Installing a dishwasher may seem straightforward, but it requires precise plumbing work to ensure safety, efficiency, and full compliance with UK standards. At Citywide Plumbers, we provide expert dishwasher installation services across London, connecting units to your home's water supply and drainage systems with care and precision.
1. Water Supply Connection
The dishwasher needs a cold water supply, usually sourced from the same line that feeds your kitchen tap. Our plumbers use a self-cutting tap or isolation valve to connect a flexible hose from the main supply to the dishwasher’s inlet valve. This ensures the appliance receives steady, clean water whenever a cycle begins.
We always ensure that a proper check valve is installed to prevent backflow, protecting your water supply from contamination.
2. Wastewater Drainage Setup
A dishwasher must drain wastewater efficiently into your existing plumbing. Our plumbers typically connect the discharge hose to a standpipe under the sink or to the trap arm of the kitchen sink drain using a spigot. We ensure the hose is looped properly to prevent siphoning or backflow, in line with UK building regulations.
Where needed, we install an air gap or high-loop to prevent dirty water from returning into the appliance, maintaining hygiene and functionality.
3. Electrical Safety and Final Testing
Though our primary focus is plumbing, our technicians work alongside certified electricians if needed to ensure your dishwasher is connected to a suitable socket, usually on its own fused spur. Once the water and drainage connections are in place, we test the system thoroughly to detect leaks, pressure issues, or connection faults.
4. Adaptation for Older Kitchens
Many older kitchens in London weren’t originally designed with dishwashers in mind. If your kitchen needs plumbing modification, Citywide Plumbers can expertly reroute or extend pipes, install new valves, or add a standpipe — all in accordance with British plumbing codes.
We aim to minimise disruption and keep your kitchen tidy during the work.
5. Why Choose Citywide Plumbers?
Citywide Plumbers are your reliable partners in dishwasher plumbing. We use only WRAS-approved materials, work quickly yet carefully, and always leave your kitchen clean. Whether you’re replacing an old unit or installing a brand-new one, we handle every detail.
Contact us today on 02038928545 or email info@citywideplumbers.co.uk to book a trusted dishwasher plumbing service in your area.