Nearly 70 more employees have joined Pella Corporation as the company announced the acquisition of Duratherm Windows Corporation.

The Maine-based company is a manufacturer and designer of hardwood windows and doors.

“It was a pleasant surprise to me when I received a call from Pella, especially since I wasn’t actively seeking to sell the business,” said Tim Downing, president at Duratherm. “This partnership creates exciting possibilities for Duratherm. With Pella’s involvement, we will continue to be trailblazers within the architectural community and grow.”

Taking effect this week, Duratherm Window Corporation will remain under the leadership of Tim Downing and maintain its brand. Over time, Duratherm will be integrated into the Pella Crafted Luxury collection.

“We’ve acquired Duratherm for Duratherm. Our goal is to support their endeavors and help the team do more of what they already do exceptionally well,” said Tim Yaggi, president and CEO of Pella Corp, in a statement. “Duratherm rounds out Pella’s collection of elite brands and expands our geographic footprint on both the east and west coasts.”

This is the third acquisition for Pella during the past two years which includes Grabill Windows & Doors in 2015, and Reilly Windows & Doors in July 2016. Duratherm’s facility in Vassalboro, Maine, is about 11 miles north of the state capital, Augusta, and now increases Pella’s manufacturing locations to 13 throughout the United States.