05
Dec '24
Positivity Breeds Success
Read More
The StyleLine difference
StyleLine – the revolutionary welding process that eliminates the grooving stage. Use the slider below to see the StyleLine difference for yourself.
Non-Graf Welded
Graf Welded
The StyleLine difference
StyleLine – the revolutionary welding process that eliminates the grooving stage. Use the slider below to see the StyleLine difference for yourself.
Non-Graf Welded
Graf Welded
Why StyleLine?
Exclusive to Sternfenster, the StyleLine range of windows and doors sets the standard for performance in the industry.
We manufacture StyleLine windows with state-of-the-art technology. Our modern uPVC windows outperform other products in both quality and performance.
Our windows undergo stringent quality control at our facility to ensure every design has a flawless finish. We supply nothing short of the best.
StyleLine windows have a smooth finish. With no grooving stage, there is no loss of vinyl at the corner joint. This trademark makes our windows unique.
There is no corner cleaning stage. The excess plastic is pushed inside the chambers for a tidier, more appealing finish. We transform the manufacturing process to build better.
With multi-point shoot bolt locking, internal beading and superior weld strength, StyleLine windows are extremely secure.
Why StyleLine?
Exclusive to Sternfenster, the StyleLine range of windows and doors sets the standard for performance in the industry.
We manufacture StyleLine windows with state-of-the-art technology. Our modern uPVC windows outperform other products in both quality and performance.
Our windows undergo stringent quality control at our facility to ensure every design has a flawless finish. We supply nothing short of the best.
StyleLine windows have a smooth finish. With no grooving stage, there is no loss of vinyl at the corner joint. This trademark makes our windows unique.
There is no corner cleaning stage. The excess plastic is pushed inside the chambers for a tidier, more appealing finish. We transform the manufacturing process to build better.
With multi-point shoot bolt locking, internal beading and superior weld strength, StyleLine windows are extremely secure.
Superior Quality
Revolutionary welding process eliminates grooving stage
With cutting-edge Quad Welder technology, we can produce smooth, seamless frames. No vinyl is lost at the corner joint, keeping both the frame and sash tough and durable.
StyleLine windows impress both visually and with their stunning performance. Transform the home with beautiful windows that can add value to the property.
Unique Design
No grooved corners
Unlike other uPVC windows, StyleLine does not have grooved corners. Excess plastic is pushed inside the chambers for a tidy finish.
These windows stand apart from others due to our revolutionary machinery. The unique quality of the manufacturing is evident against competitor products.
Highly Secure
Shootbolt locking
Highly secure, each StyleLine window comes with a multi-point shootbolt locking system, with key locking handles as standard. They are internally beaded for additional protection.
Our StyleLine windows and doors are compliant with the British Standard Kitemark and Secured by Design standards. You can have peace of mind that these windows are designed in line with police security specifications.
styleline
Superior Quality
Revolutionary welding process eliminates grooving stage
With cutting-edge Quad Welder technology, we can produce smooth, seamless frames. No vinyl is lost at the corner joint, keeping both the frame and sash tough and durable.
Build your reputation and drive your sales with StyleLine windows. They are suited to properties of all styles, making them an easy sell for a wide range of customers.
Unique Design
No grooved corners
Unlike other uPVC windows, StyleLine does not have grooved corners. Excess plastic is pushed inside the chambers for a tidy finish.
These windows stand apart from others due to our revolutionary machinery. The unique quality of the manufacturing is evident against competitor products.
High Security
Shootbolt locking
Highly secure, each StyleLine window comes with a multi-point shootbolt locking system, with key locking handles as standard. They are internally beaded for additional protection.
Our StyleLine windows and doors are compliant with the British Standard Kitemark and Secured by Design standards. Give your customers consumer confidence with Secured by Design accreditation.
styleline
StyleLine profile options
Choose a flush sash or chamfered profile with authentic timber styling.
FLUSH
CHAMFERED
StyleLine profile options
Choose a flush sash or chamfered profile with authentic timber styling.
FLUSH
CHAMFERED
Transform Your Home's Look: Explore Our Window / Door Configurator -
Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Single Colours
Our single colours are readily stocked and available with quick turnarounds.
White / White
White Grain / White Grain
Anthracite Grained / Anthracite Grained
Classic Cream / Classic Cream
Chartwell Green / Chartwell Green
Rosewood / Rosewood
Nut Tree / Nut Tree
Irish Oak / Irish Oak
Golden Oak / Golden Oak
Black Ash / Black Ash
Anthracite / Anthracite
Dual Colours
Enjoy interior and exterior customisation, as well as shorter delivery times with our stunning dual colour options.
Heritage Colours
Available for fast dispatch, our heritage colours offer shorter delivery times.
Premium Colours
Providing exceptional quality and individuality, our non stocked premium colour are available at an additional cost with extended lead times.
