- Postcode district
- SW4
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 6–8 weeks from survey sign-off
- Guide price
- From £6,595 inc VAT
- Nearby
- Brixton, Balham, Battersea
- Building rules
- England
External pocket sliding doors in Clapham: what to know
Before you settle on a door type, it helps to know what external pocket sliding doors do well and what to check before you order.
Solid brick, cavity block or timber frame: the way your Clapham wall is built decides how the pocket is formed, which is why the survey looks at it closely.
Want the whole width of your Clapham kitchen open to the garden but prefer the look of sliders to bifolds? A pocket gives you both, at the cost of more building work.
- When closed, a pocket door looks like a large-paned slider, with slim meeting stiles and plenty of glass instead of the many frames of a folding door.
- Insulating the pocket wall and sealing the panel edges limits heat loss through the cavity, helping the wall beside the door perform like the rest of the house.
- A lined and drained pocket carries rainwater running along the track out of the wall, protecting the structure as well as the rollers.
Daylight in Clapham and what it means for your glass
In Clapham the shortest day has roughly 7 h 50 min of daylight and the longest about 16 h 38 min. The noon sun sits near 15° above the horizon in winter and 62° in summer — so glass that faces south collects useful warmth from October to March, while a west-facing door may need solar control to stop it overheating in July.
Typical costs for external pocket sliding doors around Clapham
Pricing does not change because you are in Clapham: the ranges below include fitting, structural calculations and VAT. They include forming the opening and the pocket in the wall; Building Control fees are set by your council and are extra.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 2.4 m | 2 panels | £7,495–£9,195 |
| 4.8 m | 3 panels | £11,095–£13,595 |
| 6.0 m | 3 panels | £12,895–£15,795 |
See every size on the external pocket sliding doors page or try the guide price tool.
What happens when you order external pocket sliding doors in Clapham?
Surveys in the SW4 district are booked at a time that suits you. Once the opening is ready and measured, manufacture is typically 6–8 weeks from survey sign-off; on fitting day the frame is set level and sealed, and the panels are adjusted so they glide properly. Fitting usually takes 3–5 days of building work to form the opening and pocket, then 1–2 days to fit the door.
Do you need approval in Clapham?
A new or wider opening in England needs Building Control approval for the structural work as well as compliance for the door itself under Approved Documents L and K. Expect structural calculations, a steel beam and, where a party wall is involved, notices under the Party Wall etc. Act 1996.
Which options matter for external pocket sliding doors?
- Threshold. Low or flush thresholds, with the external drainage channel continuing past the pocket.
- Internal finish. Plastered, panelled or tiled finishes on the pocket wall, with the access panel set discreetly into it.
- Glass. Double or triple glazed safety glass, with laminated or solar-control units as needed.
Questions about external pocket sliding doors in Clapham
Do you fit external pocket sliding doors in Clapham?
Yes. We survey and fit external pocket sliding doors in Clapham and across Greater London, including nearby Brixton and Balham. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
How much wall do I need for an external pocket door?
An external pocket door needs a clear length of wall beside the opening at least as long as the panels that slide into it, plus a little for the frame. For a single 2 m panel that means just over 2 m of wall with no windows, radiators, sockets or pipes in it. A two-sided pocket splits the panels between both sides, so each side needs less length.
Does a pocket in the wall cause heat loss?
A pocket in the wall does not have to cause significant heat loss if it is insulated, lined and sealed as part of the design, and the door itself typically achieves whole-door U-values around 1.2–1.6 W/m²K double glazed. In England, a new door in an existing home with more than 60% glazing must achieve 1.4 W/m²K or better. Wales, Scotland and Northern Ireland have their own energy rules.
How much do external pocket sliding doors cost?
External pocket sliding doors start from a guide price of £6,595 for a 1.8 m single-panel door, fitted, inc VAT, at standard 2.1 m height, including forming the wall pocket. A 3 m two-panel door is a guide £8,395–£10,295, and a 6 m three-panel door is around £12,895. Wall construction, glass and finish affect the figure, which is fixed in a written quote after survey.