For over 35 years, SUNFLEX has been a leading designer and manufacturer of high-quality aluminium bi-fold doors. With a range of products available, you will always be able to find the right solution for your home.
The SUNFLEX UK ultra-slim sliding doors are precision engineered to provide super narrow sightlines and exceptional ease of use, ideal for properties of all shapes and sizes. With an exclusive choice of 20mm, 30mm or 83mm sightlines and every set of doors handmade to your exact specification, the SUNFLEX UK aluminium sliding doors can be tailored to your exact requirements – whatever the size and scope of your project.
They stack together flush, providing a neat, sharp edge when the doors are open, plus you can add a flush track, ensuring a seamless and level transition from inside to out.
SUNFLEX Aluminium Bi-fold Doors feature:
A choice of sightlines - available in the SVG20 with 20mm sightlines, or the German designed SF60 and SF80 30mm frames
Style and performance - A design that ensures not just aesthetic appeal, but smooth, reliable use every day, year after year
Severe weather rating - Engineering for superior protection against wind and rain to meet severe weather performance ratings
Security as standard - Continuous 5-point lock on the lead door and PAS 24 and Secured by Design™ standard security hardware included on all door
“With over three decades of expertise, SUNFLEX continues to set the standard in aluminium door design. Their sliding and bifold systems are built to suit projects of all scales, offering flexibility, advanced security features and a beautifully streamlined finish that complements both traditional and contemporary spaces."
Designed with outstanding thermal performance, SUNFLEX aluminium patio doors help maintain a comfortable indoor temperature all year round, keeping your home warm and energy bills low.
Independently tested to withstand the harshest weather, these doors are a smart choice for exposed rural or coastal locations, offering reliable protection from wind and rain.
With features like anti-slam technology and finger-safe gaskets, SUNFLEX patio doors are built with safety in mind, making them ideal for family homes.
Our process begins with a one-on-one consultation with a door specialist. They'll listen attentively to understand your vision and needs for your home. Together, we'll consider your home's architectural style to recommend a door that best compliments your home. We'll guide you through all your options, from classic styles and rich colours to high-performance glazing and secure hardware.
Once you've made your choices, our experts will meticulously measure your patio door openings for a perfect fit. We will then source your door and we’ll be in touch to arrange an installation date that suits you.
Our experienced installation team will ensure a smooth and efficient patio door replacement process. This can take anywhere from a few hours to a few days depending on how many windows and doors are being replaced. We take meticulous pride in our work, ensuring every window and door is installed with precision. Once complete, our team can walk you through how to operate and maintain your new products.
"The door really is fabulous. The new door makes a real statement to the front of the house. We thought that choosing a door would be difficult - It was ideal seeing all the options in the flesh"
"We really love the new front door. The style is perfect for this period of home. The quality really shows, the house feels so much more secure now. The showroom team have been fantastic from the start through to the finish"
"The reason for choosing Timber Windows of Winchester & Horndean was because of their good timber windows and knowledgeable staff. The windows and doors have met our expectations in every way."
"We were absolutely delighted with the new door as soon as it went in. It looked amazing, with more light coming into the hall and the pure quality of the door is awesome. No more draughts and fully secure. I cannot tell you how many people have commented on how lovely it is! Which is such a compliment to Timber Windows of Horndean & Winchesters products, as not many people talk about front doors, but they do ours!"
