Mississippi river town, new subdivisions

Spray Foam Insulation in Cottage Grove, MN

Cottage Grove is still building. New owners finishing basements and garages call us most.

Free on-site estimates
Written quote with material, depth and R-value for each area
Air sealing done before any insulation covers it

Finishing Off Newer Cottage Grove Homes

Spray foam insulation in Cottage Grove often comes up when owners of newer homes finish a basement or a garage. Point2Homes' summary of 2019-2023 census data gives a median construction year of 1990, with 14.8% of homes added in 2000-2009, 9.2% in 2010-2019 and 7.4% since 2020. Once a rural township known for creameries and wheat, the city now has 13,445 housing units and borders the Mississippi along its south side.

Basement finishing

New basements here have poured walls and a rim joist that the builder often left with only batts or a bit of foam. Before framing, closed-cell foam on the rim and the walls keeps warm, moist air off the concrete, which is the main moisture risk in a finished Minnesota basement.

Garages and shops

Owners with large attached or detached garages often want to heat them. Closed-cell foam on the walls and ceiling seals and insulates in one pass and holds up in a space with temperature swings.

Older farmhouses and 1970s homes

The older parts of town include 1960s and 1970s neighborhoods and some farmhouses. Those get the standard attic seal and top-up and rim joist work.

Costs for basement and garage work

National guides list closed-cell foam at $3.00 to $5.00 per square foot (HomeGuide) and rim joist foam at $2,000 to $2,500. Basement and garage projects are priced by measured wall and ceiling area.

Moisture checks

Basements in newer homes are usually dry, but we still check for dampness on walls and slab before foaming.

Call (651) 661-2833 or ask for an estimate. Get a free estimate

What to Know in Cottage Grove

Housing age. Median construction year 1990; 14.8% built 2000-2009, 9.2% in 2010-2019 and 7.4% since 2020 (ACS 2019-2023 via Point2Homes).
Setting. Cottage Grove lies on the north bank of the Mississippi above its confluence with the St. Croix; 3.86 of its 37.48 square miles is water (Wikipedia).
History. Once a rural township known for the state's first creameries and wheat; 3M has operated a plant there since 1947 (Wikipedia).
Code zone. Washington County is in Climate Zone 6 of Minnesota's energy code (efficientwindows.org summary).

Basement & Rim Joist Insulation in St. Paul, MN

Our Services in Cottage Grove, MN

Cottage Grove Questions

Should my new-build basement get spray foam before finishing?

On the rim joist, almost always. On the walls, it is one of the better options for keeping moisture off the concrete.

Can you insulate a detached garage?

Yes. Closed-cell foam on walls and ceiling is common for garages owners plan to heat.

Do you work in older parts of town too?

Yes, including 1960s and 1970s neighborhoods and older farmhouses.

How much does foaming a garage cost?

It depends on wall and ceiling area and thickness. National ranges for closed-cell foam are $3.00 to $5.00 per square foot; we measure and price it in writing.

Free Estimates in Cottage Grove, MN

Free on-site estimates in Cottage Grove.

Call (651) 661-2833 Free Estimate