Sash Window Services in London

We repair, draught proof and double glaze sash windows across London. Most jobs fall into three groups: sash window repairs, draught proofing and double glazing existing sash windows. Every job comes with a free site visit, a written quote and a five-year guarantee on our labour.

All our sash window services

Each card below links to a page that explains the work, the price and the questions people ask most, because we want you to see the detail. The services are listed in the order most customers need them.

How to choose the right service

Start with the symptom, not the solution, because a rattling window, a stuck sash and a cold room can each have a different cause. We always look before we recommend.

If the window rattles or lets in draughts, draught proofing is usually the answer. If it will not stay open or the cord has snapped, you need sash cord replacement. However, when several parts are tired at once, a full overhaul is better value than fixing one fault at a time.

Soft timber at the bottom of the frame points to a sill repair, while cracked panes need glass replacement. If you want warmer rooms without losing the original look, consider double glazing your existing sashes.

Some homes need more care, because every building differs. We handle listed building and conservation sash windows case by case. We also fit sash window locks and repair French doors. When a sash is beyond saving, we make replacement sashes to match the original.

Prices, areas and advice

You can check what each job costs on our price list, because we publish our standard prices. We cover all Greater London, and the service area page shows the boroughs we visit most. Our sash window guides explain repair versus replacement in plain English.

Still unsure? Send us a couple of photos through the contact page. We will tell you honestly whether repair, draught proofing or replacement is the right call, because the best fix depends on the cause. Then we will quote for it.