- Postcode district
- BT52
- Survey
- Free, area covered by arrangement
- Typical lead time
- Typically 4–6 weeks for aluminium, 6–8 weeks for slimline or lift and slide corners, from survey sign-off
- Guide price
- From £8,695 inc VAT
- Nearby
- Portstewart, Portrush, Ballymoney
- Building rules
- Northern Ireland
Is a corner sliding door a good fit for your home in Coleraine?
Before you settle on a door type, it helps to know what corner sliding doors do well and what to check before you order.
Which way does your Coleraine garden face? A corner catching south and west sun gains warmth in winter but can overheat in summer, so solar-control glass is worth considering.
A Coleraine 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.
- When closed, the two corner panels interlock and lock together, so the glass corner stays weathertight and secure without a visible column.
- 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.
- Because panels slide rather than fold, the corner can be opened on one side only, keeping the other side closed as a wind screen on cooler days.
Light and sun in Coleraine
In Coleraine the shortest day has roughly 7 h 08 min of daylight and the longest about 17 h 24 min. The noon sun sits near 11° above the horizon in winter and 58° 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.
Guide prices for corner sliding doors in Coleraine
Pricing does not change because you are in Coleraine: 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) |
|---|---|---|
| 4.0 m | 4 panels | £10,295–£12,495 |
| 4.8 m | 4 panels | £11,495–£13,995 |
| 8.0 m | 6 panels | £16,495–£20,095 |
See every size on the corner sliding doors page or try the guide price tool.
From survey to fitted door in Coleraine
Here is the usual sequence in Coleraine: guide price, free survey, written quote, any building work, then manufacture (typically 4–6 weeks for aluminium, 6–8 weeks for slimline or lift and slide corners, from survey sign-off). Fitting typically takes 1–2 days for the door, after 3–5 days of structural building work. Nearby, we also survey in Portstewart, Portrush and Ballymoney. Coleraine 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 you need approval in Coleraine?
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.
Options to consider for your corner sliding door
- Roof junction. Head details coordinated with flat roofs, roof lanterns or pitched roofs so steel, frame and roof meet neatly.
- Colours. Single or dual colour powder coating, so the outside can match the extension cladding or render.
- Threshold. Standard, low or flush thresholds, with drainage detailed along both elevations.
Questions about corner sliding doors in Coleraine
How soon can you survey in Coleraine?
Survey dates in the BT52 district are arranged individually when we reply to your enquiry. After you approve the written quote, manufacture is typically 4–6 weeks for aluminium, 6–8 weeks for slimline or lift and slide corners, from survey sign-off.
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 much do corner sliding doors cost?
Corner sliding doors start from a guide price of £8,695 for 3 m of combined width across both walls, fitted, inc VAT, at standard 2.1 m height. A 4.8 m combined corner is a guide £11,495–£13,995, and 8 m combined is around £16,495. Structural steel for the post-free corner is priced separately, and the final price is fixed in a written quote after survey.
Is the open corner a weak point for security?
The corner of a corner sliding door is not a weak point when the system is properly specified, because the two meeting panels interlock and lock together, typically with multi-point hardware at the corner as well as on the sliding edges. Laminated glass adds resistance to breaking through. Corner systems are available tested to PAS 24, and the locking specification is confirmed in your quote.