About Us


At NW Siding and Windows, we provide the finest replacement windows and siding products for your home. When you work with NW Siding and Windows, you will receive personal attention, professional installation, and a company you can count on.

We are authorized dealers for Milgard and Cascade windows in addition to Therma Tru and Anderson doors. We also support siding firms including James Hardie, Crane and Western Red Cedar. These are some of the finest manufacturers in our industry and we are proud to be representing their products.

NW Siding and Windows, formerly known as NW Siding Contractors, Inc., has been family owned and operated since 1996. We treat each of our customers like one of the family. Whether you need windows, siding or doors, we are committed to providing the finest products at reasonable prices.

If you need siding, windows or new doors for your home, you’ve come to the right place. NW Siding and Windows is based in Sherwood and services all of Northwest Oregon and the Portland Metropolitan area.

We are AAMA certified (American Architectural Manufacturers Association)!

Proudly Serving:

Beaverton • Canby • Clackamas • Cornelius • Forest Grove • Happy Valley • Hillsboro • Lake Oswego • Milwaukie • Newberg • Oregon City • Portland • Salem • Sherwood • Tigard  • Tualatin  • West Linn • Wilsonville • Woodburn

Company History

In June 1996, Steve Aufenthie started the siding company out of his home; the primary focus was re-siding. Ken Feldman joined the business soon after. The company has grown over the years to become one of the largest siding, window, and door replacement specialists in the State of Oregon. A new direction was taken in 2009 to specialize in exterior remodeling and windows. The name evolved to NW Siding and Windows to reflect the expansion of the company.

  • James Hardie Preferred Remodeler since 1997

Vision Statement

NW Siding and Windows strives to become a world class company by accomplishing the following:

  • Consistently satisfying customers
  • Providing growth opportunities for employees
  • Rewarding employees for outstanding performance
  • Being a leader in the industry
  • Being consistently profitable

Mission Statement

NW Siding and Windows is in business to improve the lives of our customers by providing the highest quality products, workmanship, customer service and creating the best possible experience for them. Northwest Siding and Windows is also in business to improve the lives of our employees by providing personal and financial growth opportunities and creating long term growth, profitability and stability for the company.

Core Values

What we stand for:

  • Do first rate work and stand behind it
  • Treat others as you would want to be treated – do the right thing
  • Communicate clearly
  • Be fair and honest
  • Seek continual improvement