The Sunflex SF80. Our Most Advanced Sliding Door

At The Burgess Group, we offer a premium collection of brands that promise the very best design, performance and interior comfort for your home. Our windows and doors range is also from what are widely considered be glazing professionals to be some of the best brands in the UK with a strong reputation. Sunflex is one of these brands, manufacturing premium sliding doors. There is now an additional sliding door in our range which makes the technical capability, aesthetics and performance as best as it can be. That product is the latest generation Sunflex SF80.

Designed in Germany by Sunflex, with over 35 years at the forefront of sliding doors, the SF80 is a triple-glazed, ultra-high-performance sliding door system that sits at the top of the market when it comes to its capability, looks and overall engineering. It is loved by architects, specifiers and homeowners who understand that at this level, the difference between a good sliding door and an exceptional one lies in the details you can’t always see.

Our technical team works alongside you, your builder and your architect from the outset, producing detailed CAD drawings to ensure your door design is right before a single profile is cut. At this level, precision in the planning is what delivers precision in the installation.

Some other sliding doors only look slim when viewed straight on. But from an angle a deep reinforcing profile of up to 200mm deep can be visible. The SF80 is genuinely slim from every perspective. The result is near-uninterrupted glass and a clean, contemporary aesthetic that holds up under close inspection.

Dry-Glazed, Not Bonded, Easy Future Maintenance

With Glass being 80% of a product, how your new doors are glazed is one of the most significant engineering decisions Sunflex has made with the SF80, and it deserves proper explanation.

Many ultra slim sliding doors use a bonded design where the aluminium is bonded to the glass in a factory environment. As a result, the glass takes up a lot of the strength and integrity with a bonded door. The bonded glass method works and it is one of many reasons why slimline sliding doors are desirable.

The downside is a longer-term compromise. In the event that the glass needs replacing in the future, the bonded construction means the entire sliding panel needs replacement. And that assumes the product is still in production and the original manufacturer is still trading.

The SF80 uses the tried and tested dry-glazed, beaded construction. This is how windows and doors have been glazed for decades. The glass is held mechanically by internal glazing beads, not bonded to the frame. If the glass ever needs replacing, you replace the glass only at your property. It’s a design choice that prioritises decades of serviceability over short-term aesthetics, and it achieves those slim 30mm sightlines without compromise. For anyone investing in sliding doors at this level, that distinction should matter.

Engineering You Won’t See, But You’ll Feel

Capable of nearly 16m2 panels, the running gear on doors has to be exceptional. The SF80 uses stainless steel wheels on a stainless steel track across all their products. It’s important to know the benefit of this unseen detail over doors with plastic wheels and a track of a softer metal. Even the largest doors are near-silent, effortless to open or close and the transitional movement along the track of any Sunflex door makes these a joy to move every time.

Security and Weather Performance

The SF80 is tested to European RC2 security standards, the equivalent of British PAS 24, with top-of-the-line German locking systems securely engaging your new doors at six locking points. Other built-in features include:

• 6-pin anti-bump, anti-snap, anti-drill key cylinders
• anti-lift design built into your doors
• Accepted for new build installations and Document Q of Building Regulations.

These highly engineered sliding doors are also extensively weather tested. So whether you live in a more exposed countryside or coastal location, across Suffolk, Norfolk or Essex, your new sliding doors provide proper reassurance in strong winds and severe weather.

The Sunflex SF80 Sliding Doors by The Burgess Group

This is not a door for every project. It’s for the homeowner building a contemporary extension who wants to invest in not just one of the best brands of sliding doors internationally, but also from a highly experienced local company that works with you at every stage of your project.

We’d love to work with you, your architect or your builder whether you need large-format doors or simply, decades of product experience to give you the best possible solution for your home. The engineering behind your new doors matters as much as the view you’ll enjoy through them.