The 50plus

The cost to change a ball valve in a loft tank

0845 22 50 495 or one of our local numbers or book online here.

What are we talking about?

How long does it typically take to replace a ball valve in a tank? Usually in the loft.

Typical time

Up to 1 hr

Translate time to cost for your postcode by clicking on: Practical services and charges


Being able to turn the water off

Questions to ask

Is the stop cock working? Does the customer know where the main stop cock is? Make sure the roof tank is accessible - having to fight a way through lot's of 'stored' items will lengthen the job. Double check the location - in some flats the cold water storage tank is on top of a hot water cylinder.


Replacing a ball valve is a simple task as long as the water to the valve can be turned off and there is ready access! Normally turning off the supply at the stop cock is required.

Stop cocks are the culprits which can turn this simple job into something longer winded. In many cases, particularly in hard water areas, it's just as simple to replace the entire ball valve mechanism than just the washer as the cost of the mechanism is small.

Remember that if there's no light the plumber or helper will have to supply some.

Questions? Please contact us.