Cost: internal metal staircase
Request a defined assembly: structure, treads, flight and opening protection, supports and fitting. Compare options for the same levels and work instead of grouping spiral and glass into an assumed higher price tier.
Editorial update on 18 September 2026
Price the same geometry
Separate design, structure, treads, risers, landings, handrails and opening guarding. Identify references and finishes. Request explicit options rather than assumed wood, glass or spiral premiums.
Include building interfaces
Add survey, removal, transport, lifting, assembly, anchors, site protection and making good. For changed openings, define preliminary works and confirm formalities with the municipality. Guichet.lu is being updated; no exemption thresholds are repeated here.
Compare totals, reservations and schedule
Request taxes, payments, exclusions and change terms. Identify unresolved design before a fixed price. Deduct no assumed aid; wider adaptations require separate checks. Distinguish design, procurement, manufacture and fitting without a universal lead time.
The three budget levels
Where your money goes
- DesignOn quotationSurvey, drawing and structural design.
- StairOn quotationStructure, treads and finish.
- ProtectionOn quotationFlight, landings and opening.
- WorkOn quotationRemoval, anchors, fitting and interfaces.
What makes the price vary
Geometry
Levels, opening and passage.
Components
Chosen treads and protection.
Supports
Existing structure and adaptations.
Access
Transport, assembly and temporary stage.
Indicative scenarios
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 a central stringer require a straight stair?
No. Support system and shape differ; request the proposed drawing.
Does a spiral always suit a small opening?
No. Check clear passage, headroom and use.
Can the old stair stay until fitting?
Organise around removal and supports, with safe temporary access where necessary.
Do timber treads make it silent?
Not automatically. Request a whole-design response to noise and vibration.
Your exact price, in 2 minutes
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