Ventilation maintenance in Uccle

Uccle has a high share of family houses and villas, often renovated in stages across several decades. Hybrid installations are common: an MVHR unit fitted during an extension, coexisting with standalone extractor fans and original vents in the older part.

This kind of set-up calls for measurement before conclusions. Well-sized ductwork in the new part never compensates for an old room left without an air supply, and that is almost always where condensation appears.

The municipality is not only villas. In the Brugmann district and around Saint-Job stand apartment buildings from the 1960s and 1970s with shared extract risers, and in lower Uccle, towards Saint-Gilles and Forest, older terraced houses. Higher up, from Fort-Jaco to Vivier d'Oie and out to the edge of the Sonian Forest, wooded plots fill air intakes with leaves and pollen far faster than in town. Filters there foul within a single season.

The heat-recovery units met in renovated houses are often badged Zehnder, Renson or Vasco, with here and there a Lemmens from an earlier generation, mounted in the cellar or under the roof. The ductwork in these large houses is long, with a vent in every bedroom: the room-by-room airflow check, offered as an option, makes particular sense here. Owners who have put off servicing usually notice it first in the noise of the fans, which have to work harder to deliver the same airflow.

Houses almost always have a driveway or a garage, which makes bringing in equipment simple. You can book a weekday evening or a weekend day, and the report is sent to you once the service is complete. If the unit sits in an attic reached through a hatch, say so: the technician brings the ladder and allows the time it takes.