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Plumbing

Installation of new boiler

Anonymous user 28/02/2024 - 3.18 PM

hi there. I currently have a dispute with a building company. They were contracted to do an extension including supply and fit of new boiler. The old boiler was on the ground floor right wall. The new boiler is on the ground floor left wall. They have competed the work but about a year ago we found damp on an internal wall near the new boiler. To cut a long story short the issue was found to be a leaking elbow joint that was connected to a blue pipe that was installed by them. The builder is now disputing that he even installed the blue pipe and is saying that we must have had someone else install this pipe. He keeps referring to no record of a 'new water mains installation'. However I don't believe that a new water mains was installed rather he connected up the blue pipe to the existing water mains. We still have the original stop cock that services cold water to the first floor and another stop cock that services the new boiler. My questions are: 1. Would connecting the new boiler (at a different location) just involve connecting the blue plastic pipe to the existing water mains connection? 2. Would this cost just be included in the cost of supply and fit of the boiler?

Are you a tradesperson and able to answer this question?

1 Answer

Hydro Install

Rating: 4.9 out of 5

Southfields, London

Blue pipe is called MDPE (Medium-density polyethylene) and it's suitable for use below ground on cold water services because of it's specification. It goes from outside stopcock (which belongs to Thames water or other water supplier) to your stopcock. Old installations usually have down-pipe (pipe described above) made of lead which has very small bore (around 12mm) and restricts flow rate. To increase flow rate and pressure on big demands it's good idea to replace it for new MDPE which has 25mm or 32mm diameter. 1. New boiler installation doesn't require digging new main pipe UNLESS you have water pressure less than something around 0,7bar which is really joke and you would find that's not right straight away. 2. That's totally separate job and rather than done only in your house it's actually a lot of work at front of it (going through concrete, foundations etc.)

Answered11 April 2016