We used Black Mountains plumbing after our oil boiler broke down during a cold snap and our previous heating engineer left us in the lurch. James and the team identified the issues, presented options and rough costs. We decided to replace our boiler (long overdue) and the guys prioritised our job to get our heating back up. They ended up also having to sort out a multitude of sins from whichever cowboy originally installed the system. Throughout they were fabulous and showed an in-depth knowledge of their field of expertise. Heating system is now working properly for the first time since we bought the house!! We won’t be going anywhere else in future. I strongly recommend them