Cost & Value

Replacement window cost estimator for Long Island homes

Updated August 2026 · 2 min read · EcoView of Long Island

Ballpark your project before you call, a simple way to estimate window replacement cost by home size and window count.

Quick answer

To estimate window replacement cost, multiply your number of windows by an installed average of about $700-$1,200 each for standard styles. A typical 3-bedroom Long Island home with 12 windows lands near $9,000-$14,000, before factory-direct savings and financing.

Estimate by window count

Count the windows you want replaced, then multiply by a per-window average. Standard double-hung and slider windows sit at the lower end; larger or specialty units raise the average.

Estimate by home size

If you are not sure of your count, these rules of thumb help:

  • Condo / small ranch: 6-9 windows
  • Average 3-bedroom home: 10-14 windows
  • Larger colonial: 15-24 windows

Turn an estimate into a real quote

An estimator gets you in the ballpark, but your real number depends on your exact openings, glass package and installation type. EcoView measures every opening and gives you an itemized, factory-direct quote, no pressure.

WindowsStandard stylesWith specialty units
8 windows$5,600 - $9,600+ $2,000-$6,000
12 windows$8,400 - $14,400+ $2,000-$6,000
18 windows$12,600 - $21,600+ $3,000-$9,000

Estimates use a $700-$1,200 installed per-window average for planning. Factory-direct pricing and financing are applied at quote.

Get an honest quote for your Long Island home

Factory-direct pricing, no pressure, most consultations booked within 48 hours.

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Frequently asked

Is an online estimate accurate?

It is a planning range only. Actual cost depends on your openings, glass and install type, which is why we measure in person before quoting.

Do you offer financing on the total?

Yes, 0% options and financing from $78/mo make a full-home project manageable.

Ready when you are

Get your free, no-pressure in-home consultation

See factory-direct windows, doors & siding up close, and get an honest, itemized quote for your Long Island home. From $78/mo with 0% financing available.

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