Same as all other plumbing in civilized countries
Not necessarily, depends what and where plumbing work is to be done. Check with local plumbing authority about needing license or not. Sometimes you need license to pull permits to do plumbing work. Plumbers usually have at least a journeyman's license.
Yes, the app, Bounty, does work. The app has a 4 star rating and several good reviews.
The only plumbing work that you are allowed to perform without a license is for your own property.
No not really. Messenger is an independent app, you can work with it even when you dont have facebook app.
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Commercial plumbing is a service offered primarily to businesses. Many plumbers do work for householders but these would not usually be seen as offering commercial plumbing. A commercial plumbing firm might for example be employed by a builder to do the plumbing in all the houses on a new housing estate.
Yes, but it doesn't just give the app to you. First, you have to through and buy the app yourself, and then they will refund you the app's cost.
Normally union journeymen plumbers
Delete it.
no
no