In order to ensure a successful flooring installation, you require a sound subfloor system. Any mistakes in the subfloor are likely to telegraph through to the installed floor and result in time consuming and expensive call backs. Inspect the subflooring carefully and be sure to correct any problems before installing finished flooring.
It’s always a challenge to get people with the right skills doing the right job on your construction site. But investing in education is well worth the time and effort because it’s always cheaper and easier to avoid problems than to fix them later.