
Overijse · 3090
Roof insulation à Overijse
Insulation of pitched roofs and lofts, from the inside or as sarking. In Overijse every job starts with the same question: how to get to it.
21 km from our depot in Grimbergen
What that changes here
On the periphery a lot of owners insulate the roof themselves, and that is where we find the most damage: insulation pushed up against the roofing underlay, no air gap at all, a vapour barrier full of gaps. We put the ventilation right first, the insulation after.
In the grape region the houses often sit on a slope, on the edge of the Sonian Forest. That means long roof slopes, a lot of leaves and access that is far from straightforward for a scaffold. We plan these jobs with access as the first question, not the last.
What we get called out for in Overijse
In Overijse every job starts with the same question: how to get to it. Houses on a slope, curving drives, gardens running up to the forest — access sets the schedule here and sometimes the method itself. Then comes the usual: long slopes, heavy leaf fall, valleys that block up.
Overijse porte le code postal 3090 et se situe in the grape region. Notre équipe part de Grimbergen, à 21 km : nous y planifions l’isolation de toiture en même temps que les chantiers de Wezembeek-Oppem, Kraainem et Woluwe-Saint-Lambert, pour qu’un déplacement serve plusieurs toitures.
- 01Visit
- 02Preparation
- 03Fitting
- 04Inspection
The full technical detail of this service is on the page Roof insulation.

A ventilated air gap, otherwise the insulation damages the roof structure
0492 95 94 94The service in detailAll services in OverijseCommon questions
Pour un devis, la visite à Overijse se fixe en général sous quelques jours ouvrés. Nous partons de Grimbergen, à 21 km, et nous groupons nos visites par secteur : si un chantier tourne déjà cette semaine à Wezembeek-Oppem ou Kraainem, cela peut aller plus vite. En cas de fuite active, nous venons d’abord bâcher et sécuriser ; l’isolation de toiture n’est chiffrée qu’ensuite.
The Flemish and Brussels grants change every year and depend on your situation, the dwelling and the contractor. We supply the invoices and technical data sheets required; the application is made to the relevant body. We do not quote amounts that will no longer be valid in six months.
For a pitched roof, aim for 18 to 24 cm of mineral wool or PIR depending on the material, to meet the requirements in force. In an existing roof structure the space between rafters is limited: you then add a second layer under the rafters, crossing the joints.
The same service nearby
Free quote
Roof insulation à Overijse
We come out, we go up onto the roof, we photograph. The quotation follows within 24 working hours, item by item.
Not sure about your roof?
The visit costs nothing and the quotation follows within 24 hours. One call is enough to know where you stand.

