Menu
Product Menu

Ultra-slim sliding doors

Break down the boundaries between inside and out

Over 30 years of specialist door system manufacturing

Sleek design without any compromise on quality

Sunflex-trained and supported installers located nationwide

Ultra-slim framed sliding doors

The SUNFLEX UK range of ultra-slim sliding doors combines narrow sightlines with advanced engineering and smooth operation to create the perfect system for large glazed openings.

The SVG20, with incredibly thin 20mm sightlines, and the SVG30, with slender 30mm intermediate frames, provide a genuine slim framed system whichever angle you view the doors from, making the system ideal for breaking down the boundaries between inside and out and flooding your home full of natural light.

The versatile design of the systems allows for large panels up to 3 metres wide while maintaining the ease of use, advanced security and superior product quality for which SUNFLEX UK products are renowned.

Every SUNFLEX UK sliding door is manufactured by hand in our own factory, ensuring the performance you would expect of a SUNFLEX UK system.

SUNFLEX UK Sliding Door Brochure
Ultra-slim framed sliding doors
Key design features

KEY FEATURE 1
Not a bonded sliding door

Unlike almost every other ultra-slim sliding door system on the market, the SUNFLEX UK SVG20 and SVG30 systems ARE NOT manufactured with fully bonded glazing.

Whilst structurally bonded systems can achieve narrow sightlines, permanently gluing (or bonding) the glass to the frame means that should the glass ever break you would need to replace the whole panel and not just the glass – something that may not be covered by your home insurance policy.

SUNFLEX UK sliding doors are designed to allow for the glazing to be removed, providing you with complete peace of mind for years to come. For more information about the risks associated with full-bonded sliding doors read our blog.

KEY FEATURE 2
Flush stacking panels

The SUNFLEX UK range of SVG aluminium sliding doors can be designed with an innovative flush stacking detail, where all the panels slide neatly behind the next to create a contemporary appearance when the doors are opened.

Not only does this create aesthetic appeal, it also maximises the space that is provided when the doors are slid back – perfect for breaking down the boundaries between your home and garden.

KEY FEATURE 3
Slim from any angle

Designed without the need of external reinforcing profile or a chunky frame that extends away from the glass, our SVG aluminium sliding doors look slim from any angle – not just when viewed from straight-on – allowing you to make the most of your views out, wherever you are looking at them from.

Whether you opt for the SVG20 (20mm profile width) or SVG30 (30mm profile width), the panels offer the same slender 59mm frame depths for a stylish, contemporary look.

KEY FEATURE 4
Complete peace of mind

We understand that making decisions on which sliding door system to choose for your home can be a challenge, especially when the products themselves may (at first glance) look somewhat similar.

For more than 20 years SUNFLEX UK has designed and manufactured some of the most advanced aluminium doors systems on the market and we work closely with a hand-selected network of distributors across the UK to ensure the best possible service and complete peace of mind.

KEY FEATURE 5
Advanced performance

Our sliding doors don’t just look good, they are engineered to operate effortlessly time-after-time, year-after-year in even the most demanding of locations.

From picturesque coastal settings to exposed rural spots, our doors can withstand the British climate all year round and this performance is backed up by independent testing standards for air permeability, water tightness and wind loading.

KEY FEATURE 6
Attention to detail

“It is all the little details that make a big difference”

SUNFLEX UK sliding doors are designed with attention to detail that make all the difference to your finished home. From 4-panel systems where 3 panels slide to one end, to colour-matched tread plates that cover unused elements of track to provide a seamless transition between inside and out and even the stainless steel running gear that ensures even the largest doors are easy to operate, our sliding doors set the standard for quality.

For more than 20 years our in-house research and development team have constantly developed and updated our doors and it’s the little things that go a long way to creating the perfect sliding door system.

KEY FEATURE 7
Your doors, your way

We understand that every home is different which is why our SVG sliding doors our bespoke made to meet your requirements.

Customising your doors allows you to choose from the widest range of configuration options of any sliding door system on the market – from a single panel pocket door all the way up to an 8-panel, centre-opening set – add fixed frames alongside or above the doors, select from more than 200 RAL colours, or finish your doors off with a range of stylish handle designs – your doors, your way.

KEY FEATURE 8
Security as standard

Our SVG sliding doors are fitted as standard with a continuous 6-point locking mechanisms and 6-pin anti-bump, anti-snap and anti-drill cylinders.

