People living in this street are keen to know why their new sign is spelt incorrectly.

Residents haven't had a street sign in their Auckland suburb for a month but their replacement isn't much better.

Someone should have told Auckland Transport (AT) contractors the new sign they were erecting was missing two key letters.

Justine Kawana-Clegg, who lives on Inglis St in Birkdale, ran to the top of her hill to see the sign that now reads Ingus St.

"I got a call from my friend who said 'I see they have renamed your street'. I said what? I ran up there in the dark to have a look.

"Even my daughter who is living in Italy called up."

Kawana-Clegg says the original sign fell down at least a month ago.

She wants to know if the AT contractors looked at a map before erecting the sign.

"I thought how stupid are they? How did the guys even know how to get here if they put Ingus St in their GPS? I get they probably don't know the area, but this isn't a small error – it's so wrong.

"Surely this cost money. How much are these street signs?"

An elderly resident, who asked to remain anonymous, lives in the first house built in the street.

She hasn't noticed the new sign because she was busy in the garden the day it was put up.

"I just think this is terrible," she says.

Her home was built by the Inglis family, who the street is named after.

She knew the family well.

She moved into the home in 1955, three months after it was built.

"Before that it was just a paddock," she says.

Auckland Library's street history shows Inglis St was formerly Victoria Rd East and was renamed in February 1967.

An AT spokesman says it's not the first time this has happened in Auckland and the contractor has been notified.

He says it will be replaced at the contractor's own cost.

The sign will be replaced within the next week, he says.