The quiet resolve of a Geneva house.
OSVIA has installed and serviced water purifiers since 2006. Where the house comes from, what it defends, and why it chose to put water back at its source.
02The story
A house told in five chapters.
The origin, the conviction, the ground, the hands, and water returned to its source. Everything else follows.
2006, Geneva
The house was born on a Geneva building site, from a rule never retouched: no installation without a prior analysis. It grew that way, file after file, measurement first, equipment second, servicing always. Twenty years on, that rule travels with it, across the border, to the same standard.
The first analysis entered in the house register.
The health heritage
A home passes on its walls, its light, its habits, and the water that runs through it every day. We call that the health heritage, and it knows no nationality: know the network, size precisely, keep the file of every installation, come back each year. It is the same trade in Gex, in Annemasse or in Geneva.
households entrust their water to the house, in 2026.
The last kilometre
Public utilities do remarkable work up to the meter. Beyond it begins a private domain: building risers, tanks, taps, decisive metres, particular to each building, under the responsibility of the people who live there. That last kilometre is the trade the house chose: measure it, equip it where useful, service it over time.
“The public network ends at the meter. Our work begins there.”
The technicians
No installation has ever been subcontracted. Every technician is recruited, trained and certified by the house before their first visit, and then it is the same person who returns, year after year, for servicing and readings. You know their first name; they know your installation. It grows more slowly than a network of subcontractors, and that is precisely why people entrust us with a home.
of technicians trained and certified by the house.
Water in its rightful place
Taking back your water also means no longer bringing it from far away. Water controlled at the source, served in glass, still or sparkling, replaces the packs you carry, store and throw away. The right gesture fits in a discreet object, in glass, stainless steel and nickel, serviced by the same maison for twenty years. This is our idea of sustainable: understated, and held over time.
“Putting water back at its source means putting it back in its rightful place.”
03The timeline
Twenty years, one standard.
Five dates are enough to tell the method: measure, install, service, never in any other order.
2006
Geneva, first installation
The house was born of a job: measuring the water of a flat in Eaux-Vives, then equipping it. The method has not changed since.
2011
The in-house school
No installation entrusted to third parties any more: every installer is trained and certified by the house before their first visit.
2015
A measurement before, a measurement after
The protocol becomes systematic: two analyses frame every installation. We do not promise, we record.
2020
Scheduled servicing
The house now lets its clients know, calendar tracked, cartridges prepared, annual visit scheduled.
2026
ANNA by OSVIA
High-performance membrane purification, housed inside the cabinet: the synthesis of twenty years of practice.
04The team
One face, one name, the same person who comes back.
No installation is subcontracted. Every technician is recruited, trained and certified by the house, and then it is the same person who comes back, year after year, for servicing and readings.
“You know his first name; he knows your installation.”
It is slower to grow than a network of subcontractors, and that is precisely why people trust us with a home. The white polo with the red drop, you will see it again: it is the same person, from the analysis to the last kilometre.
05The commitment
We do not leave a home until its water is perfect.
06The register
The heritage, in numbers.
households equipped and looked after
years of uninterrupted mastery
of installers certified by the house
analyses frame every installation, before and after
House register, Geneva, January 2026
06The legitimacy
Membrane purification already serves:
- Crewed spaceflight, ISS
- University hospitals
- Analytical laboratories
- Hospital dialysis
Documented performance of our membrane purification technology: 90–99 % rejection depending on the contaminant, membrane technical table, 2026. The detail by family appears on each product page, with its methodology.
The story continues at your tap.
The first page is written with a measurement, the analysis kit is complimentary.