Acrylic window inserts that press into existing frames to block drafts, noise, and energy loss.

Indow: Manufacturer of window inserts for draft blocking, noise reduction, and energy savings.
Founded in 2010, Indow is a Portland-based company focused on enhancing energy efficiency and comfort in buildings through its innovative window inserts. The company's core mission is to provide an affordable and effective solution for draft blocking, noise reduction, and energy savings. Indow's products are designed to press inside existing window frames, offering a simple yet highly effective method to improve insulation and reduce energy costs by up to 20%. Their market focus includes residential homes, commercial buildings, and historic preservation projects.
Indow has garnered attention from notable investors and environmental advocates, contributing to its reputation as a leader in sustainable building solutions. The company has received accolades for its impact on energy conservation and noise reduction, with significant achievements in both residential and commercial sectors. Indow's window inserts have been featured in various case studies and articles highlighting their effectiveness in soundproofing and thermal insulation. The overall impact of Indow's products is evident in the substantial energy savings and enhanced living conditions for its customers.
Companies similar to Indow include Alpen High Performance Products, Soundproof Windows, WonderWindow and Climate Seal.
Indow was founded in 2010.
Indow's headquarters is located in Portland, OR, US.
Indow's most recent funding round was for $1.1M (USD) in June 2016.
As of Jun 28, 2016, Indow has disclosed funding of $5.2M (USD). Undisclosed round amounts are excluded.
Indow has 48 employees as of Feb 4, 2024.
Climate Seal
climateseal.com