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Find Spray foam insulation pros in Chicago

Avatar for Corona Insulation
Corona Insulation
4.8(
71
)

Serving Chicago, 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
16 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic Air
Attic Air
4.9(
257
)

Serving Chicago, 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
9 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Green Attic Insulation
Green Attic Insulation
4.3(
419
)

Serving Chicago, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I am very happy with the work done by Green Attic Insulation. David and Charlie were very friendly, professional, responsive, and flexible in working with my changing needs. I originally was looking into insulation but then discovered there was mold in my attic. As the job grew, David, Charlie, and their team worked with me to address the additional parts of the job. I really appreciate their knowledge and the thorough job they did. They took many pictures of their progress and kept me informed each step of the way. Thank you very much!"
Insulation.
Exterior Wall Insulation.
Solar Fan.
Spray Foam Insulation
Attic Insulation

+881

Response time1 day
9 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Attic Pro
Attic Pro
5.0(
28
)

Serving Chicago, 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%
21 neighbors recently requested a quote
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,512
)

Serving Chicago, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"Very accommodating company. Responded to all my questions and concerns, treated my home with the utmost respect and left it clean. The room was a bedroom carpeted by prior owners. When I removed the carpet, it uncovered a nightmare. The room used to be part of the garage. The previous owners left the oil spills. dirt, and cracks and just covered it with carpet. Soooooo disgusting. Perma seal ground out the cracks, pumped poly foam underneath for support, sealed the cracks, ground them to level them, and it even looks like they tried to clean up the disgusting oil spills left by previous owners. (I'll be doing additional scrubbing). I will wait for spring thaw to assess its waterproofness before I order my new floor. See before and after shots."
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 Chicago, 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 Trela Roofing and Remodeling
Trela Roofing and Remodeling
4.6(
1,237
)

Serving Chicago, 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
Additional Photos
Additional Photos
Response time2 days
22 neighbors recently requested a quote
Recommended by94%of homeowners
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FAQs for spray foam insulation projects in Chicago, 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.