You will always provide a quote for each project according to your rate.
At the beginning of every project, after understanding what the customer needs in terms of the number and type of devices to be installed, you will provide a quote, we will do the same for our services, and we will either combine both quotes into one or share both quotes with the customer (more info about quotes and invoices in this question).
Once we have agreed on the details with the customer and confirmed availability with both you and our team, we will start the project.