- Postcode district
- BT64
- Survey
- Free, area covered by arrangement
- 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
- Lurgan, Portadown, Tandragee
- Building rules
- Northern Ireland
New and widened openings for sliding doors in Craigavon: what to know
Before you settle on a door type, it helps to know what sliding doors for new openings do well and what to check before you order.
Where a Craigavon 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 Craigavon kitchen window into a door to the garden? Check where drains, gullies and air bricks sit outside, because they can affect the new threshold.
- Widening a standard patio opening to a larger span can transform how a room connects to the garden, giving a wall of glass rather than a doorway.
- 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.
- Temporary propping holds up the wall above while the masonry is cut out, keeping floors, ceilings and the roof safely supported throughout the work.
Daylight in Craigavon and what it means for your glass
Daylight in Craigavon runs from about 7 h 17 min in December to 17 h 15 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.
How much do sliding doors for new openings cost in Craigavon?
Use these guide prices to budget for the whole job in Craigavon: the door, the steelwork, making good and the engineer's calculations, including VAT. Building Control or warrant fees are charged by the council on top.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 2.1 m | 2 panels | £7,495–£8,295 |
| 2.4 m | 2 panels | £7,895–£8,895 |
| 4.8 m | 4 panels | £11,495–£12,995 |
See every size on the sliding doors for new openings page or try the guide price tool.
How fitting works in Craigavon
Here is the usual sequence in Craigavon: 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 Lurgan, Portadown and Tandragee. Craigavon is in an area we cover by arrangement: the survey is still free, and survey dates, delivery and any travel cost for delivery and fitting are confirmed in your quote before you order.
Rules for sliding doors for new openings in Northern Ireland
Opening up a wall in Northern Ireland needs district council building control approval and structural calculations. We take on this work in Northern Ireland by arrangement.
Which options matter for sliding doors for new openings?
- Widening an existing door. Removing masonry each side of an old patio door to take a wider slider.
- Low threshold detail. Adjusting floor and outside levels during the building work to allow a lower sill.
- Temporary door or boarding. A secure, weathertight closure while the made-to-measure door is being manufactured.
Questions about sliding doors for new openings in Craigavon
Do I need building approval for sliding doors for new openings in Craigavon?
In Northern Ireland the Building Regulations (Northern Ireland) apply through district council building control; work there is by arrangement. We confirm the right route for your property at survey, so the paperwork is in place before fitting.
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.
Do I need building regulations to widen a door opening?
Yes, forming or widening an opening is structural work and needs a Building Regulations application in England, supported by structural calculations. Building Control inspects the work, typically including the steel and its bearings. In Scotland a building warrant is needed. Wales and Northern Ireland follow their own building regulations through local authority or district council building control.
How long does it take to form a new opening?
Forming or widening an opening typically involves 3–5 days of building work, including propping, cutting out, installing the steel and padstones, and making good. The sliding door is then made to the finished opening, which typically takes 4–6 weeks for aluminium, so a secure temporary closure is fitted in between. The door itself typically goes in within one to two days.

