How can I stop my chimney whistling?

We've just opened up two fireplaces in our new home and installed beautiful original surrounds for decoration only. But if there's even the slightest wind blowing, we get a horrible sound coming down them that keeps us awake. Can you suggest anything that will stop the problem? Noisy fireplaces are common, especially in older houses with odd-shaped chimneys, but there is a product that will stop noise and cut draughts and energy bills. Try The Chimney Balloon , an inflatable that blocks the chimney. Blow it up by mouth or with a cycle pump and remove and deflate it if you want a fire. It comes in small, medium or large to suit your chimney and costs from £18.99.