Eighty containers would be needed to move the gear to Europe.
"It's a big logistical operation and we are very happy with the way it has gone," he said, responding to criticism from a Herald caller who claimed late payments.
"We've still got most of the people working here. We would not leave without paying everyone. That's just not what we do. We operate on jobs everywhere around the world.
"We're an international company and we pay people possibly slower than they would want but that's just unfortunately the way we have to do it," he said, adding that employees were mostly paid monthly and subcontractors according to arrangements made between the businesses.
About 30 people were on the site but at its peak about 100 were dismantling the gear for the job, which started on October 31.
"That's when we took possession back and, since then, it's been all systems go," he said.
The temporary seating was built to a high standard to meet code compliance demands and had major seismic aspects.
Hayward noted there was an Auckland earthquake near Rangitoto Island in June but he wasn't worried by it.
Three engineering firms worked on the temporary seating project including Beca.
"We were thrilled with the design. The system has never been used before down here and we knew it was going to get a wow factor.
"There was a huge amount of design, calculations and engineering works involved," he said.
The temporary seating was hired to Eden Park by GL Events, and will now be shipped to London as part of 103,000 temporary seats at the Olympic Games next year.