What insulation rebates pay in Vancouver, Washington
We read Clark Public Utilities' weatherization page on October 6, 2026. The rebates are for existing electrically heated single-family homes and manufactured homes. Clark says it also offers income-qualified versions of some of these rebates.
Attic insulation
Existing insulation must be R-19 or less. New insulation must reach R-38 or R-49.
Floor insulation
Existing insulation must be R-11 or less. New insulation must reach R-19, R-25 or R-30.
Wall insulation
For walls that have not been done before, with no existing insulation. New insulation must reach R-11.
Duct sealing
A prescriptive rebate. The page lists the amount as $200 or $500 and we did not read which jobs get which.
State help for lower incomes
The state's home electrification program covers heat pumps and wiring, not insulation. For insulation help, ask your community action agency about weatherization.
Working it out
Suppose a Vancouver house has a 1,000 square foot attic at R-11 and a 1,000 square foot floor at R-11. At $0.75 per square foot each, the rebates are $750 plus $750, or $1,500. If 1,200 square feet of walls with no insulation are filled, add 1,200 times $1.20, or $1,440. Together that is $2,940. Your actual areas are measured by the contractor.
Fewer old homes, fewer rebates
The US Census Bureau's American Community Survey (2020 to 2024) says about 40 percent of homes in Vancouver, Washington were built before 1980, and only about 5 percent before 1940. About 27 percent were built in 2000 or later. Clark's rebates only pay when your existing insulation is thin, so a newer home may not qualify. The utility's own page says new homes are required to have R-49 insulation in the ceiling and R-30 in the floor over unconditioned space. If your attic is already near R-38, you are probably done.
About 68 percent of Vancouver homes heat with electricity. That matters, because the weatherization rebates are for electrically heated homes.
Whether more insulation pays
Clark's page makes an honest point. How much more insulation you need depends on the cost of the fuel you use to heat your home. From a purely money view, the less you pay for fuel, the less sense extra insulation makes, so the rebate matters more for an electric home. The utility notes that homes built in the 1960s and 1970s often have little insulation because fuel was cheap then. Check your attic and ask for a measurement before you spend.
Doors and ducts
The same page pays $40 for an ENERGY STAR insulated exterior door. Ducts are another place for savings. A prescriptive duct sealing rebate pays $200 or $500, and a duct insulation rebate applies when ducts run through unheated space with no insulation. We did not read the full duct rules. Call Clark's energy counselors at 360-992-3355 and ask what applies to your ducts.
How to claim a Vancouver, Washington insulation rebate
- Confirm that Clark Public Utilities serves your home and that your main heat is electric.
- Ask a contractor to measure your existing insulation and report the R-value for each area.
- Compare that with the starting levels on the rebate page.
- Keep the final invoice showing square feet and the new R-value.
- Apply to the utility and ask about the income-qualified version if your income may qualify.
Common questions
How much does Clark pay for insulation?
$0.75 per square foot for floors and attics and $1.20 per square foot for walls, when your existing insulation is thin.
Do I need electric heat?
Yes. The page says these rebates are for electrically heated single-family and manufactured homes.
Is there an income-qualified program?
Clark says it offers income-qualified versions for some of the rebates, and a separate income-qualified insulation page. We did not read the income limits.
Do I need a certain contractor?
The weatherization page we read does not say. Ask the utility.
Is there a federal credit?
No. The IRS says the home improvement credit covers improvements through December 31, 2025.
What to do next
See the Vancouver window page or go back to the Vancouver rebate hub.
By Sam Menard. Sources, last read October 6, 2026: Clark Public Utilities weatherization program, Clark Public Utilities all rebates and incentives, IRS Energy Efficient Home Improvement Credit. All Vancouver rebates → Every Clark Public Utilities rebate →