Spray Foam Insulation in Moline, IL

Spray Foam Insulation in Moline often starts in an older house. The city was platted in 1843 and incorporated in 1848, its name drawn from the French word for mill, and it grew around the water power of the Sylvan Slough dam and later John Deere's factories. Point2Homes data shows about 29.1% of Moline homes were built in 1939 or earlier, and another 15.5% in the 1950s and 14.6% in the 1960s.

Factory-era houses

Moline's founders, mostly New Englanders, laid the town out on a tight grid, and immigrants from Sweden, Belgium and Germany filled it in. Many of the older houses are two-story frame homes on narrow lots. They tend to have tall, drafty attics, walls with little or no insulation, and a rim joist that leaks along the whole foundation. Sealing the attic floor and the rim usually comes first.

Illinois code

On this side of the river, the Illinois Capital Development Board says the 2024 IECC as amended by Illinois took effect on November 30, 2025, and residential buildings must comply with the Illinois Energy Conservation Code. Rock Island County is in Climate Zone 5A. That code governs new work; for an existing house we use it as a target and write the R-value on the quote.

Cold, snowy winters

The climate table for Quad City International Airport, in Moline, lists a January normal mean of 22.6F, an average January low of 14.8F, about 36.1 inches of snow a year and a record low of -33F. That is a lot of hours for heat to leak out through an unsealed attic.

Typical Moline work

In a pre-war Moline two-story, we usually start in the attic: sealing around the chimney, plumbing vent and light fixtures, capping open wall cavities at the top plates, and then blowing cellulose or fiberglass to depth. Downstairs, the basement rim gets closed-cell foam. If the walls are empty and the wiring is safe, dense-pack cellulose finishes the job. In a 1950s or 1960s ranch, the plan is simpler: attic sealing, blown-in and rim foam.

Rebates on the Illinois side

Utility programs on the Illinois side of the river are different from Iowa's, and they change from year to year. Ask your gas and electric utility about current insulation and air sealing rebates before you schedule, and keep the invoice. We itemize materials and areas on ours so it can be used for a rebate claim.

Mid-century homes

For the 1950s and 1960s ranches, the job looks like the rest of the Quad Cities: rim joist foam, attic air sealing and blown-in to depth. If you are finishing a basement, call before the framing goes up. Get a free estimate