Designed to replicate traditional timber box sash windows, uPVC sliding sash windows from Four Seasons will provide you with a traditional looking sash window combined with the numerous benefits of uPVC. The Heritage system from Four Seasons has been developed following extensive consultation with conservation bodies and as a result sliding sash windows manufactured from the system are the most distinctive and authentic-looking PVC-u sash window available on the UK market.  Sliding sash windows from Four Seasons are available in a range of finishes and colours.
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Superbly engineered and of exceptional quality, sash windows will add real value and style to your home without sacrificing performance.  You will still experience the benefits of noise reduction, low maintenance, safety and security and energy efficiency – our Heritage system can achieve an A rating, the highest possible window energy rating (A rated windows).

Classic-style hardware and fittings and optional decorative horns replicate the traditional timber sash window to create a stunning finish.  Further attention to detail in the form of a deep bottom rail and optional Georgian bars add to a simply superior uPVC sash window. 
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