I realize he used part of his day. He could have started at 8 am, though, and finished at 11, so that argument didn't work too well for me. I provided all of the materials, including grout.
I ask because I have run a PR
agency for thirty years, so I am not unfamiliar with fees for service. We will sometimes use a per diem fee (same as day rate) but that's only when we know we're providing a day of work....7 to 10 hours.. I would have cut the fee in half for any client we only did 3.5 hours of work for. We also review the job beforehand to determine the cost. After years of doing work, you understand how long something will take, even if it requires multiple employees. He, also, looked at the job.
I probably will get knocked over by you folks here for this question to him...but I did say to him that if I was being charged for the day, couldn't he do a little more work? I had other tile work he could have worked on..even if for another hour or two.
At that point, I was told "Well, yeah it was a day rate but it was for the project. So, more work will cost more even if I stay right now and do it."
Boy, that's sure different from how agencies bill for their hourly labor and materials.