Why have your chimney capped !

When a disused chimney is left uncapped, it is open to the Irish weather. This can lead to damp stains appearing internally and over time it contributes to steady internal deterioration of the fabric of the stack.

If you leave the chimney completely open, birds will eventually nest blocking the chimneys, this will stop the ventilation in the chimney, leading to it own set of problems. Not to mention the dreadful unhygienic mess that nesting birds can cause and the difficulty of removing the nest. Damage caused by bird intrusions
is not covered by insurance.

By capping you are also reducing the ammount of heat that escapes up disused chimneys.