letter no. 1
How do I check whether a plumbing company is actually licensed?
the desk replies — Ask for the trade licence number and look it up on the issuing emirate's public registry — Dubai's DET and Abu Dhabi's ADDED both offer online searches. Check the licence is active and its activity covers plumbing, sanitary works or building maintenance. A company that hesitates to share its licence number has answered your question already.