It is highly unprofessional to scream, threaten and curse at clients. John came to "inspect" our apartment as part of our co-op board requirements. He spent a total of 5 min in our apartment, 3 minutes of which he texted and took a phone call regarding his next job. He charged us $350 for 5 minutes of his time. He also did not take any pictures until we mentioned it. He then said everything was good and he will let our property manager know. Soon after, our property manager said he recommends we install something into our plumbing which is not required by building code and will cost us $1,200. Our plumber (not John) disagreed and one of our contacts from the Dept of Buildings told us this work was not needed and it only needed in kitchens for dishwashers. When we called John, he proceeded to scream at us and say "he's been doing plumbing since we were in diapers". He also THREATENED us saying he will "report us to the DOB and make our lives hell". The next day, the DOB showed up at our home to check our permits based on the plumber's complaint and found no issues. This man is completely unhinged, reporting us to DOB out of spite (he also seriously needs to get a life). He is clearly ageist as we are two young homeowners and he is a much older man. John should not be allowed around people let alone into their homes. If you complain about his work, he will report you to the DOB and make false claims. read more