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Cortizo Lift-and-Slide
Two lift-and-slide systems in the Cortizo range. 4700 Sliding Patio is the lift-and-slide for medium-to-large patio openings. 4900 Sliding HI is the heavier-span thermal-priority lift-and-slide with whole-window Uw from 1.2 W/m²K. Both PAS 24:2022 certified with multi-point locking, both engineered to keep the visible mullion narrow on wide openings. Vitrum Solutions installs the Cortizo lift-and-slide range across Buckinghamshire, Berkshire, Oxfordshire, Surrey and Hampshire.
Cortizo Lift-and-Slide Specifications
Systems
4700 Sliding Patio · 4900 Sliding HI
4700 Sliding Patio
Lift-and-slide for medium-large openings
4900 Sliding HI
Heavier lift-and-slide, Uw from 1.2 W/m²K
Security
PAS 24:2022, multi-point locking
Why Cortizo Lift-and-Slide
What is lift-and-slide
Lift-and-slide is a sliding door operation distinct from a standard slider. The handle physically lifts the leaf off its weather seal before the leaf moves, then drops the leaf back onto the seal when closed. The mechanical advantage means very heavy sashes can be moved smoothly by hand — sashes too heavy for a standard Cor Vision slider — and the closed leaf seats more firmly onto the seal so the air-tightness when closed is excellent.
Cortizo 4700 Sliding Patio — medium-large openings
The 4700 Sliding Patio is Cortizo's lift-and-slide for medium-to-large patio openings. Where a Cor Vision slider hits its sash-weight or span limit, the 4700 takes over — the lift-and-slide mechanism gives the mechanical advantage to handle heavier sashes by hand, while the closed-state air-tightness is excellent for thermal performance.
Cortizo 4900 Sliding HI — heavier spans + thermal
The 4900 Sliding HI is the heavier lift-and-slide spec in the range, with whole-window Uw from 1.2 W/m²K — the thermal-priority Cortizo lift-and-slide. Used on premium contemporary projects where unbroken glass walls and Approved Document L compliance both matter, or on low-energy refurbishments where every part of the building envelope needs to perform thermally.
Slim sightlines, large glass area
Both 4700 and 4900 are engineered to keep the visible mullion narrow even on a very wide opening — so the eye reads the door as a near-uninterrupted glass plane. Combined with the lift-and-slide mechanism's heavy-sash capability, this means panoramic glass walls without bifold-style fragmentation or thicker slider-style central interlocks.
PAS 24:2022 + Secured by Design configurations
All Cortizo 4700 and 4900 opening profiles are PAS 24:2022 certified with multi-point shootbolt locking, anti-lift devices on the running track, and toughened safety glass throughout (mandatory under Approved Document K within 800mm of finished floor level). Secured by Design configurations available where insurance specs require it.
Lift-and-Slide on Our Range
Cortizo lift-and-slide systems feed into our aluminium sliding doors product page. The configurator handles the 4700 / 4900 Sliding HI choice and the per-elevation panel layout.
Aluminium Sliding Doors (Cortizo + Schuco)
Full product page — configurations, dimensions, glazing options, FAQ.
View product page →Standard sliding (Cor Vision)
For lighter sashes — Cor Vision Sliding (34mm interlock) or Cor Vision Plus (20mm central junction, max sash 3.3m × 3m at 500kg).
View Standard Sliding →Get a free quote for Cortizo Lift-and-Slide Doors
Free no-obligation written quote. Fast response times. FENSA registered with a 10-year CPA insurance-backed guarantee. Serving Buckinghamshire, Berkshire, Oxfordshire, Surrey, Hampshire, Hertfordshire & West London.
Other Cortizo Systems
Bifolds, standard sliders, aluminium windows and aluminium front doors are covered by purpose-built Cortizo profile systems — all supplied and fitted by Vitrum Solutions.
Cortizo Bifold
Bi-Fold and Bi-fold Plus Door (slim premium 110 mm reduced central junction).
