I'm have a floating extension built, it's early days. The builders have put up the columns & started to build a load-bearing wall but when I came home & saw the work, it didn't feel me with much confidence. I've attached pictures. There are gaps in the mortar & the fact they have used rubble for some of the brick work can't be right. I wanted to ask people with more knowledge about this than I have. Should I stop this job & find another builder?
Thanks in advance for you're help.