- Postcode district
- LD1
- Survey
- Free for new and replacement doors
- Typical lead time
- Typically 4–6 weeks for the door after the opening is measured; building work scheduled around approvals
- Guide price
- From £6,595 inc VAT
- Nearby
- Builth Wells, Kington, Knighton
- Building rules
- Wales
New and widened openings for sliding doors in Llandrindod Wells: what to know
The right door depends on the opening, the room and the way you use the garden. Here is how sliding doors for new openings tend to work out in practice:
Where a Llandrindod Wells house has a bay, chimney breast or upstairs window directly above the planned opening, the engineer will need to account for it in the steel design.
Turning a Llandrindod Wells kitchen window into a door to the garden? Check where drains, gullies and air bricks sit outside, because they can affect the new threshold.
- Structural calculations are included in the guide price, and the Building Regulations application is handled as part of the project, so you are not left coordinating engineers and inspectors.
- The door is measured from the finished opening rather than from drawings, so it fits the opening as built, not as it was intended to be built.
- A structural engineer sizes the steel beam and padstones for the actual loads above, so the opening is designed rather than guessed.
Sunlight, glass and orientation in Llandrindod Wells
In Llandrindod Wells the shortest day has roughly 7 h 42 min of daylight and the longest about 16 h 47 min. The noon sun sits near 14° above the horizon in winter and 61° in summer — so glass that faces south collects useful warmth from October to March, while a west-facing door may need solar control to stop it overheating in July.
How much do sliding doors for new openings cost in Llandrindod Wells?
Guide prices cover the door and forming the opening — steel beam, padstones, making good and structural calculations — fitted, including VAT. Building Control fees are set by your council and are extra.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.8 m | 2 panels | £6,995–£7,795 |
| 2.4 m | 2 panels | £7,895–£8,895 |
| 3.6 m | 3 panels | £9,695–£10,895 |
See every size on the sliding doors for new openings page or try the guide price tool.
From survey to fitted door in Llandrindod Wells
Here is the usual sequence in Llandrindod Wells: guide price, free survey, written quote, any building work, then manufacture (typically 4–6 weeks for the door after the opening is measured; building work scheduled around approvals). Fitting typically takes 3–5 days of building work, then 1–2 days to fit the door. Nearby, we also survey in Builth Wells, Kington and Knighton.
Rules for sliding doors for new openings in Wales
In Wales, structural work to form or widen an opening needs Building Regulations approval and structural calculations, and the new door must meet the Welsh energy and safety glazing requirements. The Party Wall etc. Act 1996 may apply where steelwork bears on a party wall.
Finishes and extras for sliding doors for new openings
- Low threshold detail. Adjusting floor and outside levels during the building work to allow a lower sill.
- Concealed steel. Setting the beam so it sits above the ceiling line, giving a cleaner head detail inside.
- Steel beam with padstones. A beam sized by the engineer to carry the wall, floors and roof above.
Questions about sliding doors for new openings in Llandrindod Wells
Do I need building approval for sliding doors for new openings in Llandrindod Wells?
In Wales a replacement door must meet the Building Regulations as applied in Wales, arranged through a registered installer or Building Control. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
Do I need a steel beam for sliding doors?
A widened or new opening usually needs a steel beam or a suitable lintel to carry the wall and anything above it, and for wider openings a steel beam is the usual answer. A structural engineer chooses the size and bearing details based on the loads. The beam is placed on padstones at each end to spread its load into the masonry.
Does the Party Wall Act apply to my new opening?
The Party Wall etc. Act 1996 (England and Wales) may apply if the new steel beam bears on, or is cut into, a wall you share with a neighbour, as is common in semi-detached and terraced houses. If it applies, you must serve notice on the neighbour before the work starts. A rear wall entirely on your own property is less likely to be affected.
How much does it cost to widen an opening for sliding doors?
Our guide price for forming or widening an opening is £3,595 for 2.4 m and £4,495 for 4.8 m, covering steel, padstones, making good and structural calculations. The door is priced separately, and Building Control fees are set by your council. All figures are guide prices inc VAT, fixed in a written quote after we survey the wall and see what is above it.

