Doors
Sliding Doors
Large glass panels sliding on a track. The best view when closed, and the most architectural option.
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What it is, in plain English
Sliding doors prioritise the view. With slim interlocks and big panes, a two- or three-panel slider gives you far more glass and far less frame than a bifold.
They do not open the full aperture — one panel always sits behind another — but for most homes the year-round view matters more than the summer opening.
Best for
- Maximum glass
- Modern appearance
- Premium finish
Specification
The detail that changes the price
- Materials
- Thermally broken aluminium, occasionally slim steel-look or timber-aluminium composites.
- Energy efficiency
- Good thermal performance with large sealed units; check the whole-door U-value including the frame.
- Security
- Anti-lift blocks, multi-point locking and laminated glass are the key specifications.
- Colours & finishes
- Any RAL powder coat with dual colour options.
- Hardware
- Flush or low thresholds, concealed or minimal handles, and optional motorised operation on large panels.
- Glass
- Very large panes; consider solar control on south and west elevations.
- Maintenance
- Keep the track clean; heavier panels benefit from occasional roller adjustment.
- Typical applications
- Contemporary extensions, garden-facing living spaces and openings from 2m to 6m plus.
Honest assessment
Strengths and compromises
What it does well
- The slimmest sightlines and the biggest glass
- Panels sit within the opening, taking no side space
- Excellent when closed in winter
Where it compromises
- Never opens more than about half the aperture
- Large panels are heavy and expensive
Next step
Get a considered quotation, not a sales visit.
Tell us about the property and a specialist reviews your requirement by hand.