- Postcode district
- CT1
- 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
- Whitstable, Herne Bay, Faversham
- Building rules
- England
What replacement sliding doors offer homes in Canterbury
The right door depends on the opening, the room and the way you use the garden. Here is how replacement sliding doors tend to work out in practice:
Selling a house in Canterbury in the next few years? Keep the competent person scheme certificate or Building Control notice for the new door with your property paperwork.
Before booking a survey for a Canterbury flat, check your lease or title deeds and speak to the managing agent, factor or other owners, because doors in flats may need consent that houses do not.
- Removal and disposal of your old patio door is included in our guide prices, so there is no separate skip or tip run to organise.
- A thermally broken frame with modern double glazing must achieve 1.4 W/m²K or better in England for a door in an existing home with more than 60% glazing, which is far better than most old sliders.
- 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.
Sunlight, glass and orientation in Canterbury
Sun angles matter for big glazed doors. Around Canterbury, midday sun reaches about 62° in summer and drops to about 15° in winter. That low winter sun is free heat through south-facing glass; high summer sun is easier to shade with a roof overhang, and solar-control glass helps where there is none.
What should you budget for replacement sliding doors in Canterbury?
These are guide prices for fitted doors at a standard height, including VAT. They run from an entry-level system to a premium one at the same size; the survey confirms which suits your opening.
| 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 |
| 6.0 m | 4 panels | £8,295–£10,095 |
See every size on the replacement sliding doors page or try the guide price tool.
Timescales for replacement sliding doors in Canterbury
A surveyor visits your Canterbury 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 Whitstable (10 km north-west) and Herne Bay (11 km north).
Rules for replacement sliding doors 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.
Choosing the specification
- Aluminium replacement. A thermally broken aluminium slider with slim frames and a durable powder-coat finish.
- Lower threshold. A reduced-height sill where floor and outside levels allow, with suitable drainage.
- uPVC replacement. A cost-conscious choice for a straightforward swap, available in white and foiled colours.
Questions about replacement sliding doors in Canterbury
Is the price different in Canterbury?
No. Guide prices for replacement sliding doors are the same across mainland Britain, including Canterbury. The fitted price depends on size, system, glass and finish, and any structural work, all fixed in your written quote after survey.
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.
Do I need planning permission to replace a sliding door?
Replacing doors on a house is usually permitted development, so no planning application is needed, as long as the new doors are similar in appearance to the existing ones. Flats, listed buildings and properties covered by an Article 4 direction may need consent. Our planning guide explains more.
Do I need building regulations approval to replace a patio door?
In England a replacement door is a controlled fitting, so it must meet the Building Regulations for energy and safety glazing. You do not apply in advance; instead the work is self-certified by a competent person scheme installer or notified to Building Control, which we arrange. In Scotland like-for-like replacement in a house usually needs no building warrant but must still meet the building standards.