We have a range of bespoke, decorative glass options. The Glass Reinforced Plastic skin (GRP) can be painted in any colour to suit the style of the property.
What is the GRiPCORE difference?
GRiPCORE technology® offers superior benefits to anything else on the market. From its solid inner core engineered with a hybrid of traditional and modern materials, the 4mm DoorCo signature skins, to the innovative one-size-fits-all design, GRiPCORE technology is a cutting-edge modern-day addition to any home.
What is the GRiPCORE difference?
GRiPCORE technology offers superior benefits to your customers. Simply better than anything else on the market. From its solid inner core engineered with a hybrid of traditional and modern materials, the 4mm DoorCo signature skins to the innovative one size fits all design, GriPCORE technology can enhance your sales.
Hybrid Technology For Composite Doors
GRiPCORE uses hybrid technology that sets it apart from other composite doors. With a cross laminated timber core and pressed GRP skin, these market leading doors offer greater energy efficiency and performance than any other products of their kind.
These doors will keep your home secure and heating costs down for many years to come, thanks to superior manufacturing. With a 10-year warranty, you’re getting the best.
Hybrid Technology For Composite Doors
GRiPCORE uses hybrid technology that sets it apart from other composite doors. With a cross laminated timber core and pressed GRP skin, these market leading doors offer greater thermal efficiency and performance than other products of their kind.
Stand out from the crowd and offer unique products to your customers today with GRiPCORE from Sternfenster.
Transform Your Home's Look: Explore Our Window / Door Configurator -
Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Muirfield Solid
Muirfield
Monzaii Solid
Merion Grid
Merion
Lytham 4 Grid
Lytham
Carnoustie
Belfry
Augusta Long
Augusta
4 Square
3 Square
Vilamoura
Troon
Sunningdale
Seminole 4
Riviera
Portrush Sunburst
Portrush
Pinehurst
Pevero
Oakmont
Style Your Home with Our Range of Doors
GRiPCORE composite doors are perfect for customisation. Both traditional and modern cutting-edge designs can be requested, matching all manner of property styles.
Colours
Our GRiPCORE composite door range is available in virtually any colour. This includes our standard range of White, Red, Green, Blue and Black to bespoke laminated foils and a premium range of RAL coloured doors.
Glazing
Choosing the right glass can help the door’s design truly shine. We have a range of bespoke, decorative glass options that offer distinctive character. The Glass Reinforced Plastic skin (GRP) can be painted in any colour to suit your taste.
GRiPCORE doors are built with care. They resist cracking, de-lamination and provide maximum thermal movement. Take a closer look at how hybrid GRiPCORE technology can transform your home improvement project today with our interactive brochures.
Transform Your Home's Look: Explore Our Window / Door Configurator -
Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Muirfield Solid
Oakmont
Pevero
Pinehurst
Portrush
Portrush Sunburst
Riviera
Seminole 4
Sunningdale
Troon
Vilamoura
3 Square
4 Square
Augusta
Augusta Long
Belfry
Carnoustie
Lytham
Lytham 4 Grid
Merion
Merion Grid
Monzaii Solid
Muirfield
Styles
GRiPCORE composite doors are perfect for customisation. Our doors are ideal for the discerning homeowner. Both traditional and modern cutting-edge designs can be requested, matching all manner of property styles. Increase your sales by giving your customers a greater range of choice.
Colours
Beyond standard colours, the homeowner can request striking GRiPCORE designs such as Surfside and Spartan stone for their door. Our use of reflective paint also means that dark colours remain cooler, further reducing the likelihood of bowing. Preview our wide range of colours.
Glazing
Exclusive GRiPCORE designs such as Astoria and Metropolis make these composite doors design stand apart from the crowd. Try our door designer to customise and envision how the finished product will look as a part of the property.
GRiPCORE doors are built with care. They resist cracking, de-lamination and provide maximum thermal movement. Request all the marketing collateral you’ll ever need from our dedicated trade support team.
Key Features of GRiPCORE Doors
Engineered to perfection, the solid inner core comprises three layers of cross-laminated hardwood. It’s encased with Laminated Veneer Lumber and features hardwood stiles and rails designed to stop water ingress. GRiPCORE is the ideal composite door for homeowners who require long-term performance.
Pressed together to create a solid timber core.
3 layered engineered hardwood inner core.
Stronger, more rigid & thermally stable than anything on the market.
LVL & hardwood rigid outer frame.
Key Features Of GRiPCORE Doors
Pressed together to create a solid timber core.
3 layered engineered hardwood inner core.
Stronger, more rigid & thermally stable than anything on the market.
LVL & hardwood rigid outer frame.
GRiPCORE Features
Discover the features of market leading GRiPCORE doors. The precision made components allow for a high degree of homeowner customisation.
GRiPCORE Features
Discover the features of market leading GRiPCORE doors. The precision made components allow for a high degree of homeowner customisation.
Premium Quality GRiPCORE Doors
A fusion of modern and traditional materials engineered to the highest calibre, the advanced core makes this door a market leader. It’s the first composite door to feature GRiPCORE technology – nothing else comes close.
GRiPCORE doors with a slam shut lock are ideal for south-facing entrances. The hybrid slab performs better than the standard composite slab. It’s less likely to experience thermal movement in hot weather, ensuring the door operates smoothly every time.
Coupled with our advanced uPVC construction and secure locking systems, this composite door provides exceptional protection.
Sustainable Manufacturing
At Sternfenster, we are committed to lower carbon manufacturing. We use sustainable uPVC, aluminium and timber materials to fight against climate change and build better. Our GRiPCORE doors make homes more energy efficient and reduce unnecessary heating costs.
You can cut down on bills, and CO2 emissions can be drastically reduced. Where we fabricate using recyclable materials, little to no waste will end up in a landfill. Choose energy efficient composite doors from industry leaders and start your quote today.
Premium Quality GRiPCORE Doors
A fusion of modern and traditional materials engineered to the highest calibre, the advanced core makes this door a market leader. It’s the first composite door to feature GRiPCORE technology – nothing else comes close.
GRiPCORE doors with a slam shut lock are ideal for south-facing entrances. The hybrid slab performs better than the standard composite slab. It’s less likely to experience thermal movement in hot weather, ensuring the door operates smoothly every time.
Coupled with our advanced uPVC construction and secure locking systems, this composite door provides exceptional protection.
Sustainable Manufacturing
We’re fully committed to the governments Net Zero 2050 target. Join us a trade partner today to contribute to a greener, more sustainable environment.
Homeowners can cut down on bills, and CO2 emissions can be drastically reduced. Where we fabricate using recyclable materials, little to no waste will end up in a landfill. Start selling with Sternfenster today.
Find Your Approved Installer
Find your nearest approved installer with Sternfenster today.
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Start Selling GRiPCORE From Sternfenster
Get in touch today with enquires for GRiPCORE or any of our market leading products. Sell the best with Sternfenster.
Become An Approved Installer
Grow your business with a market leading, award winning manufacturer. We’ll support you with marketing materials and expert guidance every step of the way.
Outsource Fabrication To Sternfenster
Looking to outsource for any of your projects? Get started today by getting in touch with our expert team. We are here to guide you.
