It is important to get your chimney cleaned frequently as many Insurance companies will no longer pay out for chimney faults/fire damage, unless its been swept and maintained by a professional Chimney Sweep. 

By not having your chimney cleaned it can cause complications not only for your fire but also your health as it can cause skin irritation and respiratory problems.

You should have your chimney cleaned frequently as it can be responsible for a high percentage of house fires across the UK.