Manufacturers of award-winning bifold doors and sliding doors.

Find Your Local Distributor

Welcome to SUNFLEX UK - The Specialist Bifold & Sliding Doors Company

SUNFLEX UK is a renowned manufacturer of superior quality glazing systems, including award-winning bifold doors and sliding doors.

We supply our advanced door and window systems to the glazing trade and work with a carefully selected network of glazing trade distributors across the UK.

We have 25 years’ experience as a bifold and sliding door manufacturer. Our products are renowned for their performance, aesthetic appeal and security, and they carry a range of prestigious accreditations and awards, cementing SUNFLEX UK as one of the most experienced bifold door manufacturers anywhere in the world.

Features

Doors which operate smooth and easily
Industry-leading weatherproofing
High security door systems
25 years’ experience of aluminium doors

Take a look through our website to browse the extensive range of products we offer, including bifold and sliding doors, heritage doors, aluminium windows, entrance doors, internal glass partitions, glass roofs and commercial doors. To get expert advice and to request a quote, please visit our postcode checker and we will refer you to your nearest distributor.

SUNFLEX UK works with carefully selected distributors who install SUNFLEX products across the UK. We provide distributors with first-rate installation training, detailed technical advice and our in-house product design expertise, helping them meet the needs of their customers from the initial discussion all the way through to the completed build.

Bifold Doors

Sliding Doors

Products

Discover our ground-breaking glazing systems, all custom-made to your requirements.

For 25 years, we’ve been an innovative bifold and sliding doors company committed to staying at the cutting-edge of technology and innovation. This has helped us produce doors that excel in all areas — from security and design to insulation and weathering.

Every system is manufactured to the individual requirements of each project, with a range of designs, configurations, colours, hardware and finishing touches to choose from.

Sliding Doors

Contemporary aluminium sliding doors with ultra-slim frames and large glass panels, perfect for maximising your view outside.

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Bifold Doors

Our award-winning folding doors combine narrow frame depths with unrivalled performance and unique, innovative features.

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Heritage Doors

Art Deco-inspired aluminium doors that match the modern performance standards of traditional steel doors.

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Aluminium Windows

A range of hugely versatile and high-performance aluminium windows, available in casement styles, fixed frames or even glass-to-glass corners.

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Entrance Doors

Choose from our range of bespoke aluminium front door designs, or opt for slender French doors or fully glazed single doors for your home.

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Glass Roofs

Our range of glass roofs extends from individual rooflights to custom-designed lean-to glass roofs and glazed patio terrace roofs.

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Internal Glass Partitions

Ideal for dividing open-plan living spaces, our range of internal glass partitions includes frameless sliding doors and stylish slide & turn systems.

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Commercial Glazing

Our moveable glass walls are utilised in a range of commercial applications, including offices, bars, restaurants and even shop-fronts.

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1
Find your local distributor
2
Make an enquiry

Contact your local distributor to enquire about our products and to request a quote.
3
They'll do the rest

We will work with them to supply the products you require and they will install them in your home.

Blog

Whether you like to keep up-to-date with the most modern stainless steel materials we use in our door furniture or are learning how U-values are key to the excellent insulation found in our SUNFLEX UK glazing products, you can find it all in our blog posts about SUNFLEX UK aluminium doors and windows.

Structurally bonded glass – know the risks when choosing a sliding door

What is a structurally bonded sliding door? A ‘structurally bonded sliding door’ has the glass glued/bonded to the door frame all round for a permanent...Continue reading

Why are bifold doors so popular?

Over the past 15 years bifold doors have soared in popularity thanks to the lifestyle trend for open-plan living spaces and creating a connection between home and ga...Continue reading

Weather tightness of doors – what you should know

Weather performance - an introduction Unlike thermal performance, there is no minimum standard required under Building Regulations for weather performance ...Continue reading

View our blog

Projects

Modern glass extension with metal roof on a traditional brick house, surrounded by a garden with various plants and flowers; a person is visible inside through the large windows.

A modern two-story house with solar panels on the roof and a flat-roof extension featuring large windows. The backyard has a paved patio area with outdoor furniture.

Modern, two-story house with solar panels, large windows, and a reflecting pool.

Modern kitchen with skylights, a wooden table, shelves with books, and floor-to-ceiling windows overlooking a backyard with a playhouse and trees.

A person sits on outdoor furniture in a courtyard beside a brick building. The home features an open glass door leading to a modern kitchen and dining area.

