PSE Insulation Rebates 2026: How to Qualify and Save Up to 95%
Quick Answer: How Much Can You Save on Insulation in 2026?
If you live in the Puget Sound area and your home is under-insulated, you’re sitting on some of the best insulation rebates in the country. Between PSE rebates covering up to 50% of project costs, Snohomish PUD weatherization incentives, and the federal 25C tax credit worth up to $1,200, most homeowners can cut their insulation costs by 40 to 60%. Income-qualified households can save even more, up to 95% of the total project cost through utility weatherization assistance programs.
Key takeaway: A $3,000 attic insulation project can drop to $800 to $1,500 out of pocket after stacking a utility rebate with the federal tax credit. Income-qualified homeowners may pay as little as $150 to $300.
PSE Insulation Rebate Program (Puget Sound Energy)
PSE’s Home Energy Improvement program is the largest residential insulation rebate in our service area. If your home is heated with electricity or natural gas through PSE, you’re likely eligible.
What PSE Covers
| Insulation Type | Rebate (Electric Heat) | Rebate (Gas Heat) | Requirements |
|---|---|---|---|
| Attic insulation (to R-49) | Up to 50% of cost | Up to 30% of cost | Must upgrade from below R-30 |
| Floor insulation (to R-30) | Up to 50% of cost | Up to 30% of cost | Over unheated crawl space |
| Wall insulation | Up to 50% of cost | Up to 30% of cost | Must be previously uninsulated |
| Duct insulation | Up to 50% of cost | Up to 30% of cost | Ducts in unconditioned spaces |
Electrically heated homes get the highest rebates because insulation upgrades produce the biggest energy savings when you’re heating with electricity. If your home has a heat pump or electric furnace, PSE wants to help you keep that heat inside.
PSE Income-Qualified Weatherization
This is the program most people don’t know about. If your household income falls at or below 80% of area median income (roughly $82,000 for a family of four in King County), PSE’s Weatherization Assistance Program can cover up to 95% of insulation costs. The program is funded through a combination of PSE ratepayer funds and federal weatherization dollars.
Pro tip: The income thresholds are higher than most people expect. A household of two earning under $64,000 or a household of four earning under $82,000 typically qualifies. It’s worth checking even if you think you might not be eligible.
Which Cities Does PSE Serve?
PSE is the electric and/or gas utility for most of King County and parts of the Eastside:
- Kent, Auburn, Covington, Renton, Federal Way, Tukwila, SeaTac
- Kirkland, Woodinville, and parts of the Eastside
- Parts of unincorporated King County
If you’re in one of these cities, PSE is your path to the biggest insulation rebates. We work with homeowners across this entire service area, and we handle the rebate paperwork as part of every project.
Snohomish PUD Weatherization Program
Homeowners in Snohomish County are served by Snohomish PUD, which runs its own weatherization incentive program. The structure is a bit different from PSE, but the savings are comparable.
What Snohomish PUD Offers
| Program | Eligibility | Coverage |
|---|---|---|
| Standard rebate | All SnoPUD customers | Varies by project; rebate per square foot of insulation |
| Home Energy Audit | All SnoPUD customers | Free or reduced-cost energy assessment |
| Low-income weatherization | Income-qualified (below 80% AMI) | Up to 100% of project cost |
Snohomish PUD’s low-income weatherization program is particularly generous. Qualifying homeowners can have their entire insulation project covered at no cost, including attic, floor, and wall insulation.
Which Cities Does Snohomish PUD Serve?
- Mountlake Terrace, Lynnwood, Edmonds, Bothell (Snohomish County side)
- Everett, Marysville, Lake Stevens, and the rest of Snohomish County
If you live in Snohomish County and are thinking about insulation, the first step is contacting SnoPUD for a home energy audit. We coordinate with their program on every Snohomish County project we do.
Cascade Natural Gas Incentives
If your home is heated with Cascade Natural Gas (common in parts of Pierce County and some areas of King County), there’s a separate rebate program for insulation upgrades.
| Upgrade | Typical Rebate | Requirements |
|---|---|---|
| Attic insulation | $0.50–$1.00 per sq ft | Upgrade to R-38 or higher |
| Floor insulation | $0.50–$1.00 per sq ft | Over unheated space |
| Wall insulation | $0.50–$1.00 per sq ft | Previously uninsulated cavities |
Cascade Natural Gas rebates are smaller dollar amounts than PSE or Snohomish PUD, but they still stack with the federal tax credit. On a 1,200 sq ft attic project, that’s $600 to $1,200 back in your pocket from the utility alone.
