Spray Foam Insulation in Geneseo, IL

Spray Foam Insulation in Geneseo covers older homes in town and shops on the farms around it. The first cabin and the first frame house in town both went up in 1837. The Rock Island Line came through in June 1854 with a stop in Geneseo. The 2020 census counted 6,539 residents.

Older homes

Geneseo has a long history and plenty of older houses. Those often have thin attics, walls with little insulation, and foundations where the rim joist leaks cold air. We seal the attic floor, add blown-in insulation to depth and foam the rim joist. For empty walls, dense-pack cellulose through small holes avoids tearing out plaster.

Farm buildings

Geneseo sits in Henry County farm country. Machine sheds, shops and pole barns sweat when warm, damp air hits cold steel. Closed-cell foam on the steel insulates and stops that condensation.

Climate and code

Henry County is in Climate Zone 5A on OpenEI's list. Illinois' energy code, now based on the 2024 IECC as amended, took effect on November 30, 2025. We use those targets on the quote.

What a visit covers

For a house in town, we check the attic, basement and any garage. For a farm shop or pole barn, we measure the walls and roof and ask how you use and heat the building. The quote lists each area with its material, thickness and price.

Costs

HomeGuide puts an average attic job at $1,000 to $2,700 and a rim joist foam job at about $2,000 to $2,500. For steel buildings, its closed-cell range is $3.00 to $5.00 per square foot installed. Older homes usually need more air sealing. Your written estimate is the price.

Older-home cautions

In older Geneseo houses we check for knob-and-tube wiring and vermiculite before we insulate. Live knob-and-tube should not be buried in insulation, and vermiculite should be tested before anyone disturbs it. If we find either, we tell you and adjust the plan.

A visit first

We come out, check the spaces you want done and send a written quote for each. Get a free estimate