
VEKA Imagine PVCu Sliding Patio Doors
Inline sliding patio doors that open a wall to the garden without giving up floor space.
- 2, 3 or 4
- Panes
- from 1.4 W/m²K
- U-value
- PAS 24:2022
- Security
- Low / Part M option
- Threshold
PVCu patio doors, explained
The Imagine patio door is VEKA's inline sliding door: two, three or four panes that glide on a track, one-handed, with a slim frame that keeps the view almost uninterrupted. It is the most economical way to a wide glazed opening and, because the panels slide rather than swing, it barely touches the living space. We fabricate it at our factory in Pyle to your opening size, with PAS 24:2022 security and U-values down to 1.4 W/m²K double glazed.
The appeal of the Imagine patio door is the view. Slim sightlines and large panes provide virtually unhindered sight of the garden, and the door glides easily with one hand on performance hardware. Because nothing swings into the room, furniture can sit close to the opening and the door works well in kitchens, dining rooms and smaller extensions where a bifold would be in the way.
There is no need to choose between style and function. For clean-cut lines choose a bevelled frame; to soften the appearance choose the rounded detail of a sculptured frame. Inside, a flush frame blends into the room and gives an exceptionally neat plaster line. The colour collection has been developed with a variety of homes in mind: smooth colours for a contemporary feel, woodgrains to echo painted or stained timber, and dual colour, so you might have Anthracite Grey outside and white inside to suit the décor.
Performance is tested rather than claimed. VEKA publish U-values down to 1.4 W/m²K with double glazing and 1.2 W/m²K with triple glazing, air permeability Class 3 and water tightness Class 5A. The door is certified to PAS 24:2022 and can meet Secured by Design. A low threshold option gives level access for Part M compliance.
Configurations run from a two-pane door with one sliding leaf to three- and four-pane arrangements for wide openings, sliding internally or externally, in the Variations colour and woodgrain range. Trade customers can send sizes for a written quotation; homeowners can ask us to survey and install.
Why choose PVCu patio doors
Unhindered views
Slim sightlines and big panes keep the garden in view whether the door is open or closed.
One-handed
Performance hardware lets the sliding leaf glide with one hand. Nothing swings into the room.
Thermally efficient
U-values down to 1.4 W/m²K double glazed and 1.2 W/m²K triple glazed.
PAS 24:2022
Certified security with multi-point locking; Secured by Design capable.
Bevelled or sculptured
Choose the frame profile and the colour, inside and out, from the Variations range.
Level access
A low threshold option gives easy, Part M compliant access to the garden.

Colour and style
Frame it your way
Bevelled for clean lines or sculptured for a softer look, then a colour: smooth for a contemporary feel or woodgrain for the look of stained or painted timber. Dual colour lets you match a grey exterior with a white interior, and the flush internal frame makes for a tidy plaster line.

