A sash window that drops, feels unusually heavy or will not remain open often has a failed cord or an imbalance within the weight pockets. Cord and weight repairs can restore safe, smooth movement while retaining the original sash and case window.
Describe the problem and your Edinburgh postcode: request a free initial assessment or email hello@sashandcaserepairsedinburgh.co.uk.
Signs of a failed sash cord or weight system
- The sash drops as soon as it is released.
- One side rises while the other side catches or twists.
- The window feels much heavier than it previously did.
- A cord is visibly loose, frayed or missing.
- The sash will not open fully or a weight can be heard moving incorrectly inside the box.
- The window rattles because it is no longer properly balanced.
What should be checked?
A useful assessment considers more than the visible cord. The pulley, weight, pocket cover, sash grooves, beads and timber around the fixing points should also be examined. If a sash sticks because of paint build-up or swollen timber, replacing the cord alone may not solve the problem.
Typical cord and weight repair process
- Confirm the fault. Check whether the problem involves one cord, both cords, the weights, pulleys or restricted sash movement.
- Gain access carefully. Beads and access covers are removed with the aim of retaining sound original material.
- Replace and balance. Suitable sash cord is fitted and the weights are checked so the sash opens, closes and remains in position.
- Reassemble and test. Beads are refitted and the full travel of the window is tested.
How much does sash cord replacement cost in Edinburgh?
For budgeting, a single cord replacement is commonly shown on this site at approximately £80–£150 per sash, while a fuller cord-and-weight overhaul may be around £250–£450. Access, window size, damaged pulleys, missing weights and associated timber work can change the final figure.
See the complete sash window repair cost guide for current indicative ranges.
Related repairs
If the window also rattles or allows cold air through, consider sash window draught proofing. Dark or soft timber around the sill or lower rail should be assessed through the timber rot repair service. For a broader overhaul, visit sash window repairs and restoration in Edinburgh.
What to include with an enquiry
State how many windows are affected, whether the upper or lower sash is involved, what happens when you try to open it, and whether access is straightforward. Clear photographs can help identify the likely scope before the next step is arranged.