It appears that NZ Comms have turned on some of their cellsites in the Hutt Valley. NZ 24 coverage is now available from Petone up to Waterloo. Have not had a chance yet to check further up the valley.
Did a coverage check on both levels of Westfield Mall, Lower Hutt today. Even where the Vodafone coverage drops out on the lower level, by the North end escalator I still retained NZ 24 signal even outside the $2 shop at the North end, Lower level.
NZ Comms site is on the top of Public Trust House on the corner of Queens Dr/Laings Rd. Their sectorisation has a panel directly facing at the mall so it's not surprising they have some coverage in there where Vodafone don't.
With the site just across the road from the Queensgate entrance I would have thought that Vodafone would have had better coverage.
If a sector faced the mall then maybe. The sectorisation of the site is such that they don't.