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White Grain / White Grain
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grained / Anthracite Grained
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Classic Cream / Classic Cream
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Chartwell Green / Chartwell Green
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Rosewood / Rosewood
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Nut Tree / Nut Tree
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Irish Oak / Irish Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Golden Oak / Golden Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Ash / Black Ash
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite / Anthracite
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Irish Oak / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Chartwell Green / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Rosewood / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Nut Tree / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Golden Oak / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grained / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Grey Ali / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Smooth / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White Grain / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Classic Cream / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Ash / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Smooth / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
English Oak / English Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
English Oak / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Heritage White / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ice Cream / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Heritage White / English Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Ash / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ginger Oak / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Dark Red / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Vin Rouge / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Fir Green / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Blue Steel / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Quartz Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Basalt Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Slate Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Cedar Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Claystone / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Honey Oak Super Matt / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pepper Oak Super Matt / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Soft Cherry / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Rustic Cherry / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Bronze Metallic / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pyrite Metallic / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Silver Bullit / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Sage Smooth Matt / White PVC
TURN AROUND
Beautiful Colours
Styleline windows stand out when matched with the perfect colour. We offer durable, hard-wearing colours that will maintain their vibrancy for many years. Preview our traditional and modern range to explore our wide range of colours.
Clear
Arctic
Autumn
Casin
Chantilly
Charcoal Sticks
Contora
Cotswold
Digital
Everglade
Flemish
Florielle
Mayflower
Minister
Oak
Pelerine
Reeded
Stippolyte
Sycamore
Taffeta
Tribal
Warwick
Glass Selected:
Clear
Bespoke Glazing
We offer a range of beautiful, bespoke glazing options. Made to measure and specialist designs are available, along with solar and privacy glass options.
Antique Black
Black
Brilliant Bronze
Gold
Chrome
Grey
Satin Chrome
Solid Gold
White
Antique Black
Black
Brilliant Bronze
Gold
Chrome
Grey
Satin Chrome
Solid Gold
White
Handles & Hardware
Styleline windows are available with a range of high performance handles. Choose window handle colours to match the property style.
Transform Your Home's Look: Explore Our Window / Door Configurator -
Preview Our Extensive Range of Interior and Exterior Shades With The “Turn Around” Icon.
Single Colours
Our single colours are readily stocked and available with quick turnarounds.
White / White
White Grain / White Grain
Anthracite Grained / Anthracite Grained
Classic Cream / Classic Cream
Chartwell Green / Chartwell Green
Rosewood / Rosewood
Nut Tree / Nut Tree
Irish Oak / Irish Oak
Golden Oak / Golden Oak
Black Ash / Black Ash
Anthracite / Anthracite
Dual Colours
Enjoy interior and exterior customisation, as well as shorter delivery times with our stunning dual colour options.
Heritage Colours
Available for fast dispatch, our heritage colours offer shorter delivery times.
Premium Colours
Providing exceptional quality and individuality, our non stocked premium colour are available at an additional cost with extended lead times.
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White Grain / White Grain
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grained / Anthracite Grained
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Classic Cream / Classic Cream
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Chartwell Green / Chartwell Green
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Rosewood / Rosewood
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Nut Tree / Nut Tree
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Irish Oak / Irish Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Golden Oak / Golden Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Ash / Black Ash
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite / Anthracite
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Irish Oak / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Chartwell Green / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Rosewood / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Nut Tree / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Golden Oak / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grained / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Grey Ali / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Smooth / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White Grain / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Classic Cream / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Ash / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Smooth / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
English Oak / English Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
English Oak / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Heritage White / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ice Cream / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Heritage White / English Oak
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black Ash / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite / Heritage White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ginger Oak / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Dark Red / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Vin Rouge / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Fir Green / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Blue Steel / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Quartz Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Basalt Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Slate Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Cedar Grey / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Claystone / White
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Honey Oak Super Matt / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pepper Oak Super Matt / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Soft Cherry / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Rustic Cherry / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Bronze Metallic / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pyrite Metallic / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Silver Bullit / White PVC
TURN AROUND
Outside View
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Sage Smooth Matt / White PVC
TURN AROUND
Beautiful Colours
Styleline windows stand out when matched with the perfect colour. We offer durable, hard-wearing colours that will maintain their vibrancy for many years. Preview our traditional and modern range to explore our wide range of colours.
Clear
Arctic
Autumn
Casin
Chantilly
Charcoal Sticks
Contora
Cotswold
Digital
Everglade
Flemish
Florielle
Mayflower
Minister
Oak
Pelerine
Reeded
Stippolyte
Sycamore
Taffeta
Tribal
Warwick
Glass Selected:
Clear
Bespoke Glazing
We offer a range of beautiful, bespoke glazing options. Made to measure and specialist designs are available, along with solar and privacy glass options.
