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As for doing it myself, I was gonna do that with proper kit rated for up to 42mm pipe not a single use sleeve. And I wouldnt attempt installing a shutoff valve mid-line, just changing the one on the radiator with the line frozen. I'd also have tools ready to crimp the pipe in a worst case scenario.
I have soldered copper pipes before, I have flushed radiator systems, changed thermostatic valves...etc, but its the element of no quick way of (reversably) shutting off a stream of scalding water in my direction if I fuck up, thats whats stopping me from just doing the whole thing myself.
Few hundred quid is entirely fair and we are ready to pay it. But like, £200 or £800? I'd also have to take out the kitchen cabinet from under the sink which is a pain, so there's that.
For context, we're paying about £200-£300 a month under market rate, and our landlord cancelled the maintenance contract with their management company ~1.5 years ago because we've been on a yearly rolling contract for 7 years and never once went to them about fixing anything, we just got it done (and told them about it).
kiskubai-
As I was saying and I have one of those machines in the garage, if the heating is on they will not freeze a pipe and if its hot they take even longer to freeze and if you cant turn the heating off and the water is circulating round the system it won't freeze at all.
London aint it, folk can charge anything especially for something that isnt straight forward.
I wouldnt personally do that job for £200, that's got potentials to be a fuckin nightmare of a job if it doesnt go right.
konastab01
That's nowhere near as straight forward as you think it is, few hundred quid including one that has a freezing machine. No chance, if there is one bit of water running in that system the pipes won't free!
Id personally get the landlord to do it and take nothing to do with it if you really dont know what your doing.
You could do it live but even that is fucking risky!