roots invading your pipes - what's your go-to fix?

For an active backup, I’d lean toward having the roots mechanically cut first rather than starting with chemicals: clearing the obstruction seems the more direct immediate step. I’d weigh replacement if roots keep returning or the pipe is in poor condition, but the plumber’s assessment of the pipe would matter before treating cutting as a lasting fix.

If you had to choose, which would push you more toward replacing a section: roots coming back after cutting, or clear evidence the pipe itself is in poor condition? I’m curious how you’d weigh it if only one of those were known.

Clear evidence that the pipe itself is in poor condition would weigh more for me. Roots returning after cutting would make me want the cause checked, but recurrence alone wouldn’t tell me whether replacement is necessary or whether another targeted repair could address it.

I’d also take poor pipe condition seriously, but if replacing a section meant major disruption or wasn’t affordable right away, I might still choose a targeted repair as an interim step - provided the plumber thought it was reasonable. For me, the key trade-off would be whether that buys useful time or just postpones a replacement that’s already clearly needed.

The lower upfront cost of chemicals wouldn’t settle it for me; I’d first ask the plumber whether that particular treatment is suitable for the pipe and situation. If it isn’t a good fit, the cheaper option could just delay addressing the roots.