Sliding Windows & Timber Sash Windows

Timber sash windows can warp, rattle and deteriorate in winter. They’re also expensive to replace and maintain.

Warmseal’s Vintage Collection of PVCu vertical sliding sash windows match the beauty and elegance of traditional windows, and are trouble-free, easily maintained, durable and efficient. Our white wood grain effect even looks like freshly painted wooden sash windows.

Going up in the world

Even better, our breathtaking Vintage collection is the UK’s ONLY sliding sash window that’s been approved under the police Secured by Design initiative, has a C window energy rating, an energy savings recommendation and also meets BBA endurance tests. All of which certify a minimum life expectancy of 20 years. No other vertical sliding windows have passed these tests.

All the traditional beauty of timber sash windows matched with all of the benefits of modern materials Trouble-free performance, minimal maintenance, and modern mechanisms that are durable, long-lasting and simple to replace or repair Absolutely no repainting Warmseal sliding windows offer higher energy efficiency, thermal performance and improved noise insulation

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