
Outagamie County seat on the Fox
Spray Foam Insulation in Appleton, WI
Homes that span 170 years of building, insulated for a snowy Zone 6 winter.
- Free on-site estimates
- Every area quoted in writing with its R-value
- Wiring, moisture and venting checked before we insulate
Insulating a City With 170 Years of Houses
Spray foam insulation in Appleton has to suit houses from almost every period since the city was settled in 1847. The 2020 census counted 31,747 housing units and 75,644 residents. Neighborhoods close to the river and downtown hold many pre-war homes, the city filled in quickly after World War II as the population went from about 34,000 in 1950 to 48,000 in 1960, and newer homes sit on the edges.
Snow and cold
Appleton averages 49.4 inches of snow a year, with 12.6 inches in January alone, and the January mean low is about 10°F. Snow load plus warm air leaking from below is how ice dams form, so sealing the attic floor comes first on most of our Appleton quotes.
Pre-war and postwar homes
Older houses often have empty walls, which we dense-pack with cellulose, and attics with thin fill. Postwar homes usually have some attic insulation but bare rim joists and leaky recessed lights and bath fans. Both benefit from rim joist foam.
Three counties
Appleton is the Outagamie County seat but reaches into Calumet and Winnebago counties. Outagamie and Winnebago are both in Climate Zone 6A, where Wisconsin's code summary lists R-49 ceilings.
What it costs here
HomeGuide's national figures put a typical attic insulation job at $1,000 to $2,700, rim joist foam at $2,000 to $2,500 and dense-pack cellulose at $1.60 to $4.20 per square foot. Older city lots with tight access can add setup time. We price each area after a visit and put it in writing.
Rentals near the university
Neighborhoods around Lawrence University and downtown include many older houses converted to rentals or duplexes. Owners usually want lower heating bills and fewer complaints about cold rooms, without a gut renovation. Attic air sealing, a rim joist pass and dense-pack walls in the worst rooms deliver that, and each can be done with tenants in place if the work area is closed off and ventilated.
Appleton at a Glance
- Settled 1847. Appleton was settled in 1847, became a village in 1853 and a city on March 2, 1857.
- Housing count. The 2020 census counted 31,747 housing units, 4.4% vacant, and 75,644 residents.
- Heavy snow. Appleton averages 49.4 inches of snow a year, 12.6 inches of it in January, with a January mean low near 10°F and a record low of -32°F in 1929.
- Postwar growth. Population grew from 34,010 in 1950 to 48,411 in 1960.
- Three counties. In 2020 Appleton had 62,899 residents in Outagamie County, 11,304 in Calumet and 1,441 in Winnebago.

Appleton Questions
What should I insulate first in an older Appleton house?
Usually the attic, sealed and then filled, and the rim joist. Those two give the most comfort for the money. Walls come next.
Can you insulate a house near College Avenue with plaster walls?
Yes. We dense-pack cellulose through small holes and patch them. We check wiring first.
Does it matter that part of Appleton is in Calumet County?
Not for the insulation itself. Building rules come from the city, and the climate is the same across Appleton.
How long does an Appleton attic job take?
Most are done in a day. Removal or several areas can add time.
Free Estimates in Appleton, WI
Free on-site estimates anywhere in Appleton.
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