How Long Are Double Glazing Quotes Valid?
Most quotes run for 30 to 90 days, and the validity period matters more than the headline price if your installation is months away. Here is how to hold a price.
Key takeaways
- Thirty days is the most common validity period; 60 to 90 is negotiable on larger jobs.
- An expired quote can be reissued at a higher price, especially after a materials increase.
- A fixed-price clause in the contract is the only reliable protection.
- Your 14-day cancellation right is separate from the quote’s validity period.
A double glazing quote is an offer, and like any offer it has a shelf life. That matters most in a market where frame and glass costs move with energy and commodity prices: an expired quote is not a price you can rely on.
Typical validity periods
| Situation | Typical validity |
|---|---|
| Standard domestic quote | 30 days |
| Larger whole-house quote | 60 – 90 days |
| Promotional quote | 7 – 14 days, often shorter |
| Quote pending survey | Until the survey is completed |
Very short validity periods are usually a pressure device rather than a commercial necessity. A firm that genuinely cannot hold a price for a month should be able to explain why in terms of materials contracts rather than “today’s offer”.
How to hold a price
- Ask for the validity period to be written on the quote.
- If your installation is more than two months away, ask for a fixed-price clause at the point of order.
- Check whether a deposit fixes the price or merely secures a slot.
- Ask explicitly whether the firm can pass on supplier increases before installation.
- Get the installation date in writing, since a late installation should not trigger a price change.
What happens if a quote expires?
Nothing dramatic. You simply need a new quote, which may carry a higher price. If the original figure was competitive, ask the installer to honour it or to explain precisely what has changed. Firms will often hold a price to keep a job in a quiet period.
Cancellation is different
The validity period governs the offer. Your right to cancel a contract agreed at home, normally 14 days under the Consumer Contracts Regulations, is separate and applies once you have signed. Do not confuse the two, and do not let a short validity period be presented as a reason you cannot take advice before signing.
The bottom line
Expect 30 days as standard and negotiate longer on bigger jobs. If your installation is months away, get a fixed price written into the contract rather than relying on an unexpired quote.
Frequently asked questions
Usually 30 days, with 60 to 90 days achievable on larger installations. The period should be stated on the quote itself.
Only if the contract allows it, for example through a price-review clause. Insist on a fixed price and read the terms before paying a deposit.
No. Ask for the price to be held in writing instead. A genuine offer can be held for a reasonable period without you committing on the day.
Only if the contract says so. In many contracts a deposit secures a date while the price remains subject to survey.
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