Founded 1946
Family Owned and Operated
Four Generations at Kasson & Keller -providing the construction industry with durable, beautiful windows at competitive prices for over seven decades.
Innovation - Technology - People
Continually investing in equipment, technology, training and education. We are committed to providing the most innovative products and great service.
Made in the Northeast
We are the largest regional window manufacturer in the Northeast providing employment and producing energy efficient, durable beautiful windows and doors.
quality windows Since 1946

Made in the Northeast  for the Northeast 

Kasson and Keller manufactures a complete line of replacement and new construction vinyl window products. Our products have been installed in projects ranging from Tract Builders, Multi-Million Dollar homes, 10 story federal housing projects and in U.S. Military Facilities.

  • Commercial rated products
  • Architectural Product Finishes
  • Patio Doors
  • Special Shapes
  • Accompanying products for all Window Systems

In 1946 Austin Kasson and William Keller Sr., along with 3 employees, started selling blown-in insulation for homes. The next year, 1947, Kasson and Keller added a line of storm windows and doors to their business. They further expanded in 1951 by operating with 10 employees and opening a factory to assemble parts that are used in storm windows and doors for other companies who manufactured the finished product.

By 1956 Kasson and Keller had started to manufacture their own exclusive line of aluminum products as their own brand: “Kasson and Keller.” To start out they produced 7 lines of windows, 3 lines of doors, roll-up awnings, and more. The 80’s saw vinyl becoming increasingly popular in the market and Kasson and Keller started to manufacture vinyl windows.

Four Generations at Kasson and Keller have seen numerous periods of growth and expansion. Today they manufacture 3 distinct brands to serve the diverse markets as the premier independant window manufacturer in the Northeast. Our family of businesses include: Keymark Corporation an aluminum extruder with plants in NY and FL and F&F Transportation

  • Employs over 1,100 Associates

Kasson and Keller is committed to improving our efficiency, safety and consistency.

  • Robotic flow framing system increases safety of operators by eliminating frame handling between welder, cleaner and assembly lines for optimized flow AND increases throughput.
  • Intergrid fabricator increases turnaround and reduces production bottlenecks. Patented pre-punch design with component sequencing that eliminates scratching and cleaning while ensuring easy assembly
  • Automated batch cutting brings technology and speed to miters using pneumatic linear crosscut technology.
  • Four Point Frame and sash welder incorporates symmetric and parallel welding techniques
  • Company owned and managed trucking company, reducing the need for third party shipping – to get your product to you on time!

Innovation – Invention – Ingenuity


Your Orders are important to us and we have invested in state if the art software for quoting & ordering including:

  • clear & concise acknowledgments
  • advanced shipping notices
  • user friendly receiving documents

Behind every great solution and project stay hours of hard work, multiple tests and discussions.

Justin Pasi
Our brands

windows and doors

Ecoshield Logo

Our line of Ecoshield vinyl windows are built with top-quality sustainable materials and designed to deliver ultimate satisfaction through advanced technology energy efficiency, visual appeal, and peace of mind for every builder and homeowner

Masterview Logo

Our Masterview Brand is created exclusively for LMC -a leading Forest Products and Building Materials Buying Group owned by independent lumber and building material dealers across the country.

Smarter Logo

Our Smarter Brand is  developed for the demands of the LBM Advantage Buying group, one of the country’s largest and most experienced, wholly member-owned buying cooperative for the lumber and building materials industry.

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Our Projects

Stunning projects for our amazing clients.