"We would need more staff," Ms Dragicevich said. "We find it difficult to recruit."
However, she said it was something they would like to do in the future.
"I think it's a great initiative."
Ms Dragicevich said participating pharmacies were likely to advertise the service.
"It raises awareness of how important it is," she added.
Lakes Care Pharmacy pharmacist Charlotte Stone said their location next to a medical centre meant there was no need for them to offer the jab.
"They [the medical centre] offer the service and are better equipped to provide it than us."
Ngongotaha Pharmacy, Central Pharmacy and Pharmacybrands' Unichem Western Heights all said they had no plans at the moment to join the scheme.
Between 10 and 20 per cent of the population is infected with the flu each year while last year almost a million New Zealanders had the vaccination.
Until July 31 the jab is free for people 65 and over, pregnant women and anyone with an ongoing health condition, for whom flu could lead to a more serious illness. It is also available for a small charge for healthy adults and children aged 6 months and over.
National Influenza Specialist Group spokesman Dr Lance Jennings warned fit and healthy people could catch the virus.
"Even a moderate dose of flu can stop you from working, studying or enjoying other activities for a week or more," he said.
Lakes residents are urged to call their doctor or nurse to book their vaccination.