Snohomish County Weatherization Assistance Program

Snohomish County Community Services Division

Available Weatherization

About This Program

Federally funded weatherization program that provides free energy efficiency improvements to income-qualified households in Snohomish County. Services include insulation, air sealing, furnace repair/replacement, and other measures to reduce energy costs.

Average weatherization package value based on home assessment

Data last verified 2026-06-09. How we verify our data.

Key Details

  • Free energy efficiency improvements
  • Income at or below 200% federal poverty level
  • Includes insulation, air sealing, furnace work
  • Serves homeowners and renters
  • Applications accepted year-round

How to Apply

A grant-savvy contractor in Mukilteo, WA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Mukilteo early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Deadline: Rolling applications, subject to funding availability

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

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Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

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