Drain cleaning services in Downtown and Northeast San Francisco

Dense blocks and older buildings

The centre and northeast of the city hold some of its densest and oldest buildings: apartment blocks, mixed-use buildings with shops below and flats above, and rows of attached houses on steep streets. Most buildings have many households or businesses on one set of lines.

A drain call here is rarely about a single sink. It is usually a stack, a shared branch or the building drain, and the answer depends on the age and type of the building.

Cast iron stacks and shared branches

Older multi-storey buildings carry waste down cast iron stacks to a building drain. Scale narrows the bore, and grease and wipes catch on the rough wall. A blockage in a stack can affect every unit above or below it, and lower floors usually show it first. See cast iron drain cleaning.

Who calls, and what to tell us

In most buildings the owner or manager arranges service for shared lines, and residents report the problem. If you are a resident, tell the manager which fixtures and units are affected, and note the date. If you manage a building, you can call us directly. See multi-unit building drains.

Kitchens and restaurant lines

Busy restaurants and busy kitchens make grease a leading cause of clogs, and in a mixed-use building the restaurant below and the flats above share the line. Jetting is often the right tool. See kitchen grease clogs and restaurant and commercial drains.

Steep streets and garages

Many buildings on steep streets have the garage at street level, with the building drain beneath or beside it. The cleanout may be in the garage or a utility room. Tell the technician where it is and how to get in.

Older laterals under the street

The laterals beneath older streets are among the oldest in the city. Clay and cast iron are both common, with later sections in other materials. Where a street tree and a clay lateral meet, roots enter open joints. See tree root removal.

Timing for businesses

A business that cannot drain cannot operate. Tell us your hours, and tell us if a backup has reached a public area. We do not promise a set arrival time. Emergency calls are taken around the clock, though.

Street trees, planters and roots

Downtown and the northeast have fewer street trees than residential districts, but the older ones stand along many blocks, and sidewalk planters are common. A clay lateral under a planter or beside a tree can still admit roots through open joints.

Where a line serves a mixed-use building, a root intrusion can be harder to notice, because the first sign may be a slow drain in a ground-floor business. A camera shows where roots enter and how far down the lateral they sit. See tree root removal.

Making a shared-line visit go smoothly

A shared-line visit goes best when someone with authority for the building is available. Tell residents and tenants in advance, clear access to the cleanout, and say which fixtures and floors are affected. If the technician needs a key or a code, arrange it before they arrive.

On a steep street, tell us where a truck can stand and whether a hose may need to run through a garage or a side passage. Small details like these save the first half-hour of the visit, and in a dense building they matter more than anything else.

A plan for a line that keeps backing up

If a building has had more than one backup, treat the next visit as a diagnosis. Ask the technician to run a camera through the building drain and the lateral once the line is open, and to note which stack or branch each blockage came from. A short log of dates, units and findings turns emergencies into a pattern.

From there, a schedule makes sense: jetting on kitchen stacks at an interval matched to how fast grease returns, a camera run every year or two on an old lateral.

What a camera usually shows here

In an older mixed-use building, the camera typically shows cast iron with scale, junctions where branches from several units meet, and in the lateral beyond, clay with a few open joints and sometimes roots. Seeing each tells you whether a cleaning will hold or a schedule is the sensible plan.

Access and getting to the cleanout

Cleanouts in a large building may be at the base of a stack, in a garage, a service room or a rear light well. Coordinating access with the manager saves time. Tell the technician about gates, alarms and locked areas, and where a truck can stand on a steep street.

What helps when you phone

Tell us the building type, the year built, the number of units on the line, which units and fixtures are affected, where the cleanout is and whether the garage is involved. If it has backed up before, tell us when.

From the first call to the final bill

Call at any hour. The person who answers asks about the affected drains, the age of the building, slab or raised foundation, and any known cleanout, and then passes you to an independent technician close by. They tell you the price before any work begins.

We do not promise a set arrival time. Emergency calls are taken around the clock, though. Rules about laterals differ by city and agency, so check locally before a purchase or sale. A technician serving Downtown and Northeast can explain what applies to your property.

Common questions