Impra Gas, You're fired!! Went from bad to worse. Engineer had to be thrown out at 11pm as he was contracted to complete in a day. He messed up kitchen to point where we were sent a handyman at Impra Gas's expense to repair all broken kitchen tiles. (Wept when I saw it. We had a leak from the NEW boiler which I didn't notice until the morning. He rushed so madly he put the 3 way valve in back to front and after trying to tell us it wasn't their responsibility that we could get no hot water ,they have finally after 3 weeks sent someone to correct it. Sorry but I cannot recommend this company. They are full of promises. They are the most expensive quote we received which we mistakenly took to mean quality. For a moment I thought I was the special guest in an episode of cowboy builders. Steer clear!