Employee Owned Employee Proud

Thermo Twin | Associations

Thermo Twin | History


  • Founded in 1972 in New Kensington, PA, Thermo-Twin’s core business was supplying window manufacturers with insulated glass units.

  • In 1974, business expanded into general home remodeling and we began manufacturing our own windows, using frames and sashes produced by various suppliers.

  • In 1981, our Company began selling windows under the trade name, Thermo-Twin Industries, Inc. and moved from its original location to a 55,000 square foot manufacturing facility in Oakmont, PA. This allowed for additional growth and for the window and glass operations to be housed together. 

  • In 1987, Thermo-Twin began manufacturing windows using vinyl extrusions.

  • 1989 was a defining year for Thermo-Twin. This is the year that our Company became Employee-Owned! Through an Employee Stock Ownership Plan, the employees purchased the company from its original owner.

  • In 1997, the Technology Council named Thermo-Twin among the fastest growing technological companies in the region, and in 1998, the Pittsburgh Business Times recognized Thermo-Twin as one of the area’s 100 fastest growing companies.

  • In 2000, Thermo-Twin became the first company in North America to purchase and install the fully automated “Super Spacer®” glass line. This space–aged technology helps reduce condensation and makes window systems that are quieter and more energy efficient than those with traditional metal spacers.

  • Thermo-Twin achieved another milestone in 2004, by offering customers state-of-the-art patio room enclosures.

  • In 2005, Qualified Remodelers Magazine listed Thermo-Twin 59th of the top 500 remodeling companies in the country.

  • In 2006, Qualified Remodelers Magazine listed Thermo-Twin 45th of the top 500 remodeling companies in the country and 35th in the top 200 specialty remodeling companies in the country.

  • In 2007, Thermo-Twin was listed in The Top 100 Manufacturers by Window & Door Magazine.

  • During 2008 & 2009, Thermo-Twin Industries, Inc. overhauled its vinyl window lines to welded frames with optional welded sashes.

  • Today, Thermo-Twin’s employee owners continue to lead the industry in manufacturing and installing the best windows, doors, sunrooms and siding.

  • In 2011, Thermo-Twin made a major upgrade to its computer technology for manufacturing, sales and accounting.  In a simultaneous launch, Thermo-Twin switched its computer network to FeneVision by FeneTech for manufacturing, Web Center by FeneTech for remote order entry, CRM by Sage for customer relation management and AccPac by Sage for the accounting needs.  These systems, which are bridged together, provide Thermo-Twin with a seamless interface for greater customer service.

  • In 2013, Thermo-Twin upgraded its welded window production with the installation 4 Point Welder which provides for increase quality and accuracy in welded window manufacturing.

  • In 2014, Thermo-Twin upgraded its vinyl double hung window product by making the Constant Force Balance System a standard.  This system provides for ease of operation in the movement of the sashes for customer convenience.  In addition, the Thermo-Twin branch office was moved to a new, updated showroom located on Peach Street in Erie, PA.

  • In 2015, Thermo-Twin remodeled its factory showroom at its Oakmont facility and installed a display of its sunroom conservatory.

  • In 2016, Thermo-Twin expanded its community involvement with a strong presence at Lernerville Speedway and supporting Western PA High School football by teaming with WPXI TV in sponsoring “SKYLIGHTS”.  SKYLIGHTS features weekly a “Game of the Week” for high school football and “Band of the Week” for high school bands, providing television exposure for local schools.

  • The employee owners of Thermo-Twin continue to support “MAKE A WISH” charity.