Content about FROST KING

August 29, 2013

Mahwah, N.J.-based Frost King (Thermwell Products Co. Inc.) has acquired PortaSeal LLC of Morristown N.J. 

PortSeal makes weathersealing products, including Gara-Seal, a rigid vinyl strip with a flexible vinyl flange, which seals the top and sides of garage doors.

Both companies in the transaction are privately owned and operated: PortaSeal by Stanley Garbowy; and Thermwell by David and Mel Gerstein, twin sons of one of the two founding brothers.

February 14, 2008

Marvin closed in 2007, and Thermwell purchased the company’s assets in January 2008, re-opened the...

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