Sash windows to be proud of – from Bygone

Sliding sash windows have a beauty and elegance all of their own, and lend a unique character to your home. At the same time, older windows can be temperamental, and require regular maintenance to keep them looking their best and working properly.

The Bygone sash window collection from Masterframe faithfully reproduces authentic sash features in modern materials. So now, you can enjoy the traditional look of sash windows, with all the contemporary benefits of energy efficiency, security, ease of use and low maintenance.

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See some of our work

See what our happy customers have had done recently. Take a look at these double glazing projects

Heritage Windows in Country House

This country house was finished beautifully with cream Heritage windows frames and a Georgian style....

Vertical Sliding Windows & Composite Door

These white UPVC vertical sliding windows and composite door were crafted in Georgian style to complete a traditional look. These windows allow full control of the...

Vertical Sliding Windows

This customer was looking for a bespoke fitting of vertical sliding windows. The clean, white UPVC finish give these windows a modern look and feel to...

Symphony, Harmony or Melody… authentic windows for every setting

The Bygone sash window range offers you hundreds of different choices of frame design, surrounds, glazing and finishes, so you can replace your existing sash windows like-for-like, or ring the changes with a new and different look.


Melody is Bygone’s entry-level sash window. Its deep bottom rail and continuous run-through sash horns are classic traditional features; but with its argon-filled double glazing, it offers the very best in modern energy efficiency performance, too. You can choose Victorian or Georgian bars; the internal beading has the timeless ovolo profile.

You can specify your Melody windows in white or antique cream woodgrain foil, or with painted colour-match frames to suit period settings. For more modern properties, it’s also available in gloss UPVC. There’s a wide range of glass options, too, including sandblasted, satin, etched or patterned glass for privacy, and toughened, acoustic or laminated glass for improved safety and soundproofing.


The most versatile window in the Bygone range, Harmony has numerous optional extras, allowing you to customise them to suit your property, or fit within a specified budget.

Like the Melody collection, Harmony windows have the classic deep bottom rail and continuous run-through sash horns. The main visual differences are the integral mullion and the deep ovolo internal glazing bead; you can also specify the meeting rail from the top-of-the-range Symphony as an option. Melody windows are supplied in white woodgrain foil finish as standard, but you have a wide choice of others options at extra cost, including antique cream woodgrain foil and painted colour-match frames. You can also choose glass with sandblasted, satin, etched or patterned privacy finishes, and Victorian or Georgian bars.


Sometimes, only the authentic look of real timber will do. It might be because you live in a conservation area and the planning office won’t take no for an answer. You may feel a responsibility to preserve the integrity of a period property. Or perhaps it’s simply a case of only the best being good enough. In which case, Bygone’s Symphony range of sash windows is the answer you need.

The Symphony is Bygone’s premier sash window, with every single timber effect feature fitted as standard. They’re finished in white woodgrain foil as standard, with antique cream woodgrain foil and painted colour-match frames available as extra-cost options. Sandblasted, satin, etched or patterned glass options offer privacy, with extra safety and soundproofing provided by toughened, acoustic or laminated glazing if required. You can choose between Victorian and Georgian bars, while the internal glazing bead is Bygone’s exclusive deep ovolo moulding.

Glazing is one of the most important aspects of any window.

It can be transparent or opaque, stained or coloured and can even showcase geographical patterns and fashion trends.

Glass can say a lot about a window, which in turn can tell you a lot about the property and its inhabitants. Traditionally, large panes of glass meant wealth, due to the complicated nature of glass production in the 17th Century. Smaller panes were often saved for shop fronts and included bulls eyes, the centre of the spun glass and the cheapest part.

Stained glass and overly complicated Georgian bar designs were similarly a sign of wealth in Victorian Britain and there are examples of this all over the country, but especially in the capital and more salubrious areas.

Glazing itself has had to change with the times and other qualities are now more important to the modern home owner. These include acoustics, thermal efficiency, security and durability, often dictated by ever changing building regulations and planning laws.

Double glazing

The industry standards for double-glazed sealed units is two panes of 24mm glass, with the gap between filled with the inert gas argon. Bygone uses this specification for its entry-level Melody windows. In the Harmony and Symphony ranges, the glazing is 18mm glass, withn a narrower gap filled with krypton. As well as giving a slimmer profile, this allows for the deeper ovolo internal bead, and a Georgian bar on the inside of the window.

Unlike our other windows, we don’t offer a triple-glazing option on sash windows, for the simple reason that there isn’t room to fit an extra pane of glass and retain the traditional slim frame and beading. Instead, Bygone ensures its double-glazed units always offer the very highest levels of thermal efficiency.

Glazing designs

Obscured or etched glass can be a stylish decorative feature and is fast becoming a popular choice among architects, designers and home owners. There is a wide range of patterns and levels of obscurity available, from the standard textured glass patterns to more expensive etched ranges.

There are practical glazing options on toughened, laminated and acoustic glass to make sure that your new sash windows perform in exactly the way that your property and situation require.

With certain Georgian bar designs coloured films give the impression of stained glass, or possibly incorporate your own refurbished stained glass panels inside new double glazed units. This is also sometimes possible with original leaded glass panes, but do consider the extra weight.

This allows you to preserve the glass design of your windows to match the neighbours and retain the period character of your property.

