Sliding Sash Windows

Traditional period style windows for your home

Give your home a traditional look with our range of sliding sash windows, they are the perfect solution for new window projects, or traditional properties looking for cost-effective alternative to original timber windows with outstanding modern performance.

Our sash windows come in an uPVC finish that mimics the look of timber sash windows but have all the modern features that come with uPVC, A-rated energy efficient glazing and extra security.

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Modern technology with traditional look
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Virtually maintenance free
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A-rated energy efficiency
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Painted or woodgrain-effect finishes
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Easy to clean from the inside

Customer Reviews

Customer review quotation mark
Brilliant Windows have installed windows and doors at my home and a rental property I also own. They have always been professional and responsive. Their price has always been very competitive and always significantly less than the big national companies.... I always compare quotes!

Stuart Honey

Would highly recommend Brilliant Windows, who provided and installed bi-fold and French doors with a great service and competitive pricing.

Lucy Jarman

We had all of our windows recently fitted, this company was exceptionally professional from the outset and throughout. The Windows look fantastic and very well priced, all the staff were very friendly and professional. We highly recommend them.

Imogen Kemp

From start to finish everyone that I met and spoke to from this company were incredibly professional, friendly and were always available to answer any queries I had. I had all the windows in my home replaced as well as a new conservatory which has brought new life to the property. The fitters were great and left the area as clean as possible. No hesitation in recommending Brilliant to anyone.

Daniel Smith-Rowe

Quick reply to my initial enquiry, they were very efficient which was vital for me as I was running on a very tight schedule. The price was very competitive and the quality of the windows was top notch. Special mention to Kunwar who I met at the showroom, he gave me a lot of guidance and was very informative. Overall the customer service was outstanding. Would definitely recommend Brilliant to anyone looking to change their windows.

Eva Harrison

Thank you for the service provided! A nice job done very quickly and neatly. Highly recommended for all window fittings and fixtures. Product was exactly as I ordered and the work was carried with a high level of care and professionalism. 10/10

Vishal Harsha

Request a callback

Let's talk if you have any enquiries regarding your property. So don't hesitate to reach us anytime.

0193 298 8182
bhilondon@gmail.com
58 Nursery Rd, Sunbury-on-Thames TW16 6LG, UK
CERTASS registered window and door installer logoCortizo aluminium systems partner logoSchueco window and door systems partner logoMorley Glass glazing supplier logoPilkington glass manufacturer logoREHAU uPVC window systems partner logoSelecta hardware supplier logoVS complementary hardware logoSmart architectural aluminium partner logo

Sliding Sash Windows FAQs

Are your sash windows suitable for period properties?

Yes. Our sliding sash windows replicate traditional aesthetics while delivering modern double glazing and smooth operation.

Do sash windows improve insulation?

Modern sash units with double glazing and draught seals significantly outperform original single-glazed timber sashes.

Can sash windows be tilted for cleaning?

Many of our systems include tilt or easy-clean features-specifications are confirmed at survey.

What materials are sash frames made from?

We supply uPVC and timber-effect sash solutions depending on your property style and budget.