If you are a handyman then it would usually be recommended that you have liability insurance for the trade property maintenance and repair.
Whether you are a sole trader or a professional business trading in property maintenance and repair you should consider insuring your liability. The sort of things which would usually be covered by your liability insurance policy would be any damage you cause to someones property while working or if your actions led to the bodily injury of someone while you were working.
Failure to insure your liability could end up costing you alot more money than the small premium which the insurance policy would. For instance, injury liability claims can often be in the high thousands or if you were onsite and knocked over an expensive ornament while carrying your equipment inside then again you would be liable for the cost of repairing or replacing the item.