Weatherization

Boost energy efficiency: Financial assistance for low-income homeowners and renters.

The Weatherization Program offers cost-effective energy efficiency repairs to reduce energy bills and increase home health, safety and durability for qualified homeowners and renters. The Department of Commerce allocates federal and state funds to local agencies who specialize in insulation, air sealing, ventilation, and more to ensure your home stays cozy in the winter and cool in the summer.​

Learn more about weatherization: Weatherization Guide (PDF) | Weatherization Guide – Spanish (PDF).

Community-scale weatherization workshops on July 2

On July 2, Commerce is hosting two workshops to collect feedback on the questions presented at our June 11 webinar.

• Register for the July 2 public Community-Scale Weatherization Workshop at 9 a.m.

• Register for the July 2 tribal only Community-Scale Weatherization Workshop at 1 p.m.

Community-scale weatherization projects

Commerce is working on draft rules to launch new community-scaled weatherization projects.

House Bill 2338, passed during the 2026 legislative session, created a new way to fund community-scale weatherization projects through Commerce’s existing weatherization program. A community-scale weatherization project improves multiple homes in the same neighborhood or area. These projects are focused on communities where environmental, social, or economic conditions create challenges for residents, as identified by Commerce.

The bill outlines how Commerce will solicit and approve community-scale weatherization project proposals from potential sponsors, and it requires the department to conduct rulemaking to design and implement the program. We’ll post rulemaking materials and updates when they are available.

June 11 community-scale workshop – public engagement materials

On June 11, Commerce hosted a webinar to kick off public engagement for the draft rules. Commerce staff provided an overview of the program and presented specific questions for community feedback. We’re collecting feedback through July 2.

Watch the meeting recording and download the slides

We’re accepting written responses to the questions presented at the workshop through July 2. You can submit your feedback to communityscale@commerce.wa.gov.

We included the following questions for feedback in the slides:

1. What should qualify as a “community-scale” weatherization project, and what information should partners be expected to provide in a proposal to Commerce?
2. What socioeconomic data should Commerce consider in evaluating community scale weatherization projects for identified priority communities?
3. What are examples of communities you would like to see as eligible for community-scale weatherization? Where do you see need that you would like this program to serve?
4. What other considerations would you like Commerce to be aware of as we draft rules?

Does my household qualify for weatherization assistance?

Are you looking for ways to lower your energy bill? Maybe you’re looking to reduce your carbon footprint. Whatever your motivation is, we’re here to help. Weatherization is available to Washington state homeowners and renters who make up to 200% of the federal poverty level (200% FPL), 60% of the state median income (60% SMI), or 80% of the area median income (80% AMI). Please reach out to your local agency (referenced below in Weatherization agency by county) to determine if your income falls within any of these three thresholds.

How to apply for weatherization

Once you’ve determined you are eligible for assistance, contact your local weatherization agency listed below to be qualified and accepted into the Weatherization program.

Understanding the application process

If your household qualifies for weatherization assistance, a local certified professional will conduct a comprehensive energy audit to identify updates to your home that will lower your utility bills. When your audit is complete, your local weatherization agency will use cost-effective calculations to determine which upgrades will have the biggest impact on the efficiency, health and safety of your home.

Weatherization work

• Insulation – Ensures your home has a proper thermal boundary, similar to how a blanket retains warmth. ​
• Weather stripping – Seals the cracks in doors and windows to get rid of the draft. ​
• Air sealing – Seals major air leaks from the attic, basement and other drafty areas. 
• Ventilation – Gets rid of moisture in the air from the kitchen and bathroom. 
• LED light bulbs – Uses a fraction of the energy with CFL or incandescent bulbs. ​
• Smoke/carbon monoxide detector – Keeps your home safe from elevated levels of harmful contaminants. ​
• Hot water and HVAC – Ensures your systems are working properly and efficiently. ​
• Healthy home education – Learn best practices for maintaining and elevating your home’s health and safety. ​

Please note: Weatherization is not a window replacement program. We cannot guarantee your home will be eligible for specific upgrades.

Weatherization benefits

• Energy efficiency: Increases home energy efficiency, reducing energy costs.
• Health and safety: Addresses energy-related hazards, including indoor air quality, combustion safety, carbon monoxide levels, and mold or hazardous materials like asbestos and lead.​
• Cost savings: Saves homeowners and renters hundreds of dollars every year, freeing up funds for other expenses.​
• Environmental impact: Reduces greenhouse gas emissions and stress on the power grid, making homes resilient to the effects of climate change.​

Resources

Resources for low-income households

Low-Income Home Energy Assistance Program (LIHEAP)

State Home Energy Assistance Program (SHEAP)

Home Rehabilitation Grant Program (HRGP)

Weatherization Plus Health Report