Plumbing and heating in London
Notes on how the pipes, boilers and drains in London homes actually work.

Where to begin
Most plumbing problems are easier to deal with once you understand what's going on behind the wall. That's what this site is about. We explain how London homes are plumbed and heated, so you know what you're looking at before anyone picks up a wrench.
London housing is a mixed bag, and the plumbing reflects it. A Victorian terrace in Ealing has different needs from a 1930s semi in Bromley or a flat in Croydon. We've written about the things that come up again and again: leaks that hide until the ceiling stains, boilers that need replacing, drains that back up at the worst moment.
The aim is to leave you better informed — about how a central heating system actually moves warmth around, what the difference between a combi and a system boiler really means, and how to plan a bathroom that won't need ripping out in five years.

All guides

Plumbers across Croydon: what local homes actually need

Heating and pipework for Ealing's period properties

Bromley homes: drains, boilers and water supply outdoors

How a central heating system moves warmth around a home

Replacing a boiler: combi, system or heat-only?

Clearing and preventing blocked drains

Finding hidden water leaks before damage spreads
