- Postcode district
- BT71
- 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
- Coalisland, Cookstown, Armagh
- Building rules
- Northern Ireland
New and widened openings for sliding doors in Dungannon: 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:
Thinking about a wider opening in Dungannon but unsure of the size? Mark it out on the wall inside and out with tape, then picture the furniture and the view before you decide.
Turning a Dungannon kitchen window into a door to the garden? Check where drains, gullies and air bricks sit outside, because they can affect the new threshold.
- 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.
- Temporary propping holds up the wall above while the masonry is cut out, keeping floors, ceilings and the roof safely supported throughout the work.
Planning glass for the light in Dungannon
At the latitude of Dungannon, the midday sun climbs to about 59° in late June but only about 12° in late December, when daylight lasts around 7 h 16 min against 17 h 15 min in midsummer. A south-facing sliding door for a new opening lets that low winter sun deep into the room; on a west or south elevation, solar-control glass keeps summer afternoons comfortable.
Typical costs for sliding doors for new openings around Dungannon
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 Dungannon 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 |
| 3.0 m | 2 panels | £8,795–£9,895 |
| 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 Dungannon
Nothing is ordered until you sign off the surveyed specification. The door is made from the finished opening sizes (typically 4–6 weeks for the door after the opening is measured; building work scheduled around approvals), and fitting usually takes 3–5 days of building work, then 1–2 days to fit the door. If you are in Coalisland or Cookstown, the same process and prices apply. Dungannon 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.
Choosing the specification
- 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 Dungannon
Do you fit sliding doors for new openings in Dungannon?
Yes, by arrangement. Dungannon 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.
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.
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.