References from our job sites in France
Everything on this page happened. The projects below are public: the clients agreed to be named, and several were covered by the press. We have not yet worked in Thailand, and we will not pretend otherwise. When the first Thai pilot sites are done, they will appear here.
RATP: 400 m² of glazing in one night
The Paris transport operator needed glazing above its tracks cleaned without stopping trains. With its usual method, the same work would have taken several nights.
CleanAlta cleaned 400 m² of glass in a single night, with no interruption to traffic. RATP reports that intervention time was divided by five.
Photo: glazing cleaned by drone on another Paris site.
Saint-Gobain Recherche: from a test to a contract
Saint-Gobain's research centre near Paris has large glazed façades over several floors. We combined a tethered drone for the upper levels and a water-fed pole for the lower ones and the entrance.
Heated osmosed water, no detergent. After the first job, Saint-Gobain Recherche signed a contract for two cleaning passes a year.
Hospital windows on the 8th floor
Windows on the eighth floor of a working hospital, cleaned without closing services and with no one working at height during application. For hospitals, this removes the risk of a worker on a rope outside patient rooms and the noise of a gondola.
The “periodic table” façade
The Institute of Molecular Sciences at Orsay has a façade of coloured glass panels laid out like a periodic table. We cleaned it with a drone and an aerial platform working together, and restored the transparency of every panel.
In the press
Three French media covered the RATP job at Paris Saint-Lazare.
Other references
Veolia and Bouygues have also authorised CleanAlta to cite them as references: gutters and downpipes on a Veolia industrial site, and glazed frames on a Bouygues renovation site in Paris. RATP has since commissioned CleanAlta on other sites, including Marne-la-Vallée Chessy station. Other clients, including public hospitals and private companies, prefer not to be named; we respect that and we will do the same for Thai clients who ask.
Photos from our job sites
All photos are from CleanAlta jobs in France in 2025 and 2026. No stock images.
On video
Unedited footage: set-up, tethered flight, spraying and rinsing.
About these references
Can I talk to one of your clients?
Yes, for serious projects. Ask us and we will put you in touch with a client whose building is similar to yours, with their agreement.
Why no Thai references yet?
Because we have not flown in Thailand yet. We prefer to show real French jobs than invented Thai ones. The pilot program exists to build the first Thai references with clients who want to be first.
Have a building in Thailand that is hard to clean?
Send us a few photos, the address and the approximate height. We will tell you honestly whether a drone, a water-fed pole or a platform is the right tool, and whether your site could join the pilot program.