Insulation Cost in Sammamish, WA in 2026
Most Insulation projects in Sammamish, WA cost between $1,600 and $6,500. The typical price is $3,100.
Labour and materials in Sammamish run about 13% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Batt, blown-in cellulose or closed-cell spray foam
- Target R-value for your climate zone
- Attic, wall or crawlspace access
- Air sealing done alongside the insulation
Usually included
- Insulation material to the specified R-value
- Installation and air sealing at obvious gaps
- Cleanup and disposal
Usually extra
- Removing contaminated existing insulation
- Ventilation or moisture remediation
- Drywall work for wall injection
Unit prices in Sammamish, WA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.30 |
| Mid-range | $2.61 |
| High-end | $5.44 |
Insulation contractors in Sammamish, WA
Businesses listed on Google near Sammamish, WA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Attic Doctor
4.9(247 reviews)
10333 NE 1st St #154, Bellevue, WA 98004
Super Attic Solutions
4.9(214 reviews)
11335 NE 122nd Way Ste 105, Kirkland, WA 98034
Elevate Insulation
5.0(102 reviews)
19125 N Creek Pkwy Ste 120-2021, Bothell, WA 98011
Cascade RetroFoam
4.9(106 reviews)
15300 Woodinville Redmond Rd NE Office 16, Woodinville, WA 98072
USA Insulation of North Puget Sound
4.9(87 reviews)
11905 124th Ave NE, Kirkland, WA 98034
Specialty Insulation NW
5.0(48 reviews)
11335 NE 122nd Way Ste 105, Kirkland, WA 98034