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  • Average homeowner rating star icon3.7
    Average homeowner rating
  • Verified reviews icon51
    Verified insulation services reviews

Find Insulation pros in Dekalb

Avatar for Peak Performance Insulation LLC
Peak Performance Insulation LLC
5.0(
14
)

Serving Dekalb, 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 time12 hrs
Response rate87%
53 neighbors recently requested a quote
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,516
)

Serving Dekalb, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"The Permaseal team was excellent and did a great job. They did everything for insulating my attic with incredible professionalism. Always kept me in the loop and left the job site clean every day. I would highly recommend them"
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

54 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
263
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Fast work. Great communication up until trying to communicate with project manager. Was told everything would be completed within two days. The roof was done in one which was awesome, but I am still waiting on gutters a week later and won't be given a day/time for them. Just keep being told "early next week" or "tomorrow". Sales portion and inspection went great. Fantastic everything up until the install."
Recommended by87%of homeowners
Hawx Insulation- Chicago
4.1(
361
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
Avatar for Neil Umphress construction
Neil Umphress construction
4.9(
22
)

Serving Dekalb, IL and surrounding areas

In business since 2000

Emergency services offered

Warranties offered

"Outstanding work , got the job done quickly and left the job site spotless all at a very competitive price. Would most certainly recommend them for any insulation work."
Blown-in
blown-in
insulation
blown-in insulation
blown-in

+11

Response time12 hrs
Response rate87%
3 neighbors recently requested a quote
Avatar for USA Insulation South Elgin
USA Insulation South Elgin
4.4(
25
)

Serving Dekalb, IL and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"USA Insulation came out and blew in the pink stuff up to R49. The crew arrived on time, was professional and very thorough with what they were going to do before starting, communicating during of their progress and then a 'show and tell' after the work was completed. Cleanup afterwards let my house cleaner than before they showed up and only took them around 1 1/2 - 2hrs from start to finish (for a 1425 sq ft attic). The entire process, from start to finish, exceeded my satisfaction and we will most certainly be recommending USA Insulation to our friends and family."
New Construction Injection Foam Install
Removing Siding for Injection Foam Install
Exterior Install of USA Premium Injection Foam
Drilling Holes for Exterior Install of USA Foam
Siding Removal for Exterior Injection Foam Install

+2

Response time11 hrs
Recommended by86%of homeowners
Avatar for Euro Home Insulation
Euro Home Insulation
5.0(
6
)

Serving Dekalb, IL and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"I hired this company to do Blown in insulation in my attic, the job was done very efficiently, as well as professionally, the workers were very diligent in duties as well as very respectful. I recommend this company."
Attic insulation
Attic insulation
Attic insulation
Attic insulation
Attic insulation

+4

Response time10 mins
Showing 1-10 of 44
Insulation questions, answered by experts

Mineral wool wraps are the most affordable and effective insulation for crawl space ducts. They are easy to cut, last for a long time, and healthier for humans. Meanwhile, fiberglass wraps are cheaper but more hazardous and difficult to handle. If you do choose to use a fiberglass wrap, make sure you are wearing long sleeves and wear proper protective gear.

Natural fiber batts and spray foam insulation both work great for soundproofing. Newer materials, such as hemp batts, are more expensive but more effective for insulation and sound blocking. They are also more sustainable. There is also a professional system called Blow-In Blanket Insulation (BIBS) that is soundproof and moisture-resistant. However, BIBS must be installed professionally and can be a costly investment.

If the temperature outside is around 90 or 100 degrees with the sun beating on your home’s roof, it’s common for the attic temperature to reach 150 degrees or more. This excessive heat shows the importance of having a radiant barrier in place along with insulation. The radiant barrier reflects the heat entering the attic back upward, keeping your home’s temperature more consistent.

We do not recommend fiberglass insulation for soundproofing purposes, especially if you are working on a room that’s part of your living space. Fiberglass insulation is dangerous, and the installation process is hazardous. It is also harmful to the environment. When there are so many newer, healthier non-fiberglass alternatives in the market, the lower cost of fiberglass insulation simply doesn’t justify the harm and danger it poses.

Each of the three types of wool insulation has particular disadvantages. While their R-value is higher, they all cost more than fiberglass versions. Installing mineral wool and sheep wool requires protective gear. Because of its vulnerability to insects, chemicals are used in its production. Hemp wool is more costly to install than other types because additional tools and labor are involved.

The Dekalb, IL homeowners’ guide to insulation services

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