New timber double glazed sashes fitted into the existing sash boxes in Kew

In this Kew home, SashWise restored original sash boxes and fitted new Accoya double glazed sashes, significantly reducing heat loss and improving thermal efficiency

Thermal Project Details

At this property in Kew, we fully restored the original sash boxes and fitted new Accoya timber sashes within them, with a slimline double glazed unit.

The yellow glow coming from the windows in the thermal image before the installation highlights the high level of heat loss through the original single panes of glass.

In contrast the darker shading of the windows in the thermal image taken after the installation depicts the reduction in heat loss and improved thermal efficiency as a result of the insulation provided by the new double glazed sashes.

It is also interesting to see in the after thermal image the continual heat loss through the glass of the front door which was not upgraded.

Thermal Project Camera
Dan and his team have been a pleasure to work with. Extremely knowledgeable and helpful, but in no way pushy in the decision making process and were very patient. The fitting team were genuinely a pleasure to have in our home. Tidy, clean, conscientious a very polite with our young daughter. The end product and craftsmanship surpassed our expectations. Our home is noticeably warmer and our new windows look fantastic. We would not hesitate to recommend SashWise to our neighbours and have already done so, with one neighbour already engaging SashWise to carry out similar work.

J. Baldry, Kew

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