I believe this is exactly what you as a client should put the stress on so as not to have misunderstandings later. However, last time I repaired my eavestrough-gutter, the servicemen first asked me about this license. This is what competency looks like. By the way, our gutter has been installed so quickly, I have never seen people working in a team better. These guys at
https://www.maxima-aluminum.com/service/eavestrough-gutter/ are second to none. I understand now why they are highly rated because a professional company really cares for our customers.