Leak Detection Croydon

Croydon is large enough to hold three housing eras and each one fails differently after dark. The Victorian terraces of Thornton Heath and South Norwood are mostly split into flats, sharing one rising main and one stop tap between households who may not have each other's numbers. The post-war semis of Shirley, Selsdon and Coulsdon behave like any suburban house, with the isolation point under the kitchen sink or in the front path. Central Croydon is the odd one: a cluster of tall residential buildings, several of them former offices converted under permitted development, where pipework was routed into an existing frame rather than designed around flats. In those buildings the service routes are not where instinct says they are, and overnight cover varies from a staffed desk to a voicemail. The borough's geography adds one more factor. Croydon runs from dense inner-suburban streets in the north to properties on the chalk slopes at Coulsdon and Sanderstead, and the higher, more spread-out parts of the borough tend to have longer private supply runs and greater distances between a house and its boundary. A leak on those runs shows up on the bill long before it shows up anywhere anyone would notice.