I have not found such useful a website on getting quotes for jobs that require services from tradespeople. J and I love it! I will have to remember to ask J on where we are now on our quest for the right plumber.
It's a portal for tradesmen to easily look out for jobs and respond to them. Best of all, homeowners can place feedback! It's a fair stage for companies and self-employed tradesmen.
If you have a house job, go to Builderscrack.