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Conservation Windows, Double Glazed in uPVC

Conservation Windows combine the sought-after aesthetics of traditional timber with the exceptional modern performance of uPVC. Using our EcoMAX Glass™ double-glazing, conservation windows will improve the insulation of your home. We offer a Conservation Flush Sash and Conservation Sliding Sash to authentically replicate traditional timber.

Both offer an attention to detail and design that faithfully reproduce timber windows, with a choice of colours and wood effect finishes available and window furniture styles to complete the look you want.

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Sliding Sash Windows

Aesthetically Approved

Window styles that are approved in the strictest of conservation areas

Traditional Look

Frames that replicate an authentic timber look with all the benefits of uPVC

Energy Efficient

Frames and glazing combine to provide you with an A-rated window that will keep the heat in

What are conservation windows?

Conservation windows are made from modern uPVC. Unlike normal uPVC windows, however, they have been designed to faithfully replicate timber. Our conservation flush sash has been specifically designed so that the opening sash of the window sits flush with the outer frame, giving a unique sleek and seamless appearance.

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Thanks to its traditional joinery methods, our conservation sliding sash features authentic timber-line astragal bars, a slim 35mm meeting rail and an authentic deep cill. In keeping with traditional aesthetics. If you want to improve your home with windows that look like authentic timber but performance as a modern window should, don’t hesitate to get in touch.

Why choose uPVC conservation windows?

Accepted in conservation areas

Our conservation windows are so authentic to real timber windows, we can install them in even the most sensitive conservation areas.

Exceptional thermal insulation

Our conservation windows attain A++ ratings with ease.

Superior security

Complete with secure multi-point locking and able to last up to 35 years, our conservation windows incorporate a variety of secure features such as standard.

Low maintenance

Unlike real timber, our uPVC conservation windows offer a maintenance-free design that won't rot, crack, warp, or fade.

Sustainably sourced

Our conservation windows come with EcoMAX Glass™ double glazing as standard and are fully recyclable.

  • Styles
  • Colours
  • Glazing
  • Frame Options
  • Furniture
  • Styles

    Colours

    White

    White

    Clotted Cream

    Clotted Cream

    Pearl Grey

    Pearl Grey

    Chartwell Green

    Chartwell Green

    Elephant Grey

    Elephant Grey

    Slate Grey

    Slate Grey

    Slate Grey Grained

    Slate Grey Grained

    Basalt Grey

    Basalt Grey

    Anthracite Grey

    Anthracite Grey

    Anthracite Grey Grained

    Anthracite Grey Grained

    Black Brown

    Black Brown

    Steel Blue

    Steel Blue

    Racing Green

    Racing Green

    Ruby Red

    Ruby Red

    Turner Oak

    Turner Oak

    Irish Oak

    Irish Oak

    Golden Oak

    Golden Oak

    Rosewood

    Rosewood

    Mahogany

    Mahogany

    Walnut

    Walnut

    Dark Oak

    Dark Oak

    Glazing

    Our conservation flush sash and conservation sliding sash windows are available with both ECOMax double glazing and Comfort Glass and we can also offer a range of textured and patterned glazing for added privacy or decoration. The benefits of upgrading your glazing are truly limitless – it will make your home more comfortable, help to reduce energy bills and enhance your home security thanks to toughened glazing options.

    Taffeta

    Taffeta

    Stippolyte

    Stippolyte

    Oak

    Oak

    Pelerine

    Pelerine

    Florielle

    Florielle

    Minster

    Minster

    Mayflower

    Mayflower

    Contora

    Contora

    Charcoal

    Charcoal

    Chantilly

    Chantilly

    Digital

    Digital

    Everglade

    Everglade

    Frame Options

    Choose the perfect profile for your finished window

    We have a number of distinctive styles of frame to choose from. The chamfered option is a contemporary, straight-edged style while the ovolo option provides a more traditional, decorative finish. Our flush option sees sashes that finish flush with the external face of the window.

    Ovolo Frame

    Ovolo Frame

    Flush Sash Frame

    Flush Sash Frame

    Chamfered Frame

    Chamfered Frame

    Furniture

    Stylish furniture to make your windows even more complete

    We offer a range of furniture for your windows to look the part. Whether you want the traditional look with monkey tail handles in a vintage finish, or contemporary brushed steel, our elegantly designed handles bring form to functionality and are designed to fit naturally into the user’s hand. You can also choose from our selection of window restrictors and pegs.

