It will cost from about £60 to replace a kitchen sink if you don't pay for installation costs and want to replace a lightweight inset sink with another inset sink (such as stainless steel or tectonite composite). This doesn't include any accessories such as new taps, or extra materials such as sealant.
If you’re looking to install an undermount or heavier sink such as ceramic or granite composite, it’s best to get this installed by a professional which will add to the cost.