How long is a window quote valid?

Once you’ve read your quotes and understood what each one covers, timing becomes the next thing to weigh. A quote is a priced offer, and like any priced offer it’s tied to the costs of the day it was written. That’s why an expiry date appears near the bottom.

The typical validity window

Most window quotes are valid for 30 to 90 days, with 30 days being common. Some installers hold a price for longer, especially outside peak season. The document should state the period clearly — if it doesn’t, ask, and get the answer in writing.

Why quotes expire at all

• Material costs move. Glass, uPVC, aluminium and hardware prices shift, so a firm can’t hold an old figure indefinitely.
• Measurements can date. If your home changes — damp, movement, other building work — the original survey may need revisiting.
• Offers are time-limited. Any seasonal pricing is genuinely tied to a period, not an endless “deal”.

What to do before yours lapses

Give yourself enough runway to decide well. A sensible approach:

• Note every expiry date the moment quotes arrive, so none catches you out.
• Do your comparing early — see comparing three window quotes — rather than in the final few days.
• Ask for an extension if you need more time; many installers will honour the price a little longer if you ask politely.
• Request a refresh if a quote has lapsed. A new one may differ, but you’re not stuck.

Timing goes hand in hand with planning the wider project. If you’re mapping out when to order, this guide to getting your new windows planned and ordered is a useful companion, and our quote process overview keeps the whole sequence in view.