Ask around. Ask your friends, ask your neighbors and get referrals. Nothing is more powerful than the testament of someone who has had a local plumber in their home and can speak to his/her capabilities.
If your service provider has adequate knowledge and training on the topic, this might be a good time to find out more about energy alternatives. He may be able to install low-flush toilets and lower-output shower heads. This is also a good time to talk about solar thermal water heating, though perhaps before the roofer is finished up top.
You can then possibly fix the drain yourself with over the counter products. You can then learn how to prevent the drain problem from ever happening again. Another step is to purchase all your own plumbing supplies. If the plumber does not have to leave to get an item that you already have, this will lower the amount of money you will have to pay them. If you do have to call the professional, make sure that you check everything that involves your drain leak in your home from dripping faucets to clogs. This way when he arrives, you can have him look and fix everything that you are having a problem with. This will keep from spending the money to call him again.
Check on the plumber's licensing and insurance. You can ask about this over the phone before you even make an appointment. If the Trustworthy plumber, or his representative on the phone, cannot provide the master plumbing license number quickly and easily, that's your cue to move on.
Third, if you dissemble things, do you know how to put it back and not cause further damage? This is something that commonly happens. Some people attempt to fix the problem and end up causing a lot more damage! Then they try to do something else, which causes even more problems and by the time they call the Local plumber, the problem is much worse and now, they not only have to pay for the service but may even to pay a higher amount for the double repair.
There's water all over the floors and the basement is flooding, it is time to call someone to help with your plumbing situation. With water going everywhere, you don't have time to look around and figure out what happened and how you can fix it. When a problem arises that creates damage to your home or the area around it, you want to make the call for help. Let an expert come in, attempt to stop the flow of water, and begin to diagnose the problem.
5- Gas leaks: When smelling gas simply evacuate the building. Gas leaks do not lend themselves to D.I.Y repair due to their deadly nature in the wrong hands. Once outside the home call in your emergency plumber or Gas Company. You can and under professional guidance attempt to turn off the gas meter at the control valve.