Queues have stretched out the door, no matter what the weather, every day since Christmas at the Fairlie Bakehouse.

"It's just queues and queues and queues."

Fairlie Bakehouse owner Franz Lieber can barely count how quickly his fast-becoming world famous pies have been flying off the shelves of the warmer this summer.

All he knows is that it's been a magical season so far. Since Christmas the queues have been out the door of his boutique store on Fairlie's Main St every day.

NATASHA MARTIN/FAIRFAX NZ Fairlie Bakehouse owner Franz Lieber is contemplating expansion as Trip Advisor success brings in a flood of tourists.

On New Year's Day the queue snaked outside for seven hours straight, Lieber said.

The next day it rained. It didn't matter. People still queued.

South Canterbury pastry fiends have been gorging themselves on Lieber's pies - which include the likes of a salmon and bacon mix and a pulled pork, apple sauce and crackling combo - since it opened in 2009 and it won the people's choice award at the South Canterbury business excellence awards in 2015.

But an influx of tourism driven by outstanding ratings on Trip Advisor has stepped things up a notch further and the formerly Arrowtown-based Lieber is considering expansion to cope.

Fairlie Bakehouse is now ranked the best place to eat in Mackenzie and the third best in the whole of Canterbury on the influential travel website.

"I think we've now become a destination in our own right now - people know what they want when they come in and we're giving that to them," Lieber said.

"Once we quiet down a little bit we are definitely going to be working on expanding.

"We're not certain how we want to do it. We don't want to lose this building so we'll probably look at moving everything backwards so there's at least a bit more room in the store front."

Lieber said his staff's work in a crowded and chaotic area over the busy season had been excellent.

"We've managed our staff well and they've been doing a brilliant job to keep their cool.

"Everyone has been really positive with their comments, the compliments have been amazing.

"Usually when you get this busy it can get quite dangerous for the brand.

"People get grumbly and you can lose your concentration on what's most important because there's so much to do, so we've done really well."