Serving Green Bay, WI and surrounding areas
Approved
Super Service Award Winner
In business since 1978
Free estimates
Customers say: Quick response
"Will see how it works out when it gets colder should have added insulation long ago"

Serving Green Bay, WI and surrounding areas
Approved
Super Service Award Winner
In business since 1978
Free estimates
Customers say: Quick response
"Will see how it works out when it gets colder should have added insulation long ago"

Serving Green Bay, WI and surrounding areas
Approved
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."





+9

Serving Green Bay, WI and surrounding areas
Approved
In business since 2024
Free estimates
Warranties offered
"Did a great job. On time and courteous."
Serving Green Bay, WI and surrounding areas
Approved
In business since 2007
Free estimates
With over 10 years of experience in the insulation industry, we are the service professionals you need to take care of your home or business. We handle all types of insulation projects. We will treat your home as we would treat our own. Give Spray Foam Genie a call today, we look forward to working with you!
Serving Green Bay, 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.

Serving Green Bay, WI and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
Were 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
Serving Green Bay, WI and surrounding areas
In business since 2014
Free estimates
Small jobs welcome
"It was very easy working with Forest from American Insulation LLC. Great communication, great price, and job well done."

Serving Green Bay, WI and surrounding areas
In business since 2017
Free estimates
Credit card accepted
"Albert is a hard worker masked everything well did a great job. I was on time and cleaned up very well."





Serving Green Bay, WI and surrounding areas
In business since 2011
Free estimates
Warranties offered
"The service went very well. They were very professional, great communicator, and very respectful. I appreciate their service."





Serving Green Bay, 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."





+3
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.

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