Licensed & insured · Since 2009

Lower bills. Quieter rooms.

Attic and wall insulation done right the first time.

Average homeowner saves
$0/yr

On heating and cooling, every year.

(503) 555-0148
We bring attics up to
R-0

The DOE-recommended ceiling rating for our region.

Rooms feel
0%

quieter

Dense insulation muffles street and HVAC noise.

Insulated attic with foil-faced insulation between rafters
What we install

Three ways we seal a home

01

Spray foam

Seals gaps cold air sneaks through.

02

Blown-in

Fast, deep coverage for attic floors.

03

Batt & roll

Clean fit for walls and crawlspaces.

Thermline technician installing pink fiberglass batt insulation
Homes sealed since 2009
0+

Two-person crews. Same-day cleanup. No subcontractors.

4.9★· 410 Google reviews
Serving Greater Portland

Within a 40-mile drive

  • Portland
  • Beaverton
  • Gresham
  • Hillsboro
  • Tigard
Good to know

Common questions

See what you'd save.

Free in-home estimate. No pressure, no fees.

Call (503) 555-0148