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TRUSTED BY WEST DUNDEE, IL HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon185
    Verified insulation services reviews

Find Insulation pros in West Dundee

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

Serving West Dundee, 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
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Comfort 1st Insulation
Comfort 1st Insulation
4.6(
32
)

Serving West Dundee, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Everyone at Comfort 1st are wonderful to work with ! I recently got my attic insulated with them. Overall, very pleased with team and the work, I would highly recommended them. I received several quotes from competitors, but, David from Comfort 1st, was the only one to detail out all aspects of the job and was thorough in explaining the process. Mike was also great to work with and really knows his stuff. The crew who came onsite did a wonderful job in preparation and cleaned up once they were done. Overall, great communication with all team members. Once again, great company, would highly recommend them."
Evenly Applied Foam in the Band Joist
Sealing the Joist
Overview of Insulated Band Joist
Before Insulation Applied
Before Insulation - Empty Attic

+9

Response time1 day
Response rate92%
20 neighbors recently requested a quote
Avatar for Attic Air
Attic Air
4.9(
257
)

Serving West Dundee, 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 Daniel Nagel
Daniel Nagel
4.6(
42
)

Serving West Dundee, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"We reached out to Dan with the issue of freezing pipes and cold rooms in our old house. Dan inspected the house and proposed a plan to remedy these issues. Aside from the more traditional air sealing and insulation solutions, Dan also recommended insulating the area of our house above our soffit, which was difficult to access but that appeared to be a major insulation issue. I should add the other firms we requested quotes for did not identify this area in their proposal. I firmly believe the proposals from the other firms would not have fixed our issues. Dan worked for ~2 weeks on air sealing our attic and house, adding insulation to our attic, removing our soffit and adding insulation and reinstalling soffit. Work was done well and within budget and at a fair price. Dan is very easy to work with and takes pride in his work. We are very happy to report our pipes have not frozen and the cold rooms are no longer cold - would highly recommend Dan to others - he went above and beyond."
Response time1 day
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,511
)

Serving West Dundee, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"We used Perma Seal for several big projects—waterproofing our basement and replacing our concrete back yard and sidewalks. We had drain tiles, sump pumps and a dehumidifier installed, along with extensive concrete work outside. We dealt with a variety of crews and found everyone to be very communicative, professional, and knowledgeable. They did great work and kept us informed at every step of the process. When we had a questions, they were very responsive. All in all, we'd recommend and use them again."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate94%
60 neighbors recently requested a quote
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Insulation questions, answered by experts

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Costs depend on insulation material, labor, accessibility, and whether existing insulation requires removal.

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

Minimal maintenance is required, though regular inspections to ensure insulation hasn't shifted or deteriorated can improve performance over time.

Energy-efficient homes generally have higher appraisals and appeal to buyers.

The West Dundee, IL homeowners’ guide to insulation services

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