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gucciman first thanks for your superb answer, I have now had 3 quotes 2 from one man bands and a 3rd from a small reputable firm . first man said �1,350 for a sraight replacement, but to put a combi boiler in the loft �1,950 and that is a baxi duotex 28kw boiler. The 2nd man said �1,400 for a straight swap and �1,800 for a worcester bosch greenstar si 30i combi in the loft. The 3rd guy who we liked the best and is a small reputable firm did not give me a price for a straight swap but said for a worcester bosch greenstar si 30i combi in the loft it would be �2,300 and he was the only one who said he would do a drain flush, not a power flush.
All 3 said they would utalize a 22mm pipe going to the loft for the gas pipe up there, My pipework is old and i was talking to my neighbour and he said you have to carefull plumbing a combi to the old pipework cos off the old joints mite leak! with the presure.
We liked the guy with the highest quote because we just felt confident with him he sempt to know what he was talking about, but i can have the same boiler for �500 cheaper and that is a lot to me at the moment.
Choosing a boiler is a nightmare worse than picking my kitchen last year. gucciman please help!!!!!