I have a splendid book on labor and material costs, but nothing that fits your job.
If I were you, I would draw out in detail what I want done. Be specific on each division of labor, ie, carpenter, painter, electrician, plumber, inspection fees, and concrete.
have this written down and presented to three separate contractors and obtain their bids. With three at hand, you should get a good idea of what all entails.
Make sure that all estimates are free.
This is the best way, but you must present all the work the same way to each bidder to make the process work right.
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