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Low Maintenance, Highly Secure & Stylish

Composite Doors

High performance GRP composite doors designed with 44mm thick, fully insulated door slabs for maximum thermal performance and security. Our leading composite door frames are produced with a choice of Deceuninck’s 2500 chamfered or 2800 decorative profile systems.

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Low Maintenance, Highly Secure & Stylish

Composite Doors

High performance GRP composite doors designed with 44mm thick, fully insulated door slabs for maximum thermal performance and security. Our leading composite door frames are produced with a choice of Deceuninck’s 2500 chamfered or 2800 decorative profile systems.

#SternFensterAt50

spinning wheel image

Composite Doors

High performance GRP composite doors are designed with 44mm thick, fully insulated door slabs for maximum thermal performance and security.

All our composite doors and composite back doors can be customised and tailored to suit any personal taste and property.

Our composite exterior doors are extremely low maintenance due to a durable Glass Reinforced Plastic skin (GRP) that prevents the door from warping, rotting or twisting. It also means your composite door will never require re-painting.

Our composite doors are available in many different styles, colours, hardware options and glass designs.

A CFC free polyurethane insulating core provides superior thermal performance as well as enhancing soundproofing.

Composite Doors

Our doors have a 2mm bow tolerance compared to the standard 5mm. They use a high grade LVL, laminated veneer lumber which protects the frame from moisture making it less likely to warp, twist or bow.

A CFC free polyurethane insulating core provides superior thermal performance as well as enhancing soundproofing.

Our composite doors are available in many different styles, colours, hardware options and glass designs.

Designed To Exceed Current Standards

Our composite doors feature fully reinforced 2mm thick GRP skins which have been regularly tested at BM Trade and are designed to exceed the current standards. They have been manufactured to not warp or bend in the heat.

Designed To Exceed Current Standards

Our composite doors feature fully reinforced 2mm thick GRP skins which have been regularly tested at BM Trade and are designed to exceed the current standards. They have been manufactured to not warp or bend in the heat.

Transform Your Home's Look: Explore Our Window / Door Configurator - Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Augusta Centre Farmhouse
Vilamoura Flush
Turnberry
Valderrama Centre Farmhouse
Troon
Sunningdale Farmhouse
Sunningdale Flush
St Andrews
Seminole 3 Centre Flush
Santon Farmhouse
Portrush
Riviera
Pevero Square Flush
Oakmont
Penina
Muirfield
Monza 2 Solid
Merion Farmhouse
Medinah
Lytham
Lytham Flush
Lytham Farmhouse
Links Villamoura
Links Urban Augusta
Links Valderamma
Links Sunningdale
Links Seminole 4
Links Seminole 5
Links Seminole 3
Links Oakmont
Links Inox Paris
Links Inox Nice
Links Inox Munich
Links Inox Monaco
Links Inox Lyon
Links Inox Biarritz
Links Inox Barcelona
Links Flush
Links Copenhagen
Links Augusta
Links Augusta Centre
Links Augusta Centre 1
Inox Paris
Inox Nice
Inox Nice
Inox Munich
Inox Monaco
Inox Lyon
Inox Lyon
Inox Biarritz
Inox Barcelona
Inox Barcelona Left With Curve Flush
Gleneagles
Gleneagles Solid
Flush
Farmhouse
Farmhouse Oakmont
Copenhagen
Contemporary Vilamoura
Contemporary Gleneagles
Contemporary Seminole
Contemporary Birkdale
Contemporary Chantillycottage
Contemporary Augustalong
Contemporary Belfrycottage
Contemporary Augusta
Colonial
Chantilly Flush
Chantilly Farmhouse
Chantilly Farmhouse Sunburst
Carnoustie
Carnoustie Cottage Flush
Carnoustie Cottage Farmhouse
Birkdale
Belfry Flush
Belfry Farmhouse
Belfry 3 Flush
Augusta Centre Flush
Belfry 3 Farmhouse

Style Your Home with Our Range of Doors

Explore our range of bespoke composite door styles, colours and glazing to create your dream front door. We provide contemporary and traditional designs to suit all property types.

