- Postcode district
- NE38
- 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
- Chester-le-Street, Houghton-le-Spring, Sunderland
- Building rules
- England
Corner sliding doors in Washington: what to know
The right door depends on the opening, the room and the way you use the garden. Here is how corner sliding doors tend to work out in practice:
Corner glazing changes how a Washington home looks from neighbouring gardens, so confirm the planning position for the extension with your designer or the local planning authority before ordering.
Which way does your Washington garden face? A corner catching south and west sun gains warmth in winter but can overheat in summer, so solar-control glass is worth considering.
- When closed, the two corner panels interlock and lock together, so the glass corner stays weathertight and secure without a visible column.
- Daylight reaches the room from two directions, which keeps a deep extension brighter through the day as the sun moves round the house.
- 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.
Planning glass for the light in Washington
Daylight in Washington runs from about 7 h 11 min in December to 17 h 21 min in June, with the noon sun at roughly 12° and 59° respectively. Use that to choose your glass: standard low-E double glazing for north and east elevations, and consider solar-control or triple glazing for sunny south and west walls.
Guide prices for corner sliding doors in Washington
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) |
|---|---|---|
| 3.0 m | 4 panels | £8,695–£10,595 |
| 4.8 m | 4 panels | £11,495–£13,995 |
| 6.0 m | 6 panels | £13,395–£16,295 |
See every size on the corner sliding doors page or try the guide price tool.
Timescales for corner sliding doors in Washington
Surveys in the NE38 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.
Do you need approval in Washington?
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.
Options to consider for your corner sliding door
- Threshold. Standard, low or flush thresholds, with drainage detailed along both elevations.
- 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.
Questions about corner sliding doors in Washington
Do you fit corner sliding doors in Washington?
Yes. We survey and fit corner sliding doors in Washington and across Tyne and Wear, including nearby Chester-le-Street and Houghton-le-Spring. Start with a guide price online or call us, and we will arrange a free survey for a new or replacement door.
Can I add a corner sliding door to an existing house?
A corner sliding door can be added to an existing house, but it is a structural project rather than a door swap: the corner of the building has to be rebuilt with engineered steel to carry the load where the post or wall used to be. It is usually done as part of an extension or rear remodel, and a survey plus an engineer's assessment confirm what the structure above needs.
Do corner sliding doors lose more heat?
Corner sliding doors lose heat in proportion to their glazed area, so a large glass corner loses more than a solid wall would, but thermally broken systems keep typical whole-door U-values around 1.2–1.6 W/m²K double glazed. In England, a new door in an existing home with more than 60% glazing must achieve 1.4 W/m²K or better, and triple glazing is available. Wales, Scotland and Northern Ireland apply their own energy rules.
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.

