Welcome to the

Attachments Energy Rating Council

Our aim is to develop an energy certification and rating program that is credible, comparable, relevant, and cost-effective for residential and commercial window attachment products.

2017 AERC Fall Meeting: Boston, MA November 6th and 7th. To apply for membership and attend the meeting, click on the Membership link below.

About AERC

Learn more about the organization.


Explore the various types of AERC membership and our list of current members.

Manufacturer Enrollment

Enrollment in the AERC Energy Improvement Rating program is now open to window attachment manufacturers.