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Find Spray foam insulation pros in Naperville

Avatar for Weather Shield Insulators
Weather Shield Insulators
5.0(
27
)
Insulation - Install or Upgrade

Serving Naperville, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Response time11 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ARC Insulation, Inc.
ARC Insulation, Inc.
4.7(
49
)

Serving Naperville, IL and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"Kevin did an outstanding job of evaluating my basement project, making suggestions, and overseeing the 2 different crews that did the job. Both of the crews did a great job protecting the areas from getting any damage. We had closed cell foam sprayed on all the exterior walls and the sills, including underneath the 3 bay windows, The second crew sprayed a layer of cellulose that makes for a quiet wall all the way to the edge of each stud. They cleaned up after the job before they left."
My Work.
Our Work
Our Work
Our Work
Our Work

+8

Response time2 days
40 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Corona Insulation
Corona Insulation
4.8(
71
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quality work

"They were a little more expensive than their competitors but handled all furniture moving and cleanup. They weâ re very professional, worked quickly, but took the time to do the job right. And their solution worked: They applied foam insulation to the ceiling of my 3-season room which is now warm in the winter."
Response time2 days
12 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ARC INSULATION
ARC INSULATION
4.6(
96
)

Serving Naperville, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Warranties offered

"Robert was very helpful and patient during our consultation and was willing to take the time to understand our somewhat-complicated split-level house to make sure he was recommending the right work to be done. We ended up going with closed-cell foam under the floor in the crawl-space of a bump-out room, on the rim joists in the basement, and in the lower 2 feet where a foundation wall had been left un-insulated above the frost line. As an extra bonus, ARC Insulation was also willing/able to coordinate with the general contractor for a bathroom remodel we were doing around the same time, and foamed the exterior wall of the bathroom while the wall was open for the remodel. Also, I would say a sign of a good company is how they handle unexpected set-backs. In our case, when the foam truck arrived at the agreed-to time, unfortunately the foam machine had stopped working, and the workers were unable to start the job (truck needed to be brought in for repairs). Craig was extremely helpful to keep our project (and the bathroom remodel) on track and was able to get another truck to come out the following morning. The following morning, the workers arrived on time, did a reasonable job at protecting areas not being sprayed (all I noticed was some red spots on the carpet from when they snapped a chalk line and some overspray on the wall that would need re-painting anyways), and cleaned up after themselves when done. Shortly after they finished, there was a chemical-like smell for a few hours, which I was able to get rid of by running fans in the windows for a while. After 24 hours, there was no detectable smell. Finally, ARC Insulation was quite understanding / helpful when the general contractor for my bathroom remodel complained that the foam stuck out past the furring strips on the wall, preventing them from installing cement board for the shower. That same afternoon, two workers came to trim down the excess foam, and the shower-work was able to proceed the following day."
Air Duct Cleaning Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Attic Air
Attic Air
4.9(
257
)
Insulation - Install or Upgrade

Serving Naperville, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"It went really well. Robert Carroll really knows his stuff. Hire this guy. I say that without reservation of any kind. Don't look any further, believe me, I did. This is the smartest guy. He is honest, dependable, offers fair pricing, and his team can do all the work. I got several estimates from A+ rated insulation companies, but Robert was more knowledgeable than the other companies. He was the only one to point out that my soffits were not vented. Apparently, my house was built on the day no one was inspecting. The builder never cut open the soffits. That meant there was zero airflow going through my attic. The attic fan could run all day, but without air to move, it would not do any good. Only Robert noticed this and offered a solution to fix the problem! I asked some of the other A+ companies if they would vent the soffits and they all said they don't do that work, but they would be happy to add more insulation, which would not fix the problem if the attic was not vented."
Response time2 days
4 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Koala Insulation of Chicago-West
Koala Insulation of Chicago-West
5.0(
16
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Koala Team was excellent starting with John Anthony giving us a quote immediately after looking at the space. He told us about a rebate and applied it off the top. Team showed up on time, they were neat, did a beautiful job of putting the foam insulation in. We are very happy and would definitely recommend Koala to our friends and neighbors."
Insulation Projects
Insulation Projects
Insulation Projects
Response time12 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Foy's Final Touch, Inc.
4.9(
311
)

Serving Naperville, IL and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quality work

"Neil and his team did a great job installing new attic insulation in my home. They did a thorough job of removing all the old insulation, repairing the bathroom fan vents, fixing the soffit vents and spraying all new insulation throughout the attic. I highly recommend Neil and team. They were professional, courteous and I am highly recommend them."
Attic
Attic
Attic
Recommended by99%of homeowners
Avatar for Attic Pro
Attic Pro
5.0(
43
)

Serving Naperville, 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 rate100%
7 neighbors recently requested a quote
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FAQs for spray foam insulation projects in Naperville, IL

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.