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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(
28
)
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%
86 neighbors recently requested a quote
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,535
)
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

17 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%
Saunders Insulation Specialist
4.6(
14
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Cortland, IL and surrounding areas

In business since 1995

Free estimates

"Knowledgeable, polite, professional, easy to work with Shane is polite, efficient, and knowledgeable about the different types of insulation products, and their applications. Steven and Shane, a father and son team, provided an accurate estimate of cost and installation time. They explained the variety of options available for our applications, with pros and cons for each choice (including the cost and installation time.)"
Recommended by100%of homeowners
Showing 1-10 of 37
Drywall Insulation FAQs, answered by experts

It’s highly recommended to use studs for a TV mount. The last thing you want is to be watching your favorite show when the TV falls off the wall. Studs are much stronger than drywall and quite a bit stronger than drywall anchors but, if you can’t find the studs or there simply aren’t any where you need them, you can use drywall anchors. It’s extremely important to make sure the anchors are rated for the load of the TV. We recommend using anchors that are rated far beyond the weight of whatever you’re hanging. Our suggestion is metal drywall toggle anchors. 

The two most common drywall thicknesses for ceilings are 1/2-inch and 5/8-inch. For most standard residential applications, 1/2-inch drywall is sufficient and widely used. It provides adequate support and is lighter and easier to handle during installation compared to thicker sheets. However, 5/8-inch drywall is often used for specific cases where additional benefits are needed. It is heavier but provides superior sound dampening and fire resistance. You should consider using 5/8-inch drywall for ceilings in commercial buildings, between a garage and a living space, or above a finished basement to meet building codes or for enhanced soundproofing.

To maintain plaster walls, inspect them regularly for cracks and seal them early. Clean the walls by dusting regularly or using a gentle, damp cloth. It's also important to avoid moisture exposure. Repainting as needed will help maintain the wall's appearance and longevity.

You should stagger drywall sheets to help prevent cracking. The joints between drywall sheets are the weak spots, so if you install drywall with seams aligned, you’ll create weak lines that run across the length of the wall and extend from floor to ceiling. But when you stagger drywall, the solid sections of panels will support the joints. This can prevent seams from cracking or separating due to fluctuating temperature and humidity, vibrations from movement inside the home, and gravity.

Plastering lasts for around 15 to 20 years without needing repairs or maintenance in most cases, and with proper upkeep, plastering can last a lifetime—sometimes more than 100 years. Plaster repair costs between $1 and $3 per square foot, and you may need these services once every 15 to 20 years or so unless you have a harsh climate where humidity changes are a constant issue. You can also opt to skim-coat plaster for between $0.90 and $1.30 per square foot, which may serve you better in the long run.

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.