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We specialise in making homes like yours more secure and more beautiful. We achieve this by using expert installers to t British-made PVC-U windows and doors of an exceptional standard. Our track record proves that to replace really can be to upgrade. Our products put the elegance into energy efficiency, the style into security and a lifetime of enjoyment into high performance.


So whether you’re looking for more of a wow factor, more security or to add more value to your home, we’ll help you achieve your aims. Because the products we install are high quality, well tested and well trusted by home-owners across the UK.


You could be turning your home into a lean green energy-saving machine, by installing our PVC-U windows and doors. We can help you to reduce your carbon footprint and your energy bills in lots of clever ways.

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• 10 years insurance-backed guarantee (IBG) •


• Multi-chambered outer and sash frames •


• Argon gas-filled glass units •


• Double or Triple glazed units •


• 100+ window & glass designs •


• FENSA certificate on completion •


• Internal beading for greater security •


• Energy efficiency window systems •


• Factory price direct to public •


• Professional, fast & reliable service •

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Imagine your home with windows that are as long-lasting as they are beautiful – and as elegant as they are energy efficient. By replacing your existing windows with our PVC-U windows, you’ll make your favourite place quieter, safer and more secure.

But that’s just the beginning, when you’re at home you’ll see the difference with new windows that are the perfect colour match for your house, whether they are in White, woodgrain, Cream, Rustic Cherry or one of our 10 other Artisan colour options. You’ll sense the difference too, because our windows come with a Green Guide A rating, so they’ll help to shrink your energy bills. This warm feeling will last as long as your new windows. Throughout their long lifespan, they’ll remain as virtually maintenance-free, efficient and attractive as they were on day one. So by replacing your windows you could add more value to your home.

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Wouldn’t you love some added space? Now you can have it – simply by replacing your existing windows with our bay windows.

Picture what that extra space would do for your house. A better view, whether you’re outside or inside. Outside, you’ll enjoy the new updated look. Inside, you’ll notice that the room feels more spacious. You can choose from White, woodgrain or Artisan coloured windows. Whichever option you select, being PVC-U, your windows won’t rot or lose their looks for the whole of their long life. And added thermal e ciency means lower energy bills for good.

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Evolve VS sash windows maintain the elegant proportions of traditional sash windows, whilst incorporating the very best in modern-day technology to deliver the low maintenance and high security of PVC-U without the problems associated with timber sash windows. Quality-assured Evolve VS sash windows feature tilting upper and lower sashes for ease of cleaning, low-line beads and glazing gaskets for improved sight lines and energy efficient glass for enhanced thermal performance.

Evolve VS PVC-U window frames are fully reinforced with aluminium and sliding sashes are reinforced with galvanised steel to resist deflection under extreme wind-loading conditions and carry the weight of the glass. Steel reinforcement provides a strong, secure fixing for lifting handles, latches and other components.

Evolve VS sash windows have an A window energy (WER) as standard and optional A+, B or C WER ratings can be specified.

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Built around a belief that beauty doesn’t have to compromise performance, WarmCore aluminium windows were created out of a desire to combine the desirability and durability of aluminium with unparalleled insulation. The unique, full width thermal core is key to why WarmCore windows are 25% more thermally efficient than traditional aluminium systems.

Strong and secure, WarmCore windows come
with multi-point locking, internal beading and are backed by a 10 year product guarantee – helping keep you and your home safe. Available as casement or tilt and turn windows, and with a flush sash option that brings the outer frame perfectly level with the opening part of the window – WarmCore windows are the perfect warm, secure and beautiful addition for your home.

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The colour revolution has taken over Europe during the last 20 years, with 40% of European homes now choosing coloured product… and the UK is catching on fast. Brilliant White is still the most popular exterior and interior colour for British homes – but more and more people are choosing realistic woodgrains or bold colours to enhance their homes.

Please note: colour availability may vary according to window type.

[/vc_column_text][vc_empty_space height=”50px”][vc_text_separator title=”COLOURS” border_width=”10″][vc_empty_space height=”50px”][vc_media_grid element_width=”3″ item=”mediaGrid_SimpleOverlay” initial_loading_animation=”none” grid_id=”vc_gid:1483561800898-5e3e6972-00f8-2″ include=”75714,75713,75712,75711,75710,75709,75708,75707,75706,75705,75704,75703,75702,75701,75700,75699″][vc_empty_space height=”50px”][/vc_tta_section][vc_tta_section i_icon_fontawesome=”fa fa-google” title=”Glass” tab_id=”1481289026925-b7316437-e3a9″ add_icon=”true”][vc_empty_space height=”50px”][vc_column_text]We can supply double glazed (DG) and triple glazed (TG) insulated units in a range of tinted colours and coatings to suit each project, including clear and patterned glass types, solar coated glass, Low-E glass, low maintenance and Argon or Krypton gas-filled options.

