In Hexham properties, hidden leaks often trace back to pinhole leaks in surviving lead supply pipes in pre-1970 properties across hexham and the surrounding villages or undetected leaks along long private supply runs at rural farmhouses in acomb, corbridge, and stocksfield. Watch for a higher water bill, damp or warm patches on the floor, a hissing sound near pipework, or lower water pressure. Properties such as stone-built market town properties, Victorian terraces, rural farmhouses with private drainage and septic tanks, and historic buildings are worth checking often, since a leak can run for weeks before it shows.