When it's time to call a plumber, make sure you choose a trained, full-time professional and not just a "handyman" that does plumbing on the side. Use this checklist to find a professional plumbing contractor in your area.

• Does the plumber have a license? Check with your local Consumer Affairs Department to see if a license is required in your community. Most communities have some licensing requirements to ensure plumbing codes are followed.
   
• How long has the plumber been in business? The longer the better - usually. It takes typically three to fives years to establish a financially sound business.
   
• Have you called the Better Business Bureau? They can alert you to any outstanding complaints.
   
• Can the plumber show proof of worker's compensation and general liability insurance? If not, you will be liable for any construction-related accidents on your premises.
   
• Ask for a list of local references and then call them. Would they hire the same plumber again?
   
• Will the plumber provide a clearly written estimate and contract? Get everything in writing; the more professional-looking, the estimate and contract, the more likely you are dealing with a true professional.
   
• What are the plumber's problem-solving policies? Are guarantees offered on the work and the products used?
   
• Does the plumber belong to any professional organizations? Although it is no guarantee of the quality of a contractor's work, it may tell you something about the plumber's commitment to the industry and profession.