Anonymous wrote:I don't have a recommendation for a company - but I can give you some tips if you'd like to DIY. I just did our 1940 bathroom last weekend and it looks great - only took about an hour of elbow grease. Mix baking soda with a little water to make a thin paste, spread it all over the tile. Let it sit a few minutes then spray vinegar over everything. The reaction between the vinegar and baking soda will sizzle and foam a bit. Then use a scrub brush to really scrub the tile and grout lines. Rinse clean with a rag or mop - may take several passes. It made a huge difference.
This hasn't worked for me. I did an experiment. I tried that method (baking soda and vinegar and hydrogen peroxide) with a grout brush, water and a grout brush, and then Soft Scrub bleach with a grout brush. The bleach worked!
The baking soda worked just as well as water- aka not at all. The grout brush did all of the work.
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