Concerns about structural work

Hi, I recently used rated people to hire a company to do renovation of my bungalow. There were 2 RSJ beams installed after taking down 2 load bearing walls. I know the specification of the beams used roughly but I am not sure if pad stones were used. The building company is not providing me padstones details. I want to have peace of mind that beam installation is structurally sound. What should I do?