Most like-for-like combi swaps take us 2 days. Changing the type of system, or moving the boiler, takes longer. Here's what happens, and how to get ready.
Sometimes, but not usually. A service keeps a working boiler safe and efficient. If something has stopped working, you need a repair visit instead. Here's how to tell which to book.
If it's cold at the top and warm at the bottom, almost certainly. Bleeding lets the trapped air out, takes a few minutes, and all you need is a radiator key and a cloth.
The numbered dials on the side of most radiators. Each one senses the room's temperature and turns that radiator down when the room is warm enough, so you heat rooms to suit how you use them.
Home / Guides / Eco mode on a boiler Guide: running costs 21 September 2026...