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Find Insulation pros in Belvidere

Avatar for Elite Insulators
Elite Insulators
4.8(
21
)

Serving Belvidere, IL and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"These guys came out right away, gave me a fair price and did the job great ! The toughest part was removing old insulation, getting it out of my house and cleaning it all up. They did all that and sealed up my basement tight ! Using their foam insulation they filled in all gaps. And they did it in one day ! We now notice our house stays a little warmer and no more mice ! Kyle and his crew were fantastic and I recommend them highly. -- Alan B - Sun Prairie"
Cathedral Ceilings
Ceiling/Wall
Walls
Amish Ice Box
Amish Ice Box

+56

Response time2 days
Recommended by57%of homeowners
Avatar for Peak Performance Insulation LLC
Peak Performance Insulation LLC
5.0(
10
)

Serving Belvidere, 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%
16 neighbors recently requested a quote
Avatar for Daniel Nagel
Daniel Nagel
4.6(
42
)

Serving Belvidere, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Dan did a great job insulating my attic. He did exactly what he said he would do, on time and at the quoted cost. He was very thorough in his work, applied foam sealant, installed baffles, installed bathroom vent access thru roof and installed blow in insulation. Nice guy as well. I'd hire him again."
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 Belvidere, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"George came out promptly and did a thorough inspection of the crawlspace and provided options on what can be done. The insulation work was performed by Jesus who also found and fixed two foundation cracks. Encapsulation was done by Juan's team and they all did a great job. They were able to perform all the work with a very narrow opening into the crawlspace and were also able to fit in the dehumidifier. After installation there was a minor issue with the dehumidifier and Craig came right away to fix it. Great experience and I'd definitely use their services in the future if need be."
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
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
264
)

Serving Belvidere, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"The Home Genius Exteriors team does excellent work. From the initial quote to the final walk through they are professional, patient, and, perhaps most importantly, available. I'm not completely "roofing naive" and I can say that their craftsmanship is top notch. They are a bit pricey in my opinion BUT I believe it to be a "you get what you pay for situation." You will certainly be in safe and certain hands with Mike, Walter, Luis and company. I would 100% keep them in mind for future projects."
1634 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
263
)

Serving Belvidere, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Devan, Lauren and Brendan were my main points of contact with Home Genius Exteriors and they showed professionalism and personality throughout the whole process. Both Brendan and Devan spent time taking to me, even after our business was concluded, this was an exceptional experience and I highly recommend Home Genius Exteriors and all their employees."
Recommended by87%of homeowners
Avatar for Window Works, Inc.
Window Works, Inc.
3.3(
180
)

Serving Belvidere, 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
My Property Masters
3.7(
210
)

Serving Belvidere, IL and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"I was a little disappointed that I could not have what I really wanted so had to settle for the next best thing which would not be my first choice I ended up having a drape to cove my washer and dryer but I really wanted doors but all in all it turned out ok"
Response time8 hrs
293 neighbors recently requested a quote
Recommended by64%of homeowners
Showing 1-10 of 35

FAQs for insulation service projects in Belvidere, IL

Local and federal rebates are available for insulation installation, which can significantly reduce your overall costs. Many utility companies offer incentives or rebates to homeowners who improve their home's energy efficiency. Contact your local energy provider or government agencies to learn about available programs in your area, and consult with a professional insulation installer to maximize your savings.

It's not necessary to remove old insulation before adding new insulation, as long as the existing insulation is in good condition—dry, free of mold, and not damaged. Adding new insulation on top of old insulation can improve your home's energy efficiency by increasing the overall R-value. However, if the old insulation is wet, moldy, or damaged, it's best to remove it before installing new insulation to prevent potential health risks and ensure optimal performance.

Insulating a house takes between five and twelve hours for batts or boards, and two to five hours for spray foam or blown-in insulation. The exact time depends on the size of your home, the type of insulation, and the accessibility of the areas being insulated. Keep in mind that projects may take longer if old insulation needs removal, if there's a larger square footage, or if spaces are difficult to reach.

The Belvidere, IL homeowners’ guide to insulation services

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

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