Double Glazed Sash Windows

Upgrading from single to double glazed sash windows

Most single glazed timber sash windows are cold and draughty in the winter and people naturally want to replace them with something better than plain modern plastic double glazed windows.

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French Doors

French Doors West London

We’ve been installing French doors in London for almost 30 years, all of which have been custom designed and manufactured in our West London workshop. Our French doors are created to enhance the character, features and heritage of London’s period properties.

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Sash Balances

What is a Sash Balance?

A sash balance (also known as a spring balance) is a spring loaded device which provides counter-balance in box sash windows. Sash balances remove the need for sash weights, pulleys & cords and, as they are moving parts, need replacing over time.

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Benefits of Casement Windows

Casement Windows v Sash Windows

Casement windows have advantages over sash windows because they’re mounted differently. Being side-mounted and opening horizontally, casement windows allow more of the window area to be opened so more air to can circulate in your room.

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London Sash Window Company
1432a Clock Tower Rd, Isleworth London TW7 6DT

“We’ve recently had 12 large sash windows fully refurbished and have been extremely impressed by the quality of the workmanship, attention to detail and customer service.”


Mr C Smith, London

Reviews Sash Windows
Sash Window Company in London - Accredited
London Sash Window Companies Approved
Replacement Sash Windows
Sash Window Company - TGAS Registered
Double Glazed Sash Windows London
Sash Window Repair

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