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The City of Portland, Oregon

Sustainability at Work

Providing free tools and expertise to achieve your goals

Phone: 503-823-7037




logoIndow manufactures window inserts that press inside your window frames to give you double pane performance at a much lower cost. Inventor Sam Pardue developed the inserts for his lovely but leaky old windows. They are held in place by a patented compression tube and fitted perfectly using a laser measurement system.

Indow has a triple bottom line mission of benefiting the environment by reducing carbon emissions, building the community by partnering with local non-profits, investing in its employees, and growing the company so that it can do more of these good things.


Gold Certification

  • Utilizes the minimum amount of packaging necessary to transport and ship their product.
  • Asks all vendors to minimize packaging and waste.
  • Purchases 100% of their energy from Pacific Power’s renewable energy program.
  • Developed a laser window measurement system to minimize waste, in addition to ensuring a tight seal once the product is installed.
  • Awarded the Sustainability Award at the 2011 Cleantech Open.
  • Indow Windows is fortunate to have a team of green-minded individuals working to advance the company’s sustainability goals. 


Indow insert in place

Indow customer


2267 N Interstate Ave, Portland, OR 97227