Top-rated insulation pros.

Get matched with top insulation pros in Dahlgren, IL

Enter your ZIP and get matched with up to 5 pros

Need a pro for your insulation service project in Dahlgren, IL?

Select your specific project to find the pro for you.

TRUSTED BY DAHLGREN, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon14
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Dahlgren, IL

*The Angi rating for Insulation Service companies in Dahlgren, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Dahlgren, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on November 18, 2025

Find Insulation pros in Dahlgren

Signature insulation

No reviews yet

Signature insulation

No reviews yet

We offer a wide range of insulation possibilities from batten fiberglass to blow in cellulose and everything in between new construction and remodeling or if it's just adding a few inches to your attic we can help you!

We offer a wide range of insulation possibilities from batten fiberglass to blow in cellulose and everything in between new construction and remodeling or if it's just adding a few inches to your attic we can help you!

Avatar for Energy Savers SI, LLC

Energy Savers SI, LLC

4.86(
7
)

Energy Savers SI, LLC

4.86(
7
)
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Energy Savers SI is a small family owned business in Carterville, IL and has been involved in the industry for over 25 years. Specializing in air sealing, attic insulation, wall insulation, crawlspace encapsulation, bowing basement wall repair, basement waterproofing, energy audits, moisture remediation, sealed vapor barriers, siding, windows, doors, foundation repair, whole house ventilation and air quality control. Our certified energy efficiency professionals offer energy efficient upgrades for homes and businesses which can benefit you financially for years to come. These upgrades allow friends and family to experience a safer, more comfortable and economical dwelling.

"I give this company an A for doing the job for a good price. I give them an overall grade of B because if you need them to come out and make repairs on the work they just finished, you have to text message them every day to get them to come out. I have one piece of siding that needs to be put back up, and have been waiting more than six weeks because I forget to text them every day. I really want to give them an A, but I just can't. Have been waiting too long for them to re-hang that one piece of siding."

Jeff S on August 2020

Energy Savers SI is a small family owned business in Carterville, IL and has been involved in the industry for over 25 years. Specializing in air sealing, attic insulation, wall insulation, crawlspace encapsulation, bowing basement wall repair, basement waterproofing, energy audits, moisture remediation, sealed vapor barriers, siding, windows, doors, foundation repair, whole house ventilation and air quality control. Our certified energy efficiency professionals offer energy efficient upgrades for homes and businesses which can benefit you financially for years to come. These upgrades allow friends and family to experience a safer, more comfortable and economical dwelling.

"I give this company an A for doing the job for a good price. I give them an overall grade of B because if you need them to come out and make repairs on the work they just finished, you have to text message them every day to get them to come out. I have one piece of siding that needs to be put back up, and have been waiting more than six weeks because I forget to text them every day. I really want to give them an A, but I just can't. Have been waiting too long for them to re-hang that one piece of siding."

Jeff S on August 2020

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Avatar for Advanced Foam Insulation

Advanced Foam Insulation

No reviews yet

Advanced Foam Insulation

No reviews yet
16 years of experience

Advanced Foam Insulation is family owned and managed business, in which Jeff the owner will be there from the free estimate to the finished project. Jeff also does the work himself, no subcontracting. We specialize in residential & commercial.

Advanced Foam Insulation is family owned and managed business, in which Jeff the owner will be there from the free estimate to the finished project. Jeff also does the work himself, no subcontracting. We specialize in residential & commercial.

Mike Essex Contracting

No reviews yet

Mike Essex Contracting

No reviews yet
18 years of experience

Mike Essex Contracting offers competitive pricing and bids. We also offer a limited warranty and guarantee on all work of product completed by Mike Essex Contracting. No job is ever to small nor to big and completed in a timely manner.

Mike Essex Contracting offers competitive pricing and bids. We also offer a limited warranty and guarantee on all work of product completed by Mike Essex Contracting. No job is ever to small nor to big and completed in a timely manner.

Custom Construction & Remodeling

1.00(
2
)

Custom Construction & Remodeling

1.00(
2
)
27 years of experience

Custom Construction is a Licensed and Insured FULL SERVICE DESIGN and BUILD Company and General Contractor with a wide range of experience. Interior to Exterior, from A to Z one call does it all. Let our dedicated team of experts make your dreams come true. We handle all types of remodeling. We accept all major credit cards and offer financing for quailifed clients. Emergency 24/7 services available

Custom Construction is a Licensed and Insured FULL SERVICE DESIGN and BUILD Company and General Contractor with a wide range of experience. Interior to Exterior, from A to Z one call does it all. Let our dedicated team of experts make your dreams come true. We handle all types of remodeling. We accept all major credit cards and offer financing for quailifed clients. Emergency 24/7 services available

Terminix Termite & Pest Control - Aurora

2.67(
3
)

Terminix Termite & Pest Control - Aurora

2.67(
3
)
98 years of experience

Terminix protects homes and businesses, offering residential and commercial services to customers seeking effective termite and pest control. Best of all, we offer guaranteed solutions, including a money-back guarantee for pest control and the strongest residential termite guarantee in the business for qualifying properties.

Terminix protects homes and businesses, offering residential and commercial services to customers seeking effective termite and pest control. Best of all, we offer guaranteed solutions, including a money-back guarantee for pest control and the strongest residential termite guarantee in the business for qualifying properties.

Showing 1-10 of 42
Insulation questions, answered by experts

Adding insulation to ceilings is an excellent way to increase the energy efficiency of your home. If your home's layout is such that you need insulation in the ceilings rather than in the roof, it's likely that at least some insulation already exists in the space. However, each additional inch of insulation you can add boosts the R-value by between 2.2 and 4.2.

DIY installation is feasible with the right protective gear and knowledge, but professional installation ensures full coverage and maximum efficiency.

Yes, guiding choices between open-cell and closed-cell foams based on needs.

While freezing pipes are less of a concern in warmer climates, pipe insulation can still be beneficial because it helps prevent condensation on cold water pipes, reducing the risk of moisture-related issues like mold growth. It also helps maintain water temperature, reducing the energy needed to heat and cool the water, which can ultimately lower your utility bills.

Regular inspections for moisture damage, pest infestations, and proper R-value performance help maintain efficiency.

The Dahlgren, IL homeowners’ guide to insulation services

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

See all articles