UK cost guide · Updated 30 Sep 2026
Sliding Patio Door Cost
Sliding door cost is driven mainly by opening width, frame specification, colour and whether the job is a straightforward replacement. For a standard uPVC sliding patio door, current fitted centres in the model run from about £1,520 to £1,680 across common widths.
Current fitted examples
These figures use the same pricing model as the main calculator. They are market benchmarks for quote checking, not binding installer quotations.
Replacement versus creating a new opening
These figures assume a door is being fitted into an existing suitable opening. Creating or widening an opening can add lintels, structural work, plastering and other building costs that are not part of a normal replacement-door benchmark.
If you are replacing an older patio unit like-for-like, the standard fitted comparison is much more useful.
What can move the sliding-door quote
- Opening width and number of sliding panels
- uPVC versus aluminium frame
- White versus coloured finish
- Threshold and hardware specification
- Access, removal and structural condition of the opening
What “fitted” means here: supply, standard replacement installation and ordinary 20% VAT are included. Structural alterations, scaffolding, difficult access and highly bespoke work can sit outside the standard estimate.
Related price guides
Use these pages to compare the nearest specifications before building your own estimate.
Questions people ask
Direct answers to the search questions behind this guide.
How much does a sliding patio door cost fitted?
A typical 2100 mm white uPVC sliding patio door currently centres around £1,600 fitted in the model.
Is this the same as a bifold-door price?
No. Bifold systems use different frame and hardware systems and are priced separately.
Does the sliding-door cost include VAT?
Yes. The examples include standard replacement fitting and ordinary 20% VAT.
Price the actual project.
Choose the product, rough or exact size, layout, glazing, colour and region. The personalised result is a one-off £2.99.
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