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Snohomish County Weatherization Program

Snohomish County Office of Energy & Sustainability · County program

Free improvements; no cash cap listed.

Snohomish County provides free home energy improvements and conservation education to qualifying low-income households. The program helps homeowners and renters lower utility costs, but income approval does not guarantee the home will receive work.

Last verified: August 6, 2026
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Program details

How it works

The Snohomish County Weatherization program provides FREE home energy improvements and conservation education to qualifying low-income households. The county says the program is designed to help homeowners and renters lower utility costs and make homes more comfortable.

There are two qualifiers:

  1. household income eligibility through verification, and
  2. energy/weatherization improvement eligibility through a home assessment.

Even if a household meets the income rules, that does not guarantee the home will be eligible for energy/weatherization improvements.

What the money covers

Examples of improvements can include:

  • installation of insulation
  • air sealing
  • weather stripping
  • other efficiency measures
  • heating system repair or improvements
  • ventilation improvements
  • safety improvements

The page describes the work as free service and does not give a cash amount or reimbursement cap.

Who can apply

Eligible property types listed on the page include:

  • single-family homes
  • mobile homes
  • duplexes
  • multi-family buildings

The program is available to homeowners and renters. Renters may apply with required property owner approval and landlord agreement.

How to apply

Snohomish County directs applicants to view the program income guidelines by household and complete the Pre-Qualification Form if they meet the criteria. If they do, the county says it will send a complete application.

Applicants must meet program and income requirements and provide income verification documentation before the county proceeds to the next step.

Timing and deadlines

If income requirements are met through the application process, the county will schedule an energy assessment of the home. The assessment is currently described as taking 4-6 months to schedule.

The page does not list a fixed closing date or a limited application window.

Full eligibility details

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