RPZ Valve Installations, Commissioning and Compliance

Welcome to Cherwell Water Utilities Ltd, your trusted partner for RPZ installation, commissioning, and compliance services throughout the United Kingdom. We offer dependable solutions to guarantee the safety and compliance of your water supply thanks to our experience and dedication to excellence.

At Cherwell Water Utilities Ltd, we are committed to providing top-notch services in the area of backflow prevention. Reduced Pressure Zone (RPZ) valve installation, commissioning, and compliance are our areas of expertise. RPZ valves are essential for protecting your water supply from harmful pollutants and backflow issues.

Our team of highly trained and qualified engineers possesses extensive knowledge and experience in the installation and maintenance of RPZ valves. To ensure that our services meet and beyond your expectations, we stay updated with the most recent industry regulations and standards.

What's an RPZ valve and why is it important?

An RPZ (Reduced Pressure Zone) valve is a device that protects your drinking water from the potential risk of backflow which can cause contamination.

Water should only ever flow into your property, but sometimes the opposite happens and it flows back into the main water supply line which is a significant public health concern. When backflow happens, water can become contaminated with pesticides, human waste, choline and soap. Obviously, no one wants these things to end up in their drinking water! 

That's where RPZ valves come in. These valves help prevent backflow and act as a break between the water supply and potentially contaminated water. When required, the RPZ valve will automatically divert any backflow to a drain outlet rather than reach the main water supply. 


Thames Water approved

Please note that we are registered with Thames Water's approved RPZ valve tester scheme. This is a mandatory requirement for all testers as part of the AIM 08-01 issue 2 requirement for approved testers prior to installation and testing of any RPZ valve assemblies. Please click on the PDF below to view our acceptance letter of membership:


Thames Water logo

To take a look at the Aim-08-01 issue 2 document, please click on the PDF below:


RPZ Valve Installation

Cherwell Water Utilities Ltd is the company you choose for RPZ installation. We are aware of how crucial good installation is to the effective operation of your backflow prevention system. Our knowledgeable engineers install RPZ valves precisely while adhering to best practices and using cutting-edge technology, reducing the possibility of cross-contamination and waterborne illnesses. 

For full peace of mind, please note that our engineers are fully qualified to carry out the installation of RPZ valves. If you need an RPZ valve installed for your business, please get in touch with us today and we will be more than happy to help.

RPZ Commissioning 

Following the installation procedure, our professionals perform meticulous RPZ commissioning to ensure the backflow prevention system is operating as intended. We put your RPZ valve through rigorous testing and calibration to make sure it performs at its best and complies with all legal requirements. Your backflow prevention system's efficacy is ensured by our thorough commissioning process, giving you peace of mind.

RPZ Compliance

Maintaining compliance with regulatory standards is crucial for the safety and integrity of your water supply. Cherwell Water Utilities Ltd provides thorough RPZ compliance services to assist you in adhering to the relevant laws. In order to make sure that your RPZ valves are performing as intended, our expert staff performs routine checks and assessments. If any problems or violations are found, we offer quick fixes to effectively correct the situation.

What Makes Cherwell Water Utilities Ltd the Best?

  • RPZ installation, commissioning, and compliance skills to the fullest extent
  • skilled and experienced engineers
  • Adherence to industry regulations and standards
  • Rigorous testing and calibration procedures
  • Effective and prompt problem-solving
  • Commitment to customer satisfaction
  • Cherwell Water Utilities Ltd can be reached at:

Cherwell Water Utilities Ltd is the company to turn to if you need RPZ installation, commissioning, or compliance services in the UK since they consistently produce top-notch outcomes. Your needs for backflow prevention are being met by our devoted team. Contact us right away to go over your needs or arrange a consultation. Cherwell Water Utilities Ltd., your dependable partner in RPZ solutions, can help you protect your water supply.

Get in touch today

For all of your RPZ valve requirements, please don't hesitate to get in touch with the team at Cherwell Water Utilities today. You can give us a call on 07450488956 or alternatively, you're more than welcome to send us a message through our contact form

Click below to get yourself a quote