A clogged drain in London Ontario can range from a slow sink to a full backup affecting multiple fixtures. When DIY methods don't work or you have a main line blockage, you need a plumber who can clear it safely. Our 24/7 emergency plumbing dispatch connects you with plumbers who handle clogged drains across London, St Thomas, Strathroy, Woodstock, Ingersoll, and Dorchester—for sinks, showers, tubs, and main lines.
Signs of a Clogged Drain
- Water draining slowly from one or more fixtures
- Gurgling sounds when you run water or flush the toilet
- Water backing up into another drain (e.g. tub fills when you run the sink)
- Unpleasant odours from drains
- Multiple drains affected at once—often a main line or sewer backup
For routine drain cleaning in London, our plumbers can snake or hydro-jet the line. For a toilet overflow or sewage backup, see our sewer backup London page. For water from a burst pipe instead of a clog, we can connect you with burst pipe repair service.
What To Do When You Have a Clogged Drain
- Stop using the affected drain – Avoid adding more water or waste so the clog doesn't worsen or overflow.
- Avoid chemical drain cleaners – They can damage pipes and aren't safe for all plumbing. A plumber can clear the clog without risking your pipes.
- Check if multiple drains are slow – If more than one fixture is affected, the blockage is likely in the main line; call for emergency drain cleaning or sewer service.
- Call for professional drain cleaning – Our dispatch connects you with plumbers who use augers, hydro-jetting, and cameras to clear clogs and identify root causes.
Why Drains Clog in London Ontario
Older homes in London and nearby towns often have galvanized, cast iron, or clay pipes that corrode, crack, or collect grease and debris over time. Tree roots can invade sewer lines. Hard water can leave mineral buildup. Flushing wipes, grease down the sink, and hair in shower drains all contribute to clogs. Cold winters and ground movement can also cause pipes to shift or collapse, leading to blockages. Regular maintenance and proper disposal habits help; when a clog won't clear, our emergency plumber London network is available 24/7.
If you're also dealing with a leaking pipe or water heater issue, mention it when you call—many of our plumbers handle multiple types of plumbing emergencies.
Clogged Drain Clearing Methods
Plumbers may use a cable auger (snake) for single-fixture clogs, or hydro-jetting for main lines and stubborn buildup. Camera inspections can locate the blockage and reveal pipe condition. For recurring clogs, they may recommend drain cleaning on a schedule or pipe repair. In basements, a failed sump pump can cause flooding—our plumbers can help with pump service too.
For clogged drain service in London Ontario—same-day or emergency—call our 24/7 dispatch or request help online. We connect you with licensed plumbers serving London, St Thomas, Strathroy, Woodstock, Ingersoll, and Dorchester.
Get Help Now
Don't let a clogged drain turn into a backup or water damage. Call our 24/7 emergency plumbing dispatch for clogged drain service in London Ontario, or request help online. We serve London and nearby communities around the clock.