Installing a kitchen sink might seem straightforward, but it requires a professional approach to ensure a fully functional and leak-free result. At Citywide Plumbers, we offer tailored kitchen sink installations across London, delivered with precision, safety, and compliance to British plumbing standards.
Whether you're upgrading your kitchen, replacing a damaged sink, or undertaking a full renovation, our certified team is equipped to handle every step of the process. Here's how it works:
1. Assessment & Planning
Before we touch any tools, our experts at Citywide Plumbers carry out a complete assessment of your current kitchen plumbing. This helps us understand:
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The position of your existing water supply and waste pipes
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The compatibility of the new sink with the worktop and cabinet
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Required upgrades (if any) for water pressure, pipe condition or fittings
We also advise on the best type of sink — whether it's stainless steel, ceramic, composite, or Belfast — depending on your space, design preference, and usage.
2. Removing the Old Sink
If a sink is already installed, we begin by turning off the water supply valves located beneath the sink. Once shut, we disconnect the water supply lines, the waste pipe, and any sealants around the rim.
We remove the old unit carefully to avoid damaging the countertop or surrounding cabinets. All old components are responsibly discarded.
3. Preparing the Countertop Opening
Every new sink must sit securely and level on the worktop. If the new sink differs in size or shape from the old one, our team will cut a new hole using precision tools. The cut edges are sealed with moisture-resistant sealant to prevent water damage in the future.
4. Positioning and Securing the New Sink
We lower the new sink into place, ensuring a perfect fit. A high-quality waterproof sealant is applied around the edges to keep water from seeping underneath. We then use clamps or fixing clips to secure the sink tightly to the worktop.
Citywide Plumbers only uses long-lasting, food-safe sealants that resist mould and maintain hygiene.
5. Connecting the Plumbing
Now comes the most technical part: water and waste connections. Our plumbers ensure:
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Hot and cold water lines are connected using WRAS-approved flexi hoses
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Waste pipes are correctly aligned and tightly fitted
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The trap and overflow system are leak-tested
If you're installing a double-bowl sink or a waste disposal unit, we ensure both bowls and attachments are properly plumbed and vented to prevent gurgling or odours.
6. Leak Test & Final Checks
Once the system is connected, we turn the water supply back on and run a full leak test. We inspect all joints, connections, and seals for drips or seepage.
Additionally, we ensure your tap has steady pressure and that water drains efficiently without backflow or pooling.
7. Aftercare Advice
Our service doesn't end at installation. We offer advice on:
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How to clean and maintain your new sink
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How to detect early signs of leaks or blockages
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When to call for servicing
And if you ever need repairs or upgrades, Citywide Plumbers is just a call away.
Why Choose Citywide Plumbers?
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Local London-based specialists
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Fully insured and certified engineers
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Responsive same-day service
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High-grade fittings and sealants
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Transparent and honest advice
We understand that your kitchen is the heart of your home. That’s why we treat every sink installation with care and attention to detail, ensuring your system works perfectly from day one.
For help with a new kitchen sink installation in any London area, contact Citywide Plumbers today on 02038928545 or email info@citywideplumbers.co.uk.