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Top-Rated Batt, rolled or reflective insulation install or upgrade pros in Cottage Grove - Updated Nov 2026

The Spray Foam Works, Inc.
4.7(
17
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

Approved

In business since 2009

Free estimates

Offers commercial services

"Great job at an appropriate price. My project took a few months to be ready for insulation, and Aaron of Spray Foam Works always returned my updates and questions within a day. No complaints whatsoever."
Response time2 days
21 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Koala Insulation of Madison
Koala Insulation of Madison
5.0(
7
)
Batt, 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
45 neighbors recently requested a quote
Warnecke Insulation
4.9(
7
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

Warnecke Insulation is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

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Response time50 mins
2 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Saunders Insulation Specialists
Saunders Insulation Specialists
5.0(
6
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, 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."
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+5

Recommended by100%of homeowners
Avatar for GF Company
GF Company
4.6(
152
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"In 2017, when I was looking to purchase a house in the Rockford area that was needing a full siding install I contacted GF Company in Belvidere. IL, who I found on Angie’s list and at that time GF Co had great reviews. Strangely enough these great reviews are no longer to be found on Angie’s List. It should also be noted there is a GF Siding in Cherry Valley. IL, this is Not the company that I did business with. Ariel Zmijewski (the owner) got me a quote quickly and I decided to purchase the house. A few months later in July 2017, I contacted Ariel again to discuss the finer points of the quote, the price was revised slightly and the Ariel mentioned that once a deposit was paid work could start 6-8 weeks later, but said the install would be finished before the cold weather arrived. I started creating a color layout and Ariel provided some feedback on what would work and not work. To this point I was very happy with progress. In September 2017 I paid a deposit of over $8k (about 44% of final price) and awaited updates for a start date. Nothing happened. In early March 2018 I contacted GF Co by phone stating that I had been very patient and they had had $8k as a deposit for the last 6 months and I had nothing to show for it. After a couple more calls and emails Ariel showed up with his foreman Mark and they said that work would start in the middle of the following week. Much to my surprise the work started on time. Over the course of the next 4 weeks Mark and his crew worked hard, only missing a few days due to bad weather, I even agreed to having some extra work done by the team, some wooden entrance steps that needed replacing for an additional $2.5k. By early May 2018 the job was finished the house looked great and I was very happy with the work and appearance and was getting compliments from neighbors too. The balance of owed of over $10k was paid with 48 hours of the work being finished. Again I was happy with work done, until… A few months after the install a TV cable box started having troubles. Cut a long story short the wall socket died because cable was suddenly defective, also the crew had moved the exterior cable input box and this didn’t help the issue. Comcast fixed it, but I now have an exterior cable showing and they had to drill through the siding. Then around Halloween 2018, less than six months after having the install completed, I noticed that a piece of siding (6ft approx.) had become detached underneath a window, trying to pop it back into place did not resolve the issue. After checking all the other exterior windows I noticed 1 other window was about to do the same thing. I called the GF Company main number and left a message with the receptionist for Ariel to contact me. No response. I called again a couple of times and left more messages still no response. In March 2019 siding problem under windows still Not fixed, I called GF Company again, no answer, and no voice mail. I called a couple more times on different days still no answer or voice mail. I then sent an email to the company and to my surprise I received a response from Ariel stating this was the first that he had heard of it. About a week later (3/26/19) he showed up at my house to view the problem. Ariel stated that he would get someone over to fix the problem, but would not give me a date or time. On 4/2/19 I emailed Ariel again asking for confirmation of a repair date ? Nothing but crickets… On 4/30/19, I sent another email to Ariel requesting that the repairs be completed before the end of May 2019, again no response. Quote / contract says: Customers will receive a Lifetime Warranty on Material and Workmanship Reported GF Company to Illinois BBB on 6/5/19."
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+19

Recommended by93%of homeowners
Avatar for Airtight Insulation & Remodeling, LLC
Airtight Insulation & Remodeling, LLC
3.7(
32
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"They are very diligent and responsive. The project was very large and they worked hard at getting it complete on time and did a very nice job at cleaning up. Hardworking crew and took pride in their work. This was one of their largest jobs and did a nice job at following through and tiding up all the loose ends. If your are looking for a hard working crew that care about the job they do, I would definitely recommend this company for your spray foam insulation needs. You will not get a more fair price and hard working crew. Two thumbs up from me."
SPRAY FOAM OF CEILING
FRONT ENTRANCE OF SHANTY
SPRAY FOAM OF EXTERIOR CAVITIES
SPRAY FOAM OF EXTERIOR CAVITIES
NEW HOME CELLULOSE

+68

Response time2 days
Recommended by76%of homeowners
Avatar for Schloesser Construction
Schloesser Construction
5.0(
11
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

