Startup Idea : fixmyhome

I used to have problems finding contractors to fix my toilet, lights or airconditioning at home. I have to search for directory websites and called each and everyone to ask for their prices. I will then start to compare the prices amongst other contractors. I hope there's an app that could allow me to state the problem I have with my home (eg my toilet sink drain is clogged), address of my place and the dates that I'm available. Contractors will also have this app. They can reply with an estimation cost and I will decide on which contractor I would like to engage and then click 'Engage Contractors'. They come to my place and fix it. Payment via the app. It's that simple.