Drainage

Restaurant unblocking in Belgium

In a professional kitchen a drain that backs up does more than fill a sink: it stops service cold. Grease, frying oils and food residue load your pipes at every rush, and the day they give way, your turnover stops with them. We schedule the visit around your opening hours and restore flow without shutting your kitchen longer than needed.

Restaurant unblocking: stainless steel sink drain with its strainer

Our visit

A method sized for a hospitality kitchen

Unblocking a restaurant drain is not like clearing a house sink. We treat the whole circuit (from drains through the grease trap to the main pipe) to fix the cause in depth.

  1. 01

    Circuit diagnosis

    We identify where the network blocks: wash-up drains, a saturated grease trap or solidified deposit further down the pipe. That steers the right technique at once, without wasting time mid-service.

  2. 02

    Grease-trap emptying

    If the separator is the cause, we empty and clean it, then check the drain downstream to confirm nothing remains blocked behind the trap.

  3. 03

    High-pressure jetting

    Against grease solidified on the walls, high-pressure jetting lifts the fatty layer and restores the pipe’s original diameter, without damaging it or only drilling a passage.

  4. 04

    Check and prevention

    We test flow under load, check neighbouring points and agree with you a maintenance rhythm matched to your covers, to limit returns.

Service continuity

We work around your service, not against it

What sets a restaurant visit apart from a domestic call-out is that, beyond network scale, every idle kitchen hour costs money. We factor that in from booking. Planned maintenance sits early before opening, in the afternoon lull or late after closing, when the kitchen is free. You do not have to sacrifice a service to maintain your drains.

If a total blockage already stops you serving, the logic flips: it is an emergency, and we treat it as priority, including outside classic hours. Our work is discreet and clean: we do not disturb the dining room or soil worktops, then leave the space ready to resume service.

The same approach covers venues with several drain points: wash-up, hot kitchen, bar, staff washrooms. We think at full-network scale rather than point by point, so treating one spot does not simply push the load onto another.

The reality of a pro kitchen

A grease load nothing like a home

A domestic kitchen drain sees a few meals a day. A restaurant’s takes dozens, sometimes hundreds of covers, with degreasing sinks emptied in sequence, frying oils and residue leaving through wash-up drains. That volume changes everything: fats cool in the pipes, set against the walls and shrink usable diameter far faster than in a home. It is not an install fault: it is normal wear on a network under professional load.

The grease trap, present in most hospitality kitchens, holds those materials before the sewer. But it fills faster the busier the service, and when it overflows for lack of emptying, fats re-enter the network and clog it downstream. Food residue, starches and fibres cling to the fatty deposit: a professional-kitchen blockage rarely has a single cause, but a build-up the service rhythm accelerates.

The stakes go beyond comfort. A blocked kitchen means dishes you cannot plate, wash-up stopped, service interrupted, and a hygiene inspection that forgives neither standing water nor rising smells. Treating a hospitality drain also protects the continuity of your trade.

Restaurant, and what goes with it: drain pipework in a plant room

Around this problem

Restaurant, and what goes with it

Restaurant unblocking often sits with other work, depending on whether the issue is in the trap, the wash-up line or the urgency of service. These are the most useful links.

Signals to watch

Signals not to leave in the kitchen

In a restaurant a small slowdown turns quickly into a service stop. If you recognise any of these, better act before the next rush.

  • Water stands in wash-up sinks or drains slowly.
  • A grease or sewer smell rises from floor drains.
  • The grease trap overflows or gives off a strong smell.
  • Backup appears when several stations drain at once.
  • Gurgling is heard in the drains mid-service.
  • Flow slows regularly despite surface cleaning.
Not sure? Call +32 2 000 00 00

Before we arrive

What to do while you wait

A few habits limit damage and speed the visit, without worsening the clog with products that do not belong in a pro kitchen.

  1. 01

    Stop using the blocked station

    Do not keep forcing the overloaded drain: every pan emptied worsens backup and standing water in the kitchen.

