Risk management services

RPZ Valve Testing

Are your water systems compliant with water authority regulations and protected against backflow contamination?

Regular RPZ valve testing keeps your plumbing systems compliant, safeguarding public health and protecting your water from contamination.

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Ensure the quality of your water today

RPZ valves (reduced pressure zone valves) are backflow prevention devices that protect your clean water supply from contamination. Properly functioning RPZ valves are a fundamental requirement for compliance with water regulations and preventing health risks.

At Aqua Compliance, our team of highly accredited engineers provides an outstanding RPZ valve testing service that includes detailed reports, valve maintenance and liaison with water undertakers.

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Why you need RPZ valve testing

Maintaining safe water and drainage systems is more than just good practice - it’s a legal requirement under UK water regulations. RPZ valves act as backflow protection devices, so testing on a regular basis protects your water fittings and drinking water supply system from contamination. Here’s why it’s essential:

Compliance with regulations

Under water authority guidelines, including the Water Industry Act, regular testing is a mandatory service for RPZ valves. If you don't meet these legal requirements, you could face fines, legal action or compromised clean water supplies. Working with an approved RPZ valve tester like Aqua Compliance means your backflow preventer will always be compliant.

Backflow contamination prevention

The backflow of pollutants occurs when pressure differentials allow water to flow in the wrong direction. This can introduce bacteria, hazardous chemicals and other contaminants into your water supply. RPZ valves act as a reduced pressure backflow prevention device to stop this, and regular testing means you can identify any issues before they become a problem.

Protecting public health and operational efficiency

In commercial premises like health centres, industrial sites and properties with complex plumbing systems, backflow contamination can pose severe health risks. RPZ valve testing protects your water supplies from contamination, safeguarding both public health and the integrity of your cold water supply line.
Safeguarding water quality in all types of buildings, including offices and hospitality venues, is non-negotiable. Don’t leave it to chance.

Prevent water contamination and protect your systems today
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What you’ll get from our RPZ valve testing service


Our RPZ valve testing services provide complete peace of mind. Each element of our service protects your commercial water systems, reducing the risk of contamination and making sure you comply with regulations.
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Visual inspection

Our engineers perform accurate assessments and visual inspections of your valves to identify wear, damage or any issues that could lead to leaks or compromise the water quality in your plumbing systems.
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Function testing of the valve

We test your RPZ valve to ensure it has the required level of backflow protection by verifying that the mechanical spring-loaded check valve and additional relief valve are functioning correctly. If they're not, we can fix them to keep them functional going forward.
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Disassembly, component inspection and rebuild

We carefully disassemble every valve for a detailed inspection, where we examine each component for defects. We'll then rebuild your valve to its original standards, remedying any issues and making sure it's fit for long-term performance.
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Cleaning and maintenance

We remove debris, sediment and any other contaminants that can compromise water quality or prevent constant water pressure. Our maintenance ensures the valve remains in optimal condition.
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Full written reports and compliance documentation

Within one working day, we'll provide you with a comprehensive report that includes test results, observations and any follow-up actions as a certificate of compliance.
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Reporting to water undertakers

We manage communication with water companies on your behalf, reporting observations and ensuring compliance with approved contractor schemes like WRAS.

Our process


Aqua Compliance’s RPZ valve testing process is efficient, transparent and doesn't disrupt your day-to-day operations. Here's how we do it:
1

Enquiry and site assessment

Your dedicated technical account manager gathers specifics about your site, such as fluid categories, plumbing system details and any additional requirements. They'll get to know your site inside-out so our engineers are fully prepared.
2

Scheduling and preparation

Our back-office coordinator schedules our services at a time that suits your needs. They’ll also handle any queries about invoicing or logistical arrangements. They offer efficient response times, so you'll always be able to reach them.
3

On-site testing and servicing

Our qualified engineers, certified in compliance testing and valve maintenance, will carry out our services with no disruption to you. This includes visual inspections, device testing and calibration certification.
4

Reporting and follow-up

By the next day, you’ll receive a detailed report of the valve test, along with any remedial work it'll need. This ensures you have everything you need to maintain compliance and prevent health risks.
Our process comes with no downtime and provides a seamless experience, from your initial enquiry to your final report.
Prevent leaks in your water system
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What Our Clients Are Saying


"We have been using Aqua’s services for many years now and we value their
engineer’s diligence when carrying out the work and the good communication with
management. We would recommend their services to others."

Metromec
"Working with Aqua feels like part of a partnership and not just another contractor ticking boxes. Aquas demonstrated a profound understanding of water safety regulations and a commitment to ensuring our compliance with L8 standards."
Landmark FM
"I am very happy with the services that Aqua provide to our clients, they’re very quick at responding to us and sending the reports over."
Edmund Services

Why choose Aqua Compliance?

We're more than a service provider - we’re your partner in ensuring water hygiene and protecting public health. Here’s why we’re the trusted choice for RPZ valve services:

Commitment to compliance and public health

We specialise in water regulations compliance, offering industry-leading solutions for RPZ valves, water fittings and plumbing systems. Our friendly team is equipped with City & Guilds certifications and practical assessment experience, ensuring every water treatment service meets the highest standards.

Dedicated support team

We provide two key points of contact for a personalised service:

  • A technical account manager to handle all technical queries, quotations and site-specific needs. They'll get to know your site so our engineers are fully prepared.
  • A back-office coordinator to manage bookings, invoicing and day-to-day enquiries.

This dual approach offers efficiency, clarity and a seamless experience for you.

Long-term partnership approach

We become an integral part of your building’s operations by delivering reliable testing and disinfection services. We treat your water systems like our own, maintaining them to the highest standards.

Qualified professionals and comprehensive reporting

Our City & Guilds-qualified team has decades of experience in testing and remedying RPZ valves. You’ll also receive certificates of compliance and comprehensive reports, giving you transparency and peace of mind.

Commitment to public health and safety

With Aqua Compliance, your water systems are in the hands of professionals who protect your clean drinking water supplies, prevent contaminated water and help you meet water industry regulations.

We deliver expert solutions with a personal touch. We're not just a subcontractor, we become a valued extension of your team.

Ensure water compliance with trusted experts - choose Aqua Compliance for RPZ valve testing

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Contact Aqua Compliance for expert RPZ valve testing


Ready to ensure the safety, compliance and efficiency of your water systems? RPZ valve tester Aqua Compliance is here to help. Whether you need RPZ valve testing on an annual basis, comprehensive maintenance or expert advice, our experienced team is just a call or click away.

Protect your entire water supply, prevent contamination and meet all regulatory requirements with confidence.

Contact Aqua Compliance today for outstanding commercial water hygiene services

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