Quote: roof window
E.g.: fitting a Velux roof window in a converted attic
State replacement, enlargement or a new opening. For an existing window, send its readable reference and safely accessible photographs. Identify covering, room and expectations for daylight, view, opening and blackout. VELUX is a brand; request the exact reference of any proposed product.
Choose position and opening
Check dimensions, operating height, sash clearance and maintenance access. An opening in the roof slope does not automatically fit between rafters without changes. Clarify frame adaptations before any cutting.
Match window and covering
VELUX distinguishes flashings by covering material and profile. Request a system compatible with the window, pitch and actual roof. Specify connections to underlay, insulation and air sealing around the opening.
Compare useful performance
Request the complete model’s data rather than pane count alone. Define thermal, noise, daylight and solar-protection needs. Distinguish internal blackout blinds, external protection and room ventilation; one option need not satisfy every need.
Define controls and finishes
For powered operation, check supply, controls, maintenance access and accessory function. Specify internal reveals, painting, electrical connection and disposal. Do not assume these are all included in the product price.
Check procedures before work
Confirm the project with the municipality before ordering. Guichet.lu describes the permission framework and local rules for alterations. Discreet integration in a roof slope does not establish exemption.
Indicative prices in Luxembourg
On quotation
Compare an identified window with its flashings and complete installation. Separate opening alterations, roofing layers, internal finishes and accessories. Replacing with the same size does not exclude work on connections or damaged surroundings.
Subsidies and grants
No grant is deducted from the budget shown here. If a quote mentions support, request the exact scheme and confirmation of your eligibility before including it in financing.
Frequently asked questions
Does the same size mean no additional work?
Check references, flashings and surrounding condition; dimensions alone do not prove this.
Does triple glazing guarantee a grant?
No. Support depends on the scheme and project conditions, not pane count alone.
Is the structure always left untouched?
It depends on the opening and frame. Have changes assessed before cutting.
Does motorisation include electrical connection?
Check the chosen supply and included work; these should appear in the quote.