If the sewer pipes are not cleaned regularly, roots may infiltrate the piping system which causes the drains to be blocked. It is commonly found in older homes with decayed piping systems. And the best way to prevent this is to replace the older piping system with a PVC drain pipe. So, it would not be necessary to cut down the trees.
If you would like to check by a licensed plumber, give us a call at 131091 were open 24/7 or visit our website. We serve areas in Canberra, Newcastle, Central Coast, and Hunter Valley.