Large floor-to-ceiling sliding doors across County Antrim
Before you settle on a door type, it helps to know what large floor-to-ceiling sliding doors do well and what to check before you order.
Where the only access to the back of a County Antrim home is a side gate or the house itself, large glass panels may need lifting equipment, and the survey plans the route.
Your structural engineer for a County Antrim project should know the door system before designing the steel, because sliders need a beam that barely deflects over the full span.
- Fewer, bigger panels mean fewer vertical frames across a wide opening, giving a calmer, less broken view than a run of standard-sized doors.
- A flush threshold with an outside drainage channel lets a large opening work as a level route between the kitchen floor and the terrace.
- Solar-control coatings can be added to tall south or west facing panels, reducing summer heat gain while still letting in plenty of daylight.
Guide prices for large floor-to-ceiling sliding doors in County Antrim
These are guide prices for fitted doors, including VAT. They run from an entry-level system to a premium one at the same size; the survey confirms which suits your opening.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 2.4 m | 2 panels | £7,995–£9,795 |
| 4.0 m | 2 panels | £11,095–£13,495 |
| 6.0 m | 3 panels | £14,895–£18,095 |
| 8.0 m | 4 panels | £18,695–£22,795 |
Every size is on the large floor-to-ceiling sliding doors page.
Daylight and glass in County Antrim
In County Antrim the shortest day has roughly 7 h 12 min of daylight and the longest about 17 h 20 min. The noon sun sits near 12° above the horizon in winter and 59° 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.
Towns we cover in County Antrim
We survey and fit large floor-to-ceiling sliding doors in 11 towns across County Antrim, including the BT1, BT27, BT37, BT38, BT39, BT40 postcode districts.
Approvals 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.
Questions about large floor-to-ceiling sliding doors in County Antrim
Is the price different in County Antrim?
The door price is the same as anywhere else. Because County Antrim is covered by arrangement, any travel cost for delivery and fitting is shown in your quote before you order; the survey itself is free.
Do large sliding doors need a steel beam?
Large sliding doors usually need a steel beam or frame, because most are fitted into a new or widened structural opening. In England that is structural work needing a Building Regulations application and structural calculations, which are included in our guide price for forming the opening; in Scotland it needs a building warrant, and Wales and Northern Ireland have their own approval routes. The beam must be stiff enough not to deflect onto the door.
How much do large floor-to-ceiling sliding doors cost?
Large floor-to-ceiling sliding doors start from a guide price of £7,995 for a 2.4 m two-panel door with 2.7 m high panels, fitted, inc VAT. A 4.8 m three-panel door at that height is a guide £12,595–£15,395, and an 8 m four-panel door is around £18,695. Structural work is priced separately, and the final price is fixed in a written quote after survey.
How tall can a sliding door be?
A sliding door can typically be up to about 2.5–3 m tall on standard aluminium systems, and taller on some lift and slide and slimline systems, depending on panel width and glass weight. Our large door range is priced on 2.7 m high panels. Taller doors need heavier glass and stronger support above, so the maximum for your opening is confirmed at survey.

