RPZ Valve Installation, Testing & Certification
Backflow Prevention by Certified Specialists
At Plumbing & Gas Solutions, we provide comprehensive RPZ (Reduced Pressure Zone) valve services for commercial and industrial properties from our base in Milton Keynes, across Buckinghamshire, Bedfordshire and Northamptonshire. Our RPZ services helps businesses stay compliant with water regulations while protecting mains water supplies from contamination.
We offer complete support from initial installation and testing, through to annual servicing, certification, emergency repairs, and compliance management, all delivered by WRAS-accredited engineers.
What Is an RPZ Valve?
An RPZ valve is a specialist backflow prevention device that protects drinking water systems from contamination caused by back pressure or back siphonage. These risks can occur in commercial settings where water systems are exposed to chemicals, waste water, or other non-potable sources.
RPZ valves are legally required in high-risk water systems, particularly in environments where substances hazardous to health could enter the clean water supply. This includes:
- Hospitals and dental surgeries
- Commercial kitchens and food processing plants
- Chemical and manufacturing facilities
- Vehicle washing stations
- Commercial laundries
- Agricultural and horticultural premises
- Schools and leisure centres
Our RPZ Valve Services
We offer a full range of RPZ valve services tailored to commercial, industrial, and public sector clients. These include:
RPZ Valve Installation
We supply and install WRAS-approved RPZ valves that meet the specific requirements of your water system and local water authority. Our team will:
- Survey your premises to assess the level of risk
- Specify the correct RPZ valve size and configuration
- Install the device in line with Water Regulations
- Notify your local water authority of the installation
- Carry out an initial pressure and function test
All installations are conducted by qualified commercial plumbing engineers and delivered with full documentation.
RPZ Valve Testing & Certification
RPZ valves must be tested by an approved RPZ tester at least once every 12 months or more frequently if requested by your local water supplier. We provide certified testing, including:
- Functional checks of both internal check valves
- Pressure testing of the reduced pressure zone
- Inspection for wear, damage, or leakage
- Test certificate issued and submitted to your water authority
- Advice on repairs or replacements if issues are found
We offer annual maintenance plans with automated reminders, so you’ll never miss a compliance deadline.
Compliance Management
Staying compliant with RPZ regulations can be time-consuming. We offer ongoing support and compliance management, including:- Scheduling of annual tests and inspections
- Test record keeping and documentation
- Liaison with your local water supplier
- Advice on changes in regulation or system upgrades
Why Choose Plumbing & Gas Solutions?
With over a decade of experience in commercial plumbing and gas services, we’re trusted by businesses across Milton Keynes, Bedford, Northampton, Oxford, Luton, and the surrounding regions. Here’s why our clients choose us:
- WRAS-certified RPZ testers and installers
- Fully qualified commercial engineers
- Rapid response and emergency service availability
- Transparent pricing and detailed reports
- Trusted by hospitals, schools, food processors, manufacturers, and more
We work closely with Anglian Water, Thames Water, and other water authorities to ensure every project is completed to regulatory standards.
Book an RPZ Valve Installation or Test
If your business requires RPZ valve installation, annual testing, or repairs, we’re here to help. Whether you’re setting up a new site, upgrading your backflow prevention systems, or simply due for routine certification, we offer reliable, expert service with full regulatory support.
📞 Call us today on 01908 569031 or
📧 Email info@pgsolutions.co.uk to book an appointment.
Or visit our complete the form below to request a callback.