--- title: "Kitchen Sink Replacement | Northstar Plumbing" description: "Replace your kitchen sink with a secure, leak-tested installation. Proper isolation, neat finishing and clear advice on fittings." canonical: "https://www.northstarplumbing.co.uk/services/kitchen-sink-replacement" --- ![A business owner in a UK home checking a stop tap under the sink in a calm setting.](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Fstop-tap-uk-business-illustration.png%3Fv%3D1769178286820&w=1536&q=75&dpl=dpl_DEc4fGhEc1SCRZZutzoEsRuDy1CJ) Plumbing Installations & Replacements # Kitchen Sink Replacement [Contact Us](https://www.northstarplumbing.co.uk/redirect) A kitchen sink replacement gives you a dependable, watertight sink setup that works properly day to day. The job covers safe isolation, removal of the old sink, correct fitting of the new unit, sound connections to the pipework and thorough leak testing, with clear communication on what’s needed before work starts. ## What a kitchen sink replacement includes A planned sink replacement should leave you with a secure fit, reliable drainage and clean, tidy finishing. - Isolating hot and cold water supplies - Disconnecting existing waste pipework and removing the old sink - Checking the condition and alignment of the existing pipework and fittings - Fitting the new sink to the existing worktop cut-out (where compatible) - Installing and connecting the waste, trap and overflow (as applicable) - Reconnecting existing taps where suitable, or fitting customer-supplied replacements - Sealing around the sink edge for a neat, watertight finish - Leak testing on both supply and waste, plus basic functional checks - Leaving the area safe and usable ### When this service is the right fit - Your sink is cracked, stained, poorly draining or difficult to keep clean - You have persistent drips or damp in the cupboard below the sink - You are updating worktops, doors or appliances and want the sink to match - You are preparing a rental property between tenancies - A small office or commercial kitchenette needs a like-for-like refresh ### How the work is delivered You agree the sink type and measurements in advance so the replacement matches the existing cut-out and plumbing layout. On the day, supplies are isolated, the old sink and waste connections are removed, then the new sink is fitted and sealed. All joints are tested under flow before the job is signed off, and you are told what was changed and what to keep an eye on. ### Aftercare and next steps You will be advised how long to leave fresh sealant before heavy use and what to do if you notice any damp or odours from the waste. If pipework or valves are worn, you can opt to renew those at the same time to reduce the chance of future leaks. If anything settles after first use, a prompt follow-up can be arranged. [Contact Us](https://www.northstarplumbing.co.uk/redirect) ## Frequently Asked Questions Can you fit a kitchen sink that I have already bought? Yes, as long as it is compatible with the existing worktop cut-out and the plumbing connections. If anything is missing or doesn’t match, you will be advised on the correct fittings before installation. Will you replace the tap and waste fittings at the same time? This can be done in the same visit if you want a full refresh or if the existing parts are worn. You can keep your current tap if it is in good condition and fits the new sink. How long does a kitchen sink replacement usually take? Most straightforward replacements are completed in a single visit. Extra time may be needed if the pipework needs alterations, parts are seized, or the new sink doesn’t match the existing cut-out. Will the water need to be turned off during the work? Yes, hot and cold supplies are isolated to disconnect and reconnect the sink safely. You will be told what to expect and when water will be back on. Do you remove and dispose of the old sink? Old sink removal is part of the replacement. Disposal can usually be arranged if requested, and you can keep the old unit if you prefer. 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