Energy Trust of Oregon Crawlspace Rebates: 2026 Amounts and Eligibility

Figures current as of the January 1, 2026 incentive sheet (Energy Trust form PI 320I, version 2026.4). Energy Trust states plainly that incentives are subject to funding availability and may change, so confirm the current amount with your contractor or at energytrust.org before you budget around it.

What actually qualifies

This is where most homeowners get the wrong idea, so it is worth being blunt: Energy Trust does not rebate "crawl space encapsulation." It rebates specific energy-efficiency measures, and it pays per square foot of that measure. A crawlspace project typically touches two of them:

• Floor insulation — insulation installed in the floor joists above the crawlspace. This is the main one, and it is what most Portland crawlspace jobs claim.
• Rim joist insulation — the band of framing at the top of the foundation wall. Energy Trust folds this into its wall insulation measure rather than treating it separately.

What does not earn a rebate on its own: the vapor barrier, the dehumidifier, sealing the foundation vents, drainage work, sump pumps, and mold remediation. Those are moisture-control measures, not energy measures, and they are frequently the majority of an encapsulation bid.

The practical consequence is that a rebate offsets one line of your project, not a percentage of the total. On a $10,100 encapsulation, the insulation portion might be a few hundred dollars of rebate. That is worth claiming, and it is not a reason to choose encapsulation.

2026 Oregon incentive amounts

Amounts differ by property type, which catches people off guard. Rentals and attached homes are paid more than owner-occupied single-family homes for the same work:

Savings Within Reach is Energy Trust's income-qualified tier, which pays the higher rate to owner-occupants who meet the income guidelines. If money is tight, ask about it specifically. It is not applied automatically, and the incentive is paid to the trade ally rather than to you.

Your home also has to be served by a participating utility: Portland General Electric, Pacific Power, NW Natural, Cascade Natural Gas, or Avista. Homes outside those utilities do not qualify no matter how good the work is.

Washington side of the metro

If you are in Vancouver, Camas, Washougal, or Battle Ground, Energy Trust still applies, but only through NW Natural, and the amounts are different, generally better for owner-occupants:

Note the asymmetry: an owner-occupied Vancouver home heated by NW Natural gets $1.25 per square foot for the same floor insulation that earns $0.75 across the river in Portland. If your home qualifies on the Washington side, the rebate is a materially larger share of the job. Washington projects also require an active Washington contractor license rather than an Oregon CCB license.

The R-value rules that decide eligibility

Two numbers determine whether your crawlspace qualifies at all:

• Existing insulation must be R-11 or less. If your crawlspace was already upgraded to modern levels, you are not eligible. Most Portland homes built before the 1990s carry original R-11 or R-19 batt, and anything wet, fallen, or rodent-damaged is functionally worse than its label.
• New insulation must reach R-30 or greater, or fill the cavity, for a single-family or attached residence. Manufactured homes need R-22 or greater. For rim joists, the target is R-15 or greater, and existing rim joist insulation must be R-4 or less to qualify.

R-30 also happens to be what Oregon Residential Specialty Code requires for a vented crawlspace floor in the Portland climate zone, so a compliant install and a rebate-eligible install are usually the same install. If a contractor proposes less than R-30 for a vented crawlspace, that is worth questioning on both counts.

One important sequencing detail: existing R-value has to be documented to prove eligibility. Once the old batt is in a dumpster, the evidence is gone. This is why the paperwork conversation belongs in the inspection, not after the install.

What a rebate is actually worth

Run the numbers on a typical Portland crawlspace rather than a percentage. For an owner-occupied single-family home in Oregon at $0.75 per square foot:

• A 1,000 sq ft crawlspace returns about $750.
• A 1,500 sq ft crawlspace returns about $1,125.

Set that against the cost of the work itself. Floor insulation replacement in the Portland metro runs roughly $2,375 to $5,525, so the rebate covers somewhere between a seventh and a third of an insulation-only project. Add rim joist insulation at $1.50 per square foot of rim area and the total climbs further.

That is a meaningful discount on a job you were doing anyway. It is not, on its own, a reason to insulate a crawlspace that does not need it, and it does not change the economics of a $10,000 encapsulation very much. See the 2026 cost guide for what each service costs before incentives.

Four ways homeowners lose the rebate

Every one of these is avoidable, and all four are common:

1. Missing the 60-day window. The application and supporting documents must be submitted within 60 days of initial installation. Work finished in November and remembered in February is past the deadline.
2. Invoices not marked "paid in full." Unless the project runs through Savings Within Reach or an instant incentive, itemized contractor invoices must carry that marking and be submitted with the application. A quote or an unpaid invoice does not count.
3. No documentation of the pre-existing R-value. Eligibility depends on the old insulation being R-11 or less. If nobody photographed it before demolition, proving it afterward is difficult.
4. Assuming the contractor is handling it. Sometimes they are, particularly enrolled trade allies who file instant incentives directly. Sometimes the homeowner is expected to file. Nobody discovers the misunderstanding until the window has closed. Ask, in writing, who submits the paperwork.

How to claim it

The sequence that works:

1. Confirm your utility is one of the participating five (or NW Natural in Washington) before anything else.
2. Raise the rebate during the inspection, not after. Ask the contractor to document existing insulation R-value with photos while it is still in place.
3. Ask whether they are an enrolled trade ally, and whether you qualify for Savings Within Reach. If you are a landlord or income-qualified, this decides real money.
4. Get the scope in writing with the target R-value stated. R-30 or greater for a single-family floor; R-15 or greater for rim joists.
5. Agree in writing who files the application, and calendar the 60-day deadline from the install date.
6. Keep the itemized invoice marked paid in full.

If your crawlspace insulation is wet, sagging, or missing, you are likely both below the R-11 eligibility ceiling and overdue for the work. A free in-home inspection from a licensed Oregon CCB contractor will confirm the existing R-value, the square footage, and whether your utility participates, before you commit to anything.