The cost of replacing a stopcock depends mainly on how easy it is to reach, the type and condition of the pipework around it, how the water supply can be isolated while the work is done, and the type of valve fitted. Because these vary from home to home, a fair price usually depends on seeing the stopcock first.
Knowing what affects the cost can help you understand a quote and plan the work. It can also help you compare options, such as repairing rather than replacing.
Access and Location
A stopcock in an open cupboard under the sink is usually easier to work on than one behind kitchen units, under floorboards or inside boxing. If units, panels or flooring need to be moved, this can add time and may need making good afterwards.
Moving the stopcock to a more accessible position, rather than replacing it where it is, can also affect the work involved.
Isolating the Water Supply
To replace a stopcock, the water supply to it usually needs to be turned off further back, often at the outside stop tap. If the outside stop tap is hard to find, buried or does not work properly, this can add to the time involved. In some cases the water supplier may need to be contacted.
In flats or properties with shared supplies, isolating the water may also affect neighbours, which can mean more planning before the work starts.
The work also means the water will be off for a period, which may need planning around the household or business.
Pipework and Valve Type
Stopcocks are fitted to different types and sizes of pipe, and older properties may have pipework that is harder to connect to. If the pipe either side of the stopcock is corroded or damaged, part of it may need replacing as well.
There are different kinds of valve that can be fitted, and the choice can affect the cost. A plumber can explain what is suitable for the property.
Other Factors
The water supply may also need flushing and checking once the new valve is fitted, and any nearby joints that were disturbed may need checking for leaks.
Timing can play a part. A planned replacement can usually be arranged at a convenient time, while a stopcock that has failed during a leak may need dealing with more urgently.
If the stopcock could be repaired rather than replaced, that may change the cost too. Our stopcock repair page explains when a repair may be possible.
It is reasonable to ask what is included in a price, how the water will be isolated and what might change if something unexpected is found. Our page on professional stopcock replacement explains what replacement usually involves.
If you are thinking about replacing your stopcock in Poole, a plumber can look at it and explain what is involved before giving a price.