Content about Thermwell Products

October 11, 2013

Mahwah, N.J.-based Thermwell Products, makers of Frost King, has acquired PortaSeal of Morristown N.J., a manufacturer of weathersealing products, according to David Gerstein, president of Thermwell.

December 20, 2011

Home improvement industry veteran Mel Gerstein, co-owner of Mahwah, N.J.-based Thermwell Products, is at it again. His holiday cards containing his unique brand of political humor are hitting mailboxes all across the country. 

Gerstein estimates thousands of people are on his holiday card list, including the office of Home Channel News, which received its card earlier this week. What makes Gerstein tradition unusual is that he draws his own card, and he's been doing it since the mid-1960s.

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