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TRUSTED BY DARIEN, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon295
    Verified insulation services reviews

Find Insulation pros in Darien

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

Serving Darien, IL and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"I am extremely satisfied with Weather Sheild Insulation. Mr. Gonzalez was courteous , professional, prompt, knowledgeable and very informative. He answered all my questions, gave me several options with Quality materials at a great price. Clean and efficient. I highly recommend."
Additional Photos
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+14

Response time2 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ARC Insulation, Inc.
ARC Insulation, Inc.
4.7(
49
)

Serving Darien, IL and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"Everyone at Arc Insulation knew their product and were well versed in explaining the process. Overall happy with the work."
My Work.
Our Work
Our Work
Our Work
Our Work

+8

Response time2 days
56 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic Air
Attic Air
4.9(
257
)

Serving Darien, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Attic Air absolutely lived up to their reputation. They did a GREAT job! I did my research in creating a short list of 3 bidders for the job. I have a bi-level house (4 levels) with 2 attics. We had black mold on the underside of the roof which we had remediated a week before having Attic Air come in to fix our ventilation and insulation issues. Our upstairs floor was cold in the winter and hot in the summer. The attic ventilation and insulation needed to get fixed, and I wanted to make sure I hired a good company to do it the right way so I never had to worry about it again. I made the right choice. The temperature throughout the house is so much more even now. Before Attic Air came out, the basement and sub-basement were freezing and the first and second floors were warm and hot. My over-sized top of the line Trane a/c unit was working overdrive to try to cool the 2nd floor and never could do it. The top floor is so much cooler now than before. It's really going to save my a/c unit in the long run. Attic Air was not the lowest bid of the 3, but you get what you pay for. If you want to get the best quality this is the company you want. I would haven't have changed a thing. Worth every penny!"
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 Darien, 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

+886

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

Serving Darien, 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 Peak Performance Insulation LLC
Peak Performance Insulation LLC
5.0(
11
)

Serving Darien, IL and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Great company to work with. Consultation and estimate process was thorough and transparent. Work was excellent and exceeded expectations. Would definitely recommend them to anyone looking for insulation work."
Blown in Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation
Attic Insulation

+5

Response time6 hrs
Response rate96%
23 neighbors recently requested a quote
Avatar for Daniel Nagel
Daniel Nagel
4.6(
42
)

Serving Darien, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Dan did a great job of going through everything very thoroughly with me and pointing out a plan of remedy for the aspects of my home that seemed most significant to least significant. I would recommend him in the future for anyone looking to get an understanding of their home energy performance."
Response time1 day
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for NM Enterprise's Energy Solutions
NM Enterprise's Energy Solutions
4.9(
51
)

Serving Darien, IL and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Nick and his crew were so informative and pleasant to do business with. We had attics insulated, new vents installed, and outside blown-in cellulose, and they worked long hours to make sure everything was done correctly. I would definitely recommend this business. A great surprise was how the insulation muffled loud outside noises (fireworks and loud vehicles)."
Response time8 hrs
Response rate98%
10 neighbors recently requested a quote
Insutech
4.1(
26
)

Serving Darien, IL and surrounding areas

Approved

In business since 2007

Free estimates

Customers say: True professional

"Gilbert returned my call within 30 minutes of the Home Advisor request. He arrived at my home within 2 hours and explained the process of insulating my garage ceiling. Gilberto gave me a fair quote and we scheduled the job for 4 days later. He arrived with his crew on time and finished the insulating within 2 hours. The crew broom swept the garage floor & placed our objects back in their original location. The entire crew was polite, knowledgeable and respectful of my property. Since the insulation was installed, our garage is a very comfortable temperature. Gilbertâ s recommendation for the proper type insulation was absolutely correct. He knows his trade! I would highly recommend Insu Tech to family and friends."
Response time2 days
Response rate94%
12 neighbors recently requested a quote
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Insulation questions, answered by experts

The most obvious con of injection foam is the cost. It’s much more expensive to install than fiberglass or spray foam, but it may be your only option (unless you want to remove entire walls around the home). Another con is that it involves drilling into existing material, which has to be repaired after the foam is injected. Some injection foams are made from products that aren’t environmentally friendly, and improper installation can lead to trapped moisture, which can lead to expensive mold remediation down the road. 

Insulating a stone house is an expensive and involved process because it requires building a double-walled house. The walls don’t need to be the same thickness, but they both need to be thick enough to handle any structural demands and meet fire and safety standards. The insulation (usually foam or fiberglass) is then installed between the two stone walls.

Yes, you need a 1.5-inch to 2-inch air gap in a cathedral ceiling to allow proper air flow and prevent cathedral ceiling venting problems. This amount of airspace allows warm, moist air to properly leave your ceiling to avoid moisture build-up and other issues that put your home at risk. You can also add an air vent for extra air flow.

For standard 2x4 walls, the ideal insulation has an R-value between R-13 and R-15. This level of insulation, typically around 3.5 inches thick, fits well within the wall cavity. Common options include fiberglass batts and spray foam. The best choice for your home can depend on your climate; use R-value maps, like those from Energy Star, to determine the recommended level for your region. For colder climates, you might also consider adding exterior insulation for greater efficiency. Always check with your local building codes to ensure you meet any required standards.

When temperatures are too cold, it can keep ice from melting, and products like ice melt and rock salt are ineffective. Water turns to ice in temperatures below 32 degrees Fahrenheit. Ice melts on its own when temperatures reach above 32 degrees Fahrenheit. 

Ice melt loses effectiveness in temperatures below -25 degrees Fahrenheit, and rock salt works in temperatures 5 degrees Fahrenheit and warmer.

The Darien, IL homeowners’ guide to insulation services

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