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.
So I started calling plumbers. And there was one name that immediately came to mind: Godot (not his real name). I have lived here in Gilford for eight years and have seen his advertisements at least daily ever since I moved in. His ads are in the local papers, on the local internet sites, he's got an expensive full page ad in several telephone directories, I believe I even received a personal direct mail piece from him when I bought my home.
In order to summarise the best plumbers to call out to repair your condition local plumber will be the plumbers who are able to get to you the quickest provide you with a reasonable cost and have the expertise to carry out the job and complete it correctly. Everything else is actually not worth the work.
You can find out what people have to say about service companies by reading reviews online. If you find a lot of negative reviews from one company, you should definitely stay away from them. There are many positive reviews online, so you should not have a problem finding a Trustworthy plumber that you can turn to for many years to come.
Sometimes repairs do not need to be immediate, but they should be quick. When you do not need emergency repairs, but cannot wait days for help, you should find a plumbing company offering same day services. This means you can call in the morning and have someone there to make the repair within hours. Since some companies do not offer emergency services, same day service may be the next best thing, so you should look for this offering if it is the best your Local plumber has.
It is fine to ask the qualifications of a plumber. Check out if their paperwork is authentic. If you find anything fishy, call the MPA. Various plumbers are registered with Master Plumbers Association.
Once you have become a master plumber you can start your own plumbing company or you can even work for the government. This may sound like it is going to take forever to become a master plumber and it is difficult to achieve this level but it is not. Yes, it is going to take several years but the prestige title at the end is worth it.