Drain Cleaning in Santa Clara, CA

A Homeowner’s Guide to Drain Cleaning in Santa Clara

One clogged drain or all of them?

Where the water backs up tells you who to call. A single sink, tub or toilet that drains slowly has a clog in its own trap or branch line, inside the house, and that’s always a job for a plumber. When several fixtures back up at once, water rises in a shower or tub when you flush, or the cleanout in the front yard overflows, the blockage is further down: in the main drain under the house, in the lateral, or in the City’s sewer main.

For that second case, Santa Clara asks residents to call the City first.

The City’s free check

Santa Clara runs its own Water & Sewer Utilities department, which maintains more than 270 miles of sewer mains. A crew response costs nothing:

• Weekdays, 8 a.m. to 5 p.m.: 408-615-2000
• After hours: 408-615-5640

The crew checks two things: the main in the street, which it clears if that’s the cause, and the lower lateral, from the property line to the main, through the property-line cleanout. If both are flowing, the City tells you the trouble is on private property, where its crews can’t work. That’s where we start, usually from the cleanout, with a cable machine for a simple stoppage or hydro jetting for grease and roots.

Two more City rules to know: it can’t reimburse you if a plumber you hired finds the stoppage in the City main, and it asks you to report any blockage a private plumber clears, so it can make sure the debris doesn’t cause a problem downstream.

Your lateral, all the way to the street

In many South Bay cities the public agency owns part of the lateral. Santa Clara doesn’t. City Code chapter 13.10 makes the lateral the property of whoever owns the building it serves, right up to the City-owned main, and § 13.10.040 requires the owner to keep it free of roots, cracks, open joints, grease and sediment. A clog under the sidewalk or street is yours to clear.

Roots are the usual repeat offender in older clay and cast iron laterals. Cutting them out restores flow, but a camera inspection shows whether a cracked joint will let them back in. If it will, see sewer line repair in Santa Clara. If the roots come from a City street tree, leave the tree alone: only City crews may prune or remove one, and requests go to Public Works at 408-615-3080.

Cleanouts: the access point everything depends on

A cleanout is the capped access pipe on the lateral, usually at the property line. The City notes that most construction since the 1960s includes one. Without it:

• the City can’t check or clear the lower lateral;
• a plumber has to work from inside the house, through an indoor cleanout or by pulling a toilet;
• one has to be installed before the lateral can be checked or cleared from the property line.

The City installs cleanouts for a fee, or a contractor can. A cleanout at a single-family home, duplex or ADU can go through a Building Simple Permit; work at the property line also needs a Public Works encroachment permit.

What the City asks you to keep out

Santa Clara’s fats, oils and grease program lists the myths: hot water cools and lets grease set again, “grease-dissolving” soaps only dilute it, and garbage disposals shred fat without removing it. Cooking oil, meat fat, butter, sauces, salad dressings and dairy all count. The City says grease in sewer lines raises sewer rates for all customers. Scrape it into a container in the trash and rinse with cold water.

For toilets, the City’s rule is only human waste and toilet paper. Its do-not-flush list covers all wipes, even “flushable” ones, plus medicine, feminine products, diapers, floss, paper towels and tissues.

For everything else we do in the city, see plumbing in Santa Clara.

Sources

City of Santa Clara Water & Sewer Utilities: Who to Call · Sewer Problem? · Sewer Service · Fats, Oils & Grease (FOG) Program. City Code: ch. 13.10 Sewers, definitions · ch. 13.10 Art. II, incl. § 13.10.040. Building Division: Simple Permits. Public Works: Engineering Permits · City Trees. Checked November 2026.