- Postcode district
- SG5
- 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
- Letchworth Garden City, Stevenage, Luton
- Building rules
- England
Why choose sliding doors for new openings in Hitchin?
A few practical points decide whether sliding doors for new openings suit a particular room and opening:
Turning a Hitchin kitchen window into a door to the garden? Check where drains, gullies and air bricks sit outside, because they can affect the new threshold.
If your Hitchin home is semi-detached or terraced and the new steel would sit on the shared wall, budget time for party wall notices before work starts.
- Making good the reveals and head after the steel goes in leaves a square, plumb opening, which is what a precision-made sliding door needs to run smoothly.
- 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.
- 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.
Planning glass for the light in Hitchin
Daylight in Hitchin runs from about 7 h 45 min in December to 16 h 43 min in June, with the noon sun at roughly 15° and 61° 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.
How much do sliding doors for new openings cost in Hitchin?
These figures combine an aluminium sliding door with the building work to form or widen the opening, including structural calculations and VAT. Your price is fixed in a written quote once the wall in your Hitchin home has been surveyed; council fees are extra.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 1.5 m | 2 panels | £6,595–£7,295 |
| 3.6 m | 3 panels | £9,695–£10,895 |
| 4.0 m | 3 panels | £10,295–£11,595 |
See every size on the sliding doors for new openings page or try the guide price tool.
From survey to fitted door in Hitchin
Here is the usual sequence in Hitchin: 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 Letchworth Garden City, Stevenage and Luton.
Do you need approval in Hitchin?
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
- Widening an existing door. Removing masonry each side of an old patio door to take a wider slider.
- Temporary door or boarding. A secure, weathertight closure while the made-to-measure door is being manufactured.
- 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 Hitchin
Is the price different in Hitchin?
No. Guide prices for sliding doors for new openings are the same across mainland Britain, including Hitchin. The fitted price depends on size, system, glass and finish, and any structural work, all fixed in your written quote after survey.
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.
Can you turn a window into a sliding door?
Yes, a window opening can usually be extended down to the floor and often widened to take a sliding door. The work involves removing the masonry below the window, forming a new threshold, and fitting a steel beam or lintel if the opening is widened. Drains, air bricks and floor levels outside need checking, and the work needs a Building Regulations application.
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.

