Nigel, the engineer that came out to suss my boiler system was great, he really went the extra mile to make sure that the boiler system that was being put in would be the right one. Sadly he has been let down by the rest of the company. The first installation appointment was for the 24th of April. This was cancelled due to the engineer being sick. Fair enough. The second installation appointment was for the 13th of May. I had taken a day off of work. Around 1030 when no engineer had shown up I decided to give Impragas a call. They had cancelled the appointment and failed to notify me. They had the cheek to tell me they had called me twice the previous Saturday. They did not and I am happy to post my call records. We rearranged for the 25th of May. Today, on the 22nd, they called to say they were going to have to cancel the appointment and couldn't fit me in until early June. I will not recommend this company. They are useless. You'd think that a third appointment for a customer would be a priority. Turns out it isn't. I'll find someone else to do the work. Edit: After seeing this they decided to offer me a £100 discount. Given the total cost of the system and the hassle they have already caused, I'm not prepared to take the risk and so declined.