    Furniture Handle Options

    Window Handle

    Window Handle

    Monkey Tail Handle

    Monkey Tail Handle

    Pear Drop Handle

    Pear Drop Handle

    Furniture Colour Options

    Black Finish

    Black Finish

    Brass Finish

    Brass Finish

    White Finish

    White Finish

    Chrome Finish

    Chrome Finish

    Steel Finish

    Steel Finish

    Conservation uPVC windows bespoke to your home

    Our conservation flush sash and conservation sliding sash windows imitate timber and perfectly capture the look and feel of traditional wooden windows. Everyone is made to measure with furniture to elevate the traditional appearance. You can even incorporate decorative, frosted or etched glazing panels to make your windows even more individual.
    Our elegant flush sash windows come in a whole range of colours, or a variety of attractive wood effect finishes for you to choose from, including tranquil Cream, White Grain, and Natural Oak. Our beautiful sliding sash window finishes consist of popular wood effect finishes available in white, white woodgrain, cream woodgrain, light oak, Irish oak and rosewood, or you can get the exact window colour you want with over 150 striking RAL colours available.
    Not only do our flush sash and sliding sash windows authentically replicate the features of a traditional timber window, but they also complement more modern homes perfectly with clean lines and a minimalist appearance.

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    Close up of flush sash window
    uPVC flush sash window

    Why choose uPVC for your replacement windows instead of real timber?

    Timber windows have been highly prized for hundreds of years, but the performance of uPVC just can’t be ignored and is the reason its such a popular material for replacement windows. Not only does it provide excellent thermal efficiency and security like a modern replacement window should, but it is also the most cost-effective choice. Our flush sash and sliding sash windows can even achieve A++ energy ratings, the very best available on the market!
    The low maintenance requirements of uPVC are also attractive to homeowners. Unlike having to protect timber yearly with varnish, uPVC is finished in an anti-fade protective coating, so it doesn’t crack or fade, meaning all they need is an occasionally wipe down to remove any dirt and keep them looking new for at least 35 years.
    uPVC can also withstand the harshest elements thanks to being highly robust, while our uPVC conservation windows will heighten your security. Our sash windows are fitted with secure multi-point locking, sash fasteners that prevent the window from being opened from outside and in, and meeting rails eliminate the possibly of your window being picked or forced open. They have also been thoroughly tested to exceed security standards and are PAS 24 security accredited as standard.

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    Conservation windows for conservation areas

    One of the greatest challenges facing homeowners in conservation areas is fulfilling their desire to improve the performance of their home, whilst still preserving the important heritage aesthetics of the property. While most timber effect uPVC windows won’t be accepted in conservation areas due to their poor imitation of the appearance of timber, our flush sash and sliding sash windows have a detail that’s unmatched. From the outside, our sash windows are completely indistinguishable compared with authentic timber and have been accepted in hundreds of sensitive conservation areas where maintaining traditional aesthetics is crucial thanks to traditional joinery methods.
    Thanks to the original textures of real wooden windows and traditional window furniture to enhance its chic character, our uPVC sash windows are the most authentic timber-alternatives in the UK. They have been designed to not only retain a home’s beautiful traditional appearance but also provide the perfect modern performance from a window – retaining its exterior traditional appearance, whilst improving its energy efficiency and security with an exceptionally robust and durable window solution.

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    Full installation of sliding sash windows
    Full installation flush sash windows

    Upgrade to insulating wood effect uPVC windows

    The multi-chambered window frame profile of uPVC means heat is maintained thanks to several energy-efficient layers, while the same design keeps the cold air from penetrating the room. Our EcoMAX Glass™ double glazing matches any A or A+ rated unit for insulation and has comparable solar control properties. Incorporating two layers of modern glass that surround an argon-gas filled chamber and an industry-leading warm edge spacer bar achieves an optimum indoor temperature.
    Replacing your windows with our flush sash and sliding sash windows will help reduce your energy bills and live more sustainably. Comfort Glass is also available which, thanks to its Smart Low-E glass coating, stops 56% more internal heat from escaping and can achieve window energy ratings of A and U-values as low as 1.3 W/m2K, meeting and far exceeding all current UK regulations – making it the perfect alternative to triple glazing.

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    Ultra-secure uPVC timber effect windows in East London, Suffolk and Essex

    Windows are one of the most vulnerable points to your home which intruders look to target, with old, weak looking windows particularly inviting. Upgrading them is a quick and easy way of making your home more secure. Modern uPVC frames don’t crack, warp, split, or rot meaning they don’t weaken over time.
    Our timber effect uPVC windows include a variety of advanced security features as standard, including multi-point locking systems which bolt the window to the frame at several points, tightly sealed and robust beaded frames, and secure window handles. They have also been thoroughly tested to pass strict industry standards. And by upgrading to Comfort Glass, its robust built-in transparent layer makes it much tougher to break than standard double glazing.

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    Oak effect Residence 9 window interior

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      Multi-award winning company

      Here at SEH BAC, we’re proud to have won many prestigious awards for our products as well as our work in the community:

      Installer awards 2022
      G21 Finalist
      SEHBAC showroom winner
      Ultraframe designer winner
      Conservatory and orangery awards winner 2019
      NHIC 2018 Consumer confidence award
      G17 Installer of the year
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