Flushing central heating

Hedgehog99

How much is a reasonable price for flushing a bungalow's central heating system? 14 radiators if that matters.

One tradesman has suggested it should be done (because one radiator has been replaced) or can we wait until a new boiler is needed and get it done then?

southcoastrgi

What's the colour of the water in your system ?
Was the rad replaced because of sludge/rusting ?
Do all the rads get hot from top to bottom ?

Hedgehog99

southcoastrgi wrote: »

What's the colour of the water in your system ?
Was the rad replaced because of sludge/rusting ?
Do all the rads get hot from top to bottom ?

I haven't seen the colour of the water.

The rad was replaced to swap it for a heated towel rail, not because of a problem with the old rad.

The rads heat a bit unevenly?

Thanks.

southcoastrgi

Drain some water out or bleed some air out & see how dirty it is,
If they aren't cold at the bottom & they seem to work ok then you might not need a powerflush, to give you some idea my price for 14 rads would be £420 & id be there all day

Hedgehog99

Thank you southcoastrgi. Very useful. The water is a bit brown, but the rads do warm at the bottom, so that gives us some time to think and get local quotes.