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TRUSTED BY SULLIVAN, WI HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon74
    Verified insulation services reviews

Find Insulation pros in Sullivan

Avatar for THERMAL COMFORT INC
THERMAL COMFORT INC
4.9(
45
)
Spray Foam Insulation - Install

Serving Sullivan, WI and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Thermal Comfort exceeded my expectations for scheduling my project, and the quality of their work is excellent. They did a great job of protecting everything prior to application, and the cleanup was done well. As a retired architect and professional engineer, I expect and watch for quality, and was very pleased with this company. I recommend this company to anyone requiring a foam insulation project of fine quality and a good value."
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+4

Response time2 days
Recommended by97%of homeowners
Avatar for USA Insulation of Madison
USA Insulation of Madison
4.9(
50
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Sullivan, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Credit card accepted

"I called 5 Insulation companies for estimates in Oct.2025, when we were having other work done to our home & discovered we had No insulation between the studs. USA 🇺🇸 Insulation was the most expensive but they were the most thorough during the sales process, as far as explaining how everything was to be done & showed me photos. They were the ONLY company that offered the blown in expansion Insulation. Which is what made the job a little more costly, but they used the best product because it doesn't settle over time, which to me made it worth it. They came on Dec.15th which was a VERY cold day, with a 4 man crew,each with a specialized task, (Foreman, siding removal, hole driller, foam insertion). They were very professional, answered all my questions, cleaned up my property when done & did a heat camera procedure that showed me how the walls were cold before hand & were already warming by end of job. I highly recommend this company to anyone needing to have this done."
Foam insulating a wall
USA Insulation Premium Foam
Attic Insulation
USA Insulation Blown Fiberglass
Arkdale, WI

+24

Response time1 day
Response rate100%
50 neighbors recently requested a quote
Avatar for Elite Insulators
Elite Insulators
4.8(
21
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Sullivan, WI and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Kyle wen above and beyond my expectations! Very professional and knowledgeable! Every business should have someone like Kyle. I would highly recommend Elite Insulators. I have other projects coming up and he is already hired! Lol! THANK YOU Kyle!!"
Cathedral Ceilings
Ceiling/Wall
Walls
Amish Ice Box
Amish Ice Box

+56

Response time2 days
Recommended by57%of homeowners
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

"Excellent company ! Prompt customer service, great value, answered all of our questions. Yard was spotless after completion of the new roof. We have referred Modern exterior to our friends and family."
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%
179 neighbors recently requested a quote
Avatar for Larson Home Services
Larson Home Services
5.0(
4
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

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
6 neighbors recently requested a quote
Recommended by75%of homeowners
Hawx Insulation- Milwaukee
New to Angi
Blown-In Insulation - Install or Upgrade

Serving Sullivan, WI 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

1 neighbors recently requested a quote
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.

88 neighbors recently requested a quote
Showing 1-10 of 34
Insulation questions, answered by experts

Yes, insulating your pipes can reduce plumbing noises because it dampens vibrations and reduces the transmission of sound, making your home a quieter place. So if you've ever been annoyed by the sounds of water rushing through your pipes or the clanging noises when someone turns on the faucet, insulation can help.

Although the cost might seem high, winterizing your home is important for your health and the structural integrity of your home. Winterizing will keep your home warm and toasty during the cold months and prolong the life of your appliances, windows, pipes, sprinkler system, pool, and more. 

R-30 insulation is better for higher thermal resistance, but whether it’s "better" depends on the application. R-30 is much thicker and suited for areas like attics or floors in cold climates, where more insulation is required. R-13, on the other hand, is thinner and works well for 2x4 walls or milder climates where less insulation is sufficient. Choosing between R-13 and R-30 depends on the area being insulated and the climate. For example, R-30 provides more insulation but may not fit everywhere in your home.

Buying a house with vermiculite insulation is not recommended without going through a proper testing process. Vermiculite insulation can potentially contain asbestos, which poses health risks when disturbed. While it is possible to purchase a home with vermiculite insulation, you should have it tested for asbestos, and ensure proper containment if asbestos is present. If asbestos is present, you will want to hire a professional to remove it, ideally before you move in.

Ductwork should be wrapped in insulation in certain locations. This includes unconditioned interior parts of the home, such as attics, crawl spaces, basement ceilings, and between floors. Duct joints should also be insulated since they're more likely to leak air than other parts of your system. Building codes in some areas also require ductwork to be insulated.

The Sullivan, WI homeowners’ guide to insulation services

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