Drain cleaning in Portland: costs, methods and when to call

These ranges come from HomeGuide's 2026 drain cleaning cost guide. They are national figures; nights and weekends cost more, and a stubborn main line can need more than one visit.

HomeGuide also lists plumber labor at $45 to $150 per hour, a minimum call-out fee of $50 to $200 during business hours, and after-hours emergency rates that are often two to three times standard pricing.

Snaking (augering or rodding) feeds a rotating steel cable into the drain to break up or pull out the blockage. It is the standard method for single-fixture clogs. HomeGuide prices a simple sink, tub or toilet clog at $100 to $275 and a main drain or multi-fixture blockage at $175 to $600.

Hydro jetting sends high-pressure water through the pipe to scour its walls, and is used for tree roots, sludge and grease buildup. HomeGuide gives two figures for severe jobs: $300 to $800 in its price table and $600 to $1,400 for severe main sewer blockages, so ask for a written quote before agreeing to jetting.

After a main line clog, especially one that keeps coming back, a camera inspection shows whether the cause is roots, a sag, a crack or a collapsed section. That changes the fix from cleaning to repair. If roots are the cause, our guide on tree roots in sewer lines explains why, and the sewer line repair page covers what happens if the camera finds damage.

• One slow drain, with everything else normal, is usually a local clog in that fixture's trap or branch line.
• Several drains backing up at once, or water rising in a tub or basement floor drain when the washer runs or a toilet flushes, points to the main building sewer.
• Gurgling toilets when other fixtures drain can mean a partial main line blockage or a venting problem.
• Sewage coming up into the house is urgent. Stop running water. Portland Environmental Services recommends calling a plumber first to find the cause and lists 503-823-1700 as its 24-hour line for sewer emergencies and odors. Our emergency checklist has the details.

Portland Environmental Services asks residents to flush only the three Ps: pee, poop and toilet paper. It says that even wipes marketed as flushable are not flushable and can clog the sewer. Its list of items to keep out of toilets and drains includes:

• Wipes of any kind, paper towels, facial tissue and face masks.
• Pads, tampons, diapers, cotton balls and swabs, and dental floss.
• Disposable gloves and cat litter, even if labeled flushable.
• Fats, oils or grease from cooking.
• Unused medications or other chemicals.

The city's sewer backup page adds that wipes, garbage, debris and grease can all plug sewer pipes.

Clearing a clog does not. The City of Portland says you do not need a permit to fix or maintain existing plumbing fixtures or parts. If cleaning turns into repairing, replacing or moving pipe, a plumbing permit and inspection are required, and sewer line repairs have their own permit rules.

A plunger or hand auger is a reasonable first step for a single fixture. If you use a chemical product, follow the label and tell the plumber what you used before they open the drain. If a fixture keeps clogging, or more than one drain is affected, stop and get a professional assessment.

The Oregon Building Codes Division says contractors doing plumbing work must hold both a Construction Contractors Board license and the appropriate BCD plumbing contractor license, and advises checking them before work begins. Search the company in the CCB license search and the BCD license holder search, and make sure the names match the quote. Get a written contract that names the company, its CCB number, the scope and the price.

Ask whether the price is per drain or per hour, whether a camera inspection is included, and what happens if the clog returns. The BBB suggests getting several written estimates and asking about anything unusually high or low. Our guide to choosing a plumber in Portland lists more questions.

We are an independent guide and do not do this work. To reach a plumber, call one of the licensed contractors listed on this page or see all listed contractors. If you prefer, you can email us your question through our contact page.