Northern Gas installed a boiler for me in October 2015. It didn't work from the outset and still doesn't. Dozens of phone calls and emails at the time and for months after installation. Person who installed it didn't finish job. I phoned and phoned and eventually was told that he was no longer with the company. Another engineers eventually came out and expressed horror at the state of the job. Then another long wait until they sent someone else out to sort things, who also expressed disgust but as they did not have checklist from original job, did not know what had/had not been done. A chemical which was promised to clear things never happened. The agent who I originally signed the contract with because he seemed honest and didn't try to hard sell me, told me that it was a 7 year contract. It turned out to be only two. When I questioned this they told me he had had a heart attack so they couldn't check with him. I hope he is ok. After months of trying to get them to come and sort the boiler, I gave up as my health was suffering. This will be my third winter with no heating. I have e.mails from the time I can forward to the company. Abysmal. Without a doubt, my worst ever experience with an organisation of any sort. An absolute nightmare. This was the branch in Scotland I was dealing with.