Replacing a diaphragm on a Baxi boiler

horseykitty

My boiler has sprouted a leak - apparently it could be the domestic hot water diaphragm needs replacing.
Could anyone give me an estimate as to how much a plumber is likely to charge to fix this? Thank you.

ormus

what make model boiler?
are you sure its the diaphram.

as a rough guide,
a vaillant expansion vessel is 50-150 quid plus fitting.
say 2 hrs work.

gas4you

A diaphragm won' usually cause a leak.

If it is a BAXI 105e or Combi 80 or similar, you can expect around £90 to replace the diaphragm

ziggyman99

As gas4you said, it's unlikely to be the diaphragm. It's more likely to the pressure differential assembly. That's the bit that contains the diaphragm and often leaks around the shaft that operates the DHW microswitch. Classic Baxi problem.

horseykitty

Thanks for all your replies guys.

It was something near to the diaphragm that had completely sheared off that turned out to be causing the leak. Hubbie researched the problem on the internet. Although a replacement part could have been got off Amazon for around £12, a local plumber's merchant had one in stock for £20.

The whole problem was fixed in less than 20 mins and for £20! I was expecting it to cost an arm and a leg.

House is now lovely and warm and we have hot water again. Husband is back in good books - for the moment!