Transform Your Home's Look: Explore Our Window / Door Configurator - Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Augusta Centre Farmhouse
Vilamoura Flush
Turnberry
Valderrama Centre Farmhouse
Troon
Sunningdale Farmhouse
Sunningdale Flush
St Andrews
Seminole 3 Centre Flush
Santon Farmhouse
Portrush
Riviera
Pevero Square Flush
Oakmont
Penina
Muirfield
Monza 2 Solid
Merion Farmhouse
Medinah
Lytham
Lytham Flush
Lytham Farmhouse
Links Villamoura
Links Urban Augusta
Links Valderamma
Links Sunningdale
Links Seminole 4
Links Seminole 5
Links Seminole 3
Links Oakmont
Links Inox Paris
Links Inox Nice
Links Inox Munich
Links Inox Monaco
Links Inox Lyon
Links Inox Biarritz
Links Inox Barcelona
Links Flush
Links Copenhagen
Links Augusta
Links Augusta Centre
Links Augusta Centre 1
Inox Paris
Inox Nice
Inox Nice
Inox Munich
Inox Monaco
Inox Lyon
Inox Lyon
Inox Biarritz
Inox Barcelona
Inox Barcelona Left With Curve Flush
Gleneagles
Gleneagles Solid
Flush
Farmhouse
Farmhouse Oakmont
Copenhagen
Contemporary Vilamoura
Contemporary Gleneagles
Contemporary Seminole
Contemporary Birkdale
Contemporary Chantillycottage
Contemporary Augustalong
Contemporary Belfrycottage
Contemporary Augusta
Colonial
Chantilly Flush
Chantilly Farmhouse
Chantilly Farmhouse Sunburst
Carnoustie
Carnoustie Cottage Flush
Carnoustie Cottage Farmhouse
Birkdale
Belfry Flush
Belfry Farmhouse
Belfry 3 Flush
Augusta Centre Flush
Belfry 3 Farmhouse

Style Your Project with Our Range of Doors

Explore our range of bespoke composite door styles, colours and glazing to offer your customers an exciting range of choices. We provide contemporary and traditional designs to suit all property types.

Transform Your Home's Look: Explore Our Window / Door Configurator - Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Transform Your Home's Look: Explore Our Window / Door Configurator - Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.

Extensive Choice of High Quality Hardware

These flush doors come with a choice of Lever/Lever and Lever/Pad inline, SBP and fab and fix handles. These can be colour customised to suit the style of the property. Choose anything from standard white to striking gold with our quality hardware range.

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Extensive Choice of High Quality Hardware

These flush doors come with a choice of Lever/Lever and Lever/Pad inline, SBP and fab and fix handles. These can be colour customised to suit the style of the property. Choose anything from standard white to striking gold with our quality hardware range.

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Click through our showroom to explore our products in greater detail

Explore Our Virtual Showroom

Click through our showroom to explore our products in greater detail

Explore Our Virtual Showroom

Stylish Composite Doors

As the entrance to your home, your front door says a lot about you so why compromise on looks? Our high-definition composite doors feature advanced GRP skins which give you a real timber appearance, with mouldings which give the feel of a traditional wooden door.

Our elegant designs are combined with a highly robust structure, creating a remarkably strong and durable door. Now you can benefit from a traditional style without compromising on energy efficiency or security.

Stylish Composite Doors

As composite door manufacturers, we know how to build powerful and long lasting doors. Our composite doors are manufactured using the latest uPVC technology with advanced locking systems which offer exceptional security and durability.

State-Of-The-Art-Machinery

Inspired by traditional timber joinery, The Deceuninck uPVC flush sash window can be either fully welded or mechanically jointed for a more authentic appearance. This allows them to offer a traditional charm to new builds or an enhancing feature to traditional or conservation properties.

Partner with us for access to our state-of-the-art technology. At Sternfenster, we supply unique products at competitive trade prices.

Frequently Asked Questions

Do you offer any other types of composite doors?

Who is Sternfenster?

How fast are your lead times?

Does Sternfenster offer any warranties for their products?

Frequently Asked Questions

Do you offer any other types of composite doors?

Who is Sternfenster?

How fast are your lead times?

Does Sternfenster offer any warranties for their products?

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