Core Sash Windows

08/09/2025

A traditional London terraced house can look fantastic with aluminium windows and doors. The thin, sleek frames give a much more modern look while allowing natural light to flood into the rooms.

27/08/2025

A triple sash box can create a large opening, making any space feel bigger and brighter!

08/04/2022

At Core Sash Windows we only select TOP materials!

Visit our website to know more! Link in bio.

07/04/2022

Hi there! 👋

Is this a Core Sash Window or a painting?!? 🤔

Book today a free on-site survey!
☎️ 02033022060
📧 [email protected]

11/03/2022

👋 Hey folks!
Have a look at this stunning triple casement and to follow our classic Georgian style windows signed Core Sash! 🪟

Which one do you like the most?

BOOK today your free on-site survey!

☎️ 02033022060
📧 [email protected]

03/03/2022

Hi there! 👋
The Core Sash team recently installed fabulous Georgian Sash Windows in East London!
👍🏻 Yes, they are double glazed!
👍🏻 Yes, they are engineered Timber!
👍🏻Yes, you can customize them to your needs!

Call us today to book your FREE survey! Tel. 02033022060

19/01/2022

15/12/2021

Stunning job that we recently did for a very happy client in South London!⁠
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Please feel free to contact us with any queries you may have, or to book your FREE on-site survey today!⁠
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☎️: 0203 302 2060⁠
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💻: [email protected]⁠⁠⁠⁠⁠

13/12/2021

Our team recently installed double glazed sash windows to the living room and primary bedroom in a lovely house in East London.⁠
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We revealed the beautiful old shutter features that their tenants previously covered up by curtains and a secondary glazing from the 1960s 🤩⁠
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Photos by ⁠⁠⁠⁠⁠

08/12/2021

Core Sash Windows offer a professional, yet relaxed and friendly service. All our surveyors and sales representatives have years of experience in the double glazing industry and many of them have worked as fitters of double glazed sash windows and doors in the past so have real, hands-on experience with the product. ⁠
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They’ve designed our sash windows from scratch and gone on to successfully market those same sash windows throughout all the boroughs of London.⁠
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Enjoy being warm and comfortable!⁠
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call us: 020 3302 2060 ⁠
email us: [email protected]

01/12/2021

When should I change my door?

A door that’s hard to operate can be annoying at best. If you’re really unlucky you might find yourself locked out of your house. Repairs or draught proofing are an option, but can only go so far. Front doors are one of the main culprits of draught in the home, so it’s good to give it some TLC every now and again. Older doors also have less secure locking systems, which criminals are always on the lookout for. If your door is difficult to open, draughty or if you feel it may be insecure, it may be time to think about changing it.