I had called Harry Mercer on the recommendation of a friend. Right from the first phone call - they were professional, prompt and provided all information (detailled estimate) quickly. The day of the job - they arrived on time (7:30 AM)- with enough help to complete the job in less time than they estimated (finished by 3 pm).
They put plywood over the patio doors and tarps on the deck to catch all debris. When they were done - you could not tell they had been there. There was not a scrap of shingle, or a nail to be found.
I paid by credit card - and in less than a week from the time the job was complete - I had a detailed receipt mailed to me.
I would not hestitate to recommend them.