How to Save on a Window or Door Replacement in Maine Now That the Federal Tax Credit Has Ended
The 25C Energy Tax Credit Expired December 31, 2025 — Here's How Maine Homeowners Can Still Cut Costs

If you've been holding off on replacing your windows or doors because you were counting on a tax credit, there's something you need to know: the federal Energy Efficient Home Improvement Credit — the tax break homeowners have used for the past few years to offset the cost of new windows and doors — expired on December 31, 2025. It was eliminated under the One Big Beautiful Bill Act, and as of 2026, there is no federal tax credit for replacing windows or exterior doors.
We're bringing this up because a lot of the information still floating around online is out of date. Search "window tax credit" and you'll find plenty of articles — some written just last year — describing a credit that no longer exists. We'd rather you hear it straight from us than plan a project's budget around money that isn't there anymore.
The good news: an expired tax credit doesn't mean there's no way to make a window or door project more affordable. It just means the savings look a little different in 2026 than they did in 2025.
What the Old Credit Covered (For Reference)
Through 2025, the Energy Efficient Home Improvement Credit (IRS Section 25C) allowed homeowners to claim:
- Up to $600 total for qualifying exterior windows and skylights
- Up to $500 total (capped at $250 per door) for qualifying exterior doors
Those numbers only apply to products installed on or before December 31, 2025. If your project is going in during 2026 or later, this credit is off the table — no exceptions, no extensions currently on the books.
Where Homeowners Get Confused
A few things are commonly mixed up with the expired window/door credit, so it's worth clearing them up:
- State rebates are a separate program. Efficiency Maine offers rebates for certain home energy upgrades, but as of this writing those programs are focused on insulation and air sealing — not windows or doors specifically. Programs change, so it's always worth checking EfficiencyMaine.com directly before you assume something does or doesn't apply to your project.
- Heat pump and other equipment credits are different from the windows/doors credit. Some federal and state incentives for heating and cooling equipment work on a different timeline. Don't assume that because one credit is gone, they all are — but also don't assume a credit for a furnace or heat pump applies to windows.
- Manufacturer promotions are not tax credits, but they can still save you real money — more on that below.
So How Can You Still Save?
1. Financing. We offer financing options that let you spread the cost of a window or door project over time instead of paying it all upfront. For a lot of homeowners, this is a bigger practical difference-maker than a tax credit ever was, especially since a tax credit only shows up once a year at filing time — financing helps with the cost right now.
2. Manufacturer and seasonal promotions. Andersen, Pella, and other manufacturers periodically run rebates or promotional pricing, and we run our own seasonal offers as well. These change throughout the year, so it's worth asking us what's currently available when you're ready to get a quote — timing your project around a promotion can meaningfully lower the price even without a tax credit.
3. Lower energy bills over time. This isn't a rebate check, but it's real money. Old, drafty windows and doors let conditioned air leak out constantly, which means your furnace or heat pump has to work harder through a Maine winter. Replacing them with properly installed, energy-efficient units reduces that loss. It won't show up as a lump sum, but it shows up every month on your heating bill for as long as you own the windows.
4. Avoiding the cost of deferred damage. Windows and doors that have failed — rotted frames, broken seals, doors that no longer close properly — don't just waste energy, they can lead to water intrusion, drafts that stress your heating system, and in some cases structural damage to the surrounding wall. Replacing a failing window or door before it causes secondary damage is its own form of savings, even if it's not one you'll see reflected on a tax form.
A Note on Planning Your Budget
If you were specifically waiting for the tax credit to make a project affordable, we'd rather have an honest conversation about financing and timing now than have you delay a needed replacement based on outdated information. Bring us your project — whether it's one window, a full-home replacement, or a couple of exterior doors — and we'll walk through what financing and current promotions actually look like for your situation.
Frequently Asked Questions
Is there still a tax credit for replacing windows or doors in 2026? No. The federal Energy Efficient Home Improvement Credit (Section 25C) that covered windows and exterior doors expired for installations after December 31, 2025. There is currently no federal tax credit for window or door replacement.
What was the old window and door tax credit worth? Through 2025, it was worth up to $600 total for exterior windows and skylights, and up to $500 total (capped at $250 per door) for exterior doors. Those amounts no longer apply to 2026 installations.
Does Maine offer any state rebates for new windows or doors? Efficiency Maine's current residential rebate programs are centered on insulation and air sealing rather than windows or doors specifically. Rebate programs do change, so it's worth checking directly with Efficiency Maine or asking us for the latest information when you're planning your project.
Do you offer financing on window and door installations? Yes. We offer financing options so you can move forward with a project without paying the full cost upfront. Ask us about current terms when you request a quote.
Will new windows still pay for themselves through lower heating bills without the tax credit? Energy-efficient windows and doors reduce heat loss compared to old, drafty units, which typically lowers heating costs over time. The payback period depends on your current windows' condition, your home's size, and local energy costs, so it varies by project — but the ongoing savings are real even without a one-time credit.
Are there any current promotions or discounts running? Manufacturer and seasonal promotions change throughout the year. Contact us for what's currently available — timing a project around a promotion can lower your overall cost.
See our current promotion below.






