The terrace access designed for everyday life. The leaf glides along the frame without intruding on the room or the terrace — ideal where a hinged door would get in the way of the passage or the furniture. With a flat threshold, you step through with no step, pushchair or wheelchair included, summer and winter.
The benchmarks that matter for a terrace slider that is reliable day to day, fitted by our teams. Real substance, not marketing.
The flat threshold is crossed with no step: level comfort for a pushchair, a wheelchair or simply a tray in hand. It is the major advantage of the terrace slider over a hinged French door and its raised threshold.
The leaf glides in front of the fixed leaf: no swing clearance to plan for, neither inside nor out. You keep the furniture right up against the opening and move around freely, where a hinged door would forbid placing a table or a sofa.
Simple two-leaf slider for everyday dimensions; lift-and-slide for large widths and heavy leaves, which rise before gliding for a soft touch and perfect sealing once lowered again.
Multi-point hook lock, anti-lift rollers and optional laminated glazing: a modern slider resists the leaf being levered out, two weaknesses of the old models. The security of a real access door.
With a thermal break and double or triple glazing, a terrace slider reaches performance close to a fixed window. Brush seals and the insulated threshold limit air leaks at the rail.
A pass with the vacuum in the bottom rail once or twice a year and a clean of the rollers are enough to keep a smooth glide. No hinge to grease or leaf to adjust as on a classic French door.
* Indicative values for common-range sliders (PVC or aluminium) with a thermal break. Exact performance depends on the system, the glazing and the dimensions — confirmed at the site survey.
No solution is perfect for every access. Here, honestly, is where the terrace slider excels and where another type of joinery will suit better.
It is the obvious choice whenever you want a practical terrace access without sacrificing space or the passage. A few cases where it shines:
For coming and going several times a day to the garden without a hinged door getting in the way of the furniture or the passage. The slider keeps the room clear.
A flat step-free threshold for a pushchair, a wheelchair or older people: a safe and easy access that also prepares an adaptable home.
For a generous opening onto the terrace with large leaves, the lift-and-slide glides smoothly even on wide bays.
If you prefer to open the whole opening in one go, the French door with one or two hinged leaves remains relevant. And for a large glazed project geared towards light and design, take a look at the sliding wall.
The customer tripped every day over the raised threshold of an old French door and could not place any furniture in front of it because of the swinging leaf. We fitted a two-leaf PVC slider with a 20 mm flat threshold and a multi-point lock: level access, a living room finally clear and watertightness restored.
5.0/5 · 5verified reviews
« Nous avons fait appel à la société Wendows pour le renouvellement de nos châssis et nous sommes vraiment ravis du résultat ! Les travaux ont été réalisés dans les délais annoncés et la finition est impeccable. De plus, M. Aprile qui s'est occupé du devis, s'est toujours montré disponible pour répondre à toutes nos questions. Nous vous recommandons donc de faire appel à eux pour vos travaux ! »
« Nous avons fait appel à Wendows pour le remplacement de nos châssis et nous sommes très satisfait de notre choix. Qualité et suivi de chantier au top ! »
« Ik heb via WEndows een raam aangekocht van 2m x 2m. Mijn algemene ervaring is goed. Zeer goeie communicatie, altijs zeer snelle reactie bij een vraag of opmerking. Het installatie team werkte ook zeer efficient. Tevreden van het eindresultaat! Bedankt WEndows »
The terrace slider wins on walk-through comfort and the absence of intrusion. Compare it point by point with the French door and the sliding wall, then open the solution that suits you.
| Critère | Sliding patio doorVous êtes ici | French doorVoir la gamme → | Sliding wallVoir la gamme → |
|---|---|---|---|
| Indicative price | €€ — mid-range | The gentlest | €€€€ — large surfaces |
| Intrusion when opening | None | Swing of the leaf | None |
| Threshold / level access | Flat threshold | Often raised threshold | Flat threshold |
| Glazed surface | Generous | More modest | Maximum |
| Opening width | Half the bay | Full in one go | Large widths |
| Maintenance | Rail to clean | Hinges to adjust | Rail to clean |
| Ideal for | Everyday terrace access | Tight budget, full opening | Large bay, light & design |
The large glazed bay geared towards design and light: very large surfaces, possible pocket sliding, architectural lines of 3 to 6 metres.
Discover the sliding wall →The hinged solution, more economical, that opens the whole opening in one go. Ideal on everyday-sized accesses.
Compare with the French door →An overview of sliding systems: simple, lift-and-slide, thresholds and rails. To choose your mechanism well.
See the sliders →For large leaves and slim profiles, aluminium carries sliders that PVC cannot hold.
See aluminium →The glazing accounts for ~70% of the performance. Understand the Ug values, and the laminated glass that secures a large slider.
Choose your glazing →An overview of our window frames & joinery in Belgium: materials, glazing, fitting and grants on one page.
Back to the window guide →The price depends on the dimensions, the system (simple or lift-and-slide), the material and the glazing. Here are some benchmarks for a fitted terrace slider, flat threshold included.
See the detailed slider price list →* Indicative ranges per fitted sliding patio door, excluding specific configurations. A costed estimate is provided with your free quote.
It is above all a question of use and scale. The sliding patio door is the functional everyday access, in everyday dimensions. The sliding wall refers to the large architectural glazed surface (3 to 6 metres, pocket sliding possible), designed for light and design. The mechanism is a cousin, the intent differs.
Yes, with a flat threshold of about 20 mm you step through with no step, which suits pushchairs and wheelchairs. The insulated flat threshold stays watertight thanks to brush seals and water drainage — it is a major advantage over a hinged French door and its raised threshold.
The simple slider is enough for everyday dimensions: the leaf glides in front of the fixed one. Beyond a certain width or for heavy leaves, the lift-and-slide is better suited: you lift the leaf before gliding it, which ensures a smooth glide and perfect sealing once lowered again.
Current models are. We fit a multi-point hook lock, anti-lift rollers that prevent the leaf being levered out, and optional laminated glazing. These devices correct the weaknesses of the old sliders and give the security of a real access door.
A pass with the vacuum in the bottom rail groove once or twice a year, then a clean of the rollers, is enough to keep a smooth glide. You need to prevent dust and leaves from building up in the rail. No hinge to grease or leaf to adjust, unlike a French door.
Grants depend on the performance achieved (the Uw coefficient), not on the type of door. A high-performance slider qualifies, depending on your region and income, for a renovation grant and the 6% VAT rate for homes over ten years old. We handle the grant paperwork for you.
Free home survey, grants calculated, a single point of contact. Describe your project in under a minute.