Amarr Garage Doors is hiring back some of the employees it had laid off in Lawrence during the past few months, and the company continues looking for more.

Amarr, which operates a 400,000-square-foot production plant in the East Hills Business Park, already has rehired 30 of the 100 production employees that it had laid off in town since December, said Kirsten Krug, the company’s director of people.

“We’ve offered positions to all of the people who were on layoff,” Krug said. “Thirty of them have come back. Some of them are just waiting for the shifts or the departments they want. … Some of them had other jobs.”

Krug said Amarr was still hiring, but declined to disclose how many more employees would be added.

Amarr had laid off employees in two waves — one in December, and another in February — as the North Carolina-based company grappled with a slumping economy and downturn in the residential housing market.

Those conditions haven’t changed all that much, Krug said, but Amarr is noticing a seasonal rise in demand as builders look to work during the summer and, ultimately, get their projects enclosed in time for interior work over the winter.

“We always see a pick up, but — in this economy — it’s certainly a pleasant surprise,” Krug said. “We are obviously pleasantly surprised but, like everyone else, we are cautiously optimistic.”

Amarr, which has 465 employees in Lawrence, has positions open on both shifts — 7 a.m. to 3 p.m., and 3 p.m. to 11 p.m. — in production and customer service, Krug said.