Quote: basement conversion
E.g.: cellar turned into a playroom or office
Turning a storage cellar into occupied space involves more than installing partitions. Describe use and frequency: laundry, leisure, office and bedroom are different projects. Confirm feasibility before ordering finishes.
Assess the cellar
AQC links basement design to use and water exposure. Investigate signs, causes and surroundings before lining walls. A single reading cannot guarantee no future ingress.
Confirm intended use
Ask the municipality and designer about use, finished height, light, access and safety. Do not assume internal work needs no procedure or that an office avoids all occupied-space requirements.
Separate air, moisture and radon
Design air renewal separately from drying and dehumidification. Luxembourg’s Health Directorate offers radon measurement for resident households; describe the future basement use when contacting it. A moisture check does not measure radon.
Keep services accessible
Locate heating plant, meters, valves and inspection points before planning rooms. Specify maintenance access, necessary separation and service alterations. For wet rooms, assess drainage and any lifting system’s operation and maintenance.
Resolve constraints before proceeding
Do not approve linings that conceal unexplained defects. Request checks before enclosure and the proposed solution’s limits. Artificial light or a water-resistant finish alone does not establish suitability for the intended use.
Indicative prices in Luxembourg
On quotation
Define two scopes: making the space suitable for its intended use, then fitting it out. Identify assessed, included, provisional and excluded work. Prerequisites should not disappear behind a total square-metre rate.
Subsidies and grants
Assume neither general conversion funding nor exclusion from every scheme. Assess potentially eligible work for the case without deducting aid before confirmation.
Frequently asked questions
Is visibly dry enough?
No. Assess the space for future use and necessary investigations rather than one visit alone.
Does a dehumidifier replace ventilation?
No. Define separate functions: removing moisture alone does not renew the air.
Can it become a bedroom?
Confirm feasibility and conditions before buying materials. A cellar window is not approval.
Can a standard duration be given?
Prior investigations and corrections affect it. Request a schedule stating the conditions for starting finishes.