company - been using them for over a year now and I'm very satisfied that my HVAC needs are being looked after. Thanks, Mitchell!"

Kent B on September 2025

Additional email: [email protected] . Financing available. Family Owned & Operated.

"Mitchell with AAA Northgate was just here to service and maintain my gas furnace and did a fantastic job. Friendly, professional, and thorough. I highly recommend this company - been using them for over a year now and I'm very satisfied that my HVAC needs are being looked after. Thanks, Mitchell!"

Kent B on September 2025

Avatar for ATC INSULATORS INC

ATC INSULATORS INC

5.00(
16
)

ATC INSULATORS INC

5.00(
16
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

ATC Insulators founder Jim McGath has been in the building industry since 1964. He and his associate Kathy Kutzler were searching for a product to compliment their polyurethane foam-filled structural building panels (SIPS). They found the answer in Icynene Spray Foam Insulation. Icynene Spray Foam is the leading flexible foam in North America. Since 1995 ATC is the only licensed dealer for this product in Central Illinois. This water based product promotes healthy living, has a Lifetime Warranty that it will not shrink, crack, sag, settle, fall off or turn to dust. The product has won numerous awards including "Best in Show" by Green Builder Magazine. It is the insulation of choice for Green Building around the World, setting a standard for energy performance, comfort, health, and reduced Green House gas emissions.

ATC Insulators founder Jim McGath has been in the building industry since 1964. He and his associate Kathy Kutzler were searching for a product to compliment their polyurethane foam-filled structural building panels (SIPS). They found the answer in Icynene Spray Foam Insulation. Icynene Spray Foam is the leading flexible foam in North America. Since 1995 ATC is the only licensed dealer for this product in Central Illinois. This water based product promotes healthy living, has a Lifetime Warranty that it will not shrink, crack, sag, settle, fall off or turn to dust. The product has won numerous awards including "Best in Show" by Green Builder Magazine. It is the insulation of choice for Green Building around the World, setting a standard for energy performance, comfort, health, and reduced Green House gas emissions.

Avatar for MidAmerica Basement Systems

MidAmerica Basement Systems

4.55(
140
)

MidAmerica Basement Systems

4.55(
140
)
Customers say: Quality work
36 years of experience

MidAmerica Basement Systems is your premier locally owned and operated company that specializes in foundation repair, basement waterproofing, crawl space repair, concrete leveling, and radon mitigation.

"Salesman that we were to replace dry wall. Later learned we were to have it removed. Attempts to reach supervisors and owners resulted in zero until time to do installation. Gave $1300+ down. Note: this went to the salesman, not to MABS. Then salesman stated $12,000 more if MABS removed the dry wall. Paid salesman and his friend to remove it but didn't do all of it! Sent certified letters to Cedar Rapids address after we got no verbal responses to phone calls. Later learned they receive no mail there, only in Davenport. Were to have GFI outlet placed at far end of basement. 3 electricians said not possible. Also discharge was to be underground to rear of yard which we thought meant to back! House sits on clay. Was to discharge under ground out 10 feet from house. Canceled installation and have found that other basement waterproofing companies do not require 2.5 feet of dry wall removed: only baseboard. Cost was same as MABS. Now we must pay to have drywall installed after the waterproofing is completed."

Barbara S on September 2020

MidAmerica Basement Systems is your premier locally owned and operated company that specializes in foundation repair, basement waterproofing, crawl space repair, concrete leveling, and radon mitigation.

"Salesman that we were to replace dry wall. Later learned we were to have it removed. Attempts to reach supervisors and owners resulted in zero until time to do installation. Gave $1300+ down. Note: this went to the salesman, not to MABS. Then salesman stated $12,000 more if MABS removed the dry wall. Paid salesman and his friend to remove it but didn't do all of it! Sent certified letters to Cedar Rapids address after we got no verbal responses to phone calls. Later learned they receive no mail there, only in Davenport. Were to have GFI outlet placed at far end of basement. 3 electricians said not possible. Also discharge was to be underground to rear of yard which we thought meant to back! House sits on clay. Was to discharge under ground out 10 feet from house. Canceled installation and have found that other basement waterproofing companies do not require 2.5 feet of dry wall removed: only baseboard. Cost was same as MABS. Now we must pay to have drywall installed after the waterproofing is completed."

