Secure sliding doors (PAS 24) across West Sussex
A few practical points decide whether secure sliding doors suit a particular room and opening:
Replacing an old slider in West Sussex that has its glass beads on the outside? That is a weakness a modern internally glazed door removes.
Leaving a West Sussex house empty during the working day? A key-lockable handle stops anyone turning it from inside through broken glass.
- A doorset tested to PAS 24 has resisted a defined set of timed attacks using hand tools, giving an objective benchmark rather than a claim based on the look of the hardware.
- Internally glazed or secured beads mean the glass cannot be removed from the outside, closing off a route that some older doors left open.
- A multipoint lock throws several hooks or bolts into the frame when the handle is locked, spreading the load so the panel cannot be forced at a single point.
Guide prices for secure sliding doors in West Sussex
Guide prices are the same across West Sussex: the fitted price depends on the size, system and specification, not your postcode. These figures are for a standard 2.1 m high door, fitted, including VAT and removal of an old door of similar size.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £3,295–£4,095 |
| 1.8 m | 2 panels | £3,695–£4,495 |
| 3.0 m | 2 panels | £4,995–£6,095 |
| 3.6 m | 3 panels | £5,595–£6,895 |
Every size is on the secure sliding doors page.
Daylight and glass in West Sussex
At the latitude of West Sussex, the midday sun climbs to about 63° in late June but only about 16° in late December, when daylight lasts around 7 h 55 min against 16 h 32 min in midsummer. A south-facing secure sliding door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
Where we fit in West Sussex
We cover Crawley, Worthing, Bognor Regis, Littlehampton, Horsham, Haywards Heath and the rest of West Sussex.
Approvals 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.
Questions about secure sliding doors in West Sussex
Do you fit secure sliding doors in West Sussex?
Yes. We survey and fit secure sliding doors in West Sussex and across West Sussex, including Crawley and Worthing. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
Does Approved Document Q apply to my replacement door?
No, Approved Document Q sets security requirements for doors and windows in new dwellings in England and does not apply when you replace a door in an existing home. Choosing a door tested to PAS 24 is still a sensible benchmark for a replacement, because it gives you a recognised standard rather than relying on how the hardware looks.
How do anti-lift devices work on a sliding door?
Anti-lift devices are blocks or bolts fitted in the head of the frame or on the sliding panel that fill the gap above the panel when the door is closed. Without them, some older sliding panels could be lifted up and out of the bottom track. With them, the panel cannot be raised far enough to clear the track.
What is Secured by Design?
Secured by Design is a police-backed initiative that sets security standards for homes and products, and its requirements for doors build on PAS 24. Products and developments can gain recognition under the scheme. We are not a Secured by Design member company; if a project specifies it, tell us at the start so we can check what the specification requires.