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How much does window replacement cost?
The short answer
Window replacement typically costs $300 to $1,200 per window installed for standard sizes, with vinyl at the low end, fiberglass and wood higher, and large or specialty shapes above the range. A whole house of 12 to 15 windows commonly runs $6,000 to $18,000. Insert replacements, keeping the existing frame, cost less than full-frame work when the frame is sound.
Window quotes frighten people because the per-window range is wide and the sales process is theatrical. Strip it down: you are buying a unit, its installation method, and the crew. The unit's brand matters less than correct sizing, flashing, and insulation around it.
Energy savings alone rarely pay for new windows quickly. Comfort, noise, operation, and condensation control are the honest reasons, with savings as a supporting benefit.
Cost per window, installed
| Material | Typical per window |
|---|---|
| Vinyl | $300 to $800 |
| Fiberglass | $600 to $1,300 |
| Wood or wood-clad | $800 to $1,800 |
| Large picture, bay, or custom shapes | $1,200 to $3,500 and up |
Full-frame replacement, tearing out to the studs, adds roughly 25 to 50 percent over insert replacement and is the right call when frames are rotted or the opening itself is the problem.
Insert versus full frame
- Choose inserts when frames are square, dry, and solid: faster, cheaper, less trim damage
- Choose full frame when there is rot, water history, or you are changing size or style
- Either way, the new unit should be flashed and sealed to the water barrier, not just caulked at the face
The energy reality check
Replacing clear single panes with modern low-E double panes can cut window-related heat loss substantially, but windows are only part of a home's envelope. Typical whole-bill savings land in the 5 to 15 percent range. Air sealing and attic insulation usually pay back faster, and pair well with a phased window plan.
Questions homeowners ask
How many windows should I replace at once?
All of them gets the best per-unit price. If budget forces phases, do the worst elevations first: north and west weather, and any failed seals.
What is a failed seal?
Fog or moisture between the panes that does not wipe away. The insulating gas is gone. The glass unit or the window needs replacement.
Do new windows add resale value?
They remove an objection more than they add a premium. Buyers notice drafty, fogged windows instantly, and price the fix into their offers.