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TRUSTED BY MERRIMAC, WI HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon41
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Merrimac, WI

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

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

Last update on June 18, 2025

Find Insulation pros in Merrimac

Avatar for Best Insulation
Best Insulation
5.0(
22
)

Serving Merrimac, 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 time4 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for USA Insulation of Madison
USA Insulation of Madison
4.9(
50
)

Serving Merrimac, 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%
48 neighbors recently requested a quote
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Avatar for Elite Insulators
Elite Insulators
4.8(
21
)

Serving Merrimac, 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
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Avatar for Koala Insulation of Madison
Koala Insulation of Madison
5.0(
7
)

Serving Merrimac, 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
25 neighbors recently requested a quote
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Avatar for Larson Home Services
Larson Home Services
5.0(
4
)

Serving Merrimac, 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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RetroFoam of Wisconsin Inc.
New to Angi

Serving Merrimac, 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.

30 neighbors recently requested a quote
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Avatar for WiscoFoam
WiscoFoam
New to Angi

Serving Merrimac, WI and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

Welcome to WiscoFoam! We always provide high quality work that produces an exceptional product. We pride ourselves on the relationships we build with all of our clients, and we cannot wait to hear from you. Call today!

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Avatar for Patriot Spray Foam L.L.C.
Patriot Spray Foam L.L.C.
New to Angi

Serving Merrimac, 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
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Showing 1-10 of 26
Insulation questions, answered by experts

The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important. 

Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency. 

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s license lookup tool to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.

Yes, insulated vinyl siding increases the R-value of your home. Depending on the quality and brand of the insulated vinyl, you can get an R-value that is up to 5 times greater than traditional vinyl siding. This can be fantastic for homeowners who are trying to lower their utility costs.

The R-value is a rating that measures an insulation's thermal resistance—in other words, how well it insulates. A higher R-value provides more protection for your pipes, and all pipe insulation materials should have an R-value listed on the product description or label. Each insulation type has its own R-value, which typically falls between one and five for most pipe insulation. When making a selection, Energy.gov recommends choosing a pipe wrap that is at least one inch thick, and the International Code Council (ICC) suggests choosing a material with an R-value of at least 3.

The Merrimac, WI homeowners’ guide to insulation services

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