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TRUSTED BY COTTAGE GROVE, WI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon104
    Verified insulation services reviews

Find Insulation pros in Cottage Grove

Avatar for Best Insulation
Best Insulation
5.0(
22
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Owners did the estimate, were on site for the insulation install...what more can be said about customer service! They were 5+. Now I must tell you about the job...it was difficult adding insulation to the underside of floor boards in our crawl space. Other insulators said it couldn't be done. Kelly took her flashlight, measuring tape and looked really hard and said "We can do this!" What a "can do attitude" and they accomplished it. I will definitely use them again and so should you!"
16 foot foam trailer
150 foot heated foam hose
Inside of foam trailer
Truck holding additional foam barrels
Graco A-25 machine

+22

Response time5 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Elite Insulators
Elite Insulators
4.8(
21
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Cottage Grove, 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 Koala Insulation of Madison
Koala Insulation of Madison
5.0(
7
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

At Koala Insulation of Madison, we’re all about making your space more comfortable and efficient. We believe in doing things right, with a personal touch that sets us apart. From top-notch products like spray foam insulation to friendly service, we’re here to help you achieve the perfect insulation solution for your home or business.\n\nDiscover why our customers love working with us and how we can make a difference for you!\nGet a Free Estimate\n

Waunakee Attic
Prep work
Response time1 day
34 neighbors recently requested a quote
Avatar for Modern Exterior
Modern Exterior
4.5(
31
)
Blown-In Insulation - Install or Upgrade

Serving Cottage Grove, 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%
161 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 Cottage Grove, 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
7 neighbors recently requested a quote
Recommended by75%of homeowners
RetroFoam of Wisconsin Inc.
New to Angi
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Cottage Grove, 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.

80 neighbors recently requested a quote
Avatar for Patriot Spray Foam L.L.C.
Patriot Spray Foam L.L.C.
New to Angi
Spray Foam Insulation - Install

Serving Cottage Grove, WI and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We’re a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!\n

Response time10 hrs
Showing 1-10 of 36
Insulation questions, answered by experts

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process. 

A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.

Air sealing isn't necessary for attic insulation, but it's incredibly helpful since it can help you identify and patch any existing air leaks. Failing to find these leaks before adding insulation can render your insulation less effective, leading to higher energy bills and potentially costly repairs down the line.

Yes, it is possible to have too much insulation, which can have detrimental effects. While more insulation might seem better for energy efficiency, a home needs to "breathe" or ventilate to release moisture that accumulates inside. Over-insulating can seal a house too tightly, trapping water vapor and leading to several problems, including mold, mildew, and condensation. Homes in warm, humid climates are particularly susceptible to mold, while those in colder climates can experience condensation from temperature fluctuations. Additionally, adding more insulation than the recommended amount for your climate may not provide recoverable energy savings. To avoid these issues, consult a professional insulation contractor who can determine the optimal amount of insulation for your home.

Depending on the size, insulation condition, and removal method, it can take anywhere from four hours up to twenty hours. Therefore, be prepared to split the projects into phases, or leave it to a professional. Insulation is an intermediate project with various risk factors and can be challenging to someone unfamiliar with the process.

The Cottage Grove, WI homeowners’ guide to insulation services

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