Horrendous service!!! 2 years on and all I have heard err empty promises. Warning: DO NOT LET NORTHERN GAS ENGINEERS into your home!! They have destroyed my beautiful home!! My case is with the OMBUDSMAN currently. I was promised repairs and compensation for an installation gone terrible wrong beginning of last year. Since then all that has happened is managers have come out to assess and move promise repair and compensation but NOTHING has been done..! Since the installation my downstairs bathroom is unusable due an engineer breaking my bath. I had to build a shower room upstairs to be able to have a wash (cost just under £3000). My radiator has a pink sock on it since the installation due to leaks! The boiler pressure is unstable and I have to manually turn the screw to increase the pressure. I have wholes in my bathroom wall, damage to plastering and Northern Gas have not even made an attempt to address these issues. if you love your home PLEASE DO NOT TRUST NORTHERN GAS..!