Unvented central heating system

canary4

Hi All,

I'm renovating a small 3 bedroom semi in Norwich. We're planning a large extension (2 storey side, loft and single storey rear) to essentially provide 4 double bedrooms along with complete renewal of the existing house.
The current central heating system comprises a gas combi boiler with oddly placed, leaking radiators in some of the rooms. The new extension will create 2 new bedrooms, 1 bathroom, (moved from current location to the box room), WC, 1 shower room, utility room, extra reception room and a new kitchen.
I met with a heating engineer today who gave me a ball park figure of 10 - 15K (detailed quote to follow) which covers the following:

1.removal of all existing central heating pipework, radiators, gas pipes (to 2 old gas room heaters) and existing combi boiler
2.supply and installation of unvented cylinder, system boiler and accumulator (all Veissmann brand)
supply and installation of wireless thermostat
3.installation of 13 stelrad radiators
4.supply and installation of all pipework
5.hot and cold feeds to bath and shower rooms
6.no sanitary plumbing included
7.all labour included

If money was no object I would use this engineer as he is excellent and provides first rate follow up if needed. However, by his own admission he doesn't need to be the cheapest.
I was thinking more in the region of 9K including all sanitary plumbing.
Your opinion on this would be greatly appreciated!

tacpot12

10-15k is quite a wide margin. He may come in closer to £10k If you keep talking to him.