Are secure sliding doors right for homes in Merseyside?
These are the points a surveyor will go through with you when you choose secure sliding doors for a home in Merseyside:
For a new-build or conversion in Merseyside with a security condition attached, send us the specification before we quote so the right system is chosen from the start.
If your Merseyside home has a rear garden reached by a side gate or shared alley, the back door is the one to specify with PAS 24 testing and laminated glass.
- Anti-lift devices in the head of the frame stop a closed sliding panel being levered up and lifted off its track, which is a classic weakness of older sliders.
- 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.
- Laminated glass has a tough interlayer that holds the pane together when struck, so even a cracked panel resists an attempt to break through.
Guide prices for secure sliding doors in Merseyside
The table shows guide prices for common sizes, supplied and fitted, including VAT. Your exact price is fixed in a written quote once the opening in your home has been measured.
| 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 |
| 3.6 m | 3 panels | £5,595–£6,895 |
| 4.0 m | 3 panels | £6,095–£7,395 |
Every size is on the secure sliding doors page.
Daylight and glass in Merseyside
In Merseyside the shortest day has roughly 7 h 29 min of daylight and the longest about 17 h 01 min. The noon sun sits near 13° above the horizon in winter and 60° 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.
Where we fit in Merseyside
We cover Liverpool, Birkenhead, St Helens, Southport, Wallasey, Bootle and the rest of Merseyside.
Approvals in England
English Building Regulations treat a new or replacement external door in an existing home as a controlled fitting: it needs a U-value of 1.4 W/m²K or better (or Doorset Energy Rating band C) if more than 60% of it is glazed (Approved Document L), and safety glass in a critical location (Approved Document K). Compliance is arranged through a competent person scheme installer or a Building Control notification, so you get a certificate for your records.
Questions about secure sliding doors in Merseyside
How soon can you survey in Merseyside?
Surveys in Merseyside are booked at a time that suits you, and we offer survey dates when we reply to your enquiry. After you approve the written quote, manufacture is typically 4–6 weeks from survey sign-off, depending on the glass and hardware chosen.
What is PAS 24?
PAS 24 is the UK enhanced security test standard for doorsets, including sliding doors. A door tested to it has been subjected to timed manual attacks with hand tools, mechanical loading of the panels and locks, and tests on how the glass is held. It applies to the complete doorset as tested, not to individual handles or locks on their own.
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.