Tip number one: choose the best plumber you have in the area. There are plumbers who have only reached the level of an apprentice, there are also tradesmen, and there are also official plumbing teachers. Keep in mind, when choosing your company, that the journeyman plumber is the ideal choice since he has more years of experience, and this will translate into better results.
Tip number two: On the Internet or in Yellow Pages. Today, all kinds of jobs and services are advertised online, and you can find your next plumber using only the internet. If you are more traditional, turn to the Yellow Pages that you have stored in your living room, because surely it will include several workers in your list of plumbing.
Tip number three: ask others. Ask, ask and ask friends, teachers, classmates, neighbors. Surely more than one of the people you have around you have met the plumber who you want to call, and you can have the same fate as them. This is especially true in smaller towns and cities. If you were looking for a company in a big city like Charlotte plumbers for example then it would be harder to decide if they are any good.
Tip number four: avoid additional expenses. Typical of plumbing companies, is they usually require additional payments that will be quite heavy to your pocket.
Tip number five: Ask how much it will cost you. Before agreeing to work with the plumber you have chosen, ask for the budget first and make sure you know, for sure, how much the repair or repairs will cost you. This way you will avoid last minute surprises.