All the latest from the Concrete Protection Company blog
August 9, 2018
If the grout is extensively damaged - if it is sunken in, loose, cracked, crumbling, full of holes, brittle or hollow like in the images below - remove it. There are many power tools that can be used here, but you can do this job by using a grout rake or suitable metal tool. When the grout is removed, vacuum or sweep up the dust and then apply new grout.