Corner sliding doors across Dorset
Before you settle on a door type, it helps to know what corner sliding doors do well and what to check before you order.
A Dorset garden that sits to the side as well as the rear of the house is where a post-free corner earns its place, opening the room towards both.
On any corner installation in Dorset, the survey records floor and patio levels along both walls, because a terrace that falls differently on each side changes the threshold detail.
- Low or flush thresholds can run around both elevations, giving one continuous level line from the floor inside to a terrace that wraps the corner.
- A corner of glass gives a much wider field of view than a single straight door, taking in more of the garden from a seat inside.
- Daylight reaches the room from two directions, which keeps a deep extension brighter through the day as the sun moves round the house.
Guide prices for corner sliding doors in Dorset
Pricing does not change because you are in Dorset: the ranges below include fitting, structural calculations and 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) |
|---|---|---|
| 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 |
| 8.0 m | 6 panels | £16,495–£20,095 |
Every size is on the corner sliding doors page.
Daylight and glass in Dorset
Sun angles matter for big glazed doors. Around Dorset, 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.
Towns we cover in Dorset
We survey and fit corner sliding doors in 12 towns across Dorset, including the BH15, BH19, BH2, BH20, BH21, BH22 postcode districts.
Approvals 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.
Questions about corner sliding doors in Dorset
Do you fit corner sliding doors in Dorset?
Yes. We survey and fit corner sliding doors in Dorset and across Dorset, including Bournemouth and Poole. 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.
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.