Antique Black
Black
Brilliant Bronze
Gold
Chrome
Grey
Satin Chrome
Solid Gold
White
Antique Black
Black
Brilliant Bronze
Gold
Chrome
Grey
Satin Chrome
Solid Gold
White
Handles & Hardware
Styleline windows are available with a range of high performance handles. Choose window handle colours to match the property style.
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
Steel Reinforcing And Internal Beading For Strength
StyleLine windows are exceptionally strong. The uPVC material is bolstered with steel for strong reinforcement. The glazing is also internally beaded which prevents intruders from prising into the unit from the outside. All security is in line with the latest European standards, giving you complete peace of mind that your home is secure.
State-Of-The-Art-Machinery
Our StyleLine windows are manufactured using state-of-the-art technology, which enables us to produce uPVC products of superior design and quality. These windows provide you with a consistent, high quality finish throughout.
Every window goes through a stringent manufacturing process to provide you with a flawless design and stunning aesthetics.
Steel Reinforcing And Internal Beading For Strength
Steel reinforcing, internal beading and incredible weld strength make our products exceptionally strong. The steel reinforcement of the uPVC enhances the rigidity, offering greater protection against the elements.
StyleLine windows are internally beaded in line with the latest European security standards, including BS7950 and PAS24. Additional claw locking is available for enhanced protection.
State-Of-The-Art-Machinery
StyleLine windows are unique in that our technology completely removes the grooving stage. Our machinery removes the corner joint which provides a unique flush finish.
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 your StyleLine products come with a guarantee?
There is a ten year guarantee on all PVC profiles, including woodgrain options. We are confident our products and their materials are high quality and built to last.
How is StyleLine different to other uPVC windows?
Stand out from the crowd with unique windows. The impeccable finish is StyleLine’s trade mark, but our exclusive windows and doors are also stronger and more resistant, thanks to a revolutionary welding process that completely eliminates the grooving stage.
How energy efficient are these windows?
Not only do these windows look stunning but they also possess outstanding weatherproofing performance. With a WER (Window Energy Rating) of A as standard, you have the option for further enhancements by choosing triple glazing. Clever design features such as double weather seals, low sightline gaskets and super space bars result in incredible energy efficiency.
How is Sternfenster being sustainable?
We are committed to reducing carbon emissions in line with the government’s Net Zero target of 2050. Using sustainable materials such as uPVC, we’re able to recycle post consumer waste on a broad scale and contribute towards a circular economy.
Learn more about sustainability at Sternfenster here.
Why choose Sternfenster?
We are an industry leading, award winning manufacturer based in Lincoln, well known throughout the UK for the quality of our products. We deliver outstanding service to the trade and homeowners, giving you everything you need to get your project started.
Choose us for products like Styleline that are made better than most. We work with trusted installers throughout the UK who perform fittings of the highest standard.
Contact our team today with any enquiries you have about StyleLine products or our services.
Frequently Asked Questions
How is StyleLine different to other uPVC windows?
Stand out from the crowd with unique windows. The impeccable finish is StyleLine’s trade mark, but our exclusive windows and doors are also stronger and more resistant, thanks to a revolutionary welding process that completely eliminates the grooving stage.
Do your StyleLine products come with a guarantee?
There is a ten year guarantee on all PVC profiles, including woodgrain options. We are confident our products and their materials are high quality and built to last, so we ensure you receive the best guarantee on our products possible.
Why choose Sternfenster?
We are an industry leading, award winning manufacturer based in Lincoln, well known throughout the UK for the quality of our products. We deliver outstanding service to the trade and homeowners, giving you everything you need to get your project started.
Choose us for products like Styleline that are made better than most. We work with trusted installers throughout the UK who perform fittings of the highest standard.
Contact our team today with any enquiries you have about StyleLine products or our services.
How energy efficient are these windows?
Not only do these windows look stunning but they also possess outstanding weatherproofing performance. With a WER (Window Energy Rating) of A as standard, you have the option for further enhancement by choosing triple glazing. Clever design features such as double weather seals, low sightline gaskets and super space bars result in incredible energy efficiency.
How is Sternfenster being sustainable?
We are committed to reducing carbon emissions in line with the government’s Net Zero target of 2050. Using sustainable materials such as uPVC, we’re able to recycle post consumer waste on a broad scale and contribute towards a circular economy.
Learn more about sustainability at Sternfenster here.
Energy Savings Calculator
Use our energy savings calculator to find out how much upgrading your windows can save you in the long run.
Energy Savings Calculator
Use our energy savings calculator to find out how much your customers can save in the long run.
Find Your Approved Installer
Our network of approved installers guarantees you the best service and the highest quality products.
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Start Selling Sternfenster Today
Get in touch today with enquires for or any of our market leading products. Sell the best with Sternfenster.
Become An Approved Installer
Grow your business with an award winning manufacturer. We’ll support you with materials and expert guidance every step of the way.
Outsource Fabrication To Sternfenster
Looking to outsource for any of your projects? Get started today. We will provide you with expert guidance for your trade success.
