- Postcode district
- BT52
- Survey
- Free, area covered by arrangement
- Typical lead time
- Typically 6–8 weeks from survey sign-off
- Guide price
- From £5,095 inc VAT
- Nearby
- Portstewart, Portrush, Ballymoney
- Building rules
- Northern Ireland
What slimline sliding doors offer homes in Coleraine
The right door depends on the opening, the room and the way you use the garden. Here is how slimline sliding doors tend to work out in practice:
Is the patio behind your Coleraine home level with the floor inside? If so, a flush threshold with an outside drainage channel can make the two read as one surface.
A Coleraine garden with a view worth framing suits a slim interlock, because the meeting line between panels stays narrow enough to look straight past.
- Triple glazing is available on many slimline systems, bringing typical whole-door U-values down to around 0.8–1.1 W/m²K without bulking up the visible frame.
- Multi-point locking is concealed within the slim interlock and frame, keeping hardware out of sight while still engaging several points when the door closes.
- Panels of up to around 2.5–3 m wide mean a wide opening needs fewer sections, and so fewer interlocks crossing the view.
Sunlight, glass and orientation in Coleraine
Sun angles matter for big glazed doors. Around Coleraine, midday sun reaches about 58° in summer and drops to about 11° in winter. That low winter sun is free heat through south-facing glass; high summer sun is easier to shade with a roof overhang, and solar-control glass helps where there is none.
Guide prices for slimline sliding doors in Coleraine
Use these guide prices to budget. They include VAT, fitting and taking away an old door of a similar size. Taller doors, triple glazing and dual colour add to the figure — the online tool shows how much.
| Overall width | Typical panels | Guide price (fitted, inc VAT) |
|---|---|---|
| 3.6 m | 2 panels | £7,795–£9,495 |
| 4.0 m | 3 panels | £8,395–£10,195 |
| 6.0 m | 4 panels | £11,395–£13,895 |
See every size on the slimline sliding doors page or try the guide price tool.
From survey to fitted door in Coleraine
A surveyor visits your Coleraine home to measure the structural opening, check levels and the lintel, and talk through glass and finish. Once you confirm the written specification, the door is made to measure — typically 6–8 weeks from survey sign-off — and fitting usually takes 1–2 days; allow 3–5 days of building work first if the opening is formed or widened. We also cover Portstewart (6 km north-west) and Portrush (7 km north). 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?
In Northern Ireland, the Building Regulations (Northern Ireland) apply through your district council's building control service, with energy guidance in Technical Booklet F1. Work in Northern Ireland is by arrangement, and we confirm the approval route for your property at survey.
Finishes and extras for slimline sliding doors
- Concealed frame. Recess the outer frame into the floor, reveals and ceiling so almost no aluminium shows from inside.
- Handles. Slim flush pulls or a compact lever at the interlock, in matching or contrasting finishes.
- Threshold detail. A low threshold for straight replacements, or a flush floor-to-terrace finish with a drainage channel on extensions.
Questions about slimline sliding doors in Coleraine
Can you match other doors and windows in my Coleraine home?
Usually, yes. Most aluminium and uPVC systems come in standard RAL colours and finishes, and we can quote dual colour where the inside and outside need to differ. Bring photos of existing frames to the survey.
How big can slimline sliding door panels be?
Slimline sliding door panels are typically up to about 2.5–3 m wide and up to around 3 m high, depending on the system and the weight of the glass. Our slimline range covers overall widths from about 1.8 m to 6 m in two to four panels. Bigger panels mean fewer interlocks, but they are heavy, so access for delivery and fitting is checked at survey.
How much do slimline sliding doors cost?
Slimline sliding doors start from a guide price of £5,095 for a 1.8 m two-panel door, fitted, inc VAT, at standard 2.1 m height. A 2.4 m door is a guide £5,995–£7,295, and a 4.8 m three-panel door is around £9,595. Concealed frames, triple glazing and flush thresholds add to the figure, and the final price is fixed in a written quote after survey.
How slim is a slimline sliding door?
A slimline sliding door typically has a central interlock of around 20–25 mm, the narrow vertical section where the two panels meet. Standard aluminium sliders are considerably wider at this point. With the outer frame recessed into the floor, walls and ceiling, the interlock can be almost the only visible aluminium. Exact figures vary by system and are confirmed in your quote.