Barbara S on September 2020

Avatar for Peoria Siding & Window Co

Peoria Siding & Window Co

4.66(
44
)

Peoria Siding & Window Co

4.66(
44
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Peoria Siding & Window specializes in Roofing, Siding, Replacement Windows, Doors, Gutter Protection, Attic Insulation, Awnings, Decking, Patio Covers, Pergolas, Screenrooms and Sunrooms. With over FIVE decades of experience in your community and more than 50,000 successful home improvements, Peoria Siding & Window will be here for you today and tomorrow! We’re so much more than just windows and siding, too! Roofing, Doors, Sunrooms, Decks and Pergolas – we do it all! Home improvement projects can be scary and we do our best to take away that fear and put your trust in us! Not only do we back up all of our top of the line products with great warranties but, we build it, sell it and install it…all under one roof! You can count on us!

Peoria Siding & Window specializes in Roofing, Siding, Replacement Windows, Doors, Gutter Protection, Attic Insulation, Awnings, Decking, Patio Covers, Pergolas, Screenrooms and Sunrooms. With over FIVE decades of experience in your community and more than 50,000 successful home improvements, Peoria Siding & Window will be here for you today and tomorrow! We’re so much more than just windows and siding, too! Roofing, Doors, Sunrooms, Decks and Pergolas – we do it all! Home improvement projects can be scary and we do our best to take away that fear and put your trust in us! Not only do we back up all of our top of the line products with great warranties but, we build it, sell it and install it…all under one roof! You can count on us!

Steven Grant Construction

4.89(
18
)

Steven Grant Construction

4.89(
18
)
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Free computer drafting with general knowlege of design. I have 30 years experience in building houses. I am familiar with local subcontractors. I can get any job done at a reasonable cost.

"The work was done properly and when some additional jobs were added, Mr Grant went out of his way to get subcontractor's in to fix the added jobs promptly. I was very happy with the results and would recommend Steven Grant Construction to anyone who needed a prompt quote and a properly done job. He took the extra steps to finish my job within the quote so I stayed on budget."

Cindy M on June 2020

Free computer drafting with general knowlege of design. I have 30 years experience in building houses. I am familiar with local subcontractors. I can get any job done at a reasonable cost.

"The work was done properly and when some additional jobs were added, Mr Grant went out of his way to get subcontractor's in to fix the added jobs promptly. I was very happy with the results and would recommend Steven Grant Construction to anyone who needed a prompt quote and a properly done job. He took the extra steps to finish my job within the quote so I stayed on budget."

Cindy M on June 2020

Avatar for Illiana Insulation Inc

Illiana Insulation Inc

4.60(
10
)

Illiana Insulation Inc

4.60(
10
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Illiana Insulation has over 50 years of combined experience. Our goal is to improve the comfort of your home/commercial building because we believe "it's what's inside that counts." Call us today and we will come look at your project and provide you with a free estimate.

Illiana Insulation has over 50 years of combined experience. Our goal is to improve the comfort of your home/commercial building because we believe "it's what's inside that counts." Call us today and we will come look at your project and provide you with a free estimate.

Avatar for Cronkhite Home solutions

Cronkhite Home solutions

4.41(
17
)

Cronkhite Home solutions

4.41(
17
)
Customers say: Quality work
14 years of experience

Cronkhite Home Solutions has 20 years of experience providing quality home improvements at a fair price and excptional service. We focus on Energy Improvements for the home. These improvements include Reflective Attic Insulation, Solar Attic Fans, Replacement Windows, Energy Reducing Window Films, Entry Doors, Exterior Siding, and Leaf guards. We want to help homeowners in determining the right home improvements at the right time. We provide a Free 14 Point Home Energy Assessment with No Obligation. This allows us to evaluate the improvements needed and help design a plan of attack that makes sense and is affordable. www.cronkhitehomesolutions.com

