Not in terms of the rules, which are the same everywhere. What it does change is the practicalities. Houses of that era tend to have solid walls in places, a particular position for the original flue, and pipework runs that were laid out for a very different system. Because so many of them share a layout, we usually have a good idea of what we will find before we arrive — but we still survey each property rather than assume.

In most cases yes. The things that decide it are where the flue can terminate safely, whether the condensate can be drained properly, and access for future servicing. Maisonettes sometimes need a slightly different flue arrangement to a house, which is exactly the sort of thing a survey establishes up front. If you rent, or the building is managed, we will also tell you what permissions are likely to be needed before work starts.

If there is a gas supply to the property, usually yes. It is a bigger job than a boiler swap because the whole heating circuit and radiators have to be installed from scratch, and the hot water arrangement changes too. We will check the incoming gas supply and meter first, since some properties need that upgrading to feed a boiler, and set out the full scope before you commit to anything.

Often, yes. If you are moving from an open-vented system, the loft tank and the cylinder in the airing cupboard normally come out, and we need to get to both. If you are replacing like for like, we may still need loft access for pipework or the flue. It helps enormously if those spaces are cleared before we arrive — it keeps the job moving and keeps your belongings out of the way.

Yes. We work throughout S5 and the surrounding north Sheffield areas, including Shiregreen, Longley, Parson Cross, Fir Vale, Page Hall, Wincobank, Shirecliffe and Sheffield Lane Top, plus the rest of the city. If you are nearby and not sure, just call us.