In business since 1976

Free estimates

"We are real happy with them. He doesn't advertise, it is all word of mouth. He is very good.
It was a year long project, from July to July. There was a lot of work done. It was a fair price. It wasn't the most expensive, it wasn't the cheapest, it was fair. You get what you pay for.
They sided the garage, they sided the shed, they sided the house, they installed windows, they installed doors. They did some fabrication work. They closed up windows that we didn't want and doors that we didn't want. They worked with us, if we could buy the materials cheaper. We bought certain things, they bought certain things. They were real workable. They gave us their advice. They listened to the customer and what the customer really wanted. He came out numerous times over that year and  he broke the job down into sections. So, like, the shed was so much and the garage was so much and the house was so much. He'd come out and sit down and have coffee with us and say, okay, this section is going to be this much, I need half down and when the job was down he would come and get his money. He was very prompt about that. Very much on top of it all, anything that we didn't think was right, they fixed. If they were going to do it one way and I didn't think it was right, Mike would come out and say, you know you're right. A lot of guys just come and slap the siding on. they did a lot of extra work before you get to the siding part where the owner wouldn't notice but 15 years from now, you'd notice. I'm real happy with him and his workers. He does subcontract the door installation because he has a guy that is very meticulous about doors. We had a dutch door put in. This guy specializes in putting in doors, that's all he does. It took him three days to install the door but it's perfect. Mike pays this guy per door, so it doesn't matter if it takes him a day or three days but he is very good at what he does.
We went around to look at Mike's work. He gave us addresses and we went around to look and talk with people that had his work and they were real happy with him."
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Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
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+2

Recommended by65%of homeowners
Avatar for Madison Insulation and Mold Remediation
Madison Insulation and Mold Remediation
3.6(
82
)
Batt, Rolled or Reflective Insulation - Install or Upgrade

Serving Cottage Grove, WI and surrounding areas

In business since 2012

"Overall I'm very pleased with the work John has done. He clearly knows his stuff and held true to his initial comment that if he found something that needed to be fixed, he'd fix it at no extra charge. Unfortunately his guarantee wound up being expensive for him since he found the duct work in my attic was a complete mess and fixed it, which he had not initially planned on. But I very much appreciate him keeping his word and fixing the ducts as well as electrical, venting, and other little things that were messed up. (My house was updated 2 owners ago and while the owner had great enthusiasm for remodeling, had very little expertise, resulting in a lot of unpleasant surprises.)

We had a communication glitch about halfway through the project. Due to some health issues, he didn't come for a few days, nor did he call when he said he would. After we discussed it, John has been excellent about keeping me updated as to when he'll be at the house and what work will be done. His extra effort has been reassuring for me.

The foam insulation John and his crew installed in the basement, crawl spaces, add-on entry way, and attic has already had a positive effect, as has caulking cracks in the walls allowing cold air from the attic into the bedrooms. I have a new bathroom exhaust fan that actually takes air in and is vented out of the house instead of into the soffit which resulted in mold and rust issues. As soon as John has crew available he will blow cellulose insulation into my attic.

John has been fun to work with and his work has gotten me the results I wanted.

UPDATE: It's been one month since I wrote this review, which I wrote before the work was completely finished as a favor to John as he was starting another Angie's List deal and wanted me to mention the work he'd done. It's also been a month since I heard from John. The work that is finished continues to be great, but I have 36 bales of cellulose insulation stacked in my garage. A friend helped me move it in because I needed the parking space. I also have his insulation blower, hose, shop vac, and a bunch of tools, as well as some extra foam insulation laying around my house, yard, and garage. Little did I know when I purchased this house that my 2 car garage would be used to store my contractor's tools and materials!

I have left several voice mails and texts as well as two emails asking John to contact me and I have heard nothing. The human part of me hopes that he and his family are ok. The homeowner part of me wants him to get his butt back over here and finish the last part of the job, or at least call me to tell me when he thinks he'll be able to get here. 

John is great when he's here. When he's not here, it's frustrating."
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+4

Recommended by79%of homeowners
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FAQs for batt, rolled or reflective insulation install or upgrade projects in Cottage Grove, WI

Batt insulation excels in vertical installations because it remains firmly in place and delivers consistent thermal performance. Blown-in insulation performs exceptionally in spaces such as attics, efficiently filling gaps in irregular areas. 

Employing both insulation types according to their strengths enhances your home’s overall energy efficiency and comfort by providing a tailored solution for every space.

Start by measuring the square footage of the space, then match that area with the insulation thickness you need to hit your target R-value. Add a buffer for waste and odd-shaped spots so every cavity is covered. 

Once you have a rough count, run it past a local insulation pro—their on-site advice will fine-tune the numbers and help you avoid costly miscalculations.

Old insulation that is dry, intact, and mold-free does not require removal before adding new insulation; stacking new insulation over it maintains effective thermal performance and boosts energy efficiency. 

If the insulation is damp, moldy, or deteriorated, removal is necessary to eliminate health risks and ensure maximum effectiveness of the new layer. A professional insulation contractor will assess your situation and recommend the most effective solution.

Installing insulation in an average-sized home using batts or boards requires five to 12 hours. Using spray foam or blown-in insulation requires two to five hours. These timeframes are determined by the area’s size, accessibility, and whether old insulation must be removed. 

Complex projects and hard-to-reach spaces demand extra time. Hiring an experienced insulation professional ensures that the installation is completed efficiently and correctly.

Insulation is measured by R-value, which defines how effectively it resists heat flow. A higher R-value provides superior thermal resistance, ensuring your home remains warm in winter and cool in summer. 

Choosing the correct R-value is essential for maximizing energy efficiency and comfort, and it directly impacts long-term utility savings. Professional guidance determines the optimal R-value for your specific climate.

The Cottage Grove, WI homeowners’ guide to batt, rolled or reflective insulation installs or upgrades

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