BOSS roofing has partnered with Thermo-Twin Windows

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Thermo-Twin Windows has been providing window solutions to the Pittsburgh and Erie regions for 50 years. Thermo-Twin has evolved from being a glass supplier to the window manufacturer and remodeling company. Our expertise is in designing, manufacturing and installing windows, sunrooms, doors, and patio rooms. We’re proud to be an employee-owned company, and we’ve made it our priority to deliver quality products made locally in Pittsburgh, PA.

Pittsburgh’s ONLY Complete Window and Sunroom Company!
Measuring, manufacturing of frames and sashes, insulated glass units, assembly, and quality control inspection are all done at our Pittsburgh facility from locally sourced materials. Installation is done by our own experienced crews of highly trained professionals. Thermo-Twin is an Employee-Owned company, and we take pride in providing complete customer satisfaction.


  • Abnormally high energy bills
  • Difficulty opening and operating windows
  • Visible signs of water, insects, or other debris
  • Fogging in between the glass obscures your view

A large factor with vinyl is its purity. The more pure the vinyl, the better the finished product and the longer the life expectancy:​

  • At Thermo-Twin, we only manufacture with vinyl extrusions which were created from 100% virgin vinyl.  In doing this, we at employee owned Thermo-Twin guarantee from day one your windows or doors, whether bright white, tan, or brown, will be a beautiful addition to your home.
  • Vinyl frames are low maintenance and provide good thermal insulation. Sections may be hollow or filled with foam insulation. Wide vinyl sills may be reinforced with metal or wood.
  • Local materials used in the manufacture of all of our windows.  Thermo-Twin uses extrusion and glass from local companies here in Western Pennsylvania.


Tell’em BOSS sent you!