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Verified Reviews for Insulation Service pros in Sparta, WI

*The Angi rating for Insulation Service companies in Sparta, 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 Sparta, 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 October 20, 2025

Find Insulation pros in Sparta

RetroFoam of Wisconsin Inc.
New to Angi

Serving Sparta, 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.

13 neighbors recently requested a quote
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Avatar for Patriot Spray Foam L.L.C.
Patriot Spray Foam L.L.C.
New to Angi

Serving Sparta, 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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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Sparta, WI and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
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+2

Recommended by65%of homeowners
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Avatar for C Golke Industries LLC
C Golke Industries LLC
5.0(
4
)

Serving Sparta, WI and surrounding areas

In business since 2022

Free estimates

Warranties offered

"He showed up ready to go, very knowledgeable knowing how to and why it would be a good choice for our project. our basement needed extra insulation so our pipes don’t freeze, i’m super happy with the job, and the clean up was done right away. couldn’t tell he was even there working. i really appreciate when you don’t have to clean up after a contractor it shows a lot of respect."
Attic Spray Foam
Attic Spray Foam
Attic Spray Foam
Metal Roofs
Metal Roofs

+3

Response time12 hrs
Response rate90%
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Garcia's Insulation & construction
5.0(
1
)

Serving Sparta, WI and surrounding areas

In business since 2007

Free estimates

Garcia's Insulation and Construction, LLC 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.

Response time1 day
Recommended by100%of homeowners
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Insulation questions, answered by experts

Mold can grow on garage ceiling insulation, which is why it’s important to install a vapor barrier behind the insulation and keep the space cooled and heated as you would your living area. Doing so will more or less eliminate the risk of mold growing on your garage ceiling insulation. You can also install a self-draining dehumidifier to help remove moisture, or opt for a foam board insulation or spray foam insulation that won’t harbor moisture and mold.

To keep cold out, look for treatments that sit close to the window frame and are made from thick, insulating materials. Thermal curtains, cellular shades, window quilts, and insulated shutters can all help retain heat. Layering window treatments, like pairing lined curtains with cellular shades, can provide even better insulation by further reducing drafts and heat transfer.

Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase. 

You should not use spray foam insulation in several specific areas. Avoid applying it in spaces exposed to high temperatures, such as near electrical boxes or recessed lighting, unless the foam is specifically rated for such use. Applying foam near electrical boxes can damage the wiring, and using it too close to lightboxes or recessed lights creates a potential fire hazard. Additionally, do not use spray foam in areas prone to shifting or movement, as this can lead to cracks and gaps in the insulation. Finally, open-cell foam is unsuitable for use below ground or in areas exposed to moisture because it can absorb water, which compromises its insulating effectiveness.

The cost to rent an insulation vacuum ranges between $250 and $350 per day. The price will increase if you choose to rent for additional days, but you may get a discounted daily rate if you rent it for a whole week, which could cost up to $1,000. Once you've removed the insulation and are ready to replace it, the cost to rent a blown-in insulation machine ranges between $100 and $500.

The Sparta, WI homeowners’ guide to insulation services

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

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