Neighbor last week had a chimney fire and the fire service were out for 3-4 hours putting it out and risking themselves on his roof (with ladders). He constantly has fires going for 10 months of the year.
Overheard him joking that it was probably because he hadn't had it swept in years and they saved him a job as they gave it a good sweep after putting it out.
I have mine swept every year even though I don't use the wood burner that often.
This guy was very negligent and from the sounds of it caused the fire himself. Why shouldn't he be invoiced for this?