Living space
Opens up without taking over
An inline slider gives the widest glazed opening for the least intrusion. It is the sensible choice where a bifold's folded stack would block a walkway, and where budget favours PVCu over aluminium. Three- and four-pane doors span wide openings with a single sliding leaf or two.
Specifications
Figures are published by the systems manufacturer for the profile system. Performance of a finished window or door depends on size, glazing and hardware; we confirm the specification on your quotation.
Profile
- System
- VEKA Imagine Patio DoorSource: VEKA plc / NBS Source, Imagine Patio Door
- Configurations
- Two, three or four pane; internal or external slidingSource: VEKA plc / NBS Source, Imagine Patio Door
- Sash style
- Sculptured or bevelledSource: VEKA plc / NBS Source, Imagine Patio Door
- Glazing beads
- 28 mm bevelled, 28 mm sculptured or 32 mm bevelledSource: VEKA plc / NBS Source, Imagine Patio Door
- Threshold
- Standard or low threshold (Part M compliant option)Source: VEKA plc / NBS Source, Imagine Patio Door
Thermal
- U-value, double glazed
- Down to 1.4 W/m²KSource: VEKA plc / NBS Source, Imagine Patio Door
- U-value, triple glazed
- Down to 1.2 W/m²KSource: VEKA plc / NBS Source, Imagine Patio Door
Weather
- Air permeability
- Class 3Source: VEKA plc / NBS Source, Imagine Patio Door
- Water tightness
- Class 5ASource: VEKA plc / NBS Source, Imagine Patio Door
Security
- Security standard
- PAS 24:2022Source: VEKA plc / NBS Source, Imagine Patio Door
- Secured by Design
- CapableSource: VEKA plc / NBS Source, Imagine Patio Door
Standards
- Standards
- BS EN 12608-1+A1:2020Source: VEKA plc / NBS Source, Imagine Patio Door
- Management systems
- ISO 9001, ISO 14001, ISO 50001Source: VEKA plc / NBS Source, Imagine Patio Door
Finish
- Colours
- VEKA Variations colours and woodgrains; dual colour optionSource: VEKA plc / NBS Source, Imagine Patio Door
Fabrication
- Manufactured by
- KNM Ltd, Pyle, BridgendSource: KNM Ltd
- Supply
- Supply only (trade) or supply and install (homeowners, South Wales)Source: KNM Ltd
- Quotation
- Written quotation from your sizes and specificationSource: KNM Ltd
Colours and finishes
Choose a finish to see it on a frame. Dual colour, one colour outside and another inside, is available on this system.
Sliding door elevation, shown in the selected finish
Colours are reproduced as closely as screens allow. Ask for a physical sample before ordering. Availability of individual foils and powder-coat colours is confirmed at quotation.
Configurations
Two pane
One fixed pane and one sliding leaf, sliding left or right. The classic patio door.
Three pane
A central or offset slider between fixed panes for wider openings.
Four pane
Two sliding leaves meet in the middle over two fixed panes: a wide, symmetrical opening.
Internal or external slide
The sliding leaf can run on the inside or the outside track to suit the room.
Gallery
If you want to open the back of the house to the garden on a sensible budget, a PVCu patio door is where to start. Think about which way you want the leaf to slide (usually away from the kitchen side), whether you want a low threshold for step-free access, and the colour inside and out. Most customers choose an A-rated double glazed unit; triple glazing is available if the room is hard to heat.
We measure the opening, manufacture the door in Pyle and install it, including making good. We have been supplying these doors to homeowners in South Wales for many years.
We have fabricated PVCu sliding doors for the trade for many years and can tailor a package to your requirements. Email the structural opening size in millimetres, the number of panes, which leaf slides and to which side, threshold type, colour inside and out and glass specification, and we will arrange a written quotation. Lead times are quoted per order.
Doors are fully fabricated and hardware-fitted at our factory, supplied glazed or unglazed, for collection or delivery.
Questions about PVCu patio doors
Bifold or sliding doors: which should I choose?
Bifolds open up almost the whole width of the opening, which is ideal if you want the room and garden to become one space in summer. Sliding doors keep larger panes and slimmer frames, so the view is better when closed, which is most of the year in Wales. Sliding doors also avoid a stack of folded panels. If the opening is wide and tall, or you want the biggest glass, choose sliding; if you want the widest clear opening, choose bifold. Our guide on bifold or sliding doors compares them in detail.
What threshold options are there for doors?
A rebated (weathered) threshold gives the best protection against driving rain and is the usual choice on exposed elevations. Low threshold options reduce the step for easier access, and level thresholds suit sheltered openings or where Part M level access is required. The VEKA Imagine patio door has a Part M compliant low threshold option and the Smart Visofold and Visoglide systems offer low and level options.
What do PAS 24 and Secured by Design mean?
PAS 24 is the British security standard for doors and windows. A PAS 24 product has passed physical attack tests on the frame, locks and hinges. Secured by Design is the UK police initiative that specifies PAS 24 products together with other measures for new homes. All of the window and door systems we fabricate are PAS 24 tested, and the VEKA and Smart systems are capable of meeting Secured by Design when specified with the appropriate hardware and glass.
Can I have a different colour inside and outside?
Yes. Dual colour is available on the VEKA PVCu systems (a woodgrain or colour foil outside with white inside is the usual request) and on the Smart aluminium systems, where inside and outside faces can be powder coated in different RAL colours. Tell us both colours when you ask for a quotation.
Do you install as well as manufacture?
Yes. For homeowners across South Wales we survey, manufacture and install our windows and doors. For trade customers we supply the finished frames for you to fit. If you are unsure which service you need, tell us about the project and we will advise.
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Also consider

Visoglide Aluminium Sliding Doors
Slimline aluminium sliding doors with an 83 mm interlock, panels to 250 kg, and a view that stays open when the door is shut.

Visofold Aluminium Bifold Doors
Thermally broken aluminium bifolds that fold an entire wall away, fabricated in Pyle on the Smart Visofold system.