What bathroom drain unclogging involves
Most bathroom clogs sit within the first metre of pipe. Hair wraps around the pop-up rod or the tub stopper linkage, soap scum glues it together, and the opening shrinks a little more every week. The job starts at the fixture, not with a long machine run.
- Remove the basin pop-up or the tub overflow plate and lift out the linkage.
- Clear the hair mat by hand and with a short drum auger.
- Open the P-trap under the basin where it is accessible and flush it.
- Run a full basin or a few litres in the tub and time the drain-down.
- Refit the stopper with fresh washers so it seals and lifts properly.
If water still lingers after the trap is clean, the blockage is further along the branch line, and we follow it with a longer cable.
Why North York houses need it
Plenty of local bathrooms date from the 1950s through the 1970s. Original cast-iron tub drains and galvanized basin arms build up scale inside, so hair catches sooner than it would in plastic pipe. Toronto's moderately hard water adds mineral to the soap film. Basement bathrooms added later sometimes have long, flat runs that drain slowly by design.
Plumber's tip: Skip the caustic drain gel. It rarely dissolves a hair mat, and it sits in the trap where we then have to put our hands. Call (365) 517-5705 instead.
How we write up the job
The work order lists each fixture we opened, what came out, the condition of the stopper and trap, and any parts replaced. When we see corroded drain arms or a trap that has been patched with tape, that goes on the sheet as a note, with no pressure to fix it the same day.
Signs you should call
- Standing water around your feet in the shower.
- A basin that takes more than a minute to empty.
- Gurgling from the tub when the toilet flushes.
- Two bathroom fixtures slow at once, which points past the trap.
- A sewer smell from the overflow opening.
When the basement floor drain or a toilet one floor down backs up along with the bathroom, the problem is probably the main line. Our main sewer line clearing page covers that, and roots are handled under tree root removal.
Costs and what affects them
We quote after we see the fixture. The figure depends on how many drains are slow, whether the trap and stopper come apart cleanly, and whether a seized or broken part needs replacing. Access matters too: a tub with no access panel is slower to work on than a basin with an open vanity. You hear the number before work starts.
Keeping it clear afterward
A mesh hair catcher on the tub and a monthly kettle of hot water down each basin do more than anything sold in a bottle. Pull the basin stopper every few months and wipe it off.
Job at a glance
| Category | Drains |
|---|---|
| Tools | Zip strip, 25 ft hand snake, needle-nose pliers, pop-up rod kit |
| Final test | Filled basin and tub drained with the stopper fully open |
Tell-tale signs
- Shower floor puddles within a minute of turning on
- Pop-up stopper won't lift water out of the basin
- Hair visible caught in the tub overflow plate
Steps on the job
- Lift the strainer or pop-up rod and fish out the hair mat
- Run a short hand snake through the overflow, not the drain cover
- Clear the trap below the tub if access panel allows
- Reset the pop-up linkage so it seals and opens fully
Your questions on this one
Can I use a plastic hair snake myself?
Yes. A barbed plastic strip pulled from the basin or tub opening clears many light hair clogs. If the drain is still slow afterward, the build-up is deeper or the stopper is the problem.
Why does my tub drain fine but gurgle?
Gurgling usually means a trap is being sucked dry of air because a vent or a branch line is partly blocked. It is worth a look before it becomes a full clog.