About Us

Introducing Capital Water Treatment

The company began in London’s West End but it soon became apparent that a much larger facility was needed to cope with demand, so Capital Water Treatment moved its head office to Croydon, where it remained for many years. In April 2018, due to continued expansion the head office relocated to Redhill in Surrey, where we now have over 8,000 square feet incorporating offices, production and maintenance areas.

Capital Water Treatment directly employs a team of full-time service engineers and installation personnel who between them have a combined experience of over 150 years within the market place, and also offers full service cover for the whole of the United Kingdom and Eire.

Capital Water Treatment offers a bespoke design service for new installations and provides hardware, installation, contract maintenance and breakdown cover and servicing of all types of water treatment and water purification equipment throughout the UK and Eire, within the healthcare, industrial and laboratory markets.

The company works extensively, but not exclusively within the health markets, including NHS and Private Hospitals, with specialist fields including Renal Dialysis and Sterile Services.

We also have extensive expertise in the industrial markets covering boiler feed water, process water, product water and many other areas where purified or treated water is required.

In addition our customers include Property Management Companies, Schools, Hotel and Leisure Facilities with regard to L8.


Our Products and Services include:

Manufacture and Sale of water treatment equipment:

  • Water softeners
  • Reverse Osmosis
  • De-ionising equipment
  • Filtration UV sterilisation
  • Multi media filters
  • Bespoke project design
  • Complete water treatment packages
  • Chlorine dioxide

Services Offered:

  • Installation
  • Maintenance
  • Service contracts
  • Breakdown servicing
  • BS8558 Disinfection

L8 Compliance:

  • Risk Assessments (RA)
  • Cleaning and sanitisation of tanks and down services
  • Sampling (LP, chemical and microbiology)
  • Monthly, quarterly and annual water hygiene services

Spares and Consumables:

  • Softener salt
  • Resins – Softener and De-ionising
  • Granular Activated Carbon (GAC)
  • Membranes
  • Filters
  • Variety of spares for water softener and RO units
  • Chemicals

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