Prevent condensation and mould Check and top up your boiler pressure Bleed a radiator Connecting appliances Find and use a stop tap Replacing a sink plug and/or chain Fix a blocked sink Replace a toilet seat Unblock bath/shower drain Fill holes/cracks in walls Garden maintenance Find tips and tricks on how to easily maintain garden on the Royal Horticultural Society website. Oil a lock Follow this method from Replacement Keys to lubricate a lock and avoid issues of locks failing.