Company News

January 21, 2020

Westchester Double Hung Window Takes Market by Storm with Structural/Thermal Performance Ratings Rarely Found in Category

New line combines century-old aesthetics with modern engineering efficiency.

Red Bluff, CA – (January 21, 2020) – The Westchester Double Hung Window by Sierra Pacific Windows has taken the high-end window market by storm with structural and thermal performance ratings that are rarely found in double hung windows. The new line also features the narrowest check-rail sightline for high end windows, along with historically accurate sash proportions.
“This is an unprecedented marriage of form and function, which is creating some very high demand among builders and designers,” said Vice President of Business Development Bob Taylor. “There’s never been a product like the Westchester that so beautifully brings together century-old charm and style with today’s unrivaled technology.”
With a performance rating of PG50 on most standard sizes, the Westchester window offers structural and thermal performance ratings that are almost unheard of in the double hung window market. The line has 0.28 U-value with dual insulated Lo-E 366 and argon, and a triple insulated glass U-value of 0.17.
  • 60”x108” maximum size for 1 ¾” sash
  • 72”x120” maximum size for 2 ¼” sash
  • Thermally broken sash construction
  • Integral aluminum nail fin
  • Constant force balances standard; optional Class 5 Hybrid Spiral Balance for sash up to 140 pounds
  • Patent-pending traditionally styled combination sash lock, sill end caps and drainage system, and multi-point tilt latch
  • Used for both residential and commercial applications
For more information on the Westchester Double Hung Window, visit Booth N1426 at the International Builders’ Show, or go to or call 800-824-7744.


Sierra Pacific Windows is a division of Sierra Pacific Industries, a family-owned forest products company. Based in Red Bluff, California, Sierra Pacific Windows is one of the largest manufacturers of superior quality, custom wood and vinyl windows and doors in the world. It is the only fully vertically-integrated seed-to-window window and door company, in which the company owns the forestland and manages the entire manufacturing and distribution process. Sierra Pacific Windows has a combined manufacturing production space of over 2 million square feet in California, Wisconsin, and Alabama. Its windows and doors are distributed via more than 600 nationwide dealers, distributors and company-owned locations.


SPI is a third-generation, family-owned forest products company based in Anderson, California. The company owns and manages over 2.4 million acres of timberland in California, Washington, and Oregon. Along with being a windows manufacturer, it is one of the largest US lumber and millwork producers. SPI is committed to managing its lands in a responsible and sustainable manner to protect the environment while providing quality wood products and renewable power for consumers. The company’s forests are certified under the Sustainable Forestry Initiative®. Sierra Pacific Industries utilizes nearly 100 percent of every piece of wood brought to its 18 sawmills and eight biomass-fueled cogeneration power plants.

Media Contact Information:
April Lucas

Sierra Pacific Windows

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