Cowdray Estate, one supply serving many properties.
A high-volume supply for several properties and estate operations. Running continuously since 2023, and passing UKAS-accredited testing every year.
Private water specialists in Surrey and Sussex
Nobody else is responsible for your water.
Who we are
We design, install and look after water treatment for homes, estates and commercial sites across the South East. Every system is overseen by Stefan Massingham MSc, a water chemist of thirty years, so you are left with water you never have to think about.
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From borehole to tap, the services we offer.
Thinking about your own private water supply?
It carries on through hosepipe bans and mains failures. We design it around your source and build it to run for decades.
Private water supplies
Building a new system?
Full design and install by our own engineers, specified to comply from day one.
Design and install
Need a Legionella risk assessment?
Legal compliance is not negotiable. We handle water hygiene, sampling, temperature monitoring and Legionella control across your estate or portfolio.
Water hygiene
System already installed?
Scheduled servicing, UKAS-accredited re-testing, and 24-hour callout for existing clients.
Servicing and maintenanceThe track record behind every job.
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20+
Years in business
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24h
Emergency line
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100%
UKAS-accredited testing
Supplies we’ve designed, installed and looked after.
One house, three sources, and everything else we found.
Two failed boreholes and a ground-source heat system that would not run. One supply across borehole, rainwater and mains, plus a chlorine-free pool.
An inherited system, put right and passed.
An inherited system that never quite worked. Passed the local EHO tests with flying colours.
Excellent water needs a light touch, kept up for years.
A chalk aquifer that produces excellent water and does not need fighting. Years of steady care: annual cleans, chlorination, UKAS sampling.
A private supply looked after on the county border.
A private supply we look after on the Surrey and Sussex border.
Water like carrot juice, made clear.
Water like carrot juice one day, coffee the next. In-house ultrafiltration: clear water from a clay-rich, variable source.
A silted spring and a saline borehole, both made to behave.
Several water treatment firms had already tried and failed. A redesigned RO that copes with fouling, saline water.
A National Trust restoration, right down to the water.
Treatment and chlorination for a house coming back into real use. A bespoke system for a National Trust restoration.
Don’t just take our word for it.
Stefan is one of those rare people who genuinely cares about doing a job properly.
When our borehole pump finally failed after 10 years, he was incredibly quick to respond and get us back up and running.
I am pleased to say it is now working perfectly and we are very happy to recommend you for your professionalism and attention to detail.
Always responsive, thoroughly professional and a pleasure to work with.
The paperwork clients ask about.
- CHAS accredited
- For contractors and facilities managers who need us on their approved list.
- UKAS-accredited laboratory testing
- All water analysis goes through a UKAS-accredited lab, so your compliance evidence is current and defensible.
- Twenty years of legislation experience
- DWI, HSE, Environment Agency, Legionella regulations. We know the rules that will catch you out if you get it wrong.
- Section 80 notice? Speak to us first.
- We deal with private supply notices regularly. Full water analysis, remedial plan and liaison, so you meet the requirements without over-specifying.
- Fully insured
- Public liability and professional indemnity to a level suitable for large commercial and estate work.
- Direct engineer access
- Same phone number, same team. No call centre between you and the person who knows your system.
