Fitting team were great. The customer services side was simply abysmal. I would not recommend Northern Gas on this experience alone. I repeatedly raised issues and was repeatedly told someone would call me back, no one ever did. This went on and on, into double figures. Each time I had to waste my own time on hold having to call them. I raised a formal complaint and was told I would receive a call from a manager but they didn't even bother to call me. It took the threat of cancellation to make progress. It remains a very disappointing experience in what was a stressful period of no hot water.