Deep in the redwoods at the top of the San Lorenzo Valley, Boulder Creek is true mountain living — well water, septic systems, older cabins, and weather that tests every pipe. Eco-Flow has served these homes for over 18 years, and we make the drive up Highway 9 when other plumbers won't.

Boulder Creek sits at the top of the San Lorenzo Valley, surrounded by Big Basin's redwoods and reached by winding mountain roads. Homes up here run on wells and septic systems, and many are older cabins. Consequently, the terrain and weather make plumbing more demanding than anywhere down the hill.
We've spent over 18 years serving Boulder Creek and the upper valley. We know what redwood roots do to a septic lateral, how a cold snap finds an under-insulated pipe, and what it takes to get a crew up the mountain when something fails. In fact, a lot of plumbers won't make that trip — we will.
A remote mountain home depends on its water and waste systems working, often far from the nearest help. Therefore, staying ahead of problems up here isn't just convenient — it protects the home and the land.
From a frozen pipe after a cold snap to a root-clogged septic line — we handle the full range of mountain plumbing, and we make the drive.
Don't take our word for it — here's what your neighbors have to say.
Everything you need to know before you call.
We cover the upper San Lorenzo Valley and the rest of Santa Cruz County — here's what's nearby.
Call Santa Cruz County's top-rated plumber — open 8am–5pm daily, with after-hours emergency service available.