Modern brick and glass building exterior with large windows and a patio featuring a long table and chairs.

A modern house with red brick and white facade, large glass doors, and a small garden under a clear blue sky.

Brick exterior with folding glass doors opening to a modern kitchen and dining area with a large island and wooden table.

Modern kitchen and dining area with a wooden table, black chairs, gold cabinets, and large glass doors leading to a garden. Daylight illuminates the marble floor and lounge area.

Modern two-story house with large windows, surrounded by greenery. There is a circular metal sculpture on the lawn, and neighboring traditional-style house visible in the background.

Spacious living room with green sofas and a wood stove, large sliding glass doors open to a patio with outdoor dining, overlooking a scenic view of hills and trees.

Modern kitchen with a large island, bar stools, and floor-to-ceiling windows showcasing a view of trees. Skylights enhance natural lighting.

Modern, single-story glass building surrounded by a large green lawn and trees under a partly cloudy sky.

Modern kitchen and dining area with large sliding glass doors, wooden table and chairs, and pendant lights, viewed from a green lawn outside.

Modern kitchen with white cabinets and open folding glass doors leading to a patio. Wooden floors extend from inside to outside. Brick exterior with plants and a pergola on the patio.

The spacious living room features a gray sofa, large windows, and sleek sliding doors from HBD Systems, offering an open view of the garden and dining area in a stunning glazed extension.

Rear view of a modern house featuring HBD Systems' sleek sliding doors, a patio area with dining set, barbecue, and a spacious green lawn under a clear blue sky.

Brick house with a glass conservatory extending into a patio, surrounded by a lawn with potted plants.

Two people stand by a striking, modern flat-roofed house with wooden siding and large windows, embodying the essence of

Modern house exterior with large glass windows, brick and wood paneling. A patio with outdoor furniture is visible in the foreground under a clear blue sky.

Modern two-story house with large glass windows and a wooden deck, set in a garden with a well-maintained lawn, under a twilight sky.

A small modern garden office with glass walls, featuring a desk, chair, and computer, is nestled amidst green hedges and a lush lawn.

A two-story house with a mix of stone and modern white exteriors, surrounded by a garden with trees and shrubs, under a clear blue sky.

Modern house exterior with a covered patio. Features an outdoor dining area and barbecue set. Large glass doors open to the kitchen and dining room. Brick walls and a green lawn are visible.

Spacious living room with a tan leather sofa, open sliding doors, and a view of a garden. Modern decor with a large rug and decorative branches in a vase.

Open glass bifold doors lead to a balcony with a view of trees. Inside, a wooden table with sunflowers and an orange sofa are visible. Sunlight streams in, illuminating the room.

The modern living room, designed to be flood resilient, boasts large windows, a fireplace, and wooden floors. A bookshelf beside the TV complements various chairs and a red armchair in the corner. In the background, a dining area adds to its appeal.

The interior of a modern yacht features a sleek steering wheel, comfortable seating area, and elegant table with snacks. Large windows seamlessly blend the indoors with views of the water and trees outside, enhancing the boat's luxurious ambiance.

Modern kitchen with white cabinets and island, glass doors opening to a garden view. Skylight above, tiled floor, and barstool seating.

Modern kitchen with a large island and dark cabinetry, featuring tile flooring and a glass door leading to an outdoor view.

Stone building with modern glass extension, steps leading to patio with outdoor furniture, surrounded by green lawn and shrubs.

Rear view of a brick house with large windows, a gable roof, and a patio featuring a table and six chairs. A wooden fence borders the outdoor space.

Modern kitchen with glass sliding doors opening to a stone-tiled patio. Indoor area features a breakfast bar, black chairs, and neutral cabinetry. Outdoor area includes steps and green lawn.

Modern living space with brick walls, featuring a lounge area with two chairs, a coffee table, and a dining area with a wooden table and chairs. Glass doors open to the outside.

Modern house exterior with large glass windows, black frames, and a beige tiled patio. Visible interior features white sofas. Green lawn and trees in the background under a blue sky.

View all Projects

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.

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Welcome to SUNFLEX UK - The Specialist Bifold & Sliding Doors Company

Sliding Doors

Bifold Doors

Heritage Doors

Aluminium Windows

Entrance Doors

Glass Roofs

Internal Glass Partitions

Commercial Glazing

Find your local distributor

Make an enquiry

They'll do the rest

Structurally bonded glass – know the risks when choosing a sliding door

Why are bifold doors so popular?

Weather tightness of doors – what you should know

Become an accredited distributor