An unusual drainage issue is never harmless: a sink that drains slowly, a toilet starting to overflow, bad smells in the bathroom, or gurgling sounds in the pipes. In most cases, people wait too long… until the situation turns into an emergency drain unblocking in Brussels.

In this article, Hydro Therm explains what to do, what to avoid, and most importantly when to call a plumber, based on real field experience. If the problem is already blocked, the safest solution is an emergency drain unblocking service.

Source: Hydro Therm

• water drains more slowly than usual,
• gurgling noises in the sink, shower or toilet,
• unpleasant smells coming from the drains,
• water level rises and then goes down.

These signs mean the blockage is already forming. Acting early often helps avoid an emergency situation.

Need emergency drain unblocking?
Call Hydro Therm on +32 485 54 85 80
Fast service in Brussels, emergency drain unblocking at a reasonable cost when handled in time.

Good practice (hot water + dish soap):

1. Pour a generous amount of dish soap into the sink.
2. Heat a large quantity of hot water (not boiling).
3. Fill the sink completely.
4. Release the water all at once to create strong pressure in the pipe.

The force of the water, combined with the lubricating effect of the dish soap, often helps loosen grease before it hardens. When done early, this method can save you the cost of an intervention.

Why you should not wait:
Kitchen sink blockages are usually made of grease and food waste. Over time, this mixture cools down, hardens, and makes unblocking much more difficult, even with professional equipment.

Before the plumber arrives:
Empty the cabinet under the sink to allow direct access to the siphon and pipework.

Source: Hydro Therm

• Use a standard plunger with slow, steady movements.
• Make sure there is enough water in the toilet bowl.
• Avoid flushing repeatedly.

Very common mistake to avoid:
If a toilet deodorizer block is present, using a plunger can push the block deeper into the pipe, making the unblocking more complex.

Source: Hydro Therm

For blocked sinks, chemical drain cleaners are often counterproductive:

• they mix with solid grease and form a hard mass,
• they can further clog the pipe,
• the unblocking process becomes longer and more expensive.

Additional risk: on stainless steel sinks, these products can cause persistent black stains, sometimes irreversible.

Source: Hydro Therm

In these situations, an emergency drain unblocking service in Brussels is necessary. Acting quickly often allows for a more affordable unblocking, before the blockage fully hardens.

• water no longer drains at all,
• there is backflow or overflow,
• several drains are blocked,
• strong odors appear,
• simple actions no longer work.

Fast interventions (internal links):

• Emergency drain unblocking Uccle
• Emergency drain unblocking Anderlecht
• Emergency drain unblocking Schaerbeek
• Emergency drain unblocking Auderghem
• Emergency drain unblocking Watermael-Boitsfort
• Emergency drain unblocking Woluwe-Saint-Lambert
• Emergency drain unblocking Woluwe-Saint-Pierre
• Emergency drain unblocking Brussels