How Often Should You Have Your Drains Cleaned?

Maintenance

One of the most common questions we hear from homeowners in Cerritos, Long Beach, and surrounding communities is: "How often should I have my drains professionally cleaned?" The honest answer is — it depends. Factors like your home's age, household size, what goes down your drains, and whether you have trees near your sewer line all affect how frequently maintenance is needed.

But here's what we know for certain: scheduled, preventive drain cleaning is dramatically less expensive than emergency drain service. And for older homes in the LA and Orange County areas with aging plumbing, the stakes are even higher. Here's the complete guide to drain cleaning frequency.

The General Rule: Once Every 18–24 Months

For an average residential home with modern PVC drains, a household of 2–4 people, and no history of recurring clogs, professional drain cleaning every 18–24 months is the standard recommendation. This frequency keeps buildup from accumulating to the point of causing blockages and helps catch any developing issues — like early tree root intrusion — before they become expensive emergencies.

However, this baseline shifts significantly based on your specific situation. Use the table below to estimate what's right for your home.

Drain Cleaning Frequency by Situation

Situation	Recommended Frequency
Average household (2–4 people), newer PVC pipes	Every 18–24 months
Large household (5+ people), high kitchen usage	Every 12 months
Older home (pre-1985) with cast iron or clay pipes	Every 12 months
Home with mature trees near sewer line	Every 12 months
History of recurring clogs	Every 6–12 months
Rental properties	Every 12 months
Restaurant or food service business	Every 1–3 months
Commercial property (office, retail)	Every 12 months

Why Older Homes Need More Frequent Service

Homes built before 1985 in communities like Cerritos, Artesia, and Long Beach typically have cast iron, galvanized steel, or clay drain and sewer pipes. Unlike smooth modern PVC, the interior surface of aging metal pipes corrodes and develops a rough texture that traps grease, hair, and soap scum far more aggressively. Meanwhile, clay sewer pipes are prone to cracking and root intrusion in Southern California's soil conditions.

We recommend these homeowners schedule professional drain cleaning annually and consider a camera inspection every 2–3 years to monitor the overall condition of their main sewer line.

Kitchen Drains: Your Highest-Risk Fixture

The kitchen sink drain is far and away the most common source of serious household clogs. Grease, cooking oils, food particles, and soap combine to create a hardening buildup that narrows the pipe interior over time. Even if you're careful about what you pour down the drain, trace amounts of grease in dishwater build up over months and years.

For active cooks or households with garbage disposals, we recommend a professional kitchen drain cleaning every 12 months — even if there are no visible signs of a problem. This is also a good time to have the P-trap inspected and cleaned, as grease tends to accumulate there.

Bathroom Drains: Hair and Soap Scum

Bathroom sink, shower, and tub drains accumulate hair, soap scum, toothpaste, and shaving cream residue. This organic material binds together in the trap and upper drain sections, progressively slowing drainage until a full blockage forms. Drain strainers help significantly, but most bathrooms still benefit from a professional cleaning every 18–24 months — or sooner if drains are noticeably slower than normal.

Main Sewer Line: The Most Important Drain to Maintain

Your main sewer line serves every drain in your home. A blockage or damage in the main line means none of your drains work — and if it backs up, sewage enters your home. We recommend a professional main line cleaning and camera inspection every 2 years for most residential properties. For older homes or properties with large trees, annual main line service is worth the investment.

Signs You're Overdue for Drain Cleaning

• Drains that are noticeably slower than they used to be
• Gurgling sounds from drains or toilets
• Unpleasant odors from any drain
• More than 2 years since your last professional cleaning
• A recent clog that was cleared with a snake or chemical (these only temporarily punch through clogs — they don't clean the pipe)
• You've just moved into an older home with no maintenance records

Hydro-Jetting vs. Snaking: What's the Difference?

A drain snake (auger) is useful for quickly clearing an immediate blockage, but it punches a hole through the clog rather than removing the buildup from the pipe walls. The clog tends to reform within months. Professional hydro-jetting uses high-pressure water (up to 4,000 PSI) to completely scour the pipe interior — removing grease, scale, roots, and debris entirely. The result is a pipe that's clean from wall to wall, not just passable.

For scheduled preventive maintenance, hydro-jetting is always the superior option. For older pipes in fragile condition, our technicians will first inspect the line via camera to determine if hydro-jetting is safe — in some cases, pipe lining or replacement may be the better path forward.