It can be a challenge to see Sub-floor damage wether is in the form of rot or unevenness. However if you feel softness or an area that seems unleveled, you may have an area that needs attention. Over the years rotted sub-flooring has been one of the leading causes of kitchen floor damage. Maybe due to previous water leak, same with restroom areas. If left unattended-water damaged areas only grow in the surrounding area, let alone the growth of mold and mildew risk. If you have areas like this that concern you in your home to be accessed, please feel free to call or reach out to us through our contact link.