Ah British Gas ! Years ago I moved from Eon to British Gas because they promised me to upgrade my electric unit, 10 years down the line, have they done so? NO; I had a vaillant bran new combi BG totally broke, one can still see the trace on the outside bricks, during a yearly check one of their engineers broke one of the pipes and water was pouring down, another engineer then came and put a label saying dangerous, they left me in the cold for more than 2 weeks during winter, I am an elderly, after their repairs it was never the same the combi wanted more water but when one opened the valved it then regurgitated by the outside overflow pipe, I only got 200 compensation. I now had to buy a new combi and no british gas will not touch it, I am now also leaving them. As far as I am concerned they are one of the worst organisations, full of pretentious claims with nothing to prove they are able.