Insulation in South Hill,
Bellingham.

Insulation and weatherization for South Hill, done for our wet marine climate. We air-seal and manage the moisture first, then insulate to code.

Insulating South Hill.

South Hill climbs the slope above Fairhaven, and its streets filled in fast after the streetcar reached Garden and 16th around 1909. Most of the neighborhood was built in the 1910s and 1920s, with a heavy concentration of Craftsman and European Revival homes from the late 1920s. These are beautiful houses, but they were built long before insulation was code, so the attics are usually thin and settled and a lot of the walls are barely insulated. The bedrooms get cold, and the heating bill shows it.

The catch on South Hill is age. A lot of these pre-1950s homes still have some knob-and-tube wiring, and by code we can't bury live knob-and-tube in insulation, so we always check for it before we touch an attic. Once that's handled, the highest-impact work here is usually air sealing the attic floor and topping the attic up to about R-49, plus dense-packing the empty walls where it helps. We air-seal first, manage the moisture, then insulate, and we size the job to capture the PSE rebate.

What we see on South Hill homes.

Common home styles

1910s to 1930s homes, with thin or empty, knob-and-tube common. Cold rooms, settled attics are the moisture issues we run into most here.

Popular jobs

Attic air-seal-and-top-off, air sealing, dense-pack wall insulation are the recurring work on South Hill 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 South Hill that means paying close attention to cold rooms, settled attics, then insulating to current WA energy code.

Services we offer in South Hill.

South Hill insulation FAQ.

How much does insulation cost in South Hill?

For South Hill's 1910s to 1930s homes, attic insulation usually runs $1,800 to $5,500 and air sealing $800 to $3,000, with dense-pack walls $2,500 to $7,000 where they're empty. A lot of it is rebate-eligible through PSE. We assess the home, check for knob-and-tube, and give you a written quote with the rebate.

Do you insulate in South Hill?

Yes. We work on South Hill's older Craftsman and European Revival homes regularly and know what to expect, thin settled attics, empty walls, and knob-and-tube to check for. We always look for knob-and-tube before blowing an attic. Free in-home assessments.

My South Hill home has knob-and-tube wiring. Can you still insulate?

We check for it first. By code, live knob-and-tube can't be buried in insulation, and a lot of South Hill's pre-1950s homes still have some. If we find it, it has to be cleared before we blow the attic. It's one of the first things we look for on an older home here.

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