Clogged Drains & Snaking in Toronto Condominiums

In a condominium there are four likely answers, and which fixtures are affected tells you which one. If it is one sink only, the trap or the pipe immediately after it is coated or plugged, usually with grease, hair, soap scum or something dropped down it. If the sink and the tub in the same bathroom are both slow, the blockage is in the shared branch behind the wall. If every fixture in the suite is slow, the blockage is where the branch meets the stack. And if your neighbours above or below have it too, it is the stack itself and it is a corporation matter.

We advise against it. Caustic cleaners act on some soft organic material and do almost nothing to hardened grease, hair wound around a stopper, or a solid object. They then sit in the trap, where they attack older metal pipe and chrome finishes, and they leave the line hazardous for whoever opens it next. A plunger and hot water are reasonable first measures. Beyond that, mechanical clearing removes the obstruction rather than chemically softening part of it.

Some of them, yes. Pulling the pop-up stopper out of a bathroom sink and cleaning the hair off it solves a surprising share of slow bathroom drains. A plunger, used properly with the overflow covered, clears many toilets and sinks. Cleaning a tub strainer and the visible part of the drain is fine. Where we would stop is taking a trap apart if you are not certain you can get it back together, and using a drain bladder or high pressure on old pipe. If the same drain keeps coming back, the cause is further in than a resident can reach.

Three common causes. A trap that has dried out, which happens in a spare bathroom or a floor drain that is rarely used, lets sewer gas straight into the room, and running water for thirty seconds refills the seal and fixes it. Decomposing grease and biofilm in the branch gives a sour, persistent smell that comes back after cleaning the fixture. And a blocked or restricted vent makes the system pull air through your trap instead of through the roof, which smells worst when a neighbour's fixture drains. The first is a resident fix; the other two are a service call.

Because they share a branch and that branch is restricted. The tub is usually the lowest opening on the run, so when the line cannot take the volume, the water comes out at the tub rather than backing up into the higher fixture. It is the same principle as a low suite flooding when a stack is restricted, just on a smaller scale. This is a branch blockage, and it needs clearing rather than living with.

It means the drainage below that point cannot take what is being put into it, and the floor drain is the lowest opening available. In a condominium that usually points at the building drain or the base of a stack rather than anything in your suite, and it can affect a garage, a locker room or a laundry room. Treat it as urgent and report it immediately: it is both a health matter and a sign that a main line is blocking. Do not add more water to the system while it is backing up.

Often, yes. Use a proper flanged toilet plunger rather than a flat sink plunger, seat it fully over the outlet, and use steady pushes rather than violent ones. Do not keep flushing to see if it has cleared, because that is how a blocked toilet becomes a flooded bathroom. If two or three attempts do not move it, stop and call: a closet auger reaches round the trap of the bowl where a plunger cannot, and if the blockage is actually in the branch beyond the toilet then nothing you do at the bowl will fix it.

Cooking fats, oils and grease, which are the single largest cause of blockages in a residential building. So-called flushable wipes, which do not break down and which we pull out of condo stacks constantly. Paper towel, cotton pads, dental floss, hair from a brush, cat litter, coffee grounds, rice and pasta, and anything fibrous or stringy. Also worth knowing: in a shared stack, what your neighbours put down affects you, which is why buildings with recurring problems often see them on the same few columns.

For a blocked fixture that is not causing damage, we book a window and get there the same day or the next, coordinated with property management. For anything that is actively backing up or flooding, call the 24-hour line and we dispatch: a backing-up stack or building drain is treated as an emergency because the damage grows with every fixture somebody upstairs uses. Our number is the same at three in the morning as it is at three in the afternoon.

Sometimes, and property management arranges it rather than you. Clearing a branch or a stack may need access at a cleanout that happens to sit in another suite, or we may need to run a fixture upstairs to confirm flow after the work. We keep that to the minimum, and any suite we enter gets the same floor protection and the same clean-up as the one that reported the problem.

Your declaration decides it, and property management makes the call rather than us. The usual division is that the fixture, the trap and the branch inside your unit are the owner's responsibility, and the vertical stack and the building drain are common elements. That is why a blocked trap under one sink is billed differently from a restricted stack serving forty suites. Where one visit deals with both, we invoice the two parts separately so nobody has to split a single bill.

Used correctly, no. The risk is not theoretical though: a powered cable driven hard through old, thin cast iron or through a pipe that is already cracked can make the damage worse, and full-pressure jetting on a corroded shell can open a hole. That is exactly why we match the tool to the pipe, and why we camera anything we are not sure about before escalating the method. A contractor who reaches straight for maximum pressure on a sixty-year-old stack is not being thorough.

Because clearing a blockage and fixing a cause are two different jobs. A line that comes back is usually doing so for a physical reason: grease coating the full length rather than a single plug, a failed hub or a cracked section catching debris, a low spot holding water and solids, a fitting installed at the wrong angle, or a vent that is not doing its job. A camera answers it in twenty minutes. If a plumber has cleared the same drain three times and never looked inside it, you are paying for the same visit repeatedly.

A snake is a cable that bores through or hooks out whatever is blocking the line. It is the right tool for an object, for hair, and for getting flow back quickly. Jetting uses high-pressure water through a rotating nozzle to scour the pipe wall back to its original bore, which is the only thing that properly removes years of hardened grease. Snaking a greased-up line punches a channel through the middle and it closes again; jetting it cleans it out. The choice is about the cause, not about which is better.

Yes. Floor drains in garages, locker rooms, laundry and mechanical rooms, trench drains, garbage room drains, exterior area drains and the building drain itself are all part of what we handle for the buildings we look after. These are the lines nobody thinks about until a garage floods, and they are worth being on a schedule in any building that has had a problem before.

In most cases, yes. A drain camera goes in through an existing access point and shows the inside of the pipe on a screen, so we can see grease, scale, cracks, failed hubs, offsets, roots and standing water, and locate them by distance along the run. That turns a guess into a decision, and it is what we hand to a board when a line has gone beyond cleaning and needs a section replaced.