Our standard domestic specification windows are typically glazed with 28mm DG units, Low-E glass with Argon gas. Textured glass, unless specified is usually Stippolyte. We can arrange specification according specific projects.[/vc_column_text][vc_empty_space height=”50px”][vc_text_separator title=”GLAZING TYPES” border_width=”10″][vc_empty_space height=”50px”][vc_media_grid element_width=”6″ item=”masonryMedia_ScaleWithContentBlock” initial_loading_animation=”none” grid_id=”vc_gid:1483561800900-a30fac2a-a35d-4″ include=”75631,75632″][vc_empty_space height=”50px”][vc_text_separator title=”TEXTURED GLASS” border_width=”10″][vc_empty_space height=”50px”][vc_media_grid element_width=”2″ item=”mediaGrid_BlurWithContentBlock” initial_loading_animation=”none” grid_id=”vc_gid:1483561800900-53f5f954-f73b-6″ include=”75586,75587,75588,75589,75590,75591,75592,75593,75594,75595,75596,75597″][vc_empty_space height=”50px”][vc_text_separator title=”TEXTURE GLASS (REPLACEMENT)” border_width=”10″][vc_empty_space height=”50px”][vc_media_grid element_width=”2″ item=”mediaGrid_BlurWithContentBlock” initial_loading_animation=”none” grid_id=”vc_gid:1483561800901-1e9e2c76-40c6-4″ include=”75598,75599,75600,75601,75602,75603″][vc_empty_space height=”50px”][vc_text_separator title=”PRIVACY LEVELS” border_width=”10″][vc_empty_space height=”50px”][vc_media_grid element_width=”2″ item=”mediaGrid_BlurWithContentBlock” initial_loading_animation=”none” grid_id=”vc_gid:1483561800901-9c6f4b04-8ce4-10″ include=”75604,75605,75606,75607,75608″][vc_empty_space height=”50px”][vc_text_separator title=”GEORGIAN BARS” border_width=”10″][vc_empty_space height=”50px”][vc_media_grid element_width=”2″ item=”mediaGrid_BlurWithContentBlock” initial_loading_animation=”none” grid_id=”vc_gid:1483561800910-5af14e38-9bd6-7″ include=”75698,75697″][vc_empty_space height=”50px”][/vc_tta_section][vc_tta_section i_icon_fontawesome=”fa fa-h-square” title=”Hardware” tab_id=”1481289250185-dc80b923-abe9″ add_icon=”true”][vc_empty_space height=”50px”][vc_column_text]

Whilst there are many good quality window and door handles available, our range of hardware has been meticulously tested to meet and exceed the industry standards which is reflected in the guarantees we offer.

Experience tells us that you require good value decorative products that you can simply t and forget. Our new Performance range ticks all these boxes. We have worked hard with the manufacturers to ensure high levels of stock are available at Synseal in all finishes and sizes, so as your business grows we can support you with the supply chain to deliver the products you need.


Visit our downloads section to browse our hardware range.

[/vc_column_text][vc_empty_space height=”50px”][vc_text_separator title=”Stock Hardware”][vc_empty_space height=”50px”][/vc_tta_section][vc_tta_section i_icon_fontawesome=”fa fa-thumbs-o-up” title=”Energy efficiency” tab_id=”1481289303661-75f21478-a554″ add_icon=”true”][vc_empty_space height=”50px”][vc_column_text]Combining energy-efficient frames and insulating glass is critical to deliver the required overall window thermal performance. Whether the BFRC Window Energy Rating (WER) scheme or the FENSA U-value route is selected as a route to technical compliance, Shield PVC-U window and door products designed by Synseal, coupled with sealed IGU products manufactured by Global Glass, are the ideal choice for a thermally efficient specification, giving peace of mind that installed units will keep on performing, year after year.

Our standard energy rating specification is B on Casement windows, A on Vertical Sliders (sash). We can also make arrangements for A+, B or C rating.[/vc_column_text][vc_empty_space height=”50px”][vc_text_separator title=”COST EFFECTIVE ENERGY EFFICIENCY” border_width=”10″][vc_empty_space height=”50px”][vc_column_text]

HousetoHomeThe WER system is based on a scale of A-G, with A-rated windows being the most energy-efficient. WER is a design simulation that can accurately calculate how energy-efficient a specified window will be in use. Up to 25% of heat within homes escapes through windows, so consumers are increasingly demanding A-rated windows to retain domestic heat and lower energy bills. A WER applies to a whole window (frames and glass), not individual components. A combination of multi-chambered PVC-U window frame profile, spacer bar and high performance glass will create the most thermally-efficient project solution.

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One of the benefits of PVC-U as a material is that it is readily and economically recyclable like all other thermoplastic materials. The primary aim of recycling is to elicit a net environmental benefit through reducing the use of primary resources and/or diverting resources from landfill.

We pride ourselves on running efficient fabrication processes with scrap levels under 5%. All off-cuts are allocated in special mesh bins before being sent to our recycling partner.

End of life PVC-U windows are also collected from our installers and specifiers and given a new lease of life via recycling. All of these types of waste can be recycled into energy efficient new windows.

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Visit our downloads section

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