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Basic or comprehensive renovation

Over time sash windows become weathered and loose in their frames due to wood shrinkage or building movement, which can cause rattling.


Sash windows also use a weights system to allow the windows to lift and fall with ease. To enable this movement there is a small gap between the sash and the frame which can often cause draughts, rattles and heat loss. Often people fix or paint their windows shut as a solution. However, this goes against the original function of a sash window, which is to maximise the airflow into a property when open using an equal gap at the top and bottom. By separating the air flow, the cooler incoming air through the lower opening flushes warm air out of the top opening.


A basic renovation requires your sash windows to be taken out of their frame with any build-up of paint on the sashes and/or frame removed. The sashes are then re-shaped to fit the frame and re-balanced with new sash cord fitted to enable their smooth operation. If extensive rot is found, sections of the sash window’s sill, mullions or mouldings will be replaced. We always match the historic profile of the existing timber.


A comprehensive renovation includes the above plus the replacement of all sash window furniture in the style and finish chosen by you from our collection. You can choose from a range of styles including brass or polished/satin chrome.


In extreme cases of disrepair a sash window may be beyond renovation and may need to be replaced entirely. We offer a full sash window replacement service, with your windows measured and manufactured to matching profiles and mouldings crafted by our trused and professional joiners.




Where salvageable, original sash windows should be renovated rather than replaced. It's a common misconception that rotten or damaged sections of sash windows require a full replacement, when often a simple renovation is all that's required