Calling Plumbers - ball park £ to fit immersion + electrics

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Existing cylinder fed by heat only boiler

I want to get an immersion element fitted plus the electrics to heat the water instead of using boiler

Extension works start soon and boiler will need moving, ideally we can survive for a few weeks with the woodburner for cold nights and hot water from immersion/cylinder then don't have to move boiler twice

Been chasing a local plumber for weeks for a price

Any ball park price would be appreciated

Leeds

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Yes plumber has confirmed it has the boss and good to go

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Thanks all

Yes the electrical bit is more of the painful part of the job

We've easy access to the consumer unit for the power and the cylinder is good to go

Just gonna have to hound the plumber(who is chasing his sparky mate for his price)