View Bifold →Cortizo Sliding
Cor Vision Sliding (34mm interlock) and Cor Vision Plus Sliding (20mm central junction).
View Sliding →Cortizo Windows
Cor 70 Hidden Sash — tilt-and-turn / casement, 70 mm thermally broken frame.
View Windows →Cortizo Millennium Plus
70 / 80 mm aluminium entrance door range with PAS 24 multi-point locking.
View Millennium Plus →Cortizo Lift-and-Slide — Frequently Asked Questions
What is the difference between sliding and lift-and-slide?
On a standard slider (Cortizo Cor Vision, Schuco ASE) the handle operates the lock and the leaf rolls along the track. On a lift-and-slide the handle physically lifts the leaf off its weather seal before sliding — this gives the mechanical advantage to move very heavy sashes smoothly by hand, and the closed leaf seats more firmly onto the seal so the air-tightness when closed is excellent. Lift-and-slide is the architectural spec for very large sashes, motorised operation, or where the closed-state air-tightness needs to be exceptional.
What is the difference between Cortizo 4700 and 4900 Sliding HI?
Both are lift-and-slide. The 4700 Sliding Patio is the lift-and-slide for medium-to-large patio openings — the spec used where a Cor Vision standard slider hits its sash-weight or span limit. The 4900 Sliding HI is the heavier-span lift-and-slide with whole-window Uw from 1.2 W/m²K — the thermal-priority option for premium contemporary projects and low-energy refurbishments where the door's thermal performance directly affects the overall building envelope rating.
How does Cortizo lift-and-slide compare to Schuco lift-and-slide?
Both are premium aluminium lift-and-slide systems for large sashes. Schuco's distinguishing strengths are the ASS 70.HI Slimline e-slide motorisation option and ASS 77 PD Panorama (max sash 3200×3000mm at 500kg, Uw < 0.8 W/m²K, RC2 burglar resistance, 30mm central section). Cortizo's 4900 Sliding HI focuses on whole-window Uw from 1.2 W/m²K with the lift-and-slide mechanism. Where the brief is open, we walk you through both at the survey stage. Side-by-side comparison: /blog/cortizo-vs-schuco.
When should I choose Cortizo 4700 / 4900 over Cor Vision Plus?
Choose Cortizo Cor Vision Plus when the architectural priority is the slim 20 mm central junction on a sash up to 3.3 m × 3 m at 500 kg — the slimmest residential slider in the range. Choose 4700 or 4900 lift-and-slide when sash weights or daily-use frequency exceed Cor Vision's manual-slide comfort zone, or when the closed-state air-tightness needs to be the highest practical level (lift-and-slide seats the leaf onto the seal more firmly). The choice is usually clear from the spec at the survey stage.
Are Cortizo lift-and-slide doors PAS 24 certified?
Yes — all Cortizo 4700 and 4900 opening profiles are PAS 24:2022 certified with multi-point shootbolt locking, anti-lift devices on the running track, and toughened safety glass throughout. Secured by Design configurations available where insurance or new-build specifications require it (recognised by Hiscox, Chubb, AIG and other premium home insurers).
Can lift-and-slide doors be motorised?
Cortizo's residential lift-and-slide range (4700 / 4900 Sliding HI) is operated manually as standard — the mechanical advantage of the lift-and-slide mechanism handles very heavy sashes by hand. For motorised operation, Schuco's ASS 70.HI Slimline with e-slide motorisation is the spec to consider — see /schuco/lift-and-slide.
Do you install Cortizo 4700 / 4900 across Buckinghamshire?
Yes — Vitrum Solutions installs the Cortizo lift-and-slide range across Buckinghamshire, Berkshire, Oxfordshire, Surrey, Hampshire, Hertfordshire and West London. Including Beaconsfield, Gerrards Cross, Marlow, Windsor, Ascot, Virginia Water, Weybridge, Cobham, Esher and the surrounding premium towns where Cortizo is most often specified.
Other Systems We Install
We supply and fit the full premium-brand glazing range across the Home Counties. Compare specifications and pricing across our brand hubs.
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