Velux roof window installation
in Overijse
On the building stock of Overijse — post-war villas on sloping ground, old greenhouses, complex roofs with many pitches — Velux roof window installation calls for a method that fits. Opening up, fitting and weather-sealing roof windows, with a neat interior finish.
The context in Overijse
Why here in particular
The tree cover keeps the roofs damp and the gutters fill up twice a year rather than once. So we adapt the equipment and the method rather than running a standard protocol.
A roof window that leaks is almost never the window: it is the flashing. A sealing kit that does not match the type of roof covering, and water gets through the first winter that comes.
- Quote
- Priced after a site visit, free of charge and with no obligation.
- Duration
- One day per window, interior finish included.
- Call-out
- Included in Overijse and neighbouring municipalities
How it runs
How the job runs
The same protocol everywhere, adapted to what the visit reveals on site. Nothing is decided from the pavement.
- Positioning study
- Trimmer if needed
- Fitting the window and the original flashing kit
- Joining the roofing underlay
- Roof insulation in the outskirts
- Plasterboard-lined reveal finish
Locating
Position between rafters, sill height, orientation. We check the planning rules if the facade is visible from the street.
Opening
Cutting through roof covering and the battens, a trimmer if needed.
Fitting the frame
Levelling, fixing, roofing underlay connected.
Flashing kit
Joint matched to the material: tile, slate, corrugated sheet.
Interior finish
Reveal insulated and boarded, square return at the top, splayed at the bottom.
Frequently asked questions
Velux roof window installation in Overijse
The questions we get asked most often before this kind of job.
Which size to choose?
The width depends on the spacing between the rafters. We measure before ordering: that is what stops anyone butchering the roof timbers.
Can it be applied to a slate roof?
Yes, with the matching flat flashing kit. The kit is not the same as for a profiled tile.
And condensation?
It comes from a lack of ventilation, not from the window. A reveal cut square at the top and sloped at the bottom lets air circulate against the glazing.
Do you come out to Overijse with no extra call-out charge?
Yes. Overijse is one of our 17 municipalities: the call-out is included in the quote, not added at the bottom of the invoice.
Other work in Overijse
While we are on site
Combining two jobs in one visit brings the invoice down. We suggest it when it makes sense, never to pad the quote.
Velux roof window installation in the neighbouring municipalities
All our work in Overijse · Everything about roof window installation
Your job in Overijse
On-site visit, detailed costing within 48 working hours, with no obligation on your part.