3.8 
64 *The Angi rating for Insulation Service companies in Beloit, 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 Beloit, 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 January 04, 2026
Serving Beloit, 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."
+24
Serving Beloit, 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."
+56
Serving Beloit, WI and surrounding areas
Approved
In business since 2007
Free estimates
With over 10 years of experience in the insulation industry, we are the service professionals you need to take care of your home or business. We handle all types of insulation projects. We will treat your home as we would treat our own. Give Spray Foam Genie a call today, we look forward to working with you!
Serving Beloit, 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.
Serving Beloit, WI and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
Were 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
Serving Beloit, WI and surrounding areas
In business since 1977
Free estimates
Credit card accepted
"They did an excellent job the opening to the crawl space had to expanded to allow entry of a man, and Saunders was able to do this. They installed a bathroom fan , so that the fan could be vented to the outdoors instead of into the Attic. Saunders personnel were able to tell me what they saw while down in the crawl space, which included other issues that I will need to resolve in the future, but which I'm glad to be made aware of. Per my brother who is an engineer, Saunders did an excellent job of both lining and insulating the crawl space and insulating the attic. My brother is picky so I can recommend Saunders installation specialist."
+5
Serving Beloit, WI and surrounding areas
In business since 2025
Free estimates
Emergency services offered
"What a very good amazing job they did I recommend a 5 star they took their time everything just looks perfect."
+1
Serving Beloit, WI and surrounding areas
In business since 1977
Credit card accepted
"Saunders installed a bath exhaust fan and light as well as attic insulation for us. Very professional and efficient - a timely installation, performed very soon after contract was written. Great people to work with and great cleanup after. Highly recommend. Also Home Advisor worked well; contact was made within hours of submission."
Serving Beloit, WI and surrounding areas
In business since 1995
Free estimates
Credit card accepted
"The three men involved in the installation were courteous, professional, knowledgeable and efficient. The entire project was done within about 3 hours and the results are absolutely amazing! We LOVE the light these Solatubes provide and may get one or two more. I wish we'd done this sooner!
"
Serving Beloit, WI and surrounding areas
In business since 1976
Free estimates
"Went great..we chose parco windows, mastic siding with versetta stone accent on the front. The stone was a first for Schloesser Construction so the researched 1st and came prepared. The did a wonderful job and we are very please. Mike was diplomatic in guiding us with our choices and helped us make solid choices. Very pleased with quality, looks of the work/products. Steve and his crew were fantastic as well. Sorry for all the wasps guys."
From average costs to expert advice, get all the answers you need to get your job done.
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.
