- Postcode district
- BN43
- 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
- Worthing, Brighton, Burgess Hill
- Building rules
- England
Why choose external pocket sliding doors in Shoreham-by-Sea?
The right door depends on the opening, the room and the way you use the garden. Here is how external pocket sliding doors tend to work out in practice:
If the only wall beside your Shoreham-by-Sea opening is shared with a neighbour, check the pocket design and any steel bearing on it early, as the Party Wall etc. Act 1996 (England and Wales) may apply.
For a Shoreham-by-Sea extension still at the drawing stage, planning the pocket wall now is far simpler than rebuilding a finished wall later.
- Open panels are hidden inside the wall rather than stacked in view, keeping the opening clean-lined compared with a bifold stack at one side.
- Pockets can be formed on one side or both, so a wide opening can part in the middle with panels sliding away in each direction.
- 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.
How much sun will a door in Shoreham-by-Sea get?
In Shoreham-by-Sea the shortest day has roughly 7 h 56 min of daylight and the longest about 16 h 31 min. The noon sun sits near 16° above the horizon in winter and 63° 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.
What should you budget for external pocket sliding doors in Shoreham-by-Sea?
Pricing does not change because you are in Shoreham-by-Sea: 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) |
|---|---|---|
| 3.0 m | 2 panels | £8,395–£10,295 |
| 3.6 m | 2 panels | £9,295–£11,395 |
| 4.8 m | 3 panels | £11,095–£13,595 |
See every size on the external pocket sliding doors page or try the guide price tool.
Survey, manufacture and fitting around Shoreham-by-Sea
A surveyor visits your Shoreham-by-Sea home to check the wall, the structure above and the floor levels, and talks through glass and finish. Any building work is planned to the engineer's design, the door is made to the finished opening sizes — typically 6–8 weeks from survey sign-off — and fitting usually takes 3–5 days of building work to form the opening and pocket, then 1–2 days to fit the door.
Rules for external pocket sliding doors in England
In England, forming or widening an opening is structural work that needs a Building Regulations application, structural calculations and usually a steel beam on padstones. The new door is also a controlled fitting (U-value 1.4 W/m²K or better if more than 60% glazed). If steelwork bears on a party wall, the Party Wall etc. Act 1996 may apply.
Options to consider for your external pocket sliding door
- Threshold. Low or flush thresholds, with the external drainage channel continuing past the pocket.
- Glass. Double or triple glazed safety glass, with laminated or solar-control units as needed.
- Internal finish. Plastered, panelled or tiled finishes on the pocket wall, with the access panel set discreetly into it.
Questions about external pocket sliding doors in Shoreham-by-Sea
Do I need building approval for external pocket sliding doors in Shoreham-by-Sea?
In England a replacement door is a controlled fitting, so compliance is arranged through a competent person scheme installer or Building Control; new openings need a Building Regulations application. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
Are external pocket doors secure?
External pocket doors are secure when the panels lock to the frame with multi-point hardware, the glass is laminated, and the pocket is closed off so the panels cannot be reached from outside. Once shut, the front edge of the panel locks into the frame just as on a standard slider. Systems are available tested to PAS 24, and the locking specification is set out in your quote.
How wide can an external pocket sliding door be?
An external pocket sliding door in our range typically gives a clear opening of about 1.8 m to 6 m, using one panel at the narrow end and two or three panels on wider doors. Wider openings usually use pockets on both sides, or a multi-track pocket so the panels stack inside the wall. Sizes are confirmed after survey and the engineer's design.
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.

