No heating
The boiler does not start, stops by itself or shows an error code.
A fault understood before it is repaired, with a time slot agreed by phone. We work in Hoeilaart from Lembeek.
Repairs in Hoeilaart (1560): Plomberie Van Molder is based in Lembeek, in the municipality of Halle, and works in Hoeilaart, in Flemish Brabant.
A leak, no hot water, heating off or an unusual noise: tell us the symptoms, the brand and the model. The diagnosis targets the cause of the fault, not just its visible effect.
When the heating stops, hot water is slow to arrive or a leak appears, the priority is to understand the cause before replacing a part. We start from your observations (symptoms, the code shown, when it began) to guide the diagnosis and avoid unnecessary work.
The boiler does not start, stops by itself or shows an error code.
Uneven production, a long wait or unstable temperature.
Water on the floor, a drip on a fitting, pressure that keeps falling.
Banging, whistling, gurgling or an unusual smell near the appliance.
Note the symptom, the code if any and when it appears.
Turn off the water if a leak requires it; in case of gas or CO, leave the premises and call the emergency services.
The engineer checks the installation before proposing the right repair.
We look for the cause, not just the visible effect.
Findings and options presented in plain language.
The engineer comes to your address after a phone conversation.
Time slot agreed by phone; immediate arrival not guaranteed.
Find the meaning of your brand’s error codes and the safe steps to take before our visit.
Yes. Van Molder is based in Lembeek and works in Hoeilaart (1560) and the neighbouring towns. Give us your exact address to confirm availability.
Call 0470 868 853, message us on WhatsApp or use the contact page. Describe the problem, the appliance brand and your address in Hoeilaart.
Turn off the water supply if there is a leak and note the code shown. Do not open the appliance and do not keep resetting it.
Yes, see our error-code guide by brand. It helps you read the display but does not replace an on-site diagnosis.
The phone is reachable 24/7. The time slot is agreed during the call; immediate arrival is not guaranteed.
Vaillant, Bulex, Viessmann, Bosch, Junkers, Buderus, De Dietrich, Ariston and others, depending on the model and parts availability.
Plumber and heating engineer in Hoeilaart
Describe what you need and we will get back to you to agree a time slot.