
Velux roof window installation
in Uccle
A green, residential Brussels municipality, Uccle lines up mansion houses, interwar blocks and villas in the upper districts. Opening up, fitting and weather-sealing roof windows, with a neat interior finish.

The context in Uccle
Why here in particular
A green residential Brussels municipality, Uccle lines up town houses, interwar buildings and villas in the upper neighbourhoods. In practice, Mansards and dormers multiply the number of junctions: that is almost always where the water gets in.
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 Uccle 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 Uccle
The questions we get asked most often before this kind of job.
Do you need a permit?
Often not for a window in the plane of the roof, sometimes yes depending on the municipality and the area. We check beforehand, which saves a nasty surprise.
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.
Do you come out to Uccle with no extra call-out charge?
Yes. Uccle 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 Uccle
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 Uccle · Everything about roof window installation
A quote for Velux roof window installation in Uccle?
On-site visit, detailed costing within 48 working hours, with no obligation on your part.