Our doors hold the prestigious Secured by Design™ award as well as being and PAS 24 compliant – meeting the security requirements of Building Regulations Part Q when installed with laminated glass

Secured by Design PAS Logo Made in Britain
Products

  • SVG20

    Designed with incredibly narrow 20mm sightlines, the SVG20 is the most advanced system in the SUNFLEX UK sliding door range.

    With no requirements for external reinforcing, the SVG20 provides the narrowest combination of sightline width and frame depth of any sliding door on the market and matches its stunning appearance with effortlessly smooth operation and advanced security.

  • SVG30

    The hugely popular SVG30 with slender 30mm sightlines provides the ultimate combination of slim frames and design flexibility and is exclusively designed, manufactured and available from SUNFLEX UK.

    The SVG30’s advanced weather performance ensures that it is suited to even the most exposed locations, whilst providing the same advanced standards of security, usability and quality as the rest of the SUNFLEX UK sliding door range.

Specifications
SVG20 SVG30
Sightlines 20mm 30mm
Frame depths 59mm 59mm
U-Value Double Glazed From 1.2 W/m²k † From 1.2 W/m²k †
Maximum panel width From 800mm to 3000mm From 800mm to 3000mm
Maximum panel height Up to 2800mm depending on glass specification Up to 3000mm depending on glass specification
Secured by Design™ Yes Yes
Water tightness To 300Pa (Class 7a)* To 300Pa (Class 7a)*
Air permeability To 600Pa (Class 3)* To 600Pa (Class 3)*
Wind load To 1,700Pa (Class C4)* To 1,700Pa (Class C4)*
Flush stacking Standard Standard
Track options 2 – Double or triple tracks 2 – Double or triple tracks
Cover plates Fitted as standard Fitted as standard
Pocket sliding option Yes Yes
Moveable corner post option Yes Yes
Lift and slide option Yes Yes
Expand

* Water tightness and air permeability test performance is dependent upon a number of factors including system configuration and panel sizes.

† Thermal performance is dependent on glass specification.

Why choose a SUNFLEX UK ultra-slim sliding door?

At SUNFLEX UK we have been designing and manufacturing ultra-slim aluminium sliding doors for almost 10 years, investing heavily to reduce sightlines through our ongoing research, development and testing process.

This experience allows us to ensure that our customers receive finished products that don’t just look good, but also perform perfectly and effortlessly. Crucially our ultra-slim sliding doors combine their stunning appearance with advanced security protection, thermal performance and weather protection to add a wow-factor to any type of project.

SUNFLEX UK Sliding Door Brochure
Colours

Colour options

We hold three of our most popular colours in stock to provide the quickest lead-times and most cost-effective option. If you want to truly personalise your sliding doors, you can choose from more than 200 RAL colours in a range of finishes, and even select different colours on the inside and outside of the frames to match the internal décor and external finishes of your home.

SVG20 and SVG30 - Standard colours

  • Anthracite Grey (RAL 7016) matt finish Anthracite Grey (RAL 7016) matt finish
  • Charcoal Grey Metallic (DB703) textured finish Charcoal Grey Metallic (DB703) textured finish
  • Jet Black (RAL 9005) matt finish Jet Black (RAL 9005) matt finish

SVG20 and SVG30 - Popular bespoke colours

  • Slate Grey (RAL 7015) matt finish Slate Grey (RAL 7015) matt finish
  • Grey Aluminium (RAL 9007) semi-gloss finish Grey Aluminium (RAL 9007) semi-gloss finish
  • Traffic White (RAL 9016) matt finish Traffic White (RAL 9016) matt finish
  • Graphite Black (RAL 9011) matt finish Graphite Black (RAL 9011) matt finish
  • Sage Green (RAL 6021) matt finish Sage Green (RAL 6021) matt finish
  • Pearl Mouse Grey (RAL 7048) matt finish Pearl Mouse Grey (RAL 7048) matt finish
Options

Track options

  • Twin track | No sill | Internal flush floor detail

    Twin track | No sill | Internal flush floor detail

  • Twin track | With sill | Internal flush floor detail

    Twin track | With sill | Internal flush floor detail

Become an accredited distributor

If you are in the glazing trade join our distributor programme today and you’ll receive discounts on select showroom models, the choice of over 40 products for your inventory, and training and technical support directly from SUNFLEX UK.

Join
Find your local distributor