This company is all sales and no service. The customer service line of their switchboard frequently timed out on hold after 2 hours while I dealt with the many issues with the boiler they installed for me. I only ever got through to the same one customer service rep. Who knows if they have more than one handling their national customer service. Of course the sales line always got through instantly to one of their many sales staff. First appointment they made, they cancelled by phone at the time the were supposed to arrive at the door. At the rearranged installation, the engineers in attendance barely demonstrated working knowledge of the kit they were installing, made a pig's ear of the brickwork they had cut through to install the condensate pipe, and left the installation lacking several of the promised features of the quote. When I provided a signature to confirm which parts of the installation didn't require remedial attention, they copied it onto a "certificate" declaring my full satisfaction with the complete job and used it to bill the finance company the full quoted amount. Efforts to make right any of the numerous problems with the job they did were stalled and stonewalled, and I had to go to court, where the District Judge agreed their conduct had been appalling, before I saw any redress for making the mistake of dealing with this company. They like to use the term "5 star service" in a lot of their marketing materials. To say this is an empty claim would fail to capture how actively poor their service has been.