Spray Foam Insulation in Wausau, WI

Find top-rated spray foam contractors and save up to 37% on energy bills

Compare 6 verified spray foam insulation contractors serving Wausau, Wisconsin, backed by 142 customer reviews averaging 4.5★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Wausau contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 37% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Wausau

37%
Average Energy Savings
Typical range: 32% - 42%
$1,732
Estimated Annual Savings
Based on $390/month average energy cost
4 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Very Cold.

Verified Contractors in Wausau

Recent Reviews:

Jeffrey Lederhaus★★★★★a year ago

Retrofoam crew did a great job from start to finish, you can't even tell where they reinstalled the siding! Everyone was very polite and thorough. Thank you

Kassye Miller★★★★★a year ago

Fox cities retro foam. What can I say about this business. We had our walls insulated everything went fantastic great clean up. Great communication. Great team work. Than we had our attic also redid with insulation as will that wasn't as great we had some hiccups with some insulation was suppose to be a 2 day job turn to a 3 day job. Communication was a bit of a struggle but once I called the project manager and he was aware of every thing things started to go better til they accident broke our front door from having it open to far and had to much stress and the wind took it and it pulled it out. But long story short they fixed our broken door great communication it resolved everything. Would I recommend them? Yes If you feel you need to reach out because something isn't right. Do it your paying them. Great customer service The crew that did our attic was Project manager Elijah Jon k Charlie b Jaimin m The people who fixed our door was Will Jay

Dan Johnson★★★★★a year ago

Zach and Alex did a great job. 5 stars from start to finish. They take pride in their work and it shows. I am happy to recommend Fox Cities Retrofoam. They successfully made a 1920's house energy efficient and much less drafty, yet you cannot tell that they were here. Great company and great technicians! 5 stars Dan

5⭐
26 Google reviews

Recent Reviews:

Philip Montero★★★★★2 months ago

I’m very happy with the Spray Foam Insulation from Spraytech Insulators of Milwaukee. Excellent service, professional team, and the results exceeded my expectations. Highly recommend!

Fatara Worrell★★★★★2 months ago

Spraytech Insulators of Milwaukee provide excellent Spray Foam Insulation services for sure. Their website is also very smooth and efficient to navigate. Definitely recommend.

alex★★★★★4 months ago

Spraytech Insulators of Milwaukee provides top-notch Spray Foam Insulation with great customer service and professional results. Their website is informative and easy to navigate. Highly recommend!

5⭐
28 Google reviews

Recent Reviews:

All Shook Up Tavern★★★★★7 months ago

Outstanding Work – Highly Recommend Rock Road Company! Last fall, Rock Road Company insulated both my walk-up attic and a crawlspace under a dining room addition, and I couldn’t be happier with the results. Their service was excellent from start to finish. They were professional, friendly, and super detail-oriented. Communication was clear, they showed up on time, and they left everything even cleaner than it was when they arrived! They even went above and beyond by bringing enzyme cleaners after I mentioned a lingering cat smell from the previous owners, completely unprompted and at no extra cost. That level of care is rare! As for the insulation itself — it’s amazing. My attic stayed warm and comfortable all winter without any added heat, and it’s now a totally usable space. The crawlspace insulation also made a noticeable difference in keeping the dining room above much more comfortable. The spray foam they use is clearly top quality. If you’re considering insulation work, I highly recommend Rock Road Company. They truly go the extra mile.

thomas simonsen★★★★★7 months ago

I just had them spray the inside of my 12'x16' cabin in the woods. They did the walls, ceiling, and floor joists (2x4).Everything from their timeliness to replying to my initial inquiry, arranging to see my project, getting me a bid, getting me on the schedule, and getting my project completed was nothing short of a pleasure. They kept me informed the whole time from start to finish. The gentleman that did the spraying was very meticulous and was careful to get every nook and cranny. When they were done, they did an excellent job of trimming the excess, caulking between all of the studs, floor, and top wall plates. They also did an excellent job cleaning up because this process does make a bit of a mess. I was really surprised at how much spray foam solidifies a structure! When they were done, I set up a lazer to start finishing the ceiling and when I walked around, the lazer line didn't move at all! My cabin sits on concrete blocks so it's not real sturdy to begin with but it feels really solid now. I'm in the trades myself and I firmly believe that you get what you pay for and I feel like I got what I paid for and I'm very happy with the job that was done. You can tell in the first 5 minutes of meeting any employee that they take pride in their work and it shows. Thanks a lot to everyone at Rock Road!

hunter. GoPro★★★★★6 years ago

I first called Rock Road Company after another spray company that I had lined up had backed out of spraying my house the day before it was supposed to be sprayed. I explained to Carrie my situation along with the tight time line that I had for spraying before my drywall installers were scheduled to do their job. Carrie and Luyk made it a point to go out of their way to come measure my project the day after I called. Rock Road Company was out to my house spray foaming the very next week! The Rock Road crew was very knowledgeable and experienced. They did an excellent job prepping, spraying and cleaning up everything in my house. I will for sure be keeping their number in my contacts for future projects and referring them to anyone that is interested in spray foam. Thank you again Rock Road Company!

