I only waited a little over a week after picking my granite and paying the down payment to have the kitchen granite installed. The installation crew did a great job, the under-mount sink was secured nicely, and all the dust and particles were vacuumed up, NICE! There was a little problem with the holes for the faucet that didn't match the faucet I had purchased. I called Josh and he was at my house in 20 minutes and had the problem solved within a couple hours. That is the real test of a good company . . . when something goes wrong, how long does it take them to respond, Holland passed this test with flying colors. I am SUPER pleased with Holland Marble & Granite. Here it is almost a year later, went to Holland Marble, talked to Alan about replacing the original hard to clean marble top to a table I bought from a furniture store. Texted him the measurements, the NEXT day he called ready to take off the old top and replace it with a top to match my counter tops. Great, fast, courteous, patient service!!