Federal 25C Tax Credit (Energy Efficient Home Improvement Credit)
This is the federal piece of the puzzle, and it stacks on top of every utility rebate listed above. The 25C credit was expanded under the Inflation Reduction Act and is available through at least 2032.
How the 25C Credit Works
| Detail | Amount |
|---|---|
| Credit percentage | 30% of project cost |
| Annual cap for insulation | $1,200 |
| Applies to | Materials and labor |
| How you claim it | On your federal tax return (Form 5695) |
| Rollover | No, resets annually |
Important distinction: This is a tax credit, not a deduction. A $1,200 credit reduces your tax bill by $1,200 dollar-for-dollar. And because the cap resets every year, homeowners doing phased insulation projects can claim up to $1,200 each year.
Pro tip: The 25C credit applies to what you actually pay after rebates. So if your project costs $3,000, PSE covers $1,500, and you pay $1,500 out of pocket, your 30% credit is calculated on the $1,500, giving you a $450 tax credit. Your true cost: $1,050.
How Rebates Stack: Real Cost Examples
This is where things get exciting. Here’s what actual project costs look like when you stack available programs:
Example 1: PSE Customer in Kent (Electric Heat)
| Line Item | Amount |
|---|---|
| Attic insulation to R-49 (1,200 sq ft) | $3,000 |
| PSE rebate (50%) | -$1,500 |
| Out-of-pocket after rebate | $1,500 |
| Federal 25C credit (30% of $1,500) | -$450 |
| True cost | $1,050 |
That’s a 65% total savings on a project that will reduce your heating bills for the next 20 to 30 years.
Example 2: Snohomish PUD Customer in Mountlake Terrace
| Line Item | Amount |
|---|---|
| Attic insulation to R-49 (1,200 sq ft) | $3,000 |
| SnoPUD rebate (estimated) | -$800 |
| Out-of-pocket after rebate | $2,200 |
| Federal 25C credit (30% of $2,200) | -$660 |
| True cost | $1,540 |
Example 3: Income-Qualified PSE Customer
| Line Item | Amount |
|---|---|
| Attic insulation + floor insulation | $5,500 |
| PSE Weatherization Assistance (95%) | -$5,225 |
| Out-of-pocket after assistance | $275 |
| Federal 25C credit | -$82 |
| True cost | $193 |
Want to see numbers specific to your home? Our insulation cost calculator gives you an instant estimate based on your attic size, insulation type, and project scope. It takes about 30 seconds and doesn’t ask for your contact info.
Step-by-Step: How to Qualify and Claim Your Rebates
Step 1: Identify Your Utility Provider
Check your electric and gas bills. Your utility provider determines which rebate program you’re eligible for. Most homeowners in our service area fall under PSE or Snohomish PUD.
Step 2: Get a Home Energy Assessment
PSE and Snohomish PUD both offer free or low-cost home energy audits. These assessments document your current insulation levels and identify the upgrades that qualify for rebates. You can also skip straight to a contractor estimate, but the utility audit creates a paper trail that makes the rebate application smoother.
Step 3: Get Your Insulation Estimate
Get a free estimate from a licensed insulation contractor. The estimate should detail the current R-value, the target R-value, square footage, materials, and total cost. This documentation is required for the rebate application.
Step 4: Complete the Work
Have the insulation installed by a licensed contractor. Your contractor should provide before-and-after documentation, including photos of the existing insulation (or lack thereof) and the completed installation with depth markers visible.
Step 5: Submit Your Rebate Application
File your rebate application with your utility provider within 60 days of project completion (PSE’s standard window). Attach the contractor invoice, proof of payment, and any photos requested. We handle this paperwork for our customers because honestly, it’s easier for everyone that way.
Step 6: Claim Your Federal Tax Credit
When you file your federal taxes, complete IRS Form 5695 and attach it to your return. You’ll need your contractor invoice showing the insulation materials and labor costs. Keep your receipts, your contractor should provide a detailed invoice that separates materials from labor.
Key takeaway: The rebate and tax credit are completely separate filings. The utility rebate goes to your utility company. The tax credit goes on your federal tax return. You claim both independently.
