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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon56
    Verified insulation services reviews

Top-Rated Insulation pros in De Pere - Updated Nov 2026

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

Serving De Pere, 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.

72 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 De Pere, 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 Keeney Home Services
Keeney Home Services
5.0(
1
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving De Pere, WI and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

At Keeney Home Services, our commitment to excellent service sets us apart from other home improvement companies. We are true masters of our craft and hold numerous certifications and awards for both our workmanship and our customer service. We hold third-party recognition that includes the GuildQuality Award for Service Excellence and an A+ rating with the Better Business Bureau. We are also members of several Home Builders Associations throughout the area and are certified by Good Housekeeping.\n\nAdditionally, our technicians are factory-trained in every product we offer, ensuring your new products are installed flawlessly to maximize their performance. Our top-of-the-line products include GutterShutter® Gutters, GAF asphalt shingle roofing, and Ultimate Attic Solution insulation. Our expertise in each of these products as well as their proper installation is why homeowners throughout Northeast Wisconsin prefer us over other home improvement companies in the area.\n \n

7 neighbors recently requested a quote
Avatar for USA Insulation Green Bay - Fox Valley
USA Insulation Green Bay - Fox Valley
5.0(
9
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving De Pere, WI and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"They had a great group of people to work with, The crew was there at the appointment time. Nick and his team worked together well to get the job done, including adding insulation to the attic, adding foam to all exterior walls, and insulating in the basement. This was all done in 1 day and they cleaned up after themselves. I would highly recommend them."
USA Insulation Work!
USA Insulation Work!
USA Insulation Work!
USA Insulation Work!
USA Insulation Work!

+9

Response time1 day
Response rate88%
41 neighbors recently requested a quote
Avatar for Stendahl Exteriors
Stendahl Exteriors
4.1(
252
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving De Pere, WI and surrounding areas

In business since 2005

Credit card accepted

"He came out and checked the roof. Though it is a 35 year old roof, with respect to what its lifespan should be, he noted that it is looking a bit older even though it is only about 25 years old. He said that in a few more years it will be time to replace it. Other than that, there were no major problems to report. So even though it is not good news that I will have to replace it in a few years, I did not get the impression that he was trying to see me one. If I needed a roof I would certainly take an estimate from him."
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Recommended by82%of homeowners
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Insulation FAQs, answered by experts

Insulating a stone house is an expensive and involved process because it requires building a double-walled house. The walls don’t need to be the same thickness, but they both need to be thick enough to handle any structural demands and meet fire and safety standards. The insulation (usually foam or fiberglass) is then installed between the two stone walls.

Without a doubt, insulating a garage door is a surefire way to make your home more energy efficient. Not only does insulating your garage door reduce your electric bills, but it also helps protect your valuables inside your garage, all while making for a quieter interior space. 

In regions that drop below 0 degrees Fahrenheit, your car's battery is at risk of malfunctioning in a garage that drops dangerously low. So, homeowners who reside in extremely cold climates can especially benefit from insulating their garages.

Yes, proper insulation in your attic or ceiling can help prevent ice dams. When attic spaces are too warm, they cause the snow on the roof over those areas to melt more quickly than the rest of the roof and then travel downward to a colder section of the roof where they refreeze. If less heat is allowed to escape from underneath the roof, snow will melt at a more consistent rate, making ice dams less likely.

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

The De Pere, WI homeowners’ guide to insulation services

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