If you are plunging or snaking the same drain every few weeks, the clog is not the problem — something upstream is. Here is why drains keep clogging and how to fix the cause instead of the symptom.
Written bySteven Lockhart·Reviewed byMiguel Lopez, Owner & Licensed Plumber (CSLB #974600)·Last reviewedJune 2026 · 4 min read
Quick Answer
Recurring drain clogs mean the cause has not been removed — usually grease and buildup coating the pipe wall, roots entering the line, a venting problem, or a bellied section that traps debris. Snaking punches a hole through the clog; hydro jetting scours the whole pipe, and a camera inspection finds the underlying reason so the clog stops returning. This is part of our complete guide to drain cleaning in West Los Angeles.
If you are asking why does my drain keep clogging, the honest answer is that the last clearing did not address the cause. A cable can poke a hole through a grease blockage and the water flows again — until grease closes the gap a few weeks later. The same goes for roots and for low spots in the pipe that collect debris. Until the underlying issue is removed, the clog returns. This guide is part of our complete resource on drain cleaning in West Los Angeles.
A recurring drain clog is a blockage that returns repeatedly in the same drain because the underlying cause — buildup, roots, venting, or pipe shape — has not been resolved, only temporarily cleared.
When a drain keeps clogging, the persistent clogged drain causes usually fall into a short list. The table sorts them so you can see why repeated snaking has not solved it.
| Cause | Why it recurs | The real fix |
|---|---|---|
| Grease/soap buildup | Snaking leaves the coating behind | Hydro jet the pipe wall |
| Tree roots | They regrow after cutting | Seal the line / repair |
| Poor venting | Slow flow lets debris settle | Correct the vent |
| Bellied pipe | Low spot traps debris | Repair the sag |
The lasting frequent drain backups fix has two parts. First, hydro jetting scours the entire interior of the pipe — not just a channel through the clog — so grease, scale, and root hairs come off the wall. Second, a camera inspection tells us whether jetting is enough or whether roots, a vent issue, or a bellied section needs a repair. We would rather find the cause once than keep charging you to clear the same drain.
A homeowner snakes the kitchen line every month and it clogs again within weeks.
New Pro hydro jets the line, removing years of hardened grease the cable had only punched through, then cameras it to confirm the pipe is otherwise sound.
With the pipe wall actually clean, the monthly clogs stop — and the homeowner gets simple habits to keep it that way.
The Bottom Line
A drain that keeps clogging is telling you the cause is still there. Snaking buys a few weeks; cleaning the full pipe and finding the underlying reason ends the cycle. We jet, we camera, and we tell you straight whether a repair is needed. Call any time, or read more on our drain cleaning page.
Because snaking clears a path through the clog but leaves the grease, scale, or roots coating the pipe wall. The opening closes again as buildup continues. Hydro jetting cleans the whole pipe, which is why it lasts longer.
A cable (snake) breaks through a blockage to restore flow. Hydro jetting uses high-pressure water to scour the entire interior of the pipe, removing grease, scale, and root hairs from the wall. Jetting is the more thorough clean for recurring clogs.
Yes, especially in older homes with clay or cast-iron lines and mature trees. Roots enter at joints and regrow after cutting, so the clog returns. A camera inspection confirms roots and where they are entering.
No. They can damage pipes, are harsh, and do not remove the underlying cause, so the clog comes back. Mechanical cleaning (cable or jetting) plus finding the cause is the durable approach.
A bellied or sagging section creates a low spot where water slows and debris settles, causing repeat clogs in the same place. A camera inspection reveals the sag, which a targeted repair corrects.
Yes. After clearing and cameraing the line, we tell you whether it was a one-off, needs jetting on a schedule, or needs a repair — with a flat-rate quote, so you can fix the cause once.
Written by the New Pro Plumbing content team and reviewed for technical accuracy by Miguel Lopez, owner and California-licensed plumber (CSLB #974600). Pipe lifespans are presented as typical ranges, not guarantees, and any pricing is confirmed in writing before work begins.
What's new: June 2026 — first publication.
We find why it keeps coming back — not just clear it again — and quote a flat rate. Call any time.
