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Bellingham Heating & Cooling — Bellingham's Energy Savings Team
A technician servicing a furnace in a Whatcom County home

Cascade Natural Gas Corporation

Cascade Natural Gas Residential Rebates

Amounts not published in a verifiable form — Cascade’s rebate pages block automated retrieval and the current offerings PDF renders without its amount table. Figures circulating online (tankless $700, insulation $2.00/sq ft, duct sealing $500) come from a 2024 document and are treated as stale.

Amounts not published in a verifiable form

Confirm before you count on it

Cascade’s rebate pages block automated retrieval and the current offerings PDF renders without its amount table. Figures circulating online (tankless $700, insulation $2.00/sq ft, duct sealing $500) come from a 2024 document and are treated as stale.

Administered by
Cascade Natural Gas Corporation
Deadline
Apply within 90 days of installation
Applies to
gas furnace · condensing boiler · tankless water heater · insulation · duct sealing · smart thermostat
Paperwork
You file it yourself

Verified 2026-09-04 against the program's own published terms . Nothing on this page is retyped from an aggregator.

Not sure whether you qualify?

Eligibility on these programs turns on details of your specific house: existing heat type, panel capacity, equipment model, household income, and who does the work. Tell us the address and what you have now and we will tell you which programs are actually in play.

Call (360) 592-3824

See all Bellingham rebates →

  • WA L&I #BELLIHC808NM Active registration — verify it with the state
  • $30,000 bonded Surety bond on file with L&I
  • $1,000,000 insured General liability coverage
  • Local since 2020 Owner-operated in Whatcom County
  • We pull the permit City of Bellingham or Whatcom County, and we meet the inspector

Every requirement, not the highlights

A rebate is lost on the smallest of these. Check the list against your own house before you plan around the money.

  • Washington Cascade Natural Gas customer on residential rate schedule 503
  • Home must be gas-heated for space-heat and weatherization rebates
  • Furnaces must be at least 95% AFUE
  • Application within 90 days
  • Trade Ally required for insulation and air sealing

Who files it, and how the money reaches you

You file it yourself. The paperwork is yours, and so is the deadline. We hand you the completed invoice with the install date, brand, model and amount already on it, because those are the fields the form asks for.

Call Cascade Natural Gas at 866-626-4479 for the current amounts before you commit to gas equipment on the strength of a rebate. Rebate processing for this region runs out of 1600 Iowa Street in Bellingham.

Cascade Natural Gas Residential Rebates — questions we get

How much does the Cascade Natural Gas Residential Rebates pay in 2026?
Amounts not published in a verifiable form. Cascade’s rebate pages block automated retrieval and the current offerings PDF renders without its amount table. Figures circulating online (tankless $700, insulation $2.00/sq ft, duct sealing $500) come from a 2024 document and are treated as stale. Administered by Cascade Natural Gas Corporation, verified 2026-09-04 against the program's own published terms.
Who files the Cascade Natural Gas Residential Rebates paperwork?
You file it yourself. Call Cascade Natural Gas at 866-626-4479 for the current amounts before you commit to gas equipment on the strength of a rebate. Rebate processing for this region runs out of 1600 Iowa Street in Bellingham.
When does the Cascade Natural Gas Residential Rebates expire?
Apply within 90 days of installation. Amounts and deadlines on utility and manufacturer programs change without notice, so we re-check the specific program before a project is committed.
Is the Cascade Natural Gas Residential Rebates available at a Bellingham address?
We list this program because Cascade is Bellingham’s gas utility, but we will not print dollar amounts we could not verify. Confirm current figures with Cascade directly.

See whether this one applies to your house

Tell us how the home is heated now, roughly when it was built, and what you are considering. We will come back with the programs that apply to your address and what each one actually pays.

Or call or text (360) 592-3824. Estimates carry the standard $89.99 trip charge, refunded as company credit when you accept the bid. We do not sell or share your details.

Program terms verified 2026-09-04 · Cascade Natural Gas Corporation source page · All Bellingham rebates

Ready for a straight answer on your house?

Tell us what you have now and what you want it to do. We will tell you what fits, what it costs, and which rebates you actually qualify for — before anyone comes out.

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