Build a Website

We are a tradesman supply company - we supply tradesman for our clients. We have about 8 tradesman working for us, who own their own businesses - we just manage the work that they do. For those tradesman that already have a website, we'd like to be able to move their site to become a page on our site, and point their URL to our site. We have only one of these today - but we would like to be able to easily do this in the future. We would like our clients to be able to use the website to book a tradesman - and we would like them to be able to do this easily from their phone or tablet too. For new clients, we require a name, email address and telephone number as a minimum input to be able to book a tradesman online. They should choose a password too - so that next time they can log in, and be known by the site and us. We'd like to be able to download and sync these client details with our CRM - Outlook contacts right now, but Salesforce eventually. We want to easily update the content on the site. We will advertise our tradesman using photos and testimonials. We'd like clients with a log in to be able to write testimonials when they log in - we would like to check them before they post though. After the initial web build, we would like to pay for by the hour support of the site.