- Postcode district
- BN7
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 4–6 weeks for aluminium, 6–8 weeks for slimline or lift and slide corners, from survey sign-off
- Guide price
- From £8,695 inc VAT
- Nearby
- Peacehaven, Newhaven, Brighton
- Building rules
- England
Corner sliding doors in Lewes: what to know
Most homeowners choosing corner sliding doors want the same things: more light, a clear view and a door that is easy to live with.
Where steel for a Lewes corner extension would bear on a shared wall, the Party Wall etc. Act 1996 (England and Wales) may apply, so it is worth raising with neighbours early.
Corner glazing changes how a Lewes home looks from neighbouring gardens, so confirm the planning position for the extension with your designer or the local planning authority before ordering.
- With no post at the corner, sliding both sets of panels back opens the meeting point of two walls completely, so the room spills straight onto the patio.
- Daylight reaches the room from two directions, which keeps a deep extension brighter through the day as the sun moves round the house.
- When closed, the two corner panels interlock and lock together, so the glass corner stays weathertight and secure without a visible column.
Planning glass for the light in Lewes
Sun angles matter for big glazed doors. Around Lewes, midday sun reaches about 63° in summer and drops to about 16° 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.
Corner sliding doors prices in Lewes
Guide prices include the door, fitting and structural calculations, including VAT. The steelwork that supports the corner is designed by the engineer and priced after survey, because it depends on the building.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 4.0 m | 4 panels | £10,295–£12,495 |
| 4.8 m | 4 panels | £11,495–£13,995 |
| 8.0 m | 6 panels | £16,495–£20,095 |
See every size on the corner sliding doors page or try the guide price tool.
From survey to fitted door in Lewes
Surveys in the BN7 district are booked at a time that suits you. Once the opening is ready and measured, manufacture is typically 4–6 weeks for aluminium, 6–8 weeks for slimline or lift and slide corners, from survey sign-off; on fitting day the frame is set level and sealed, and the panels are adjusted so they glide properly. Fitting usually takes 1–2 days for the door, after 3–5 days of structural building work.
Rules for corner sliding doors in England
A new or wider opening in England needs Building Control approval for the structural work as well as compliance for the door itself under Approved Documents L and K. Expect structural calculations, a steel beam and, where a party wall is involved, notices under the Party Wall etc. Act 1996.
Finishes and extras for corner sliding doors
- Glass. Double or triple glazed safety glass, with solar-control coatings for corners facing south or west.
- Roof junction. Head details coordinated with flat roofs, roof lanterns or pitched roofs so steel, frame and roof meet neatly.
- Colours. Single or dual colour powder coating, so the outside can match the extension cladding or render.
Questions about corner sliding doors in Lewes
Do you fit corner sliding doors in Lewes?
Yes. We survey and fit corner sliding doors in Lewes and across East Sussex, including nearby Peacehaven and Newhaven. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
Is the open corner a weak point for security?
The corner of a corner sliding door is not a weak point when the system is properly specified, because the two meeting panels interlock and lock together, typically with multi-point hardware at the corner as well as on the sliding edges. Laminated glass adds resistance to breaking through. Corner systems are available tested to PAS 24, and the locking specification is confirmed in your quote.
How much do corner sliding doors cost?
Corner sliding doors start from a guide price of £8,695 for 3 m of combined width across both walls, fitted, inc VAT, at standard 2.1 m height. A 4.8 m combined corner is a guide £11,495–£13,995, and 8 m combined is around £16,495. Structural steel for the post-free corner is priced separately, and the final price is fixed in a written quote after survey.
How big can a corner sliding door be?
A corner sliding door in our range typically covers about 3 m to 8 m of combined width across both walls, usually four panels up to about 4.8 m and six panels above that. The two sides do not need to be equal. Panel height starts at the standard 2.1 m and can go taller depending on the system, which is confirmed at survey alongside the structural design.

