You want the best work, not the best price, says Lupberger. Contractors and subs who charge more are licensed and insured and should take the time to keep the homeowner informed every step of the way—all of which costs money. Watch out for a "low-bid guy" working out of his truck, says Thompson, adding ominously, "I've cleaned up many jobs." Angie Hicks, of the consumer-to-consumer referral service Angieslist.com, recommends at least three bids and close scrutiny of licences, insurance certificates, and other fine print.