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TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon118
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Cortland - Updated Nov 2026

Avatar for Peak Performance Insulation LLC
Peak Performance Insulation LLC
5.0(
29
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, 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 rate97%
92 neighbors recently requested a quote
Avatar for GreenLink Energy Solutions, Inc.
GreenLink Energy Solutions, Inc.
4.7(
60
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Emily was the product manager - she assessed the insulation we had, which was very inadequate, and gave us a range of upgrade options. A team of three guys did the work, solving some of our problems in a very resrouceful way. Then Emily came back and checked everything over. We were very happy with both the work performed and the customer service. The house feels unusually toasty now. We'll update this review in the spring after we see if we get our usual ice dams - hoping they're gone forever."
Infrared Light Switch
Combustion Test
Water Heater Combustion Test
Cellulose Insulation Installation
Air Sealing Can Lights

+12

Response time1 day
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
265
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I am very pleased with my new windows. I used Home Genius Exteriors to do my roof, gutter protection, and now Windows. This is an absolute amazing company, my salesman brendan was very helpful, Devan the Project Manager helped make sure everything went smoothly. Walter and Mike also from production were very friendly and professional. And Shawn, the window installer was polite,knowlagable, and efficient. And even cleaned up on his way out. Next on the agenda is to get a new door taken care of. Highly recommend HGE"
Windows
Windows
Windows
Windows
Windows

+58

Recommended by87%of homeowners
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,538
)
Blown-In Insulation - Install or UpgradeInsulation - Install or Upgrade

Serving Cortland, 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

Response time1 day
Response rate100%
47 neighbors recently requested a quote
Avatar for Hawx Insulation- Chicago
Hawx Insulation- Chicago
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, 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

12 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Euro Home Insulation
Euro Home Insulation
5.0(
6
)
Blown-In Insulation - Install or Upgrade

Serving Cortland, 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 time5 hrs
Response rate100%
Avatar for GF Company
GF Company
4.6(
152
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"Came in morning to install Leafproof system and were done by 4:00 pm. Cleaned up everything and made sure my roof heater tapes were installed correctly. Wiil see how they work this winter. If work well will install rest of house next year.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Recommended by93%of homeowners
Showing 1-10 of 38
Drywall Insulation FAQs, answered by experts

There are several benefits to wet-sanding drywall, but the main perk is that it produces far less dust than dry-sanding. As a result, wet-sanding poses fewer health risks and makes less of a mess in your home. Plus, damp sponges are less abrasive than sandpaper, so there’s a smaller chance of scratching or damaging the drywall paper. Wet-sanding also creates a smoother finish than dry-sanding.

Furring strips, thin strips of wood or metal, are not always required for ceiling drywall installation. If the ceiling surface is even and in good condition, drywall can be directly attached to the ceiling joists using screws. However, furring strips become essential when dealing with irregular surfaces or when additional insulation or soundproofing is needed. They create a level substrate for attaching the drywall. Ultimately, the decision to use furring strips depends on the condition of the existing ceiling and the specific requirements of the project.

Costs range from $500 to $5,000, depending on damage size, labor, and finishing requirements.

Depending on how much adhesive was used as well as the strength of the adhesive, you may have some drywall damage when removing a mirror. You can typically repair most drywall damage if it’s small by sanding the damaged area, applying spackle to smooth the damaged section so it’s flush with the rest of the wall, and repainting the area.

Water-damaged drywall should almost always be replaced. Not only does it look bad, it’s a breeding ground for toxic mold. Even if you think the area is dry and there’s no active leak, the only way to be sure is to cut out the damaged area and see for yourself.

The Cortland, IL homeowners’ guide to drywall insulation services

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