Cracks are appearing or widening
Stepped cracking in a load-bearing wall, a gap opening above a window, separation between two sections of a building. We measure the opening and establish whether the movement is old, stable or still active.
Building expertise in Luxembourg
Building expert
You have noticed a defect in your house, flat or building site. We come, we measure, and we hand you a report you can use to decide and to assert your rights.
- Independent expert
- Report you can use with your insurer, your contractor or the court
- Site visits throughout Luxembourg
A defect in a building is rarely obvious at first glance. A crack may be harmless or it may signal structural movement. A damp patch may come from a roof, a buried wall or simply a missing extractor fan. Until the cause is established, quotes pile up and nobody takes responsibility for the repairs.
Our role is to end that uncertainty. We work in Luxembourg as an independent building expert, with no ties to a construction firm, a developer or an insurer. We record the facts on site, we explain where the problem comes from, and we set out the repairs needed and who may be liable.
You receive a written, dated and illustrated document that you can present to your insurer, your contractor, your managing agent or a court. It is often this document that unlocks a case that has been stuck for months.
Situations we deal with
Water is getting into the building
Ceiling stains after rain, streaks down a cellar wall, damp carpet under a window. We look for the true entry point, not just the spot where the water shows.
The work does not match what was agreed
Uneven tiling, render that has cracked while barely dry, insulation fitted with gaps, poorly finished waterproofing. We compare what was actually built with the quote, the drawings and standard practice.
You are about to take handover of a new home
Before you sign, we go through the property room by room and list every snag to record in the handover report, with matching photographs.
A dispute is building with a contractor
The contractor blames the neighbour, a subcontractor or the owner. A neutral technical survey brings the discussion back to verifiable facts and allows negotiation to restart.
You are buying a property and you have doubts
We assess the real condition of the building before purchase: structure, roof, damp, visible services, and we cost the work you should plan for.
Why call in an expert
You finally know where the problem comes from
Our diagnosis separates cause from symptom. You stop paying for surface repairs that fail again within six months.
You are no longer on your own against the professionals
Facing a builder or an insurer, a well-argued technical opinion changes the balance of the discussion. Exchanges become factual.
You commission the right work, at the right price
The report sets out the repairs actually needed and the order to carry them out. You approach contractors on a clear basis and compare like-for-like quotes.
Unsure about your building? Have it assessed.
Describe your situation in two minutes. We call you back and arrange the site visit.
How the survey works
01
First contact
You call us or fill in the form. We listen to your situation, tell you what is worth photographing, and arrange a visit.
02
Site visit
We examine the building as a whole, inside and out. Measurements, records, photographs, and your account of how the defect appeared.
03
Analysis
We cross-check our findings against the case file: drawings, quotes, invoices, correspondence, earlier reports. We settle on the cause that best fits the facts.
04
Report
You receive a written, illustrated report with our conclusions and recommendations. We remain available to explain it to your insurer or your lawyer.
The expert report
The expert report is the document that remains once the visit is over. It describes the building, the nature of the defects, their exact location, their extent and their likely cause, with photographs supporting every finding.
It is written for non-specialists: owners, managing agents, insurers, lawyers, judges. Every conclusion rests on a verifiable element, which makes the document hard to dismiss in a negotiation or before a court.
What the report contains
- Description of the building and the defects found
- Dated and located photographs
- Technical cause identified and the evidence supporting it
- Recommended repairs and the order to carry them out
- Elements useful for establishing liability
Where we work
We work across the whole of Luxembourg, from the industrial south to the north of the country.
Our visits regularly cover Luxembourg City, Esch-sur-Alzette, Differdange, Dudelange, Ettelbruck, Diekirch, Mersch, Strassen, Bertrange and Mamer, as well as neighbouring communes.
Luxembourg-Ville, Esch-sur-Alzette, Differdange, Dudelange, Ettelbruck, Diekirch, Mersch, Strassen, Bertrange, Mamer.
Frequently asked questions
They record a defect, investigate its technical cause and describe it in a written report. They do not carry out the repairs themselves, which guarantees they have no interest in steering the diagnosis towards one solution over another.
We generally offer a visit within a few days of your call. In urgent cases, such as active infiltration or a fast-moving defect, we look for an earlier slot.
It is not compulsory, but it is often useful to report the claim in parallel. Our report can then be sent to the insurer or used against the report of the expert they appoint.
Any documents you have: drawings, quotes, invoices, the handover report, correspondence, photographs taken when the defect first appeared. The fuller the file, the more precise the analysis.
A private expert report is a technical document that courts do examine. It does not replace a court-ordered expertise, but it supports a claim, backs up a complaint and guides the discussion.
Yes. We regularly work with managing agents and owners' associations on common areas: façades, roofs, cellars, buried services, and defects affecting several units.
Related surveys
Let us discuss your building
Describe the defect in a few lines. We will call you back to arrange the visit and tell you straight away what is urgent and what can wait.
AC Expertises — Arap CETIN, Expert en bâtiment
21 rue du puits romain (Bâtiment Colors Business Center), L-8070 Bertrange