- Postcode district
- ME15
- 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
- Rochester, Gillingham, Strood
- Building rules
- England
Are replacement sliding doors right for your Maidstone home?
Here is what to weigh up if you are considering replacement sliding doors for a home in Maidstone:
Considering a wider door for your Maidstone home while you are replacing it? Weigh up the extra cost of structural work against the gain in glass before deciding.
If the existing opening in your Maidstone home is sound and a sensible size, simply replacing the door gives the biggest improvement for the least disruption.
- Slimmer modern frames often give a larger area of glass within the same opening, letting more daylight into the room than the old door did.
- Multipoint locks, anti-lift devices and internally beaded glass close the security gaps that older patio doors commonly have, such as panels that can be lifted out.
- Because the opening stays the same size, a straight replacement avoids structural work, steel beams and a Building Regulations structural application.
How much sun will a door in Maidstone get?
At the latitude of Maidstone, the midday sun climbs to about 62° in late June but only about 15° in late December, when daylight lasts around 7 h 52 min against 16 h 36 min in midsummer. A south-facing replacement sliding door lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
How much do replacement sliding doors cost in Maidstone?
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 Maidstone home has been measured.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 2.1 m | 2 panels | £3,995–£4,895 |
| 4.0 m | 3 panels | £6,095–£7,395 |
| 4.8 m | 4 panels | £6,995–£8,495 |
See every size on the replacement sliding doors page or try the guide price tool.
Survey, manufacture and fitting around Maidstone
A surveyor visits your Maidstone home to measure the structural opening, check levels and the lintel, and talk through glass and finish. Once you confirm the written specification, the door is made to measure — typically 4–6 weeks for aluminium and 2–4 weeks for uPVC after survey sign-off — and fitting usually takes 1 day for a straight two-panel swap; 1–2 days for larger doors. We also cover Rochester (13 km north) and Gillingham (14 km north).
Do you need approval in Maidstone?
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.
Which options matter for replacement sliding doors?
- uPVC replacement. A cost-conscious choice for a straightforward swap, available in white and foiled colours.
- Lower threshold. A reduced-height sill where floor and outside levels allow, with suitable drainage.
- Aluminium replacement. A thermally broken aluminium slider with slim frames and a durable powder-coat finish.
Questions about replacement sliding doors in Maidstone
How soon can you survey in Maidstone?
Surveys in the ME15 district 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 for aluminium and 2–4 weeks for uPVC after survey sign-off.
What if there is no proper lintel above my old door?
Occasionally an old door frame turns out to be carrying some load because the support above the opening is inadequate or missing. We check the head of the opening at survey and again when the old frame comes out. If extra support is needed, we explain why, what it involves and what it costs before any further work goes ahead.
Is the survey free for a replacement door?
Yes, the survey for a replacement sliding door is free. We measure the opening, check its condition and the support above it, look at floor and outside levels, and talk through frame, glass and colour options. You then receive a written quote with the fixed price, and nothing is ordered until you confirm the surveyed specification in writing.
What happens to my old patio door?
We remove your old patio door and take it away for disposal as part of the job, and that is included in our guide prices, so there is nothing for you to arrange. If you would rather keep the old door, for example for a shed or greenhouse project, tell us before the fitting day and we will leave it safely on site.

