So you want a new patio or walkway, and you're doing your research to pick 3 contractors to talk to. After all, it is the smart and responsible way to go about having a project built. All that is great, but do you know how to look for the differences between the bids, installation methods and the services that each one will give you? What information is going to help you make the right choice? This can be very intimidating for anyone, but especially for someone not in the consruction field, familiar with building terms and methods.