Attic Spray Foam Insulation Antigo, WI 54409 | Wausau Spray Foam Insulation

Antigo's potato-country homes sit on poured basements and under attics that swing from 130 degrees in July to 25 below in January, and every winter brings ice dams to the roof edge. Whether your house is a 1920s frame home on the north side or a 1970s ranch closer to the edge of the Northwoods, the cold finds every gap in the rim joist, every loose seam in the attic, and every drafty knee wall. Wausau Spray Foam Insulation has been sealing and insulating homes across central Wisconsin since 2012, and we know exactly what Antigo's building stock needs to stop losing heat and stop building ice.

Homeowners in Antigo (54409) call us when a heating bill has become unaffordable, when a bedroom over a garage won't hold temperature, or when they find damp insulation and condensation in a crawl space or attic. We show up with a free on-site assessment, honest advice about what will work and what won't, and a written estimate that names the R-value, thickness, and material we're going to install. No guesswork. No surprises.

Spray Foam Insulation in Antigo (54409)

Antigo's homes were built in waves. The oldest frame houses carry balloon-framed walls with no cavity insulation and open rim joists that let the winter wind straight into the basement. The 1940s through 1970s ranches and story-and-a-halves have knee-wall attics, flat roofs over garages, and rim bands that were never sealed. All of them sit on basements or crawl spaces where cold air pools and moisture gathers. The climate here is relentless: long winters with heavy snow, short humid summers, and vapor drive that pushes outward most of the year. In July the attic hits 130 degrees. In January it drops to 25 below. That temperature swing, combined with high humidity, creates condensation on every cold surface, frost inside crawl spaces, and ice dams that back water under the shingles every spring thaw.

Spray foam insulation stops that cycle. Closed-cell foam seals rim joists, band boards, and crawl space walls with an air barrier that also carries a vapor retarder. Open-cell foam fills attic cavities and wall bays where blown-in insulation would settle and leave gaps. We can inject foam into the walls of older homes without tearing them open, remove contaminated or failed insulation before we start, and seal the air leaks that blown-in alone will never touch. We've been doing this work in Antigo and the surrounding Wausau area for over a decade, and we know the building codes, the local building department, and the exact failures that show up in this climate.

Our services in Antigo

How a Job Works in Antigo

We start with a free on-site visit to your home in Antigo. We look at the attic, the crawl space or basement rim, the walls you want insulated, and any existing insulation that's wet, compressed, or contaminated. We take measurements, ask about your heating and cooling comfort, and explain what we can do and what it will cost. We give you a written estimate with R-value and thickness specs so you know exactly what you're paying for. No pressure. No phone calls later with a different price.

When you're ready, our fully insured crew arrives with equipment and materials for the job. If old insulation has to come out first, we remove it and haul it away. We set up mechanical ventilation during the spray to manage the smell and fumes, and we follow the manufacturer's ratio and drum temperature exactly so the foam cures right. If we're spraying an attic in an occupied home, we give you a re-entry window of 24 to 48 hours before the space is safe to use again. If we're sealing a rim joist or crawl space, we work around your schedule and your family's comfort.

When we're done, we clean up the work area, walk you through what we installed, and answer any questions. You get a property that holds temperature, stops drafts, and stays dry.

Spray foam pricing in Antigo depends on what you're insulating and what has to happen first. An attic spray foam job typically runs from $1.50 per square foot for open-cell to $1.20 per board foot for closed-cell, depending on the thickness and R-value you need. A rim joist or band board seal starts around $650. A crawl space typically runs $2,500 and up, depending on the square footage and whether old insulation or debris has to come out first. Wall injection foam for a retrofit runs from $2 per square foot. If you have contaminated or failed insulation that has to be removed before we spray, that's a separate job starting around $950. The key factors are the area to cover, the R-value and thickness you need for your climate zone, whether you want open or closed cell, and what prep work comes first. We'll give you a free estimate over the phone at (534) 901-1691, or we'll come out to your house in Antigo and walk through the job in person. Either way, you'll know the price before we start.

✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Antigo and nearby areas.

My house is one of the older frame homes on the north side of Antigo. The walls are cold in winter and I can feel drafts around the windows. Can spray foam help?

Yes. Old frame homes with balloon framing and no cavity insulation are exactly what wall injection foam is made for. We drill small holes in the exterior wall, inject closed-cell foam into the cavities, and seal the holes. The foam fills every gap, stops the drafts, and adds an R-value of about 3.6 per inch. You won't tear up your walls, and the work is done in a day. Call us at (534) 901-1691 for a free estimate.

I found moisture and frost on the rim joist in my basement, and the insulation is damp. What do to I do before I can spray foam?

Stop. We fix the moisture first or we walk away. If there's active water coming in, a roof leak, or standing water in the crawl space, that has to be addressed before any foam goes in. If the insulation is just damp from condensation and the source is sealed or controlled, we remove the old insulation, dry the rim and band, and then spray closed-cell foam to seal the air leaks and stop future condensation. Call us at (534) 901-1691 and describe what you're seeing. We'll tell you straight whether foam is the right next step or whether something else has to happen first.

How much does it cost to spray foam an attic in Antigo?

An attic foam job typically runs from $1.50 per square foot for open-cell foam to higher costs for closed-cell, depending on the R-value and thickness you need. A 1,200 square foot attic might run $1,800 to $3,000 or more. The exact price depends on the current insulation (if it has to come out first), the access, and whether you want open or closed cell. We give free estimates. Call (534) 901-1691 or request an on-site visit and we'll walk you through the numbers.

What R-value and thickness does the building code require for spray foam insulation in Antigo?

Wisconsin's energy and building code sets the R-value requirements for your home based on the year it was built and the part of the house you're insulating. Attics typically need R-38 to R-49. Walls need R-13 to R-21. Rim joists and crawl spaces need R-15 to R-21. The code also requires an ignition barrier and a thermal barrier on the foam depending on the space. The building official at Langlade County, which oversees Antigo, has the final say on what applies to your address and how the work gets inspected. You can reach the county at https://www.co.langlade.wi.us to confirm the rules for your property. We help you navigate what's required and make sure the job passes inspection.

We're planning to spray foam the attic, but we live in the house. How long will the smell last and when can we go back upstairs?

We set up mechanical ventilation during the spray to manage the fumes and odor. Once we're done, we leave the ventilation running and recommend staying out of the attic for 24 to 48 hours while the foam cures. Some people notice a slight smell for a few days after. Open windows, run fans, and the air clears. If you're sensitive to odors or have young children or pets, let us know when you call and we'll talk through the timing and what to expect. Call (534) 901-1691.

Are you insured? What coverage do you carry?

Yes, we are fully insured. We carry general liability and workers' compensation insurance on all our jobs. If you want to verify our coverage before we start, ask us for our insurance information and we'll provide it. You can also ask to see our certificate of insurance.

Winter is coming and my heating bills are already climbing. When should I schedule spray foam insulation work in Antigo?

Now is the time. Antigo winters are long and cold, and every month you wait costs you in heat loss. Rim joist and basement work can happen year-round because it's interior and we control the environment. Attic work is easiest in fall before the heavy snow, but we do it in winter too. Don't wait until January when the cold is at its worst. Call us at (534) 901-1691 in September or October and get on the schedule. Even a quick rim joist seal will cut your heating costs and stop the cold air from pouring into your basement.