How to start your own water business?
A Business That Never Runs Dry
Water is not a luxury. It is not a trend. It is a daily necessity – for every home, every office, every school, every hotel.
That is why a portable water refill business in Kenya can be such a smart move. People will always need clean drinking water. And with bottled water getting more expensive, more families are switching to refill stations.
But wanting to start and knowing how to start are two different things.
This guide will walk you through every step – from documentation to equipment to daily operations. No fluff. Just what you actually need to do.
Is a Water Business Right for You?
Before we get into the steps, ask yourself these three questions:
- Do you have a good location in mind? Foot traffic is everything. Near a bus stop, market, or estate entrance is ideal.
- Do you have startup capital? You will need between Ksh 250,000 and Ksh 660,000 to start properly.
- Are you ready for daily operations? A refill station needs to be open long hours, 7 days a week.
GET IN TOUCH
Schedule a Visit
If you answered yes to these, let us get started.
Step 1: Understand the Business Model
A portable water refill business in Kenya works like this:
- You install a commercial reverse osmosis machine at your shop.
- You treat raw water (from city supply or borehole).
- Customers bring their own containers (bottles, jerrycans).
- You fill them and charge per litre – typically Ksh 5–10.
You can also sell:
- Empty 20-litre jerrycans
- Small bottled water (500ml, 1 litre) for walk-in customers
- Monthly subscriptions for offices or households
Step 2: Get Your Documentation Right
You cannot open without the right papers. Here is what you will need:
| Document | Where to get it | Estimated cost |
|---|---|---|
| Business permit | County government | Ksh 5,000 – 15,000 |
| Water quality license | Ministry of Health / county health department | Ksh 10,000 – 20,000 |
| Single Business Permit | County government | Ksh 5,000 – 10,000 |
| NEMA approval (for larger operations) | National Environment Management Authority | Ksh 10,000 – 30,000 |
| Landlord consent letter | Your landlord | Free (but necessary) |
Tip: Start with the county health department. They will tell you exactly what your specific location requires.
Step 3: Choose the Right Equipment – The Most Important Decision
This is where most new business owners make a costly mistake.
They buy a cheap domestic reverse osmosis machine for Ksh 30,000–50,000. It looks like a bargain. But it is designed for a family of four – not a commercial refill station.
Within weeks, the membrane fails. Production drops. Customers leave. The machine breaks.
**You need a commercial-grade water treatment system designed for high volume – hundreds or thousands of litres per day.
What to look for in a commercial reverse osmosis machine:
| Feature | Why it matters |
|---|---|
| High daily output (1,000+ litres) | You will not run out of water during peak hours |
| Industrial-grade membrane | Lasts longer under heavy use |
| Automatic backwash | Keeps the membrane clean without manual work |
| Pre-filters (sediment + carbon) | Protects the membrane from dirt and chlorine |
| Storage tank (200–500 litres) | So water is ready even when demand spikes |
| Local availability of spare parts | Imported parts mean weeks of downtime |
Other equipment you will need:
- Storage tanks (raw water storage + treated water storage)
- Dispensing taps (for filling customer containers)
- TDS meter (to check water quality daily)
- UV steriliser (optional – extra protection if source water has bacteria)
- Water testing kit (for regular quality checks)
Estimated equipment cost: Ksh 150,000 – 400,000 depending on capacity and brand.
Step 4: Find the Right Location
A portable water refill business in Kenya lives on foot traffic. The best locations are:
- Near bus stops or taxi stages – People pass by daily
- Next to markets or shopping centres – High foot traffic
- Inside residential estates – Near the main entrance or gate
- Near schools or churches – Parents and congregants are regular customers
What to avoid:
- Quiet streets with no passing traffic
- Areas with multiple existing refill stations (oversaturated)
- Locations far from residential areas (no repeat customers)
Tip: Spend a few days counting how many people walk past a potential location. If it is less than 500 people per day, keep looking.
