A railroad town older than its suburbs

Spray Foam Insulation in North St. Paul, MN

North St. Paul was laid out in 1887. Its older streets need different insulation work than its newer ones.

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

A Town With Its Own Old Core

Spray foam insulation in North St. Paul deals with a small city that is older than the suburbs around it. North St. Paul was laid out in 1887 as Castle, when the Wisconsin Central Railroad reached it, and it still has a downtown of brick storefronts. Point2Homes' 2019-2023 census summary shows 7.3% of homes built before 1940, 4.9% in the 1940s, and a median construction year of 1973.

Two kinds of houses

Near downtown and around Silver Lake, older homes often have plaster walls, small attics and fieldstone or block foundations with leaky sills. Farther out, the housing is mostly 1950s through 1970s ramblers and split-levels. The first group often needs wall fill and careful attic sealing; the second usually needs rim joist foam and more attic depth.

Small city, quick visits

North St. Paul covers about three square miles, and much of it is a short drive from any other part. That makes it easy to schedule an inspection.

Code targets

Ramsey County is in Climate Zone 6 of Minnesota's energy code, where the efficientwindows.org summary lists R-49 ceilings. We use that as the goal for attics and fit walls and basements to what the framing allows.

Stone and block foundations

Older homes near downtown sometimes sit on fieldstone or block foundations, which can let in both air and moisture. We seal the sill plate area and rim joist with closed-cell foam, but we check the walls first. Stone foundations that weep water need drainage work, not foam.

Budget planning

For a typical postwar North St. Paul house, an attic seal and top-up and rim joist foam together cover most of the gain. HomeGuide lists the average attic job at $1,000 to $2,700 and rim joist foam at $2,000 to $2,500 nationally, and the written estimate after our visit sets your price.

Rebate testing

If you plan to use Xcel Energy's insulation and air sealing rebate, the air sealing portion requires blower door tests before and after. We plan the work around that schedule.

Call (651) 661-2833 to schedule. Get a free estimate

What to Know in North St. Paul

Origins. Laid out in 1887 as Castle when the Wisconsin Central Railroad was extended there; many structures in town are older, including a brick downtown (Wikipedia).
Housing age. Median construction year 1973; 7.3% built before 1940 and 4.9% in the 1940s (ACS 2019-2023 via Point2Homes).
Size. 3.01 square miles, including Silver Lake and Casey Lake, with 4,984 housing units in 2020 (Wikipedia).
Code zone. Ramsey County is in Climate Zone 6 under Minnesota's energy code (efficientwindows.org summary).

Our Services in North St. Paul, MN

North St. Paul Questions

Can you insulate an older house near downtown North St. Paul?

Yes. We fill closed walls through small holes and seal the attic, checking for old wiring and vermiculite first.

What about a stone or block foundation?

We seal and insulate the rim and sill area above it, and check the walls for moisture before covering anything.

How soon can you come out?

Call and we will set a time; North St. Paul is a short trip.

Is foam safe on a stone foundation wall?

It can be, if the wall is dry. We check for moisture and recommend drainage fixes first if water is coming through.

Free Estimates in North St. Paul, MN

Free on-site estimates in North St. Paul.

Call (651) 661-2833 Free Estimate