Plumbing & heating in Halle, Lembeek and surroundings
Your comfort,
our trade.
Repairs, installation, servicing and replacement of your plumbing and heating equipment. A reliable local service for homeowners and businesses.

Our services
A complete service for your plumbing and heating needs, with professional, personalised support.
Installation
Installation of your heating and plumbing equipment.
Repairs
A suitable response to a breakdown or a leak.
Servicing
For optimal operation and a longer service life.
Replacement
Modernising your old equipment.
Descaling
Extends the life of your installations.
Sanitary plumbing
Installation and repair of your sanitary equipment.

A local company you can trust
Van Molder is a plumbing and heating company based in Lembeek (Halle). We support homeowners and businesses with their projects, from repairs to installation, servicing and replacement of equipment.
Discover the company
Heating
- Installation of boilers and heating systems
- Fast repairs when something breaks down
- Servicing for better performance and savings
- Replacement of old equipment
- Personalised advice

Plumbing
- Installation of bathrooms, toilets and washbasins
- Leak detection and repair
- Descaling and maintenance
- Replacement of taps and fittings
- Solutions for homeowners and businesses

Boiler error codes
Find the meaning of the main error codes of the major brands to help you better understand your installation.
At your service in Halle, Lembeek
and the surrounding area
We work in Brussels (19 communes), across the whole Flemish Brabant ring, in Halle, Lembeek and in Walloon Brabant.
See all townsPlumbing & heating advice
The questions we get asked most
Why does my boiler pressure keep dropping?
Falling pressure usually comes from a small leak in the circuit, a recently bled radiator or a worn expansion vessel. If the manual allows it you can top up slowly; if the pressure drops again, have the leak traced.
What does the error code on my boiler mean?
The meaning of a code depends on the brand, the model and sometimes a sub-code. Note the full code, check our error-code guide by brand, do one reset only if the manual allows it and call us if the code returns.
How often should a boiler be serviced?
It depends on the fuel, the type of appliance and the rules in your region. We tell you what applies to your equipment and give you the relevant documents after the visit.
Why have I lost my hot water?
Check that the appliance is powered, the pressure and any code shown. If heating is affected too, the cause is probably in the boiler; if only hot water is affected, a water heater or sensor may be at fault. Call us with that information.
What should I do about a water leak?
Turn off the water (the appliance’s stop valve or the main valve), protect the surfaces, mop up and take a photo. Then call us: the exact location of the leak helps us prepare the visit.
How do I unblock a sink or toilet without damaging the pipes?
Remove the waste you can reach, use hot water if the material allows it and a plunger. Avoid repeated use of chemical drain cleaners. If several fixtures back up or the blockage returns, call a plumber.
How do I request a service call?
Call us, message us on WhatsApp or use the form on the contact page, where you can attach photos. Tell us your town, the equipment (brand and model) and the symptom or code shown.
Do you handle emergencies, evenings and weekends?
The phone is reachable 24/7. The visit time is agreed during the call and immediate arrival is not guaranteed; we tell you what is possible and how to limit the damage in the meantime.
Have a question? Need a service call?
Our team is here to help with any request for repairs, installation or information.






