"Like some of the other people have stated.. they are pricey and they are also extremely busy. We worked with Andy as the sales rep and he was a great guy. We told him what we were willing to spend at most and he made sure we got everything we wanted for that price. I think people who are new to construction work might see these guys as a hassle but in all honesty.. the men they had working for us were some of the hardest working and fastest working men I’ve ever met. Everything was done in a week and a half.. and it is STUNNING! My only complaint is that we were supposed to get it started 8 weeks after signing and it didn’t start til about 12 weeks.. like I said though.. it’s a very busy time of the year. COVID-19 has everyone at home with their honey-do list and EVERYWHERE is booked. I would absolutely recommend Cronkhite.. always negotiate on price.. and make sure to check the work being done. Don’t watch them do something wrong and complain about it after.. If you have questions then ask them!"

Stephanie M on October 2020

Cronkhite Home Solutions has 20 years of experience providing quality home improvements at a fair price and excptional service. We focus on Energy Improvements for the home. These improvements include Reflective Attic Insulation, Solar Attic Fans, Replacement Windows, Energy Reducing Window Films, Entry Doors, Exterior Siding, and Leaf guards. We want to help homeowners in determining the right home improvements at the right time. We provide a Free 14 Point Home Energy Assessment with No Obligation. This allows us to evaluate the improvements needed and help design a plan of attack that makes sense and is affordable. www.cronkhitehomesolutions.com

"Like some of the other people have stated.. they are pricey and they are also extremely busy. We worked with Andy as the sales rep and he was a great guy. We told him what we were willing to spend at most and he made sure we got everything we wanted for that price. I think people who are new to construction work might see these guys as a hassle but in all honesty.. the men they had working for us were some of the hardest working and fastest working men I’ve ever met. Everything was done in a week and a half.. and it is STUNNING! My only complaint is that we were supposed to get it started 8 weeks after signing and it didn’t start til about 12 weeks.. like I said though.. it’s a very busy time of the year. COVID-19 has everyone at home with their honey-do list and EVERYWHERE is booked. I would absolutely recommend Cronkhite.. always negotiate on price.. and make sure to check the work being done. Don’t watch them do something wrong and complain about it after.. If you have questions then ask them!"

Stephanie M on October 2020

Avatar for Cornerstone Builders & Developers Inc

Cornerstone Builders & Developers Inc

5.00(
5
)

Cornerstone Builders & Developers Inc

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family owned construction company with a desire to ensure that you are pleased with the work we do. We are able to do most jobs in a quick and timely fashion so that you are not waiting endlessly for the work to be completed. We specialize in residential and commercial projects throughout central Illinois. We do remodels of churches, restaurants and homes. We also do drywall, painting, general contracting and much more. Give us a call for a free estimate and see how you like us.

We are a family owned construction company with a desire to ensure that you are pleased with the work we do. We are able to do most jobs in a quick and timely fashion so that you are not waiting endlessly for the work to be completed. We specialize in residential and commercial projects throughout central Illinois. We do remodels of churches, restaurants and homes. We also do drywall, painting, general contracting and much more. Give us a call for a free estimate and see how you like us.

Avatar for KELLEY CONSTRUCTION

KELLEY CONSTRUCTION

3.97(
36
)

KELLEY CONSTRUCTION

3.97(
36
)
Customers say: Quality work
31 years of experience

We are a remodeling general contractor & we treat you like royalty.

"LEFT me for two weeks without finishing and with NO EXPLANATION. I fired them on viewing my cheap RESTORATION garage lights and then finding out they were going to cheat the insurance company....FRAUD."

Cheryl P on June 2024

We are a remodeling general contractor & we treat you like royalty.

"LEFT me for two weeks without finishing and with NO EXPLANATION. I fired them on viewing my cheap RESTORATION garage lights and then finding out they were going to cheat the insurance company....FRAUD."

Cheryl P on June 2024

Cramer Siding & Window

3.91(
33
)

Cramer Siding & Window

3.91(
33
)
Customers say: Super punctual
70 years of experience

With 57 years in business and more than 50,000 successful home improvements, you can count on us! Cramer Siding and Window will be for you today and tomorrow! At Cramer Siding, we are so much more than just siding! From roofing, doors, sunrooms, decks, and pergolas, we can help improve your home! We strive to offer top of the line products paired with professional installation. At Cramer Siding and Window, know that you can count on us… every time! Additional phone - (800) 209-9220. Additional DBAs - Cramer Co Siding & Insulation, Cramer Co Inc, Prairie Home Alliance. Additional website - www.prairiehomealliance.com.

