Q how do i know how old my boiler is? Whittaker road sutton surrey sm qg. Dump the hot water down the drain so that it can melt away some of that grime and any hardened grease if this method appears to work for the clog, continue doing so until you've got the drain cleared! Emergency after hours technician available. Do you need -hour cover in case of emergencies? We accept all major credit & debit cards.