Spiral sash balance springs are a fairly recent addition in the aid of equalizing the weight of a double glazed sliding sash window, they are an inexpensive way of achieving the smooth operation of any sliding sash window, new or old.

The springs are very easy and quick to fit and exchange, unlike traditional sliding sash window waxed cord, and due to the fact that the spring balance can be adjusted in situ, they make a very good economical alternative to sash cord and cast iron or lead weights.

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• Adjustable balances allow you to adjust the tension for specific weights.

• Allows installers to optimally match the strength of the balances to a broad range of sash weights on site.

• All balances are provided in matching pairs.

• Available in differing lengths and strengths to suit all sliding sash windows.