I have seen some of the conversations about 'that dirty grout'. We are a company that specializes in cleaning hard surfaces. Tile and grout being the main one, but there are many more. Some of the techniques discribed are ok, but very tedious. Very rarely have we found grout that is so dirty that we cannot clean it. Our system will leave tile AND grout looking new again and won't make the whole house smell like bleach! We truly believe in our process and have lots of customers that do as well.
I cringe when I hear of someone that is so frustrated with their floor that they start planning to rip it all out and start new. The relief on their face is priceless when they realize the money they saved by giving us a chance.