Timber Sash Windows Installed Across London & The UK

Including Chester, Oxford, Cheltenham, Cirencester, York, Bath and the UK

With over 20 years of experience, The Alternative Window Company specialise in maintenance free wooden sash windows, sliding and hinged doors. We have become the leading provider of made to measure timber sash windows with hundreds of installations across London, Chester, Oxford, Bath, Cheltenham, & Cirencester. All our wooden windows and doors are created by our skilled craftsmen and are virtually maintenance free.

Established in 1995 by John Tomlinson, Alternative Windows specialise in maintenance free, timber sash windows. One of the key benefits of our replacement windows is that they are easy to install and can be installed from inside into the existing frame. This means that our windows can be fitted by anyone with a bit of DIY knowledge.

Timber Sash Windows Installed Across The UK

Whether you’re a builder, architect, developer or homeowner in Nottingham, Cheltenham, Oxford, Bath, London or anywhere in the UK and Ireland, our low maintenance timber windows appeal to everybody – especially with hundreds of happy customers on our books.

We have a concentration of customers in London due to the unique architecture and preference of sash windows which can be seen in the various residential areas. We have dedicated estimators serving the whole of London, including Chiswick, Ealing, Fulham and Hammersmith.

With over 20 years’ experience we can offer advice on how to install sash windows and doors giving you the practical advice you need. We believe that we offer the finest range of timber and wooden sash windows in the UK so request a free estimate or give us a call on 0207 856 0521 today.

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Sash Windows

Our timber sash windows are virtually maintenance- free and require no painting. Available in a variety of styles and finishes our windows will not rot, flake or warp and our double glazed units have a 20 year warranty against breakdown.

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Replacement Window Inserts

Replacement sash window inserts are a cost effective, low maintenance solution to replacing tired and old timber sash windows. They can be installed into the existing frame from the inside, reducing mess, re-decoration or hire of expensive scaffolding.

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DIY Installation

Our replacement window inserts can be easily fitted by anyone with a bit of DIY knowledge as they screw into your existing window frames.

Why Choose Us?

  • Trusted major supplier of world renowned sash windows
  • Over fifteen years experience in the window and door industry
  • We work alongside builders, architects, developers, and homeowners
  • Many hundreds of happy customers across the U.K.
  • High quality products with a reliable and friendly service