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Top-Rated Insulation pros in Sparta - Updated Nov 2026

RetroFoam of Wisconsin Inc.
New to Angi
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

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.

77 neighbors recently requested a quote
Avatar for Patriot Spray Foam L.L.C.
Patriot Spray Foam L.L.C.
New to Angi
Spray Foam Insulation - Install

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
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

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."
Additional Photos
Additional Photos
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+2

Recommended by65%of homeowners
Avatar for C Golke Industries LLC
C Golke Industries LLC
5.0(
4
)
Spray Foam Insulation - Install

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%
Garcia's Insulation & construction
5.0(
1
)
Injection Insulation - InstallSpray Foam Insulation - Install

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
Upper Iowa Spray Foam Insulation - Contractor - Decorah, Iowa - 8 Photos Facebook
5.0(
1
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Sparta, WI and surrounding areas

In business since 2016

Free estimates

Welcome to Upper Iowa Spray Foam Insulation, the leading insulation specialists serving Decorah and the surrounding areas. With over 5 years of experience in all insulation projects, we look forward to earning your business. Call today for a free estimate! \n

Recommended by100%of homeowners
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Insulation FAQs, answered by experts

Yes, many professionals offer insulation options, such as insulated siding (including insulated metal siding), to improve your home's energy efficiency.

Adding insulation to ceilings is an excellent way to increase the energy efficiency of your home. If your home's layout is such that you need insulation in the ceilings rather than in the roof, it's likely that at least some insulation already exists in the space. However, each additional inch of insulation you can add boosts the R-value by between 2.2 and 4.2.

The best type of insulation for your home depends on your specific needs, climate, and the area you are insulating. For new construction, structural insulated panels are a highly energy-efficient option that is easy to install during the building process. In very warm climates, reflective insulation can be a cost-effective choice. For cold climates, fiberglass is an excellent option due to its high R-value and resistance to settling over time. Spray foam works well in humid environments because of its moisture-resistant properties. For standard attics, loose-fill, spray foam, or blown-in insulation are all suitable options.

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

Yes, energy-efficient homes are increasingly desirable in the market.

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.