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LTHW & CHW / HEATING & CHILLED WATER

Chemical cleaning, flushing & dosing

Purposeful cleaning and treatment for the circuits behind your building’s heating and cooling. AP Environmental provides chemical cleaning, flushing and dosing on LTHW and CHW systems.

Start with the system. Plan the treatment.

Low-temperature hot water (LTHW) and chilled water (CHW) systems need a scope that reflects their installation and condition. Whether the work relates to a new project, an alteration or an existing circuit, share the specification and system history so the cleaning, flushing and dosing requirements can be discussed together.

commercial water system plant room

What we can help with

  • Chemical cleaning of LTHW and CHW circuits
  • System flushing as part of the agreed cleaning scope
  • Chemical dosing following the specified treatment requirements
  • Coordination with site access, isolation and the project programme

When to get in touch

Get in touch when a project specification calls for cleaning and treatment, when work has changed an existing circuit, or when a water-quality concern needs a practical response. Existing results and treatment records help explain the starting point.

Agreeing the scope

Agree the circuits included, the cleaning and dosing scope, any testing required and the records expected at completion. If the installation also needs ongoing testing or filtration, include that in the initial enquiry.

Helpful information to have ready

  • System type, estimated volume and drawings if available
  • Recent test results and existing treatment information
  • Equipment details, specification and planned handover date
  • Available access, isolation points and downtime restrictions

You can enquire before you have every detail. Start with the information available and we can discuss what else is needed.

Your questions, answered.

What do LTHW and CHW mean?+

LTHW means low-temperature hot water, usually referring to a heating circuit. CHW means chilled water, used in cooling systems. Tell us which circuit the work concerns; domestic hot and cold water services are a separate enquiry.

Can I request a clean, flush and dose together?+

Yes. These are part of the service range. Share the project specification and any existing results so the combined scope can be discussed.

What if the system volume is unknown?+

You can still enquire. Send drawings, equipment details or the information you do have. Any further information needed to prepare a quotation can then be identified.

CONNECTED SERVICES

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PLAN YOUR NEXT STEP

Let’s talk about your building.

Tell us the location, the service you need and your timescale.

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