Northern Gas Heating installed a boiler for me three weeks ago. They recommended and installed the wrong boiler- one underpowered for the house. in addition as it was a combi boiler it was incompatible with our shower. They came out to "fix" the shower and proceeded to break it. We then had a continuous leak from the shower which I had to get another plumber to fix as they couldn't come out.Once that was fixed another leak appeared which damaged our hall and landing. We had another independent plumber come out who was astounded at the poor quality of the installation. The old boiler was left abandoned in our back garden, there was standing water left in dog legs in the piping (which is apparently a health hazard) and the old water tank had not been removed. After a number of calls (the staff were always friendly and competent but there was never a manager around- they were either in Tenerife on holiday or on two hour lunch breaks at 5pm!) an "inspector" came out from the company. He confirmed that the wrong boiler had been installed and made verbal promises about everything that would be done to put things right. We have been chasing for the two weeks since to get them to confirm this in writing. When I get through to them now, having told them I will be going to the Dispute Resolution Ombudsman and the Financial Ombudsman and that I am cancelling under the Consumer Rights Act 2015, my phone, which works perfectly well during my 25 minute wait in the queue, mysteriously drops coverage so they can only hear half of what I'm saying and then the line drops. Am amazing coincidence. So in short do not be attracted by the competitive pricing, the Which Trusted Trader status and the string of logos and accreditations on the site. At first sight they do appear a professional and friendly outfit. Sadly this is not the case. Do not put your money at risk. I'll be posting this on as many review sites as I can find in the hope it protects others. Incidentally, Kiran who has posted on here was one of the front line staff who dealt with me. She was very professional and prompt in her responses so it doesn't surprise me that she has been badly treated by them. Kiran hope you find something better soon- you're better than this company.