Colour options

Our range of colours allows you to have your replacement windows just the way you want them. For many homes, particularly modern properties, nothing beats the crisp, clean look of plain white UPVC, which mimics a gloss paint finish. But with modern production techniques, it’s now possible to produce frames that look and feel like just traditional stained timber – in fact, it’s almost impossible to tell that they’re actually low-maintenance UPVC.

You can choose your Bygone windows with or without a grained appearance, and in a huge number of ‘closest colour-matched’ paint options from standard industry charts – we can even colour-match to Farrow & Ball if you wish. You can have different colours on the inside and outside of your windows, cleverly applied so that only one colour is visible from either side when the window is closed. We can also supply your sashes and frames in different colours. For example, a black frame with white sashes is a popular choice; we’ve also created combinations of blue and white, and cream and maroon.

Our paint is specially formulated to be hard-wearing and avoid fading, so should never need repainting. Please note that standard household paints should never be used for painting UPVC surfaces.

The Window Company for the People of Sussex & Kent

When replacing windows in Sussex or Kent, you need to locate a home improvement company offering plenty of choice so that you get a design that ticks every box. At County, we have windows available in a variety of frame types, colours and styles; there really is something for everyone. The installation of windows will give your home a whole new lease of life so why bother moving? Just get improving.

From the first point of contact, right up until the fitting of the product, County can guarantee you products and service of the very highest order.

Energy Efficiency

Rising energy bills have fast become a key concern for millions of homeowners. The windows installed at a property have an essential part to play in keeping fuel costs down.  If you install windows without the energy efficient qualities as those from County, then the home won’t be as enjoyable throughout the year and your energy bills will be higher. Any of our designs can be built with energy rated windows – such is our enthusiasm for giving people exactly what they want. Whether you want a ‘C’ rated version, or the ‘A++’ rated variety, leave it with us.


At County, we’re all about peace of mind which is why we only work with windows and doors that are manufactured using the latest technology and techniques. Our products are beautiful to look at with exceptional performance across the board, excellent reliability and above all first rate security for your personal safety. You can rest at ease that you, your family and possessions are safe.

Noise Reduction

It’s not just intruders or inclement weather you want to keep out when considering replacement windows; you will also want to reduce unwanted noise from the outside world entering your home and disturbing your enjoyment. This is particularly pertinent in built up areas or near busy roads, but is also an important consideration for most new home improvements. All our products are designed and built with this in – our experts always know to consider this when guiding you about your options for your new windows.

Free Tailor Made Designs

For further information on the fabulous range of home improvement products available, simply request your free brochure online today!

Book a Design Visit

Our Windows Range

Envisage Flush Casement Windows

Flush casement windows are a great addition to the home, giving your home a sleek and polished look for years to come.

UPVC Windows

UPVC windows are incredibly popular both due to their hard-wearing properties and their easy to maintain surfaces.

Aluminium Windows

Aluminium windows add a modern appeal to any property and are incredibly hard wearing as well as easy to maintain.

Heritage Windows

Here at County we have a wide range of Heritage windows which will help to retain a classic appeal in your property.

Sliding Sash Timber

The design of our Conventional Box Sash Window reproduces as faithfully as possible the simple grace of English sash windows

Evolution Windows

Evolution timber-effect windows marry modern technology with old-world charm. Get a quote for your home today.

Bygone Sash Windows

If you believe that original sliding sash windows are one of the most beautiful window styles, you’re sure to love the Bygone sash window collection

Replacement Windows

Finding matching replacement windows for your home can be a pain, but you’re bound to find the perfect style in our extensive range.

Windows & Doors

The County range of windows & doors is extensive, so you’re bound to find the perfect option for you and your home here.

Thermal Windows

When the weather grows colder it can be beneficial to have thermal windows in your home, helping to boost your thermal efficiency.

Georgian Windows

The Georgian style of window frames is a classic one and they’re an excellent choice if you’re looking to update your home.

Bay Windows

Our range of bay windows will transform your home with easer and no matter your preferences you’re bound to find what you want with us,.

Triple Glazing

If you’re hoping to increase the energy efficiency of your home then consider installing some triple glazed windows today.

Energy Efficient Windows

Energy efficient windows are an excellent choice if you’re looking for new windows, helping to keep your bills low year round.

Coloured Windows

Coloured windows help to make your home stand out and present a uniformity across the entire external façade of your property.

PVC Woodgrain Windows

Our woodgrain windows are developed with the best modern materials, meaning they’re exceptionally durable with a traditional appeal.

Sash Windows

Sash windows are an attractive style of window, with a beautiful traditional appeal that will look great when installed in your property.

Tilt & Turn Windows

Tilt & Turn windows offer the opportunity to let fresh air into your property without opening your home up to the elements.

Casement Windows

Casement windows are a traditional style of window, featuring large panels of glass that permits lots of light at all times.

Timber Windows Stormproof Casement

Made from cross-grained, multi-layer engineered wood, our timber frames are immune to the warping and twisting

Timber Windows Flush Casement

Our Timber Windows are supplied ready finished with a hi-tech micro-porous stain, which is totally maintenance-free, and allows the wood breathe naturally

Double Glazing

If you need replacement windows in your property then double glazed options will prove a worthy investment for your home.