Washington & Oregon RetroFoam has a new name — Cascade RetroFoam. Learn More →
Cascade RetroFoam — For Existing Homes
Services RetroFoam Wall Insulation Insulation Retrofit Residential Insulation Commercial Insulation Sound Insulation Multi-Family Insulation Locations Seattle Tacoma Bellevue Everett Olympia Kent Puyallup How It Works Projects Resources How To Insulate Existing Walls Why Is My House Cold? High Energy Bills Soundproofing Existing Walls Retrofit vs New Construction PSE & Utility Rebates FAQ Seattle (425) 520-0043 Portland (503) 404-4557 Free Quote
Seattle Area · Portland / Vancouver

Old home feel cold, drafty, or expensive to heat?

Cascade RetroFoam re-insulates the existing walls of older homes — warmer rooms, fewer drafts, a quieter house — without tearing it apart. Most homes done in a single day.

Get a Free Quote Seattle (425) 520-0043 Portland (503) 404-4557
Eco-Friendly Class 1 Fire Rated Lifetime Warranty One-Day Install
Ask about utility rebates — can cover up to 30% of the cost →
See RetroFoam injection foam insulation in action
Comfort first

Warmer, quieter, and easier on the bills

Most homeowners come to us for comfort. The energy savings help pay it back over time.

Even, cozy comfort

Foam fills the gaps fiberglass leaves behind — ending cold rooms, drafts, and uneven temperatures from floor to floor.

Done in a day

Installed from the outside in most cases, with minimal disruption. Most projects finish start-to-finish in a single day.

Safe & guaranteed

A Class 1 Fire Rating, no off-gassing, and a lifetime warranty — your investment in a warmer home is protected for good.

Where we work

Local crews across the Northwest

We're the local team that shows up at your door — not a national directory.

Washington

Seattle / Tacoma Area

Damp, cold winters and beautiful older homes. We tackle cold bedrooms, drafty walls, and noise.

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Oregon / Washington

Portland / Vancouver

Older bungalows, ranches, and mid-century homes that lose heat through under-insulated walls.

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Seattle Neighborhoods

We serve homeowners throughout Seattle, including:

Ballard Wallingford Green Lake Phinney Ridge Fremont Queen Anne Capitol Hill Beacon Hill Mount Baker Madrona West Seattle Admiral Alaska Junction Genesee Fauntleroy Ravenna Bryant Wedgwood View Ridge Maple Leaf Laurelhurst Magnolia Sunset Hill Crown Hill Northgate Roosevelt Montlake Madison Park Seward Park Columbia City Leschi

Tacoma Neighborhoods

We also serve homeowners throughout Tacoma, including:

North End North Slope Stadium District Proctor District Old Town Tacoma West End Central Tacoma Fern Hill South Tacoma University Place Lincoln District McKinley Hill Eastside Tacoma Hilltop Ruston South End
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Or call us: Seattle (425) 520-0043 · Portland (503) 404-4557

Seattle
(425) 520-0043 Portland
(503) 404-4557 Free Quote