Stable income: Somewhat stable

A plumbing business can offer a moderately stable income source for most individuals who pursue it. Based on my research and observations online, many plumbing professionals experience a decent baseline income with some fluctuations. While there is predictability in earnings, factors like seasonality and market demand can lead to some variability in monthly profits. I'd rate it a 2 out of 3 because there is a reliable income stream for most months, but occasional fluctuations can impact overall consistency.