
CLEAN / TEST / TREAT
Heating & chilled water
Chemical cleaning, flushing, testing, dosing and side stream filtration for LTHW and CHW systems.
Explore this area ↗WATER TREATMENT · WATER HYGIENE · MECHANICAL
Chemical cleaning, testing and dosing for heating and chilled-water systems. Water hygiene, tank care, plumbing and mechanical installations across Hertfordshire and the surrounding areas.
Speak to AP Environmental · 07903 041706
WHAT BRINGS YOU HERE?
A system to treat, water hygiene to organise or practical work to carry out. Choose your starting point.
Clean, flush, test, dose or filter an LTHW or CHW system. Tell us about the circuit and the work required.
Discuss your system ↗02 / WATER HYGIENE & TANKSArrange sampling, temperature monitoring, disinfection, tank cleaning or refurbishment.
Plan water hygiene work ↗03 / PLUMBING & MECHANICALDomestic and commercial plumbing, mechanical installations and practical work from an existing report.
Discuss your project ↗FROM PLANT ROOM TO WATER OUTLET
AP Environmental brings together closed-system water treatment, water hygiene and practical plumbing and mechanical work. From heating and chilled-water circuits to storage tanks and hot and cold water services, the scope starts with your installation.
Work with us on a specific requirement or discuss several connected services. We welcome enquiries from facilities teams, mechanical contractors, property managers and homeowners.
About AP Environmental ↗OUR SERVICES
Ten specialist services across three connected areas. Find the work you need, then tell us about your site.

CLEAN / TEST / TREAT
Chemical cleaning, flushing, testing, dosing and side stream filtration for LTHW and CHW systems.
Explore this area ↗
SAMPLE / MONITOR / MAINTAIN
Legionella sampling, temperature monitoring, disinfection and practical care for water storage tanks.

INSTALL / REPAIR / IMPROVE
Domestic and commercial plumbing work, together with mechanical installations for building systems.
Explore this area ↗
HEATING & CHILLED WATER
Low-temperature hot water (LTHW) and chilled water (CHW) circuits are a core part of the service range. Chemical cleaning and flushing, testing and dosing, and side stream filtration each have a place in a clearly defined scope.
Send the system details, recent results or project specification. We can discuss the work required, access to the installation and how it fits your maintenance or project programme.
Explore closed-system services ↗HOW WE WORK
Share the site location, system details and the work you have in mind.
Discuss the service required, access arrangements and your timescale.
Agree the next step towards a quotation, site visit or planned programme of work.
BUILT AROUND YOUR SITE
Enquiries from facilities teams, mechanical contractors, property managers and homeowners.
LOCAL COVERAGE
Enquiries across Hertfordshire, Bedfordshire, Essex, Buckinghamshire and North London.
Tell us your town or postcode and the work required so we can discuss your location and access needs.
Explore our service area ↗BEFORE YOU GET IN TOUCH
If you are unsure, start with the building and the concern. An existing report, monitoring issue or a description of the system helps us discuss the right starting point.
Yes. Include the relevant recommendations and any photographs or drawings with your enquiry so the practical scope can be discussed.
Yes. Temperature monitoring is part of the service range, alongside LTHW and CHW testing and dosing. Share your existing schedule and the support you need.
The building location, service required and timescale are a useful starting point. Add access restrictions and any relevant report or system information.
PRACTICAL READING
The system details that make a heating or chilled-water treatment enquiry more useful.
Read guide ↗PRACTICAL SERVICE GUIDEThree different water hygiene enquiries, and how to explain the work you need.
Read guide ↗PRACTICAL SERVICE GUIDEPrepare a clear brief for work on an existing water storage tank.
Read guide ↗PLAN YOUR NEXT STEP
Tell us the location, the service you need and your timescale.