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Residential Rebate Application

Cascade natural gas Energy efficiency program rebates

Homeowners may apply for a rebate using the applications below. You will need your Cascade Natural Gas account number and product invoices.

If applying for a furnace rebate, please note only furnaces 95% AFUE or higher are eligible for a rebate. If you are unsure of your furnaces efficiency rating, click here to find your furnace model’s AFUE rating.

How to Apply for a Window Rebate: Click Here

You can apply for rebates directly from your customer account. Log in here to get started!

Residential-Offerings-2026-2027

Be sure to confirm the proper mailing address when sending us your application:

Cascade Natural Gas Corporation
Energy Efficiency Rebate Processing
1600 Iowa St, Bellingham, WA 98229