Window Replacement Cost in Maine
What it actually costs in Maine, who you need to hire, and where prices run high or low.
State Average
~ Near avg$18,285
Typical Range
$14,628 – $21,942
Varies by city and scope
National Baseline
$17,640
Cost vs. Value 2026
What to know about window replacement in Maine
window replacement costs in Maine track close to the national average. You're looking at around $18,285 statewide, versus $17,640 nationally. That number covers 311 ZIP codes across the state. Cities and resort markets run higher. Rural areas pull it back down. See a detailed estimate for York for a market-specific breakdown.
Maine requires a state license for window replacement contractors. Worth a quick check before you sign anything. Look up the license number at the state licensing board. Unlicensed work can void manufacturer warranties and make insurance claims a lot harder.
Maine uses the 2021 IECC. If your window replacement job pulls a permit, the installed product has to meet those efficiency requirements. Make sure your contractor is spec'ing to code before materials get ordered.
Top markets in Maine
Prices vary a lot across Maine. Pick a city for local estimates.
Need a ZIP-specific estimate? Browse all Maine cities →
Other remodeling costs in Maine
Best time to hire in Maine
Contractor demand by month, averaged across Maine. Lower demand means shorter lead times and more negotiating room.
This month
Normal season
~4 week lead time
Best month to book
Dec
~3wk lead
Busiest month
Jun
~6wk lead
Frequently asked questions
How much does window replacement cost in Maine?
Around $18,285 for most jobs in Maine, though the range runs $14,628 to $21,942 depending on where you are. Portland and other bigger markets run on the higher end. For a number specific to your address, enter your ZIP above.
Do I need a permit for window replacement in Maine ?
Depends on your county and the scope of the job, but for most window replacement work in Maine, yes. Your contractor handles this, but make sure it's written into the contract. Skipping permits isn't worth it. It can create real problems with insurance claims and at resale.
When is the best time to hire a window replacement contractor in Maine?
Spring and early summer is when every contractor in Maine gets busy. If you can book in fall or early winter, you'll find shorter lead times and more choices. Exterior work has weather limits, but most of the year is workable. The ZIP-level pages have month-by-month demand data if you want to time it right.