Insulation in Columbia,
Bellingham.

Insulating Columbia.

Columbia is the dense grid of older bungalows just north of downtown, an established, walkable neighborhood of early-1900s to 1940s homes. The bungalows here are charming but they share two common problems: shallow attics that were never insulated to anything like current code, and cold floors over vented crawlspaces. You feel the cold coming up through the floor in winter and out through the ceiling year-round, and the heating bill reflects both.

So the bread-and-butter work in Columbia is a two-part fix: air-seal and top off the shallow attic up toward R-49, and insulate the floor over the crawlspace to R-30 with a ground vapor barrier. The vapor barrier matters here because these older crawlspaces sit on damp ground, and insulating the floor without controlling the moisture just leads to wet, falling batts. We seal first, handle the ground moisture, then insulate, and most of this work qualifies for the PSE rebate.

What we see on Columbia homes.

Common home styles

Early 1900s to 1940s homes, with thin, shallow attics. Cold floors, crawlspace damp are the moisture issues we run into most here.

Popular jobs

Attic air-seal-and-top-off, crawlspace floor insulation and vapor barrier, air sealing are the recurring work on Columbia homes, matched to the housing stock and the moisture.

Moisture & prep considerations

Like everywhere in Bellingham, we air-seal and get the moisture under control before we insulate. In Columbia that means paying close attention to cold floors, crawlspace damp, then insulating to current WA energy code.

Services we offer in Columbia.

Columbia insulation FAQ.

How much does insulation cost in Columbia?

For Columbia's older bungalows, attic insulation runs $1,800 to $5,500 and crawlspace and floor insulation $1,800 to $5,000. Doing both is common here. A lot of it is rebate-eligible through PSE. We assess the home and give you a written quote with the rebate spelled out.

Do you insulate in Columbia?

Yes. We work on Columbia's early-1900s to 1940s bungalows regularly and know the pattern, shallow attics that need topping off and cold floors over damp crawlspaces. Free in-home assessments, 7 days a week.

Why are my floors so cold in my Columbia bungalow?

Almost always the crawlspace. These older bungalows have vented crawlspaces with bare dirt and missing or fallen floor insulation, so cold, damp air moves up through the floor. We insulate the floor to about R-30 and lay a ground vapor barrier, which warms the floors and keeps the new insulation dry.

Other Bellingham neighborhoods we serve.