Replacing Windows in Stages: How to Plan the Work

What it costs per window

A vinyl double-hung window with insert installation runs about $250–$950 (product $150–$650 plus labor $100–$300). Ten windows run about $2,500–$9,500. See the cost to replace 10 windows and try the budget estimator.

How to prioritize

1. Safety first: broken glass, windows that will not lock, and bedroom windows that will not open for emergency exit.
2. Water damage: windows leaking or with soft, rotted frames (leaking around the frame).
3. Worst performers: single-pane windows, failed seals or very drafty windows (drafty windows).
4. By wall: the side facing prevailing winds or strong sun often matters most for comfort.
5. By visibility: the front of the house as one phase keeps the street view consistent.

Keep the house consistent

• Pick one manufacturer, product line, color and grid style, and write it down.
• Ask whether the product line is likely to stay available, and whether the installer can match it later.
• Replace all the windows on one side of the house in the same phase.
• Keep the same glass package so windows look the same from outside.

Avoid paying more per window

• Fewer, larger phases usually cost less per window than many small ones; each visit carries setup and travel.
• Ask for a whole-house quote with per-window pricing, and ask whether that pricing can be honored for later phases.
• Check whether each phase needs its own permit ($50–$300).
• If siding is planned, coordinate windows with it so flashing is done once (order of projects).