Make money online: NO

Commercial plumbing as a side hustle is not remote-friendly as it typically involves on-site work at clients' locations. There are no hidden in-person requirements, but the nature of the job necessitates physical presence. Reddit and other forums discuss the hands-on nature of this business, which doesn't align with remote work. Success in commercial plumbing depends on your location for access to clients, local regulations, and equipment availability. It's crucial to consider time zones when scheduling appointments. Potential red flags include the physical demands of the job, the need for specialized tools, and competition in the market.