"It started off bad it was cold mid January 2020 they sent 2 men to tear off the siding and replace it. It took a month(they finished in February) I started taking pictures at first to record our experience good thing, I then was taking pictures to protect myself. They never put there things away at the end of the day (extension cords, ladders saw horses ect..) every day I had to take pictures.(They stepped on a small bush and broke it, they put there ladder on my new air conditioner and put large scratches in it, they damaged my garage, and spilled a red drink on my new $3,200 concrete steps and stained them) they have paid for the damage but still have not tried to clean my steps, And when they were done and asked me to sign off and pay the rest of what I owed I ask them to please clean there oily hand prints off the siding they agreed I signed off and they left with out cleaning. The siding looked really good once they came back to clean it. three months went by and two sides of our house wrapped and here it is November 2020 and they haven't fixed my siding yet. I have no issues with the windows."

Forest R on November 2020

With 57 years in business and more than 50,000 successful home improvements, you can count on us! Cramer Siding and Window will be for you today and tomorrow! At Cramer Siding, we are so much more than just siding! From roofing, doors, sunrooms, decks, and pergolas, we can help improve your home! We strive to offer top of the line products paired with professional installation. At Cramer Siding and Window, know that you can count on us… every time! Additional phone - (800) 209-9220. Additional DBAs - Cramer Co Siding & Insulation, Cramer Co Inc, Prairie Home Alliance. Additional website - www.prairiehomealliance.com.

"It started off bad it was cold mid January 2020 they sent 2 men to tear off the siding and replace it. It took a month(they finished in February) I started taking pictures at first to record our experience good thing, I then was taking pictures to protect myself. They never put there things away at the end of the day (extension cords, ladders saw horses ect..) every day I had to take pictures.(They stepped on a small bush and broke it, they put there ladder on my new air conditioner and put large scratches in it, they damaged my garage, and spilled a red drink on my new $3,200 concrete steps and stained them) they have paid for the damage but still have not tried to clean my steps, And when they were done and asked me to sign off and pay the rest of what I owed I ask them to please clean there oily hand prints off the siding they agreed I signed off and they left with out cleaning. The siding looked really good once they came back to clean it. three months went by and two sides of our house wrapped and here it is November 2020 and they haven't fixed my siding yet. I have no issues with the windows."

Forest R on November 2020

Showing 1-10 of 43
Insulation questions, answered by experts

Reduces energy costs, improves comfort, and prevents ice dams in winter.

Buying a house with vermiculite insulation is not recommended without going through a proper testing process. Vermiculite insulation can potentially contain asbestos, which poses health risks when disturbed. While it is possible to purchase a home with vermiculite insulation, you should have it tested for asbestos, and ensure proper containment if asbestos is present. If asbestos is present, you will want to hire a professional to remove it, ideally before you move in.

Yes, insulated vinyl siding increases the R-value of your home. Depending on the quality and brand of the insulated vinyl, you can get an R-value that is up to 5 times greater than traditional vinyl siding. This can be fantastic for homeowners who are trying to lower their utility costs.

Insulation can be made of cellulose, fiberglass, polyurethane, polystyrene, or mineral wool. Radiant barriers are often made of aluminum or other similarly reflective materials, but they will need to be paired with something else because they don’t provide heating benefits. Cellulose is among the most eco-friendly options and may be recycled when it’s past its shelf-life, whereas polyurethane and polystyrene both emit harmful compounds and will need to be handled with care during installation.

While fiberglass is dangerous to work with, it’s a perfectly safe material once it’s installed. If you’re tackling the installation yourself, make sure you take the proper safety precautions and wear the right gear to avoid skin and eye irritation and lung complications. Working with a professional insulation company can mitigate these risks.

The Washington, IL homeowners’ guide to insulation services

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

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