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TRUSTED BY WILMINGTON, IL HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon47
    Verified insulation services reviews

Find Insulation pros in Wilmington

Avatar for Weather Shield Insulators
Weather Shield Insulators
5.0(
27
)

Serving Wilmington, IL and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"We badly needed insulation in our attic. We got three quotes. Weather Shield was not only the most reasonable, but the only company in which the owner both gave us the quote and installed the insulation with colleague. We could not have asked for more professionalism or better service. Would highly recommend Gus."
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+14

Response time2 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic Pro
Attic Pro
5.0(
28
)

Serving Wilmington, IL and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Attic Pro Insulation did an outstanding job! They contacted me 10 minutes after I entered my search information.They were professional, on time, and explained everything clearly. Highly recommend them for anyone needing quality insulation work!"
Response time8 hrs
Response rate91%
19 neighbors recently requested a quote
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,513
)

Serving Wilmington, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"The team worked very well together. They were very willing to explain their work as they progressed. Work looks really good. Cleaned up well after themselves. We liked the insulation and overlay...makes the crawlspace functional."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate94%
56 neighbors recently requested a quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
263
)

Serving Wilmington, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

Elevate your home with Home Genius Exteriors, setting the standard in Chicago 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!

Recommended by87%of homeowners
Avatar for Arcos Environmental Services, Inc.
Arcos Environmental Services, Inc.
4.3(
12
)

Serving Wilmington, IL and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

For the last 15 years, Arcos Environmental Services, Inc. has been serving as a general contractor for government weatherization programs. As we have continued to grow, we have created the subsidiary Arcos Pro Services to serve as our residential division of insulation installation using the same professional and detailed work. We are committed to giving homeowners a peace of mind in regards to their home's energy efficiency. \n\nArcos is also a Nicor Gas Contractor Circle member meaning finished upgrades to your home may qualify you for up to $1,250 in rebates as well as tax incentives. Check out our website for more information!\n\n

Air Sealing
R49 Blown In Insulation
Before work
pre insulation levels
In the procees to allow attic walkway

+3

Response time1 day
97 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Trela Roofing and Remodeling
Trela Roofing and Remodeling
4.6(
1,237
)

Serving Wilmington, IL and surrounding areas

Approved

In business since 1952

Free estimates

Warranties offered

"Wonderfully. Ryan was a very knowledgeable pro and gave me an insulation estimate on the same day. He also found an antique Dutch Oven in the attic dating from 1920, so we've gotten an heirloom in the bargain."
Additional Photos
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Response time2 days
25 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Window Works, Inc.
Window Works, Inc.
3.3(
180
)

Serving Wilmington, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"I believe the price was too high for the quality of work. The dry wall that was put up was not a smooth finish. They did not cover up my possessions as they said they would. They did not clean up very well. I found at least 8 nails on the ground & some insulation was left in the garage. Had I not swept the floor I probably would have Gotten a flat tire. They used my ladder & my broom without asking."
Window Installation
Window Installation
Sliding Patio Door Installation
Window Installation
Sliding Patio Door Installation

+4

Recommended by83%of homeowners
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Insulation questions, answered by experts

If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process. 

A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.

Yes, you can use too much bubble wrap. If you overdo it with the wrapping, it can strain the top of your box and break open the taped seal, risking the chance that the contents of the box could fall out or break. Use enough wrapping to fully cover your item without compromising the security of your box.

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

Polyisocyanurate foam, or polyiso for short, has the highest R-value per square inch: 6.5 to 6.8. Polyiso is a rigid foam that comes with a reflective foil on both sides to serve as a radiant barrier. Given its high R-value, rigid foam is usually meant for foundations and basement walls.

The lifespan of insulation depends on the material type. Fiberglass can last between 80 and 100 years, but it is important to start checking it around the 15-year mark. Spray foam has a lifespan of up to 100 years, and mineral wool can last up to 100 years. Cellulose, an eco-friendly option, has a lifespan of 20 to 30 years.

The Wilmington, IL homeowners’ guide to insulation services

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