Time will start either at the retailer when picking up supplies or arriving to your home to start work. Depending on which comes first.
Materials
All materials required will be paid by you, the customer. I will create a materials list for you and go to the supplier of your choice, Home Depot, Lowes, Dunn Lumber, etc. to pick up supplies. Upon check out the salesclerk will complete a phone sales with you to purchase the supplies over the phone. You will receive a receipt via email from them and I will also give you the printed copy.
Or you may shop online to purchase the supplies to have them either shipped to your home or for me to pick up at the store, be sure they tag your purchase with my name for picking up.