Let's be real: Sometimes those chemical drain cleaners don't suffice, and you've got to generate a professional. As the world turns, toilets stop flushing, sewers overflow and pipelines burst (a minimum of till the general population stops flushing things that aren't bathroom tissue). It's not stunning that the plumbing industry is big. According to IBISWorld, it brought in a massive $106 billion in 2018 and is only expected to grow.