Step 5: Plan Your Water Source
Your water source affects your cost and water quality.
| Source | Pros | Cons |
|---|---|---|
| City water (Nairobi Water, etc.) | Consistent quality, already treated for bacteria | Monthly bills, sometimes high chlorine |
| Borehole | Cheaper per litre after drilling | High upfront cost, may need pre-treatment |
| Tankered water | No borehole or city connection needed | Expensive per litre, quality varies |
For most new refill stations: Start with city water if available. It is reliable and requires less pre-treatment.
If you use borehole water: Get a full water analysis first. You may need sediment filters, a softener, or UV treatment before the RO machine.
Step 6: Calculate Your Startup Costs
Here is a realistic breakdown for a portable water refill business in Kenya:
| Item | Estimated cost (Ksh) |
|---|---|
| Commercial reverse osmosis machine | 150,000 – 400,000 |
| Installation and plumbing | 20,000 – 50,000 |
| Storage tanks (raw + treated) | 30,000 – 80,000 |
| Shop fitting (taps, counters, flooring) | 30,000 – 80,000 |
| Initial filters and consumables | 10,000 – 20,000 |
| Licensing and permits | 10,000 – 30,000 |
| Rent deposit (2 months) | 20,000 – 60,000 |
| Signage and marketing | 10,000 – 20,000 |
| Total estimated startup | 280,000 – 740,000 |
Lower end: Small station in a cheaper location, used or smaller machine.
Higher end: Large station, prime location, brand new commercial water systems.
Step 7: Set Your Prices
Typical prices for a portable water refill business in Kenya:
| Container size | Price range |
|---|---|
| 1 litre | Ksh 5 – 10 |
| 5 litres | Ksh 20 – 40 |
| 10 litres | Ksh 40 – 70 |
| 20 litres (jerrycan) | Ksh 80 – 150 |
Pricing tips:
- Check competitor prices in your area
- Offer discounts for bulk refills (e.g., Ksh 100 for 20 litres instead of Ksh 120)
- Sell empty jerrycans as an extra revenue stream (Ksh 200–300 each)
- Consider monthly subscriptions for offices or regular households
Step 8: Market Your Business
You do not need a big advertising budget. Word of mouth and local visibility are enough.
Low-cost marketing that works:
- A bright, readable sign – Make sure people can see your prices from the road.
- Clean, professional shop – A dirty station drives customers away.
- First fill free or discounted – Get people to try your water once.
- Referral discounts – Give existing customers a discount for bringing new customers.
- Social media – A simple WhatsApp group for regular customers works wonders.
- Display your water test results – Builds trust. Customers want to know your water is safe.
Step 9: Plan for Ongoing Operations and Maintenance
A water treatment system needs regular attention. Neglect it, and your business will fail.
Daily tasks:
- Check TDS levels (should be below 50 ppm for RO water)
- Clean dispensing area and taps
- Record daily sales
Weekly tasks:
- Inspect pre-filters for clogging
- Check for leaks or unusual noises
- Sanitise dispensing taps
Monthly tasks:
- Test water quality (bacteria, TDS, pH)
- Clean storage tanks
- Check pressure gauges
Scheduled maintenance:
- Change pre-filters every 3–6 months
- Change RO membrane every 1–2 years (depending on usage)
- Professional servicing every 6 months
Warning: A broken machine means zero income. Plan for maintenance. Budget for it. Do not skip it.
Why House of Maji Is the Best Company to Visit When Starting a Water Refill Business
1. They Already Explain the Refill Business – In Detail
Our website has a section called “Water Refill Business Explained” that answers: What do you need to start? How much do you need? What documentation is required? What options of machines do you have? Is it profitable?
They are not guessing. They have already helped 44+ refill businesses get started.
2. They Do Proper Water Analysis First
You cannot choose the right water treatment system without knowing your source water quality. House of Maji starts with certified water testing – physical, chemical, and microbiological. They will tell you if your source water needs pre-treatment before the RO machine.
3. They Supply Commercial-Grade Reverse Osmosis Machines
A domestic machine will fail in weeks. House of Maji supplies commercial reverse osmosis machines designed for high volume – hundreds or thousands of litres per day. They design, supply, and install custom water systems for businesses.