Home renovation companies in Luxembourg

Confirm the autorisation d'établissement

Every regulated building trade in Luxembourg operates under an autorisation d'établissement — ask for the number and check it against the Ministry's register.

A contractor who can't produce the autorisation number, or who trades under a name that differs from the one on the document, should not sign your contract.

Ask about liability insurance

Any company touching structure, roofing or load-bearing elements is liable by law for 10 years for structural defects. Insurance for that liability is not compulsory for contractors in Luxembourg, so ask whether the firm holds décennale or professional liability insurance and request a current certificate naming your project scope.

A certificate older than twelve months, or one that lists a scope different from the work being quoted, means you are not actually covered.

Require an itemised scope and schedule

A serious contract lists labour, materials, allowances, and a working schedule with milestones — not a single lump sum.

One-line quotes like "Bathroom renovation — €12,500" hide what is included, invite change-order disputes, and should be refused outright.

Negotiate a staged-payment structure

Payments should follow milestones — a modest deposit, then installments tied to completed stages, with a retention held until final sign-off.

A contractor who asks for 40–50% upfront before any work is booked is protecting themselves at your expense — walk away.

How much does a kitchen renovation cost in Luxembourg?

A full kitchen renovation in Luxembourg typically runs €8,000–€25,000 excluding VAT, covering demolition, plumbing and electrical rework, cabinets, worktop and appliances. The swing comes from cabinet range, worktop material and appliance tier. On a main residence at least 10 years old, the building works can be invoiced at the 3% super-reduced VAT rate instead of 17%; fitted kitchen units are furniture and stay at 17%.

What does a full bathroom renovation cost?

Expect €5,500–€18,000 excluding VAT for a full bathroom refit in Luxembourg, covering demolition, plumbing rework, tiling, fixtures, and electrics. Walk-in showers, heated floors and large-format tiles push the project into the upper half. The 3% super-reduced VAT can apply to the works on a main residence at least 10 years old; bathroom furniture and mirrors stay at 17%.

How much per m² for a full apartment refit?

A full apartment refit in Luxembourg typically lands between €900 and €1,800 per m² excluding VAT, all trades bundled. The lower end assumes sound electrics and a cosmetic refit; the upper end covers rewiring, plumbing relocation, and new kitchen and bathroom. Architect fees and planning permissions sit on top.

What does external wall insulation cost?

External wall insulation typically runs €80–€180 per m² of facade in Luxembourg before any Klimabonus reimbursement. The spread reflects insulation thickness, render system, and whether scaffolding is already in place. Klimabonus 2026 offsets part of the eligible work up to defined ceilings — confirm current rates on climate.public.lu.