Sunseeker slide and turn doors are one of the more affordable options when it comes to slide and turn doors, in a market that offers very little choice. Affordable, well made, smooth sliding and very functional, Sunseeker doors come recommended when you don’t necessarily want a sliding door, but like the features you get with a bifold.
Sunseeker Doors

SunSeeker UltraSlim slide-and-turn doors have earned strong reviews from UK homeowners looking for a modern alternative to bifolds or sliding patio doors. Slim, smooth operating, light yet reassuring in their quality, there is a reason thousands of these doors have been installed in the UK and abroad. We think this design of door really does provide an excellent alternative to bifold or sliding doors and is worth checking out.
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Pros
- One of the most affordable slide and turn doors on the market
- Minimal frame sightlines
- Security Tested for both new and existing openings
- Can accept integral blinds other doors can't
Cons
- Only available supply and install
What are Sunseeker Doors?
The SunSeeker UltraSlim is a British-designed aluminium slide-and-turn patio door system, offering a distinctive alternative to traditional bifolds or sliding doors. Unlike systems that rely on folding hinges or bonded glass panels, SunSeeker’s design allows each panel to slide individually along a bottom track before pivoting open at 90 degrees.
The result is a clean, frameless-like appearance with a clear opening when fully retracted. With just 19mm aluminium side profiles and PAS 24 certification, the UltraSlim system combines slim sightlines with proven security and real-world practicality. Made in England and backed by thousands of installations, this is one of the most established and affordable slide-and-turn systems in the UK.

Design and Aesthetics
Visually, the SunSeeker UltraSlim stands out for its ultra-narrow 19mm aluminium side profiles. Compared to typical bifolds with 120mm+ panel junctions or sliding doors with bonded 20–25mm interlocks, SunSeeker offers a consistent slim profile across each sash.
There are no external hinges, and the stacked panels sit cleanly to the side, maintaining a sleek aesthetic whether open or closed.
This website is a big fan of slide and turn doors, because they are more functional and genuinely provide the benefits of both a slider and a bifold, but lean more towards the benefits you only get with a bifold door.

When closed, the system mimics the appearance of a bifold but with thinner lines. When open, the fully retracted panels create a generous walkthrough—up to 10 metres wide—with no fixed sash in the way. The doors can also be partially opened and spaced along the track to allow ventilation, offering more flexibility than conventional bifolds or sliders.
For those seeking a more minimal look, SunSeeker also offers a frameless double-glazed version with glass-to-glass edges, suitable for both interior and exterior use.
Technical Information
There is lots of technical information on the Sunseeker website itself, but the system is latest generation, well-designed and meets the latest standards for profile quality, colour finishes, glass and hardware.
- Side profile sightline: 19mm aluminium (frameless option available)
- Maximum width: Up to 10 metres
- Track depth (bottom): 65mm including cill (75mm recess required for flush threshold)
- Top track profile: 63mm wide x 40.5mm high
- Side frame depth: 63mm
- Weight-bearing: Bottom track (not top-hung)
- Glazing: Double glazed as standard, Kitemarked units; optional laminated, argon-filled, antisun, obscured or tinted glass
- Integral blinds: Uni-Blinds in venetian or pleated styles, sealed within the glazing
- Opening types: All panels independently sliding and pivoting; master door can be left or right
- Matching windows available
- Colours: Anthracite grey and pure white as standard; up to 300 RAL colours available powder-coated in-house
- Configurations: Fully retractable, multiple panels, spaceable ventilation option
Security and Energy Efficiency
The UltraSlim system meets PAS 24 standards for enhanced security, including a unique multi-point locking system designed specifically for the slide-and-turn function. Each panel is lockable, helping to maintain strength and safety even when partially open.
Thermal performance is supported by thermally broken aluminium frames and double-glazed sealed units with soft-coat low E coating, argon gas fill and warm edge spacer bars.
With bottom-rolling operation and no external hinges, the system is both robust and discreet. The fully flush cill option makes it suitable for level-access applications, provided the subfloor is prepared correctly during installation.

How Much Do They Cost?
SunSeeker UltraSlim doors start from around £1,200 per panel plus VAT, supplied and installed. Prices of course depend on sizes, colour, glass specification and even where your doors are needed.
Installation and site survey are included in the quoted price. As alwaysPrice, larger sizes, bespoke colours, or glass upgrades will increase the total cost.
For anyone wanting to buy Sunseeker doors on a trade supply only basis, they are not availabel.
Other Products to Compare with Sunseeker Doors.
SunSeeker UltraSlim doors offer an alternative to both bifolding and sliding doors, with a unique slide-and-turn operation. But if you are looking for comparable products, your choices are very limited.
Frameless Glass Curtains – FGC Doors
At the top end of the price range you’ll find the Frameless Glass Curtains made by FGC in Kent. With prices around £1500 per panel for the Double Glazed Frameless system, a standard size door opening with three or four panels can cost nearly £11000 plus VAT – nearly three times the price.
Vistaline Slide and Turn Doors
Also available are Vistaline Doors by ID Systems in Norwich. Swiss design, UK made, these are superior to FGC doors, ultra slim, exceptional quality and highly desirable. Get in touch for more information.
Quickslide Indifold slide and Turn Doors
Quicklide Indifold Doors are an aluminium slide and stack system and an much cheaper alternative to the very expensive FGC and ID Systems. The sightlines are slightly wider than the competition, but these doors are well-designed and made, operate smoothly and feel very solid and reliable when opening and closing. The locking action is also very positive adding to their reassuring feel.
Monoslide 80 by Sunparadise Systems
Monoslide 80 Sunparadise Systems are slide and turn doors with the function of moving out of the way, round a corner and even concealed in a cupboard! They’re especially good on open corner designs where you can stack the doors away from the opening itself. Different and a real talking point too. The downside to these doors is they’re only suitable for new build openings.
However, most bifold and slider systems do not offer the same individual panel spacing or pivot-stacking flexibility. SunSeeker is also one of the few long-established UK brands offering this type of system at scale.
More Information and Where to Buy
SunSeeker UltraSlim slide-and-turn doors are manufactured in the UK by SunSeeker Doors and available for direct purchase and installation. A few well-known brands of slide and turn have ceased trading in recent time, so the choices for this kind of door with independent moving panels is very limited. So you either have the very expensive but very thin brands or more affordable such as Sunseeker or the latest Quickslide product available in uPVC and aluminium.
Contact us for more information on these or any other slide and turn, sliding or folding doors for your project.