Old Town and stepped streets
Old stone houses, thick party walls, outdoor staircases, windowless rooms. The stone stays cold all year and condensation settles on it: black patches appear first at the bottom of walls and in the corners.
Menton, Garavan, Carnolès
Menton has the mildest climate on the coast, and that is exactly the problem: a sheltered bay, little wind, humidity that never really drops. In the Old Town, stone houses are stacked along stepped streets, with party walls that never dry and rooms with no opening to the outside.
We remove black mould from walls, ceilings, shower joints and cold corners — without opening up partitions, without painting and without a building site. Send a photo and you get the rate, the surface counted and the final figure before we travel out.

The local building stock explains most cases. Here is what comes up again and again.
Old stone houses, thick party walls, outdoor staircases, windowless rooms. The stone stays cold all year and condensation settles on it: black patches appear first at the bottom of walls and in the corners.
Large volumes, high ceilings, north-facing bedrooms the winter sun never reaches. Mould settles on window reveals and along cornices, where the wall is coldest.
Many homes in Menton are lived in for only part of the year. Shutters closed, no airing for months, and on opening up you find mould on the bathroom ceiling and behind the furniture.
Around Carnolès and towards the port many ground floors are half buried. Salt efflorescence rises from the floor, plaster lifts along the bottom of the wall, and the cellar feeds spores to the whole floor above.
Example of a treated surface: visible mold is cleaned, the area is sanitized and prepared to stay clean.
Before
AfterTreatment of affected surfaces with suitable products, 3-month guarantee. First pass €25 per m² of surface actually treated — not the floor area of the room, but the area we really work on — and every further pass cheaper than the one before. Visible mould needs 3 to 5 passes, an old infestation 5 to 15. Clean surfaces in the same room are treated preventively from €15/m². We clean visible mold without breaking walls, painting or heavy renovation. Rates and worked examples
Minimum call-out in this town: €150 (zone A), travel included.
Cause diagnosis and room climate survey — surface temperature readings, humidity, dew point, ventilation, with a written report. A separate service, €150 in zone A and €200 in zone B, credited against treatment ordered within 30 days. What the report contains
We also treat cellars and outdoor surfaces — facades, plinths, terraces — from the ground, up to 4 m, on an individual quotation.
After treatment we can also provide simple cleaning of the room. Cleaning is available at €25 per hour, minimum 3 hours, excluding construction waste.
We cover the whole area.
Menton is in zone A: the minimum call-out is €150, travel included. This is the sector we are in most often, so lead times here are usually the shortest.
It is not harmless, especially in a bedroom or a bathroom. Spores circulate in the air and affect asthmatics, allergy sufferers, small children and older people first. That is why we treat the visible surface as a priority, and then the whole room when it is a damp one.
That is everyday life in Menton. Stepped streets, no parking at the door: where equipment and water have to be carried by hand an access surcharge from €40 applies, quoted in advance from the address.
We work regularly for absent owners. The quotation is made from photos, access is arranged with a neighbour, a caretaker or an agency, and you receive before-and-after photographs with the detailed calculation.
The service area is intentionally focused so we can stay realistic and responsive.
Send a photo, the city, approximate surface and your availability. We reply with the likely price and possible schedule.