From quote to fitting: the double glazing timeline
Once you have accepted a quote, how long until your new windows are actually in? It is one of the most common questions, and the honest answer is that it varies with the product, the time of year and how busy installers are locally. This guide sets out a realistic double glazing fitting timeline so you know roughly what to expect at each stage.
A typical timeline, stage by stage
Every project is different, but most follow a recognisable path from enquiry to fitting. The figures below are typical guides, not promises — your own lead times depend on your specification and local availability.
| Stage | Typically involves | Typical timing |
|---|---|---|
| Enquiry | Postcode and contact details | About a minute |
| Home survey | Measuring up and confirming the specification | Within a week or two |
| Final quote | Itemised, fixed figure after the survey | A few days after the survey |
| Manufacture | Made-to-measure units produced to order | A few weeks, product-dependent |
| Fitting day | Removal of old units and installation | Usually one to two days |
The survey stage is where your dates firm up — our guide to the survey and final quote explains what happens then.
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What affects your lead time
- Product choice — bespoke, timber or shaped units can take longer to make.
- Number of openings — a whole-house job takes more scheduling than one or two windows.
- Time of year — demand rises at certain points in the year.
- Access — scaffolding for upper floors can add a little time.
Installers have survey appointments in many areas this month, and quote turnaround is quickest early in the week.
On the day itself
Fitting day is usually smoother than people expect. The team protects your floors, removes the old units, installs the new ones, checks everything opens and seals correctly, and tidies up before leaving. For a fuller picture from the fitter’s side, read what to expect on installation day. Afterwards, you can see how other homeowners found the whole process in our customer reviews.
If you are still comparing before you book, you can check current double glazing deals, read the complete guide to window quotes, or get a free no-obligation quote.
Planning around your dates
A little planning keeps the timeline comfortable. Book your survey early, confirm your specification promptly so manufacture can begin, and be flexible on fitting dates where you can. Made-to-measure units take time to produce, so the sooner the details are locked in, the sooner your installation can be scheduled.
If your project is larger, expect a little more coordination — a whole-house job involves more units, more scheduling and sometimes scaffolding for upper floors. None of it need be stressful when you know what is coming, which is exactly what a clear timeline is for.
See how your quote adds up, then get your fitting date in the diary.
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