Heritage / Flush Sash Windows

Front of house showing stunning new heritage window replacement by 21st Century Conservatories & Fascias

The Choice For Traditional Homes

Heritage windows are an excellent choice for any traditional property. Some of them have been specially designed for use in conservation areas. See below for the heritage window range we can offer.

Front view of new window installation with heritage Residence 7 windows.

Residence 7

The Residence 7 system is a unique 7 chamber window designed to replicate the 19th century flush sash timber window. With its flush finish inside and out, it’s the perfect choice for conservation installations.

With 14 colours to choose from, there is a colour to suit all home decors and individual tastes. Also available with a range of traditional and modern hardware options to suit your home.

Residence 9

The luxury Residence 9 window system is designed as a timber alternative that still offers benefits of a modern uPVC, making it ideal for period property renovations or townhouses. Due to its unique design, it’s easy to keep clean with no dirt traps.

With 11 classic heritage colours to choose from, there is an option for all tastes. Transform your home and replicate original heritage window styles and features with face mounted Georgian bars, authentic weatherbars/Mullions & traditional looking peg stays & handles. Alternatively, you can opt for a more modern finish with traditional style handles in contemporary colours.

Bonded glass & internal glazing, coupled with modern multi-point locking, provides the ultimate deterrent against intrusion, keeping your home secure and protected.


Infinity is a stylish high-performing timber alternative window and door range. The range replicates traditional timber windows with all of the benefits of uPVC. The frames are available in a range of hand-picked woodgrain finishes with an extensive choice of handles and accessories to suit the character of your property.


The Infinity window and door collection is manufactured using high quality Infinity profiles for the highest level of both energy efficiency and strength. Even the corner joints look like those on timber windows, creating a smooth joint rather than the corner welds typically used on uPVC window frames.

21st Century Conservatories