Expertly Delivered by Qualified Engineers
At The Rainwater Guy, we provide professional installation and commissioning services for rainwater harvesting systems - ensuring each system is set up correctly, efficiently, and in full compliance with manufacturer specifications.
While groundworkers are often experienced in tank and drainage installation, the technical setup of rainwater harvesting components often requires a specialist’s knowledge. Our trained engineers bring this expertise to your project, protecting your system warranty and ensuring long-term reliability.
Why Choose a Professional Engineer?
Having a trained professional handle your installation and commissioning ensures:
• Compliance with manufacturer requirements
• Efficient and safe system operation
• Full testing, setup, and calibration of components
• Peace of mind with warranty-backed assurance
• A commissioning certificate for your records
Installation Packages
We offer three levels of installation support, each designed to suit different project needs and system complexities. We are specialists in Graf Rainwater Harvesting Systems—including Eco Plus, Silentio, Direct Supply, Indirect Supply, and Garden Systems—but are experienced with a wide range of systems.
Already Installed? Commissioning-Only Service Available
If your system has already been installed, we offer a standalone commissioning service, which includes:
• Compliance check against manufacturer guidelines
• Full system operation testing and fine-tuning
• Issuance of a Commissioning Certificate
Bespoke Packages Available
If your project has unique requirements, we can tailor a solution specifically for you following a consultation with one of our senior engineers.
Support for Commercial Projects & Housing Developments
All of our installation and commissioning packages can be tailored to suit larger commercial systems and multi-property developments.
Whether you're a commercial client installing a high-capacity rainwater harvesting system, or a housing developer needing multiple systems installed/commissioned across several new builds, we have the capacity and expertise to support your project.
We can coordinate with your site teams to ensure consistent, compliant installation across all properties, helping streamline your handover process and ensure long-term system performance.
Contact Us Today
Whether you’re starting a new install or need professional commissioning for an existing system, we’re here to help.
Get in touch to discuss your needs, view package options, or receive a tailored quote.
