As our engineer is dedicated to RPZ Valve testing, servicing and repairs we are able to carry out works at short notice at no additional costs.

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The RPZ Valve is a regulated item that requires annual testing. If these valves have not been successfully tested in the last 12 months then site will be contravening AIM-08-01 Issue 2 and may be liable to sanctions from the sites Water Undertaker.

Servicing and Repairs

We also allow for servicing and repair works (where possible) within our pricing which many other RPZ Valve testers do not. If parts are required our engineer carries stock of parts so that return visits for repair may not be necessary.

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Arrow Services (RPZ) Limited


One of the few specialist companies providing testing, servicing and repair works on all makes of RPZ Valves throughout England and Wales. As well as offering support liaising with Water Undertakers to ensure sites are fully in line with the requirements of the Water Regulations.

What is an RPZ Valve

The Reduced Pressure Zone (RPZ) Valve provides mains water protection against backflow from a fluid up to fluid category 4. The RPZ Valve has been in use throughout the UK for well over 20 years and they are becoming more and more common as they allow sites and the Water Undertakers that provide them confidence that adequate protection is in place to protect the water supply. 

The testing of RPZ Valves is required under AIM-08-01 Issue 2 which is the most recent set of regulations for the RPZ Valves and was put into place in 2020. The requirements for an accredited and registered Testing Engineer to carry out the testing is set out in this AIM along with all other requirements for sites with RPZ Valves.

Annual or bi-annual servicing and testing means that RPZ Valves can be certificated to be working to the requirements of AIM-08-01 Issue 2 or for the repair or replacement of RPZ Valves that are not working to the standards required.

Did you know, We also offer Services and Repairs?

We also allow for servicing and repair works (where possible) within our pricing which many other RPZ Valve testers do not.
If parts are required our engineer carries stock of parts so that return visits for repair may not be necessary.
Where a valve fails to such a degree it cannot be repaired on the day we will be happy to quote for a return
visit with additional parts or to replace the valve.

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