Serving Denmark, WI and surrounding areas
Approved
Super Service Award Winner
In business since 1978
Free estimates
Customers say: Quick response
"We needed insulation in the basement sill box. Price was excellent, service was fast. The tech was prompt and efficient."
Serving Denmark, 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 Denmark, 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 Denmark, 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 Denmark, WI and surrounding areas
In business since 2014
Free estimates
Small jobs welcome
"Did a Awesome Job on Insulation and Very Professional I would highly recommend this Company for your job!"
Serving Denmark, WI and surrounding areas
In business since 1974
Free estimates
Credit card accepted
We proudly service Rockford, IL, Chicago,IL. and Madison,WI. areas. Please call us at any of these numbers Rockford area at 1- 815-547-0159, Chicagoland area at 1-847-201-6511 and Madison area 608-237-1317. Dear Home Owner,Thank you for considering GF Company to fulfill your home improvement needs. We are more than confident that you will be satisfied with our service, products and prices. You, as our client you will never come across any hidden costs or surprises with your estimate. Our quotes are your final price. Let me just take a moment to introduce us to you. GF Company is locally owned and operated since 1974. We take huge pride in our services, products and workmanship. We will provide you with Lifetime Warranty on Material and Our Work. We belong to BBB (Better Business Bureau) with an outstanding grade of A+, recipient of complaints free award since 2002.. We are also a recipient of Angie's List Super Service Award since 2012. We are proud to say we have 98% customer satisfaction rating. G.F. Company is an EPA (Environmental Protection Agency) Lead Safe Certified Firm. We always think "GREEN" trying to help the environment and make the world better place. We have our share by recycling everything that we possibly can and that includes but is not limited to aluminum and steel gutters and siding from your house shingles from your roof, vinyl siding and all the cardboard boxes left from the supplies that we installed on your home. We thought we would share this with you. GF Company has been named Platinum Partner Company of Progressive Foam( the maker of Prodigy siding Insulation )with benefits to you knowing that the company working on your house has been recognized by the manufacturer for its superior quality and excellence of Workmanship. We are the only in this area Atlas- Platinum Level Signature Select Roofing Company
+19
Serving Denmark, WI and surrounding areas
In business since 2017
Free estimates
Credit card accepted
We are a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. We offer a variety of Insulation services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!
Serving Denmark, WI and surrounding areas
In business since 2005
Credit card accepted
"Stendahl Exteriors was very knowledgeable about the insulation problem/getting a new roof and new siding. They were able to complete the work in a very timely manner. We weren't planning on the insulation being done but they were very helpful and courteous in helping us fix this."
+3
Serving Denmark, WI and surrounding areas
In business since 1995
Free estimates
"I had a Ice Dam in December, due to that the attic needed to upgrade the insulation along with additional proper vents. Had several bids Bay Therm had the best bid, plus they took the time to explain every step very pleased with Bay Therm."
Serving Denmark, WI and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"Removed many bags of blown-in insulation and sprayed new closed-cell foam into the attic roof beams"
+1
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.
Budget for attic insulation removal costs based on factors such as attic size, insulation type, site condition, hazardous materials, labor, and more.
Use this guide to budget for roof repair costs based on factors such as roof condition, materials, size, repair type and severity, and more.
Need fascia and soffit repairs? Hiring a pro ensures proper installation, protects against pests, and prevents structural damage. Learn about common warning signs, material options, and how fascia and soffits safeguard your home from moisture.
Our comprehensive cost guide will help you explore the costs associated with roof replacement, including roof pitch, shape, design, square footage, and more.
Learn who to call for HVAC inspection. Discover which pro to hire, what to expect from an HVAC inspection, and average costs for your home.
Finish your home project on a budget with this cheap windows buying, installing, and replacement guide.