Today Rob and Ryan take out a leaking internal Grant Combi oil boiler and replace it with an external Grant Combi, and the job was not at all straightforward!! It turned out to be a very long and exhausting day with lots of challenges thrown in along the way. We hope you enjoy this weeks video, and please like, comment and subscribe if you haven't already :) Have a relaxing weekend whatever you're up to, and until next week, stay safe!