
Clean Water as a Service
We own and run the water plant. You pay for the water.
Uniwater designs, funds, installs, runs and maintains the whole treatment plant. You pay one predictable monthly fee for water held to an agreed spec, with no capital cost and no plant for your team to manage.
Who CWaaS is for
For businesses, factories and housing societies.
Clean Water as a Service is sold to commercial buyers, industrial buyers, and residential society management committees. Not to individual homeowners. For a home, we install BathSoft, HomeSoft, or a kitchen drinking-water system instead.
Commercial
Offices, hospitality, healthcare, education.
Drinking water on every floor that meets IS 10500. Soft water for hotels and laundries. The plant is ours; the building is yours.
Already running
- Techno India Group College, Joka · 2,000+ students (Kolkata, India)
- Techno India Group: “Jhore Jole Jongole” resort · Sundarbans resort (Kolkata, India)
- Heritage International School · School (Biratnagar, Nepal)
- Feel Good Restaurant · Restaurant (Biratnagar, Nepal)
- Contour Furnitures · Furniture factory (Kolkata, India)
Industrial
Manufacturing, process, quality-controlled plants.
DM water for boilers, plating, batteries, electronics. RO process water for F&B, pharma, beverage. Resin and membranes managed for you.
Water lines
Already running
- Acme Moulders · Furniture manufacturing, DM 1 lakh L/month (Kolkata, India)
- Kumar Plasto Platers · Manufacturing (Kolkata, India)
- Shivshakti Expellers · Manufacturing (Kolkata, India)
Residential societies
Housing societies, apartment complexes, gated communities.
Whole-society iron-free and soft water that protects every appliance in every flat, even on borewells running heavy iron and silt. Centralised drinking water on tap. The committee stops firefighting plant problems.
Already running
- BSM Enclave, Tulsidham Society · Residential society, 120 flats, 1 lakh L/day (Kolkata, India)
- Starwood, Chinar Park · Residential society, 284 flats, 30,000 LPH per train, two trains (N+1 redundant) (Kolkata, India)
The model
What changes when water is a service.
01
No capital cost.
We design, fund, own and install the plant. Nothing goes on your capex sheet, and you start paying only when the water meets spec.
02
Guaranteed to spec.
We agree a water-quality standard with you and back it with an SLA. Whichever number matters for your use (iron, hardness, TDS or conductivity) is held to that line.
03
We run it.
Monthly preventive visits, consumables, media, membranes and repairs are all included. Keeping the plant running is our job, not yours.
The five lines
Five water lines under one contract, each sized to what you need.
Drinking, iron-free, soft, RO process and DM. Each one carries its own SLA, sized at survey to your demand and your supply chemistry.
Drinking water
Potable water on tap on every floor.
Best for
We guarantee
- IS 10500 potability
- Monitored TDS
- Hygienic dispensing
Iron-free water
Flagship
Clear water with no smell and no rust stains.
Best for
We guarantee
- Iron below 0.3 ppm
- No staining
- Automated backwash
Soft water
Soft water, so appliances and surfaces stop scaling up.
Best for
We guarantee
- Hardness held to target
- Scale protection
- Self-regenerating
RO process water
Consistent low-TDS process water, on demand, to spec.
Best for
We guarantee
- TDS / conductivity to spec
- Assured flow
- Managed membranes
DM water
Ultra-pure demineralised water, polished to a conductivity target.
Best for
We guarantee
- Conductivity to spec
- Continuous supply
- Resin managed for you
How it works
From survey to running water.
Free water survey.
We test source water and map real demand on site. No quote without it.
We design and install.
The right plant for your readings, funded and engineered by Uniwater.
Water to spec.
Metered, monitored, delivered to the agreed standard from day one.
We keep it running.
Monthly engineer visits; media, membranes, and repairs all covered.
Already running
10 live sites, 2 countries.
Every site below is a real deployment under contract. Soft, drinking and DM lines have running references; the iron-free and RO-process lines are signing their first deployments now and will appear here once commissioned. We don’t name reference sites that don’t exist yet.
Homes on managed soft water
Soft water delivered per day
Students on managed drinking water
DM water delivered per month
Kolkata, India
BSM Enclave, Tulsidham Society
Residential society, 120 flats
1 lakh L/day
Kolkata, India
Starwood, Chinar Park
Residential society, 284 flats
30,000 LPH per train, two trains (N+1 redundant)
Kolkata, India
Acme Moulders
Furniture manufacturing
DM 1 lakh L/month
Kolkata, India
Techno India Group College, Joka
2,000+ students
Kolkata, India
Techno India Group: “Jhore Jole Jongole” resort
Sundarbans resort
Kolkata, India
Contour Furnitures
Furniture factory
Kolkata, India
Shivshakti Expellers
Manufacturing
Kolkata, India
Kumar Plasto Platers
Manufacturing
Biratnagar, Nepal
Heritage International School
School
Biratnagar, Nepal
Feel Good Restaurant
Restaurant
What makes it a service
A named engineer visits every month.
The same person, on the same schedule, doing preventive work before anything fails. Backwash verification, parameter testing, salt and media top-up, membrane checks, a written report you keep. The plant stays in spec because someone whose job is to keep it in spec is on site every month.
If you own the plant, running it is your problem. If you subscribe, it’s ours.
Your next step
Get a free water survey for your site.
One business day to an engineer assignment; five working days to a site survey and water analysis. The survey is free; you only pay if you decide to subscribe.


