It is difficult to give a quote without first seeing the particulars with the project. Roofing and siding are the exceptions.
To meet with them at their convenience. To ensure them that we are the right guys for the job. To make them feel comfortable in their choice and go the extra mile to please them.
I've been in the construction trade for almost 13 years. Trained as a trim carpenter and than roofing and siding for a number of years.