Window Replacement Cost Calculator
Estimate window replacement project cost, opening area, trim length and per-window average using editable unit, installation, disposal and trim rates.
Default project preview
$8,685.60
Window units
$4,000.00
Installation labor
$2,000.00
Removal and disposal
$600.00
Interior trim allowance
$1,296.00
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Subtotal = window units + installation + disposal + trim length × trim rate. The project contingency is then added to the subtotal.
FAQ
Window Replacement Cost Calculator questions
Does this include exterior trim?+
No. The trim entry is a simple interior perimeter allowance; add exterior cladding or trim work separately.
Why include contingency?+
Existing openings may reveal rot, flashing problems or repair work after removal.
Does window size change unit price?+
Often yes. Enter the actual supplier price for the selected size and specification.