  2. 02

    Collect fats separately

    Empty oils and fats into a container rather than the sink so you do not thicken the deposit already in the pipe.

  3. 03

    Avoid chemical unblockers

    They rarely dissolve a dense grease clog, complicate our work and damage your pipes and joints.

  4. 04

    Clear access to the network

    Free space around floor drains and the grease trap so the technician can start without wasting time.

Transparent pricing

What determines the price

Our call-outs start from €72.60 incl. 21% VAT (non-residential premises).

For a restaurant, controlled pricing is part of running the business. The rate depends on clog type, how much of the network needs jetting and the method required: a full high-pressure clean of the circuit is not a simple siphon clear. Night, weekend or holiday work may carry a surcharge, stated clearly before we come.

We only close once flow is fully restored. Call us: we answer price questions directly and, if you want, propose a preventive maintenance rhythm matched to your covers.

Benefits

  • Work outside service or after closing
  • Kitchen line and grease trap treated together
  • Kitchen floor drains included
  • Planned maintenance to avoid stoppages
  • Traceability of removed grease
  • Dedicated contact for your venue

Equipment & techniques

High-pressure jetting for greasy pipes Suction truck for grease traps Inspection camera for kitchen lines Floor and worktop protection Waste transfer note

FAQ

Frequently asked questions

Question not on the list? We answer it by phone, no obligation.

+32 2 000 00 00
How much does restaurant unblocking cost?

Our call-outs start from €72.60 incl. 21% VAT (non-residential premises). The rate depends on clog type, how much of the network needs jetting and the method required: a full high-pressure clean of the circuit is not a simple siphon clear.

Can you work without me shutting the kitchen mid-service?

That is exactly how we work with hospitality. We schedule around your service hours: early before opening, afternoon between rushes, or late after closing. If a total blockage stops you serving, we treat the emergency as priority. Goal: restore flow while limiting downtime of your trade as far as possible.

Why do professional kitchen drains clog faster?

Because the volume of grease, oils and residue is nothing like a home. Materials set against the walls, the grease trap fills faster, and the service rhythm accelerates build-up. It is not necessarily an install fault: it is normal load on a hospitality network.

My grease trap fills very fast: is that normal?

Often yes, especially with many greasy covers. A well-sized separator still fills: empty before saturation. If the trap overflows regularly, we also check the line downstream: solidified deposit behind the trap speeds returns.

Is preventive maintenance really better than an emergency visit?

In practice yes for service continuity. A planned visit outside hours costs less in lost turnover than a stop mid-rush. We set a rhythm with you matched to your volume, with no unnecessary package.

Can a blocked drain cause trouble in a hygiene inspection?

Yes. Standing water, smells and visible grease are sensitive points. Keeping trap and lines in order, with emptying traceability, helps present a clear history if inspected.

Is the price of a restaurant visit stated in advance?

Yes. We assess clog type, network scale and method, then give a clear estimate. Any out-of-hours surcharges are stated clearly, with no surprise on the invoice.

When should you call a drain technician straight away?

Some signs mean the blockage is no longer local: waste water backing up into a shower, sink or toilet, several fixtures draining slowly at the same time, water rising from a yard gully, or a sewer smell that lingers despite ventilation. In those cases, avoid reaching for chemical drain cleaners again and again: they attack seals and pipework without reaching a blockage further down the run.

Coverage area

Present in Brussels, in Wallonia and in Flanders

42

cities served · drainage

Click a marker to open your city page.

Why Van Dijk Home

A kitchen stopped mid-service costs more than any visit. That is why we work outside your hours, treat line and trap together, and agree a rhythm instead of waiting for the next emergency. Up to 2 years warranty on labour; parts carry the manufacturer’s warranty.

Restaurant unblocking: need help? Call us to check our availability.

Related services

The right fix for every problem

Drainage
Call now · 24/7 WhatsApp
Emergency 24/7 WhatsApp us