First and foremost you need proof that the prospective Loodgieter Amsterdam Spoed electrician has insurance, both worker's compensation and general liability. Getting that certificate is the most important thing you can do in your quest to acquire a good plumber or electrician.Don't just take their word for it, call the insurance company and get a Certificate of Insurance.Next, you're going to want at least a half dozen references and you're going to call them all. Google the plumber or the electrician's name to see what you can find. You will also want to know all the professional associations they belong too. Next, take some time to do some internet research. So why not do the same thorough research on the plumbers and electricians that will be working on your home?You've probably spent hours on the internet researching that $50 MP3 player you use on the treadmill.
Once you've finished your homework and selected a plumber or electrician, make sure you both sign a detailed contract. Whether or not they can use your bathroom, stuff like that). The document should not only outline exactly what you want done but it should also contain ground rules for working in your home (whether or not they can listen to the radio. Obviously, you'll have to be flexible if it's an emergency, but you should still have something in writing.