Excellent service on all fronts, from initial contact to follow-up to make sure service was what we wanted/expected. I have managed the building for more then 10 years and we always had grout issues. We were consulted by another company whom stated once they seal the grout we can’t scrub and they only give a 1 year warranty. D’Sapone® warrantied their work and told us we couldn’t damage the 2 part sealer they use.