What Qualifies and What Doesn’t
Not every insulation project qualifies for every rebate. Here’s the breakdown:
| Project Type | Utility Rebate Eligible? | 25C Credit Eligible? |
|---|---|---|
| Attic insulation upgrade to R-49 | Yes | Yes |
| Floor insulation to R-30 (over crawl space) | Yes | Yes |
| Wall insulation (previously empty) | Yes | Yes |
| Duct insulation | Yes | Yes |
| Spray foam (attic or crawl space) | Yes (if meets R-value) | Yes |
| New construction insulation | No | No |
| Garage insulation (detached) | No | Usually no |
| Insulation for additions | Varies | Yes (if meets code) |
The key requirement across all programs: the insulation must be installed in an existing home and must bring the space up to or above current Washington state energy code. For attics, that means R-49. For floors over crawl spaces, that’s R-30.
For a deeper look at insulation costs before rebates, our attic insulation cost guide for Seattle breaks down pricing by material type, square footage, and project scope.
Timing Matters: When to Apply
Utility rebate programs run on annual budget cycles. PSE and Snohomish PUD allocate a fixed pool of rebate funds each year, and when it’s gone, it’s gone until the next cycle. Here’s what that means for your timing:
- Spring and early summer are the best times to get your project done and your rebate submitted. Budgets are freshest and processing times are shortest.
- Fall sees a rush of applications as homeowners feel the first cold snap and realize they should have insulated months ago. Processing times can stretch.
- Late in the year risks the budget being tapped out. We’ve seen PSE pause rebate processing in late Q4 when funds run low.
The federal 25C tax credit is not subject to budget limits. It resets every calendar year, so timing only matters in terms of which tax year you want to claim it on.
Get Started: See Your Cost and Savings
The combination of utility rebates and federal tax credits makes 2026 one of the best years to insulate your home in the Puget Sound area. These programs exist specifically to help homeowners upgrade, and leaving that money on the table doesn’t make sense.
Here’s how to get moving:
- Use our insulation cost calculator to see your estimated project cost in about 30 seconds
- Request your free estimate and we’ll assess your home, confirm which rebates apply, and handle the paperwork
- We serve King County and Snohomish County, including all PSE and Snohomish PUD service areas, from our offices in Kent and Mountlake Terrace
We help every insulation customer navigate the rebate process because it directly reduces what you pay. Sadeq and the team at Green Attic have processed hundreds of these applications. We know what documentation the utilities want, and we get it right the first time so your rebate doesn’t get kicked back.
"I've seen homeowners leave thousands of dollars on the table because they didn't know their utility had a rebate program. We handle the paperwork on every job because the savings are too significant to skip."
Sadeq, Owner
"The income-qualified programs are the best-kept secret in home improvement right now. I've seen customers get a $5,000 insulation job done for under $200 out of pocket. If your household income qualifies, there's no better time to upgrade."
Sadeq, Owner
Frequently Asked Questions
How much is the PSE insulation rebate in 2026?
PSE's Home Energy Improvement program covers up to 50% of insulation project costs for electrically heated homes and up to 30% for gas-heated homes. Income-qualified homeowners can receive up to 95% coverage through PSE's Weatherization Assistance Program, which has expanded eligibility in 2026.
Can I combine PSE rebates with federal tax credits?
Yes. PSE utility rebates and the federal 25C Energy Efficient Home Improvement Credit are completely separate programs. You can claim both on the same project. That means a PSE rebate covering 50% of your project cost plus a federal tax credit of up to $1,200 on whatever you pay out of pocket.
Which utility provider do I have for insulation rebates?
It depends on your city. PSE serves most of King County including Kent, Renton, Auburn, Federal Way, Kirkland, and Woodinville. Snohomish PUD serves Snohomish County cities like Mountlake Terrace, Lynnwood, Edmonds, and Bothell. Seattle and Shoreline are served by Seattle City Light. Each has its own rebate program.
Do I need to use a specific contractor for PSE rebates?
PSE requires that insulation work be performed by a licensed contractor, but they do not mandate a specific contractor list for standard rebates. The contractor needs to provide documentation of the work performed, materials used, and R-values achieved. For income-qualified programs, PSE may use their own approved contractor network.
How long does it take to get my PSE rebate check?
Most PSE rebates are processed within 6 to 8 weeks after submitting your completed application with all required documentation, including the contractor invoice, proof of payment, and before-and-after photos if requested. Snohomish PUD rebates typically process in 4 to 6 weeks.
What insulation qualifies for utility rebates in Washington?
Attic insulation upgrades to R-49, floor insulation over crawl spaces to R-30, and wall insulation are all eligible. The insulation must be installed in an existing home, not new construction. Both blown-in and batt insulation qualify, and the work must bring the space up to or above current Washington state energy code requirements.