Case Studies
Handcrafted in Britain since 2012
Our Work Across London
From 2020 to 2025, we carried out 2,648 installations in London from a single window to 144 replacement windows. In 2025 alone, we fitted 1,260 windows and doors carrying out installations in every London borough. Here are a selection of case studies of replacement sash windows and doors in London.
We have included below a selection of the works that we have carried out. If you would like to see any of our work in person, please contact us and we will be happy to arrange for you to visit one of our previous customers.
Sash Window Case Studies
WSW began life as a family-run business based on Lavender Hill in Clapham. We could see that London homeowners with period properties needed something the market wasn’t delivering – high quality joinery that is expertly installed by proper carpenters who know the complexities of period properties in London.
The company is still run by Matthew and Nathan, who took over from their father Tony in 2015. Since then, we have grown the company and opened workshops across the South East of England to cope with ever increasing demand.
This growing demand far exceeded our expectations and it quickly became apparent that we had outgrown our South West London showroom. We moved to a large unit in Sydenham, South East London and since then have opened a new showroom in Fulham.