What a sash window repair can involve
Traditional sash window repairs may include easing a sash that has become difficult to move, replacing worn cords, improving draught-proofing and making good the timber before decoration. The right work depends on the window’s construction and condition. Forcing a stuck sash can damage the frame or glass, so it is better to find the cause first.
A visit can establish whether the window moves freely, whether the cords still carry the weight and whether the frame has signs of decay. If glazing, specialist joinery or substantial timber replacement is needed, that should be clear before the work is agreed.
Re-cording and easing a sticking sash
Sash cords connect the moving window to counterweights inside the frame. When a cord breaks or wears, a sash may become heavy, drop unevenly or stop staying open. Re-cording is usually considered as part of getting the window moving properly again, with the balance and operation checked as part of the repair.
A sash can also stick because of paint build-up, a swollen or misaligned frame, a damaged parting bead or a problem with the counterweights. Easing should not mean removing more material than needed. The aim is smooth movement while keeping the window secure and working as intended.
Draught-proofing and decoration
Draught-proofing can reduce movement of air around a sash, but it must be fitted without preventing the window from opening or closing. The condition of the meeting rails, staff beads and surrounding frame should be checked before a solution is chosen. Older windows vary, so one method does not suit every opening.
Once repairs are complete, preparation and painting protect the timber and leave a neat finish. Loose paint and damaged areas need attention first. Where a coating is of unknown age, it should not be sanded or disturbed until its condition and any relevant safety concerns have been checked.
Arranging a sash repair in SE London
Period homes around Upper Norwood, Crystal Palace, Dulwich and Sydenham often retain timber sash windows, but each frame has its own history of repairs and paint layers. Send the postcode and a photograph of the full window, plus a close view of the problem, to help arrange a visit.
Nova Coat & Plaster can discuss sash window repair and restoration alongside painting and decorating where appropriate. A free quote is given after seeing the job. If the window needs work outside the service scope, that will be explained rather than guessed at from a photograph.