Ask if they offer protective treatments like carpet protector and grout sealant, including longevity, upkeep pointers

https://mega-wiki.win/index.php/Tile_and_Carpet_Cleaning_Services_List:_From_Grout_Cleaning_to_Deep_Steam_in_St_George_14201

Ask if they use protective treatments like carpet protector and grout sealant, including durability, upkeep pointers, and warranty information.