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Transform your home into a stunning tribute to the historic Victorian era with expertly crafted timber sash windows.

The Window Sanctuary is your go-to source for top-quality sash windows in Kent, including Westerham. Our skilled team delivers exceptional workmanship for superior protection and enjoyment of your home. With this traditional window style, you can elevate the appearance of your home while enjoying high energy efficiency standards and optimal insulation against winter draughts. Stay comfortable and warm all year round with our exquisite sash windows.

Enhance the charm of your home in Westerham with beautifully crafted traditional timber sash windows that exude history and elegance.


The Window Sanctuary specializes in designing bespoke timber sash windows to complement your Westerham home, creating a stunning visual effect and offering better insulation and security.

Experience a free consultation on traditional timber sash windows in your own home in Westerham, Kent with one of the The Window Sanctuary’s experinced advisors.

We will install beautiful timber sash windows that present a visual impact, and add a sense of elegance to your home.


Contact us today at 01959 565343 or visit our showroom to learn more.

Energy saving performance

Our timber sash windows are highly energy efficient with an impressive overall U value of 1.5 w/m2k. When paired with energy-saving thermafloat warm-edge sealed units, they can achieve an outstanding U value of 1.1 w/m2k. Our windows feature Q-Lon seals to provide maximum protection against draughts, and the ultra-tight lockable furniture is PAS 24-compliant. We offer a wide selection of high-quality fittings in various finishes that complement our windows.


A rigorous 5-stage process ensures that each of our products is protected and painted, and can withstand the elements with minimum maintenance.

Our method is:

Stage 1 – A chemical dip to minimise moisture absorption
Stage 2 – A chemical dip to protect against fungi, insect infestation, and mould growth
Stage 3 – Application of primer and undercoats using micro-porous products
Stage 4 – Spray finish first coat according to your colour choice
Stage 5 – Spray finish second coat

Micro-porous paints allow all timber fibres to be penetrated and to build up protection from within, unlike cellulose paints which form a skin on the outer face and require time-consuming treatments on a regular basis. To keep new products in pristine condition, we recommended a quick wipe down and a further coat be applied after approximately 7 years.

Windows for conservation areas

Our timber sash window products will sympathetically replicate the original designs and can accommodate high-performance, slimline, sealed units to satisfy the requirements of your local Conservation Officer.

 we install TIMBER SASH WINDOWS in westerham

Our Google Reviews

  • If you've ever built a house you'll appreciate how hit and miss glass contractors can be, but The Window Sanctuary stand out as reliable, good quality and easy to deal with. The guys turned up on time, worked really hard and did a fantastic job. I wouldn't hesitate to recommend this company.

    Rebecca Stiasny Avatar Rebecca Stiasny
    February 24, 2021
  • The team at The Window Sanctuary have been a delight to work with. They have given us really personal customer service, ensuring that every final detail works for us and our build and have listened to what is important to us (happy to be flex when we change our minds!). Quick to respond and offering a really consultative approach, alongside good value for high quality products, I would strongly recommend their service. I was really specific in what I wanted for bifold doors, wanting time achieve that much coveted Crittall appearance and they’ve made this work for us with a good quality option that doesn’t break the bank. What a find!

    Abigail Barclay Avatar Abigail Barclay
    January 20, 2021
  • We recently had a new front door and windows fitted. Very efficient service from start to finish with everyone extremely helpful. The fitter was very careful especially bearing in mind it was raining on the day of fitting. Would definitely recommend.

    Chris Shortman Avatar Chris Shortman
    February 23, 2021
  • Replaced front and side door plus a few windows, very happy with the quality, great sales experience and fitters were friendly. We had a small issue with the door which was quickly fixed

    Robert Francis Avatar Robert Francis
    February 9, 2020
  • A great experience with these guys from beginning to end. We had 2 windows replaced and had them altered to larger sizes. Also had 2 doors replaced, one to a full size which meant taking out walls and sidelights. A messy job but the team came in and within 2 days it was out with the old ones, all rubble taken away, and new frames in. The second team then came in to install the glass and the bars and make good the walls inside and out to a fine finish. Couldn't fault it. Amazing work. Would and have recommended this company to everyone who has seen and admired our new windows and doors. A++++

    Judith Monk Avatar Judith Monk
    November 18, 2020