Consumer Tips for Choosing a Plumber or Gas Fitter Hire a licensed professional. Or, do your own verification on the internet at our web site . A master or journeyman plumber's or gas fitter's license type and number must be shown on any sign, listing, or advertisement. To prevent problems down the line, be sure the plumber or gas fitter carries liability insurance. Get at least three estimates for your job.
Competition promotes fairness.
Call several companies. Get referrals from friends, family or neighbors. Contact a trade association for a list of member companies in your area. Agree in writing to the scope and price of the work to be completed. The agreement should list all work to be performed, the type of materials to be used, rough and finish completion dates, permitting and inspections, and the type of warranty on materials and workmanship.