High-pressure water scours the entire pipe wall — grease, scale, sludge, and roots — instead of just punching a hole through the clog. The deepest clean a sewer line can get.
Written bySteven Lockhart
·
Reviewed byMiguel Lopez, Owner & Licensed Plumber, New Pro Plumbing (CSLB #974600)
·
Last reviewedJune 2026 · 8 min read
Quick Answer
Hydro jetting clears a drain or sewer line by scouring its entire interior wall with high-pressure water — 1,500 to 4,000 PSI for most homes — removing grease, scale, sludge, and roots rather than just opening a channel. New Pro uses it on recurring clogs, grease-heavy kitchen lines, and root-prone Westside sewer laterals, flat-rate and camera-verified.
Hydro jetting is a drain-cleaning method that uses a high-pressure water stream through a specialized nozzle to scour the inside of a pipe clean. This page is part of our complete guide to residential plumbing services. Where a cable bores a hole through a clog and moves on, jetting strips the grease, mineral scale, sludge, and root hair off the pipe wall itself, restoring the line to close to its original diameter. On the older, rough-walled clay and cast-iron pipe common across the Westside — the kind that snags debris and rebuilds a clog within weeks — that difference is the difference between a fix and a callback.
Hydro jetting is high-pressure water jetting (typically 1,500–4,000 PSI for homes) that scours the full interior wall of a drain or sewer line, removing grease, scale, sludge, and roots rather than just clearing a channel through the clog.
Jetting earns its keep on recurring clogs, grease buildup in kitchen lines, and root-prone main sewer laterals. If a line has been snaked repeatedly and keeps backing up, the buildup is on the wall, not just in a single spot — and only jetting removes it. It also restores flow capacity that years of scale have quietly stolen.
Jetting is powerful, so it has to be used judiciously. On a line that may be cracked, bellied, or severely corroded, high pressure can do harm. That is why New Pro cameras a questionable line first and matches pressure to the pipe — or recommends trenchless repair instead when the pipe itself is the problem.
Hydro jetting works by feeding a hose with a multi-port nozzle into the line and pushing water through it at high pressure; forward jets break up the blockage while rear-facing jets pull the hose through and blast debris back toward the cleanout. The result is a pipe scoured wall-to-wall, not just a channel bored through the clog.
We almost always pair it with a sewer camera inspection so we can see the condition before we jet and prove the line is clean after.
Residential jetting typically runs in the 1,500–4,000 PSI range, but the right pressure depends on pipe material and condition. We set it deliberately — enough to clean, never so much as to harm a sound line.
Recurring clogs? Jetting cleans what snaking leaves behind.
Get a Free QuoteThe three buildups jetting removes most effectively are kitchen grease, mineral scale inside old metal pipe, and tree-root hair in clay and cast-iron sewer laterals — exactly the conditions West LA’s older homes and mature ficus and sycamore street trees produce. Snaking parts these temporarily; jetting clears them out.
For a true root invasion, jetting cuts and flushes the roots, but the camera tells us whether the pipe also needs trenchless rehabilitation to keep them out for good.
New Pro quotes a flat rate before jetting, with the camera inspection findings explained so you can see why the line needs it. Our guide to hydro jetting cost covers the ranges and the factors — line length, access, severity — that move the number.
A restaurant-adjacent home keeps backing up at the kitchen line every couple of months despite repeated snaking, and the smell is getting worse.
New Pro cameras the line, finds it half-choked with hardened grease and scale, and jets the full length at a pressure matched to the cast-iron pipe.
The line is restored to near-full diameter, the odor clears, and a maintenance interval keeps it that way — ending the cycle of partial fixes.
The Bottom Line
If a line has been snaked again and again and still backs up, the buildup is on the pipe wall — and only hydro jetting removes it. New Pro jets the line, verifies it with a camera, and tells you straight whether the pipe itself needs more help. That is how a recurring clog finally stops recurring.
For recurring clogs, grease-heavy kitchen lines, and main sewer lines, yes — hydro jetting scours the full pipe wall while snaking only bores a channel through the clog. For a simple one-time hair clog in a bathroom branch, snaking is faster and more economical. The right choice depends on what is clogging and how often; we camera questionable lines so we can recommend the method your pipe actually needs.
On a sound pipe, no — pressure is matched to the line and stays within safe limits. On a pipe that is already cracked, severely corroded, or bellied, high pressure could cause harm, which is exactly why New Pro inspects a questionable line with a camera before jetting. If the pipe itself is failing, we recommend repair or trenchless rehabilitation instead of jetting a line that needs replacing.
It depends on the line. A home with mature trees over a clay sewer lateral or a kitchen line prone to grease may benefit from maintenance jetting every one to two years, while a sound modern line may go far longer. After the first jetting and camera inspection, we can recommend an interval based on what your line actually shows rather than a one-size-fits-all schedule.
Jetting cuts and flushes root intrusion and clears the line, which restores flow immediately. However, roots return through the same cracks and joints that let them in, so on a root-prone clay or cast-iron lateral, jetting is often paired with a plan to keep them out — such as trenchless pipe lining — for a lasting solution. The camera shows us whether the pipe needs that next step.
Yes, on any line where condition is in question. A sewer camera inspection lets us see the pipe material, find cracks or bellies, and confirm the cause before we choose a pressure. It also gives us before-and-after footage so you can see the line was actually cleaned, not just temporarily opened. Inspecting first is how we jet safely and avoid harming a compromised pipe.
It can be, with the right precautions. Much of the Westside runs on older clay and cast-iron pipe, and a competent plumber evaluates that pipe before jetting and sets pressure accordingly. We do not jet a line we suspect is cracked or collapsing; we inspect it and recommend the appropriate repair. Used correctly, jetting is one of the most effective ways to restore an older line’s flow.
Cost depends on the line’s length, accessibility, and how severe the buildup is, plus whether a camera inspection is included. New Pro quotes a flat rate before we start, so you know the price up front rather than watching an hourly meter. Our hydro jetting cost guide explains typical ranges and the factors that move them; call us for a quote specific to your line.
This page was written by the New Pro Plumbing content team and reviewed for technical accuracy by Miguel Lopez, owner and California-licensed plumber (CSLB #974600). Guidance follows U.S. EPA, U.S. Department of Energy, and California agency sources where cited. Any figures reflect New Pro Plumbing's typical practice and West Los Angeles conditions, not a quote — we confirm pricing in writing before any work begins.
What’s new: June 2026 — first publication.
High-pressure water scours the entire pipe wall — grease, scale, sludge, and roots — instead of just punching a hole through the clog. The deepest clean a sewer line can get.
Fill out the form below and we'll get back to you within 24 hours.
We've received your request and will be in touch within 24 hours.
