>>60754373 (OP)>What are the best plumbing certifications to get in 2025? I heard the backflow prevention certification is the most sought after and respected, and that you're basically set for life afterwards.You have to decide what you want to specialize in. Backflow is okay. The picture you posted the guy is running a hydrojetter to clean a sewer. You can charge $700-2000 per line and its quick to do, but the machine costs 65k. But the main thing is for doing big numbers is being able to sell a new line or an expensive service.
>>60754975depends on the state, for some its just a license.