- Postcode district
- SE10
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off
- Guide price
- From £3,295 inc VAT
- Nearby
- Blackheath, Lewisham, Catford
- Building rules
- England
Is a replacement sliding door a good fit for your home in Greenwich?
The right door depends on the opening, the room and the way you use the garden. Here is how replacement sliding doors tend to work out in practice:
If your Greenwich home still has its original sliding patio door, look at the glass beads: if they are on the outside, a replacement will close off that weakness.
Considering a wider door for your Greenwich home while you are replacing it? Weigh up the extra cost of structural work against the gain in glass before deciding.
- Because the opening stays the same size, a straight replacement avoids structural work, steel beams and a Building Regulations structural application.
- A thermally broken frame with modern double glazing must achieve 1.4 W/m²K or better in England for a door in an existing home with more than 60% glazing, which is far better than most old sliders.
- Removal and disposal of your old patio door is included in our guide prices, so there is no separate skip or tip run to organise.
Sunlight, glass and orientation in Greenwich
Sun angles matter for big glazed doors. Around Greenwich, midday sun reaches about 62° in summer and drops to about 15° in winter. That low winter sun is free heat through south-facing glass; high summer sun is easier to shade with a roof overhang, and solar-control glass helps where there is none.
Typical costs for replacement sliding doors around Greenwich
Use these guide prices to budget. They include VAT, fitting and taking away an old door of a similar size. Taller doors, triple glazing and dual colour add to the figure — the online tool shows how much.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £3,295–£4,095 |
| 2.4 m | 2 panels | £4,295–£5,295 |
| 6.0 m | 4 panels | £8,295–£10,095 |
See every size on the replacement sliding doors page or try the guide price tool.
What happens when you order replacement sliding doors in Greenwich?
Here is the usual sequence in Greenwich: guide price, free survey, written quote, then manufacture (typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off). Fitting typically takes 1 day for a straight two-panel swap; 1–2 days for larger doors. Nearby, we also survey in Blackheath, Lewisham and Catford.
Rules for replacement sliding doors in England
In England, a replacement sliding door is a controlled fitting under the Building Regulations. In an existing home, a door with more than 60% glazing must reach a U-value of 1.4 W/m²K or better (or a Doorset Energy Rating of band C) under Approved Document L, and glass in doors must be safety glazing under Approved Document K. We arrange compliance through a competent person scheme installer or by notifying Building Control, and you receive the certificate.
Which options matter for replacement sliding doors?
- Aluminium replacement. A thermally broken aluminium slider with slim frames and a durable powder-coat finish.
- Upgraded glass. Triple, laminated, solar-control or obscure glass to suit the elevation.
- Lower threshold. A reduced-height sill where floor and outside levels allow, with suitable drainage.
Questions about replacement sliding doors in Greenwich
Do you fit replacement sliding doors in Greenwich?
Yes. We survey and fit replacement sliding doors in Greenwich and across Greater London, including nearby Blackheath and Lewisham. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
Will the new door have a lower threshold?
A lower threshold may be possible on a replacement, depending on the floor level inside, the height of the patio or ground outside and how the opening was built. Low thresholds are typically 15–25 mm. A flush threshold needs a drainage channel outside so rain cannot run in. We check levels at survey and tell you what is realistic.
How long does it take to replace a sliding patio door?
Replacing a two-panel sliding patio door typically takes one day, from removing the old door to sealing and trimming the new one. Larger doors, three- or four-panel sets and doors needing extra making good typically take one to two days. Manufacture comes first, typically 4–6 weeks for aluminium or 2–4 weeks for uPVC after you sign off the surveyed specification.
Do I need planning permission to replace a sliding door?
Replacing doors on a house is usually permitted development, so no planning application is needed, as long as the new doors are similar in appearance to the existing ones. Flats, listed buildings and properties covered by an Article 4 direction may need consent. Our planning guide explains more.