I have attempted to hire professionals for 2 separate projects and figured Id try Thumbtack. They claim you will get up to 5 quotes within 24 hours. The first time was within 24 hours, but it was one company contacting me. The second time, was 48 hours and again, only one company contacted me. And they clearly were not interested in helping anyway.
I recognize that technology and "advisor" sites are supposed to make it easier, but I have found the opposite to be true. Stick with research and talk to a couple companies and obtain quotes on your own. Thumbtack isn't getting it done.