4.9⭐
62 Google reviews

Recent Reviews:

Rob lee★★★★★2 years ago

Ben was fast to quote and came in more reasonable than any competitor. He came in a timely manner and got every stage of the job done when needed. He answered any questions I had very professionally. He has a hard working crew that works long hours to get the job done. I would recommend energy edge to anyone. Thanks Again Ben!

Hans Rufener★★★★★a year ago

I hired Energy Edge to spray foam the exterior of my house and blow cellulose in the attic. Ben was very knowledgeable and did fantastic work, for a reasonable price. He was also very workable around my schedule and cleaned up after himself. I would definitely recommend Energy Edge to anyone with insulation needs.

Darron McDougal★★★★★4 years ago

Ben was fast to give us a free quote and got us scheduled within just a few days. He came on time and insulated our basement within just a few hours. We instantly noticed the difference; our basement is virtually as warm as our upper level. We are very satisfied with his work and the drastic difference in energy efficiency in our basement. Thanks!

4.2⭐
5 Google reviews

Recent Reviews:

Dan Palichat★★★★★7 months ago

Matt and team are always quick to respond to calls and emails, and they do fantastic work. If you have new commercial roofing projects or commercial roofing repairs, these guy are good at what they do. I would definitely give them a call!

Dylan Stanford★★★★★4 months ago

They're a great commercial insulation and commercial roofing company to work with. Very professional and high quality work!

Mike Foerster★★★★★3 years ago

We have used North Central several times over the past few years including emergency repairs for storm damage. Each time we have used them they are very professional and communicate very well. Eric and his team are great to work with and I would highly recommend them to anyone looking for roofing work in the Midwest.

2.9⭐
8 Google reviews

Recent Reviews:

Dallas Edwards★★★★★6 years ago

Kind of small facilities for a big 🚚 but nice people let me sleep on site when I was there had no shift time to drive to a truck stop

Tony Nails Watters / Bøñë-Såw★★★★a year ago

Ok

Bridget Werner★6 years ago

This company takes every shortcut possible and has no integrity in their work. We are in a new build and there are visible seams in our ceilings, many cracks, and pieces that are separating. The builder got Alpine to come back to fix their work but that is a disaster, too. The crew beat up the exterior of our house when they brought in their scaffolding, got mud all over our finished doors and scoffed when we told them we needed to be able to sleep in our bed and access our second floor every night after they finished working. Their scheduling person sent the same person out twice to assess the situation because they didn't think the right person came the first time, but only realized it when I contacted them to question why the work hadn't been scheduled. Do not work with them if you want at least a halfway decent drywall job done.

Frequently Asked Questions — Spray Foam Insulation in Wausau

These are the questions Wausau homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 37% typical energy savings. Compare the 6 verified Wausau contractors above for exact quotes.

Why is spray foam insulation especially important in cold climates like Wausau?▼
In cold climates like Wausau, WI, proper insulation is critical to preventing heat loss, ice dams, and frozen pipes. Spray foam's air-sealing properties stop the cold air infiltration that traditional insulation cannot address. It also prevents the moisture buildup inside walls that leads to mold in cold-weather freeze-thaw cycles. Homeowners in WI typically save 25–35% on heating costs. Note: in tightly sealed homes, proper mechanical ventilation is commonly recommended to maintain fresh air exchange without losing the heat you've paid for.
Does spray foam insulation prevent ice dams in Wausau?▼
Yes — spray foam insulation is one of the most effective solutions for preventing ice dams in cold climates like Wausau, WI. Ice dams form when heat escapes through a poorly insulated attic, melting snow that refreezes at the eaves. By creating an air-tight thermal barrier in the attic, spray foam eliminates the heat loss that causes ice dams in the first place.
What R-value do I need for spray foam insulation in Wausau?▼
For cold climates like Wausau, WI, the Department of Energy recommends attic insulation of R-49 to R-60. Closed-cell spray foam provides R-6 to R-7 per inch, meaning 8–10 inches achieves code-minimum performance. Open-cell foam at R-3.5 per inch requires greater thickness. A local contractor familiar with WI building codes can recommend the exact specification for your home.
Is spray foam insulation worth the cost?▼
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost in Wausau, WI?▼
In Wausau, WI and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic in Wausau costs $2,000–$6,000. Most Wausau homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor in Wausau, WI?▼
When searching for a spray foam contractor in Wausau, WI, look for ones who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified Wausau contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors in Wausau for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?▼
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?▼
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.

Spray Foam Contractors Near Wausau, WI

Not finding the right fit in Wausau? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.