Window replacement costs in San Jose
Here’s the ballpark for common window replacement jobs around San Jose, CA. Want one for your own project? A photo is all it takes.
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What it usually costs
- Vinyl windows$386 – $1,656 per window
- Fiberglass windows$442 – $2,208 per window
- Wood windows$662 – $2,429 per window
- Aluminum windows$221 – $1,104 per window
A ballpark, not a quote. All of these are national averages adjusted for San Jose prices, so your job could land outside them.
Window replacement in San Jose
Ask three installers around San Jose about your windows and you may hear three words that sound alike but mean different jobs. Gilroy's building division, at the south end of the county, defines them. A retrofit window goes inside the existing frame, so the wall finish inside and out isn't touched. A replacement window comes out frame and all, which means removing part of the wall covering and then repairing the flashing and siding around it. A new window goes into a new opening with new framing. Swapping just the glass is a glazing repair, and Gilroy needs no permit for that.
On a stucco house, that wall covering is stucco, so a full-frame job comes with patching around every opening.
Gilroy's permit list asks for a floor plan that shows every new, replaced and retrofit window by type and size, with smoke detectors marked in bedrooms and halls. It also wants a note on the plan that the new windows meet the 2025 Energy Code's caps on heat loss and solar gain. San Jose, Santa Clara and Gilroy share one climate zone, Zone 4, so those caps don't change as you drive down the valley.
The housing here is mostly middle-aged. More than a third of the metro's houses were built in the 1960s and '70s.
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