Last updated 27th October 2019
All you need to know about replacing your kitchen sink including material and labour costs as well as time frames.
This article is about removing and replacing the kitchen sink and is part of our series into the prices charged by plumbers for common household jobs. Replacing a sink is not a difficult job for a competent kitchen fitter or plumber, the sink is fairly easy to disconnect from the pipework and remove. The installation of the new sink can be more difficult as it may involve cutting the existing worktop to accommodate the new unit.
So if possible, buy a new sink that is the same size or slightly larger than the original, as it is difficult to make holes smaller! It may also be necessary to extend the existing pipes to fit the new sink. This is something that a plumber should probably do to ensure no problems. Of course if you are moving the sink to another location in the kitchen, then you will need new worktops and also lots of pipework for hot and cold water plus the waste.
When choosing a new kitchen sink, you should consider the cost, functionality and aesthetics. Each should be considered carefully when selecting your sink material as there will no doubt be some sort of compromise to be made along the way. For example, stainless steel sinks look great and are reasonably priced, but they do scratch easily and show water marks. Cast iron sinks are beautiful, but they require a lot of elbow grease to stay that way!
Composite granite and quartz sinks are becoming increasingly popular too, but they are very expensive and aren't necessarily bulletproof either, despite popular belief. The size of the sink required will depend on what you use it for, the standard sizes to choose from are single bowl, one and a half bowl, or double bowl.
The material of your sink is up to you – it may depend on your budget or the type of look that you want to create in your kitchen. In terms of the actual material the sink is made from, the most popular choices are stainless steel, fire clay ceramic, granite and igneous. Each material has its advantages and disadvantages, so you really have to weigh up the pros and cons to decide which is best for you.
If getting a nice new kitchen sink, most will want to at least some lovely new taps, if not a complete new worktop! Getting your kitchen worktop replaced is not just about improving the look and revamping the kitchen, and you may not have much choice in any case, sometimes a new worktop will be required anyway if the sink is substantially different in size and shape.
In addition, if you do not already have one, get an isolating valve fitted to the sink water supply when replacing the sink. This will allow you to replace washers etc, without turning off the main water supply in the future. Kitchen sink units come ready for the sinks or hobs to be inserted which allows you to do the plumbing in a more open space before you fit the worktop.
When fitting a worktop, you need to follow the manufacturer’s recommendations for cutting which will vary depending on the material. Wood or Formica worktops can be cut to size and shape easily with a jigsaw, but some composite kitchen worktops need the holes for the sink moulded into the worktop by the manufacturer and come preformed with all the holes, so you must be absolutely sure of your measurements when you order your worktop to fit a new sink!
Stone, granite, marble and stainless steel worktops are also easier to order with the holes you need for the sink already in place, you can cut these materials yourself if you get a new sink, but this is more difficult to do so and may be beyond the scope of many DIY enthusiasts.
If attempting to do this job as a DIY project, there are a number of potential pitfalls, the most serious of which is to make a mistake measuring the new sink and cut a hole too large in the worktop, or if ordering a new worktop from the manufacturer to get one with a hole that is too big for the sink. here is not much that can be one about this, except buy a complete new worktop!
The average cost to replace a kitchen sink is typically around £400 with the price depending on what type of sink you choose and the amount of extra pipework required. The price of materials would be around £200 which assumes a mid-range stainless steel kitchen sink, taps and other materials required for fitting.
The standard labourer will normally charge a fixed £100-£150 a day to replace a kitchen sink. The job on average takes 3-4 hours to complete depending on how easy the sink is to install and if any cutting or pipework is needed.
Below are some estimated costs of replacing a kitchen sink:
|Sink Type||Avg. Cost||Duration|
|Stainless Steel Sink & Taps||£400||1 day|
|Composite Sink & Taps||£450||1 day|
|Ceramic Sink & Taps||£500||1 day|
Individual costs for supplying & fitting a new stainless steel kitchen sink - Total Cost: £400