Insulated chilled-water pipework
Water treatment program

Closed-loop Heating & Cooling

Chilled-water and heating circuits look sealed, but oxygen, leaks and bacteria still get in. We keep pipework, coils and heat exchangers protected.

Why Closed Systems Still Need Treatment

Every litre of make-up water brings fresh oxygen and dilutes the inhibitor. Mixed metals, stagnant sections and bacteria do the rest, often out of sight until a coil blocks or a pipe leaks.

Corrosion

Oxygen from make-up water, leaks and air ingress attacks steel and copper from the inside.

Bacteria

Microbial growth can consume inhibitors and drive under-deposit corrosion.

Fouling

Corrosion products and debris block strainers, fan-coil units and plate heat exchangers.

What the Program Includes

  • Water analysis and system review
  • Corrosion inhibitor selection and dosing
  • Microbiological treatment where required
  • Filtration where needed
  • Flushing and chemical cleaning
  • Passivation of new or modified systems
  • Periodic checks of inhibitor levels and make-up
  • Commissioning support

What You Get

  • Protected pipework, coils and heat exchangers across the building.
  • Stable chilled-water and heating performance without blocked units.
  • A clean start for new systems, with cleaning sequences and final protective treatment agreed in advance.
  • Early warning of leaks through regular review of make-up and treatment levels.

Tell us whether the circuit is for cooling or heating, and whether you need treatment of an existing system, cleaning, or commissioning support.