Attic Insulation Services in Minnesota & Wisconsin

Improve your home’s comfort and energy efficiency with professional blown-in cellulose attic insulation and attic ventilation services throughout Minnesota and Wisconsin. We specialize in attic insulation solutions that help homeowners reduce energy loss, improve airflow, and maintain more consistent indoor temperatures year-round.

Blown-in cellulose insulation provides excellent coverage by filling gaps and hard-to-reach areas that traditional insulation can miss. It helps keep your home warmer during Minnesota and Wisconsin winters and cooler during the summer months while reducing outside noise and improving overall energy efficiency.

Proper ventilation is just as important as insulation. That’s why we evaluate and update soffit and roof ventilation as needed to help prevent moisture buildup, reduce the risk of roof damage, and allow your attic system to perform at its best.

A properly balanced attic can improve comfort throughout your home, lower heating and cooling costs, and help extend the life of your roofing system.

Why Homeowners Choose Us

    • Specialists in attic insulation
    • Blown-in cellulose insulation experts
    • Soffit and roof venting updates as needed
    • Professional, honest installation
    • Long-term comfort and energy savings

    Ready to make your home more comfortable and energy efficient? Contact us today to schedule a free attic evaluation.

    Our Pledge graphic from Capital Siding, Windows & Roofing highlighting quality craftsmanship, affordable pricing, homeowner satisfaction, and trusted service since 1987.

    Why Homeowners Choose Capital

    Family Owned Since 1987

    Proudly serving Minnesota and Wisconsin homeowners with trusted home improvement services for nearly 40 years.

    47-Time Angi Super Service Award Winner

    Trusted by homeowners and recognized for outstanding service, quality craftsmanship, and a commitment to customer satisfaction.

    GAF Certified Roofing Contractor

    Trusted expertise, quality materials, and professional installation backed by one of North America's leading roofing manufacturers.

    Free Estimates

    We provide honest assessments, clear communication, and no-obligation estimates so you can move forward with confidence.

    Financing Available

    Flexible financing options are available to help make your home improvement project more affordable. Through our financing partner, we offer convenient payment solutions so you can move forward with confidence.

    Experienced Craftsmanship

    Our experienced installation teams take pride in delivering quality workmanship and attention to detail on every project. From roofing and siding to windows and gutters, we are committed to getting the job done right.

    Honest Communication

    We believe every homeowner deserves clear communication and straightforward answers. From your initial estimate through project completion, we keep you informed every step of the way.

    Long-Term Relationships

    Many of our customers return to Capital for additional projects and refer their family and friends. We are proud to build lasting relationships through trust, quality work, and dependable service.

    Trusted by Homeowners Across Minnesota & Wisconsin

    The choice is clear.

