your boiler needing repressurising every week normal!!!!!!!! i think not mate!!!your installers a mug and he's taking you for one!! pressurised boilers should only need topping up 2-3 times a year,max, unless there is a leak on the boiler,pipework or radiators, or you bleed a radiator.
you need to check all radiators to see if there's a leak,and also the 15mm copper pipe going to outside, boiler manufacturers will not uphold warranties if it is down to installer error or leaks on the system.
get a 3rd party to investigate
Stephen, September 2011
