After professionally installing new tiles, the tiler and myself went to Home Depot to pick out grout. Based on the HD reps recommendation, I picked "the Cadillac" of grout which is an epoxy (glue) grout not a cement one that needs sealing.
The tiler never used the grout before and applied it as normal cement grout. Once dried, I had this shinny glare all over the tiles in blotches and specially around the edge of every tile where the epoxy grout was not removed properly.
After many hours of research, I bought 3 different types of chemicals (thinner, paint remover and something else) and got on my hands and knees for hours and days with no success.
I used homestars late at night to find tile and grout removers and called 2 guys and got the answering machine and left a message (they never called back) and then I called green and spotless where Alec picked up (late afternoon) and knew exactly what happened with my floor and how to fix it.
In all honesty I was nervous about someone operating on my new porcelain tiles but he assured me his years in the industry that he had the solution for me. So we set an appointment and he came over on the weekend.
From the start it was obvious he was an expert with his shoe covers and equipment. He told me if I wasn't happy with the results I wouldn't have to pay him and got to work. Within an hour my floor looked amazing and I couldn't believe he got all the glue off but didn't ruin my grout.
Alec is super nice, super professional, and really knows his stuff and didn't try to use my desperation to get more money as he have a more than fair price. Highly recommend!