- Postcode district
- SO23
- 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
- Eastleigh, Romsey, Southampton
- Building rules
- England
Corner sliding doors in Winchester: what to know
Before you settle on a door type, it helps to know what corner sliding doors do well and what to check before you order.
If you are planning a wraparound extension in Winchester, designing corner sliding doors in from the start lets the engineer size the corner steelwork alongside the roof.
Where steel for a Winchester 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.
- When closed, the two corner panels interlock and lock together, so the glass corner stays weathertight and secure without a visible column.
- Because panels slide rather than fold, the corner can be opened on one side only, keeping the other side closed as a wind screen on cooler days.
- Daylight reaches the room from two directions, which keeps a deep extension brighter through the day as the sun moves round the house.
Sunlight, glass and orientation in Winchester
Sun angles matter for big glazed doors. Around Winchester, 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.
Typical costs for corner sliding doors around Winchester
These figures are for the door supplied and fitted, with the engineer's 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. Your price is fixed in a written quote after survey.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 3.6 m | 4 panels | £9,595–£11,795 |
| 4.0 m | 4 panels | £10,295–£12,495 |
| 6.0 m | 6 panels | £13,395–£16,295 |
See every size on the corner sliding doors page or try the guide price tool.
Survey, manufacture and fitting around Winchester
Here is the usual sequence in Winchester: guide price, free survey, written quote, any building work, then manufacture (typically 4–6 weeks for aluminium, 6–8 weeks for slimline or lift and slide corners, from survey sign-off). Fitting typically takes 1–2 days for the door, after 3–5 days of structural building work. Nearby, we also survey in Eastleigh, Romsey and Southampton.
Rules for corner sliding doors in England
In England, forming or widening an opening is structural work that needs a Building Regulations application, structural calculations and usually a steel beam on padstones. The new door is also a controlled fitting (U-value 1.4 W/m²K or better if more than 60% glazed). If steelwork bears on a party wall, the Party Wall etc. Act 1996 may apply.
Choosing the specification
- 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.
- Panel layout. Two panels per side for smaller corners or three per side for wider ones, with fixed panels at the far ends.
Questions about corner sliding doors in Winchester
Do you fit corner sliding doors in Winchester?
Yes. We survey and fit corner sliding doors in Winchester and across Hampshire, including nearby Eastleigh and Romsey. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
Do corner sliding doors need a steel beam?
Corner sliding doors almost always need engineered structural support, because removing the corner post takes away the support for the wall or roof above. A structural engineer designs a cantilevered beam or steel frame; the calculations are included in our guide prices and the steelwork is priced after survey. In England this needs a Building Regulations application and in Scotland a building warrant; Wales and Northern Ireland have their own building control rules.
How do you maintain a corner sliding door?
Maintaining a corner sliding door is much like any aluminium slider, with extra attention to the corner: keep both tracks and the corner drainage clear, wipe the corner seals, and check the meeting panels still lock smoothly. Rollers can be adjusted if a panel drops. Because a new extension can settle slightly in its first year, the corner panels may need a small adjustment after that.
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.