Kitchen grease clog services in California

Kitchen grease clogs in California: how a clog forms

Fat, oil and grease go down the drain warm and liquid. As they travel along the pipe they cool, and they cling to the wall a few feet beyond the sink. The next time you wash up, more fat goes down and adds to the coating.

Food particles, soap and starch catch on that coating, and the layer thickens. The bore narrows gradually, drains slow, and eventually the line closes. It can take months or years in a busy kitchen.

The pipe does not have to be old for this to happen. A new plastic pipe can clog from grease as readily as an old one, though old iron with a rough wall tends to catch it faster.

Why kitchens are the common source

Kitchens handle more fat than any other room. Frying, roasting, sauces, dairy and dishwashing all send fats down the drain. Busy households with many meals see more of it.

California’s dense restaurant corridors and busy home kitchens make grease a leading cause of clogs. Commercial kitchens on their own are covered on a separate page, restaurant and commercial drains.

In apartments and duplexes, the kitchen branches join a shared line. Everyone’s fat ends up in the same pipe, which is why a grease problem can affect several units.

Signs of a grease buildup

Kitchen drains that run slowly and smell sour. A sink that clears with a cable but slows again in a few weeks. A dishwasher that drains badly. Gurgling when the dishwasher or washing machine runs.

In a building, a pattern where lower-floor kitchens back up first suggests grease in the shared line below.

A line that has been cleared by cable several times with only short relief is a likely candidate for jetting.

Why a cable is not always enough

A cable machine punches through the blockage, restoring flow. But it makes a hole through the middle of a coating and leaves much of the grease on the wall.

The result is relief that lasts weeks rather than months. The grease remains, and the line starts closing again as new fat adds to it.

That is where hydro jetting differs. It uses high-pressure water to scour the full wall of the pipe, removing the coating rather than merely boring through it.

How jetting clears grease

A jetting nozzle on a hose sends water backward through angled jets, scrubbing the pipe wall as it advances and flushing debris along as it withdraws. Hot water helps break down fat.

The technician works along the length of the affected branch and the line beyond it, then flushes with water to confirm that it runs freely.

Jetting suits pipe that is sound. On older or fragile lines, a camera helps to judge whether the line can take the pressure.

What helps and what is a myth

What helps: scrape plates and pans into the bin, wipe greasy cookware with a paper towel before washing, let used fat cool and put it in a container for the rubbish, and use a sink strainer.

What does not: running hot water while pouring in fat, adding dish soap to flush fat away, and relying on a disposal. Soap can move fat along the pipe, but it ends up further down the line.

We do not recommend chemical products or enzyme products for clearing grease from a drain. A mechanical clean is the reliable approach.

Apartments and shared lines

In multi-unit buildings, a grease problem often lives in the shared line below the kitchens. Tenants may see slow drains in several units and no obvious cause in their own.

The building manager or owner usually arranges service for shared lines. If you rent, report the problem and tell them which units are affected.

See multi-unit building drains for who to call.

What affects the cost

The cost depends on the length of line to be cleaned, the access, the machine and the time of day. Jetting costs more than a simple cabling but may give longer relief.

A camera run adds time and shows what condition the pipe is in.

On kitchen grease clogs calls, ask for the price before work begins, and the technician should explain any change before continuing.

Old pipe and new pipe

Grease clogs are not limited to old homes. In a new plastic line the wall is smooth, so fat takes longer to build a coating, but it still builds. In older cast iron, a rough wall catches fat and debris faster, so the same kitchen habits cause a clog sooner.

In a clay lateral, the kitchen branch is not usually the problem; the trouble is further out, where fat that has travelled through the house catches on offset joints and roots. A camera run shows whether grease, roots or both are involved.

This is why two neighbouring homes with similar kitchens can have different histories. The pipe, not only the household, decides how soon a coating becomes a clog.

A sensible plan after a grease clog

If a kitchen line has clogged, ask the technician what came out and how far down the blockage sat. A short, soft plug near the sink is a different story from a long coating that runs into the main.

If the line has clogged more than once, consider asking for jetting, which removes the coating from the wall. If the pipe is old, a camera first helps the technician decide how much pressure it can take.

Change what you can in the kitchen, since that is the cause, and keep an eye on how long the line stays clear. If it slows again within weeks, tell the technician. That pattern points to more than grease alone.

Why it matters for the whole line

A kitchen coating does not stay in the kitchen. Fat that clings to a branch line eventually breaks away in pieces, and those pieces travel to the first bend, the first offset or the first patch of roots in the main, where they stop and collect. A clog that appears in the main may have started at the kitchen sink.

That is one reason a technician may recommend cleaning the branch as well as the main. It is also why a line that has cleared once but keeps slowing is worth a camera look: the picture shows whether grease is lining the pipe, whether roots are holding it in place, or both.

If you rent or manage a building, keeping a note of which units are affected helps the technician find the point where the shared line is narrowest.

Snake or jet for a greasy kitchen line

Grease changes the choice. This shows why technicians often move beyond a cable.

Common questions