I'm looking at adding a radiator to my existing (pressurised) system. It looks to me like a fairly simple job (there is a plinth heater not far away, and all the piping could be run under kitchen cupboards and then straight through the wall), but I've been quoted anything between £200 and £280 for the job.
Are these reasonable prices? Given that the radiator itself seems fairly cheap (45ish from Screwfix for a 600x800 convector) this seems high - but I've never had a plumber in before. I'm increasingly tempted to have a go myself. The plinth heater is in series with the existing pipework and has some kind of push-fit connection with flexible hoses - so I presume I could just tap off somehow? One problem is that is not clear whether the connectors are re-usable or not.
I'd be grateful for any pointers / opinions.