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TRUSTED BY SULLIVAN, WI HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon128
    Verified drywall insulation services reviews

Verified Reviews for Drywall Insulation pros in Sullivan, WI

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

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

Last update on May 10, 2026

Find Drywall insulation pros in Sullivan

Avatar for USA Insulation of Madison
USA Insulation of Madison
4.9(
50
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Sullivan, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Credit card accepted

"The company does installation of insulation. But it does not do removal of existence contaminated insulation."
Foam insulating a wall
USA Insulation Premium Foam
Attic Insulation
USA Insulation Blown Fiberglass
Arkdale, WI

+24

Response time1 day
Response rate89%
53 neighbors recently requested a quote
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Avatar for Elite Insulators
Elite Insulators
4.8(
21
)
Injection Insulation - Install

Serving Sullivan, WI and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Owner Kyle Driessen and his team were prompt, courteous, and highly knowledgeable. They provided a thorough assessment of my home’s insulation needs and offered clear, honest recommendations without any pressure. Their expertise in spray foam insulation was particularly impressive, ensuring that every nook and cranny was properly sealed."
Cathedral Ceilings
Ceiling/Wall
Walls
Amish Ice Box
Amish Ice Box

+56

Response time2 days
Recommended by57%of homeowners
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Avatar for Modern Exterior
Modern Exterior
4.5(
31
)
Blown-In Insulation - Install or Upgrade

Serving Sullivan, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Great communication, great cleanup , great service. Would definitely use again. Thanks to the great crew for a great new roof!"
New roof installed
Completed Roof and Skylights Project
Ridge vent replacement completed
New vent being installed
New home with new gutter gguards

+600

Response time5 hrs
Response rate99%
170 neighbors recently requested a quote
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Avatar for Larson Home Services
Larson Home Services
5.0(
4
)
Blown-In Insulation - Install or Upgrade

Serving Sullivan, WI and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Salesman was very professional. Showed up in a vehicle worth the name on the side and in a uniform. Made a video of the bad area of our gutters and explained in detail what problems this would cause and had a very good presentation about the company and product."
Response time2 hrs
9 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Thermal Exteriors INC
Thermal Exteriors INC
New to Angi
Blown-In Insulation - Install or Upgrade

Serving Sullivan, WI and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

A dedicated approach to providing solutions for your home.\n\n\nThermal Exteriors\n“Shielded with Integrity”

Photos of projects
Photos of projects
Photos of projects
Photos of projects
Photos of projects

+6

32 neighbors recently requested a quote
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RetroFoam of Wisconsin Inc.
New to Angi
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Sullivan, WI and surrounding areas

Approved (Corporate)

Free estimates

Credit card accepted

Offers commercial services

RetroFoam of Wisconsin specializes in RetroFoam injection foam insulation for existing walls, helping homeowners improve comfort and energy efficiency without the mess or disruption of a full remodel. Our insulation solution is designed to reduce drafts, help maintain consistent indoor temperatures, and make homes more comfortable year-round. We serve homeowners across the state. Whether you live in a historic home or a newer build, our team provides a proven insulation solution tailored to your needs.

26 neighbors recently requested a quote
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Avatar for JSL QUEZADA COMPANY LLC
JSL QUEZADA COMPANY LLC
New to Angi
Blown-In Insulation - Install or Upgrade

Serving Sullivan, WI and surrounding areas

Approved

Offers commercial services

I am a private owner that has 7+ years of experience in concrete, foam insulation installation, fence, carpentry as much more. We serve the Milwaukee and surrounding area.

Comcret slab
2 neighbors recently requested a quote
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Avatar for A Leon Drywall Corp
A Leon Drywall Corp
4.9(
16
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Sullivan, WI and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"The drywall was schefuled & completed in a timely manner. Angel was very professional and efficient with his work. We would hire him again."
Drywall Project
Drywall Project
Drywall Project
Drywall Project
Additional Photos

+21

Recommended by100%of homeowners
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Showing 1-10 of 27
Drywall Insulation questions, answered by experts

If your home was built before the 1940s and was not remodeled in the past 50 or so years, you probably have plaster walls. Aside from assuming, there are some practical ways to tell if you have plaster walls, including the following: If you knock on the wall and it feels solid, not hollow, if you can’t insert a thumbtack easily, if there are cracks that look like spiderwebs, or if your home has curved, arched, or swirled walls, doorways, or window openings.

If you have an unfinished basement or attic, you could examine the backs of any finished walls to check, too.

Plaster ceilings can sag for several reasons. In some cases, the plaster and other building materials shift and come apart over time, which is why you’ll commonly find drooping plaster ceilings in older homes. Improper installation, foot traffic, and water damage—often from a leaky roof or a broken pipe—can also cause plaster ceilings to sag.

A local drywall contractor can texture your drywall for you. Drywall contractors are a better choice than general handy people because the contractors have a lot of experience working with drywall mud. The process is somewhat of an art thanks to the complexity of working with the mud, so call in a drywall pro who knows what they’re doing.

Yes, taping inside corners is a critical step in the drywall installation process.  Properly taping inside corners is essential for achieving a professional look, and an installation that resists cracking and maintains its integrity over time. Taping the corners involves the application of a joint compound along the seam where two drywall pieces meet. This process provides reinforcement, conceals the seam, and prevents future gaps or cracks from developing.

Applying plaster to a wall will usually cost between $2 and $10 per square foot for both the material and labor. The cost will vary based on the quality of the plaster you’re using and whether or not prep work is required before the work begins. Wall prep can add up to about 10% to your total costs. Plastering exterior walls can be more expensive in many cases because they are taller and require scaffolding and safety equipment.

The Sullivan, WI homeowners’ guide to drywall insulation services

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

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