web and android app development for webpage

I need a new app and website. I need you to design and build a website for my small business. My company Name is FLOEND PLUMBING SOLUTIONS We provide all types of plumbing services for apartments and offices maintenance as well as new Installation. As well Sale plumbing items. Here are the key points 1. I want my costumer to book the appointment online by the app/ webpage. 2. I want my costumer to order plumbing items from app/ web. 3. Customer can take membership for monthly or annual plan for their regular home checkup Things to remember: I should be able to add/ remove plumbing services and change their prices from my end easily Some more features after appointment get booked - Quotation making - Invoice Making I should be able to add/ remove store items and change their prices as well as change availability. I should be able to edit membership details as well.. ....... ..... ..... also customer should get live update of his order or service booked.