About Sumner Windows
Energy-efficient uPVC and aluminium replacement windows, supplied and installed across Kent, London and the surrounding region.
Sumner Windows is a local window specialist supplying and installing high-quality uPVC and aluminium replacement windows for homeowners across Kent, London and the surrounding 30-mile region.
We focus on doing one thing well: helping homeowners replace tired, draughty or dated windows with energy-efficient, secure and attractive modern alternatives — and looking after the whole process from first enquiry to final installation.
What we supply
Our range covers uPVC casement, sculptured, contemporary, flush sash, timber-look and vertical sliding sash windows, plus slimline aluminium casement, flush sash and heritage steel-look systems. Every window is available in a wide choice of colours, woodgrain effects and powder-coated finishes to suit period and modern homes alike.
How we work
- Free site survey — we visit, measure accurately and talk through styles, colours and glazing.
- Clear, itemised quote — no pressure and no hidden extras.
- Professional installation — fitted by experienced installers, with interiors protected and all waste removed.
- Aftercare — low-maintenance frames and straightforward support if you ever need us.
Where we work
From our base in Greenhithe (DA9 9SZ) we cover Dartford, Gravesend, Bexleyheath, Sidcup, Bromley, Orpington, Swanley, Sevenoaks, Maidstone, the Medway towns and much of London. If you're nearby and not sure we reach you, just ask.
Planning a window replacement? Call 01322 464 547, email sumner@starlightweb.co.uk or use our contact form for a free, no-obligation quote.