Replace Shingles And Add Roof Vents. 10/10
I already had a list of requirements; flashings, ice and water shield along first row and paper the rest, put metal flashing in all valleys and ensure soffits were clear and of course clean-up. As I already had metal soffits added years before, Marchuk roofing suggested that to keep the cost down they would use lower deck air intake vents on all sides of the roof and replace the higher vents with new maximum capacity vents which were capable to handle the increase of intake air.
They were on time each day, worked late and when they cleaned up you couldn't know they were there. They were very friendly and would offer suggestions where I hadn't thought of doing.
The roof really looks impressive.