    EXCELLENT
    Google star 1Google star 2Google star 3Google star 4Google star 5
    Based on 10 reviews
    Posted on Google Google
    Tee Gee profile picture
    Tee Gee
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    The installation of my new roof, using the finest asphalt products (GAF LayerLock®-labeled Timberline® Shingles) and the best warranty available, was completed within 2 days on a 3,500-square-foot residence. The crew demonstrated exceptional professionalism and expertise. Throughout the process, I was consistently informed of each phase, and upon completion, the site was entirely cleaned. They took meticulous care to address all my concerns. The new roof is aesthetically pleasing, and I would like to extend my highest commendations to Capital Siding and Roofing for their outstanding work.
    Posted on Google Google
    Bruce Montgomery profile picture
    Bruce Montgomery
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Outstanding, personalized service---Jeff spend as much time as we needed to make numerous decisions on the residing project. Jeff and his family members provided frequent updates--great communication and very timely installation.
    Posted on Google Google
    Michael Petry profile picture
    Michael Petry
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Capital Siding is an outstanding company!!! I got referred to them by a siding guy that got out of the business and I am so glad he referred me. I gave Jeff the bid from the other company as a reference for what work needed to be done. Jeff and Danny came out to my house, checked out the siding, and subsequently told me that not all of that work needed to be done. They could have just quoted the same thing that the other company did, undercut it a little and I would have been happy. But they didn't do that. They did just what was needed and saved me over $8,000!!! And from the beginning to the end, the whole team was AWESOME to work with. Organized, professional and just a great family-owned business... Thanks so much Jeff, Danny and Mike. You guys rock 😀👍🏻
    Posted on Google Google
    Grizz Erickson profile picture
    Grizz Erickson
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    We hired Capital Siding, Windows, and Roofing to replace the roof and gutters of our new house and we couldn't be happier! During the process of buying our new home, the house suffered hail damage from the hail storm on September 22, 2025. This resulted in us having to push out our closing date by a month (due to the seller and their insurance process). I had spoken with Jeff and Danny earlier in the year to look at siding and window updates on our current house and they had impressed me with their thoroughness, respect, and lack of pushy sales techniques. So, after we found out about the hail damage on the new house, they were the first call I made. Although the house was not yet ours, Jeff and Danny did a thorough assessment of the damage and provided us with a reasonable and competitive estimate to replace the roof and the gutters. They also provided competitive estimates for upgrading the shingles from Class 3 to Class 4 - hail resistant shingles. This upgrade saved us quite a bit on our home owners insurance and we'll see a payback in 3 years. They also upgraded our box vents to a continuous ridge vent to provide better ventilation in the attic. They even extended the ridge vent to the edge of the roof so that it looked consistent. This was a minor change that made the new roofline just look that much cleaner. Once we closed on the house, Capital got started the very next day! Within 3 days we had a brand new roof and within 5 days the whole project was completed. I would highly recommend Capital Siding, Windows, and Roofing to anyone looking to replace / upgrade their roof. They were responsive, respectful, and efficient. The whole process was smooth and I never felt pressure to do anything I wasn't comfortable with. Lastly, if you have wind, hail, or storm damage - don't go with the hail chasers like Trinity Exteriors, Prominent Construction, or Estate Claim Services that push you to file a claim with your insurance and then take all the money regardless of what an actual repair would cost. Go with someone local and trusted like Capital. If and when we decide to upgrade our windows, they will be my first call.
    Posted on Google Google
    Erica Clark profile picture
    Erica Clark
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    I had a good experience with Jeff and his crew. Jeff took the time to make sure there wouldn't be any surprises as we talked through the cost of replacing my roof. He also took the time to provide an updated completion list for me to submit to my insurance company after the job was completed, which provided me with an extra $950 payment beyond what I initially received. His crew did a thorough job on the roof and did a good job protecting my plants and cleaning up afterwards. I would definitely recommend them!
    Posted on Google Google
    Jay profile picture
    Jay
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    My experience working with Capital Siding, Windows, & Roofing was fantastic—and no surprise, considering they are a family-owned business! I purchased new windows and doors. The windows and doors have been installed for 12 months now, and I’ve had zero issues. Jeff and Danny are very knowledgeable and laid-back, which makes them easy to work with. Brian executed an expert installation, taking his time to produce results that were essentially perfect. Thanks, Brian—you rock! I’ve received many compliments from my neighbors about my new windows and doors. Plus, Capital offers a five-year labor warranty—you can’t beat that! You won’t regret working with this company. I highly recommend them. ⭐⭐⭐⭐⭐
    Posted on Google Google
    Peter Gerdts profile picture
    Peter Gerdts
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Everyone at Capital was amazing from start to finish. We really had to fight for our insurance company to cover our roof replacement, and Capital was with us every step of the way, helping us navigate all of it. The new roof was done quickly and looks great.
    Posted on Google Google
    Lucinda Laporte profile picture
    Lucinda Laporte
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    We had a great experience with Capital Siding, Windows and Roofing! They completed our roofing and siding project efficiently and more quickly than we expected. Jeff and Danny were very helpful in explaining the process to us. The crew was professional, respectful, and kept the work area clean throughout the process. Everything looks fantastic — the attention to detail really shows. From start to finish, communication was smooth, and the receptionists Mary and Sheila were especially friendly and helpful when we called with questions. It was wonderful to work with a company that really cares about their customers and in doing a thorough, quality job they can be proud of.
    Posted on Google Google
    Adam Frederickson profile picture
    Adam Frederickson
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Being a first-time home buyer, I did not expect to be filing an insurance claim 3 months after I purchased my home. When I purchased my home, the roof was 20 years old, and I did not expect to get any coverage on my roof. 2 Hailstorms in the first 3 months caused damage and leaking I could not ignore. Because of the age of my roof, I debated to myself filling a claim, unsure if the hail damage was going to be enough to outweigh the age of the roof. I expected the insurance to brush it off and deny any claim. I ended up choosing a contractor that did not end up working out and was back looking for a contractor 2 months after the storm. I had leaks in my roof and was getting very stressed out through the whole process. I was contacted by jeff and Danny after looking around on Angie's list. I did not expect to get my phone bombarded by 20 different contractors just by looking into and starting a job on Angie's list. I only entertained a couple quotes from those contacts and I'm glad Jeff reached out to me. From my very first interaction with them I was happy the previous contractor didn't work out. Jeff and Danny were very professional and helped talk me into making a claim. Danny was amazing working with the insurance team and Jeff helped ease my mind every step of the way. Their due diligence and professional work ethic helped get a full claim for my roof. I don't have a huge roof but the team that worked on it did a wonderful job and was completed in one day. The office team was very helpful with all my questions going back and forth with my insurance and Danny and Jeff were always available when I needed them. Everything looks great and from start to finish I could have never imagined it going so smoothly. I'm glad I chose Capitol Siding Window and Roofing!
    Posted on Google Google
    Jiang Zhang profile picture
    Jiang Zhang
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    It has been an awesome experience working with Capital for our roof replacement. Danny, Jeff, Mike, and Mary were all super helpful throughout the whole process. They are so professional with not just us but also with our insurance company. They answered all of our questions clearly and timely, making the process so easy for us. Really appreciate them!

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    Serving homeowners throughout the Twin Cities, Greater Minnesota, and Western Wisconsin since 1987. We provide free, no-pressure inspections and estimates, helping you understand your options with honest recommendations, transparent pricing, and no obligation.

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