Backed by The Good Housekeeping Research Institute

Carp's has been a proud seal holder since 2001 after being reviewed by experts at the Good Housekeeping Research Institute (GHRI). The GHRI is the product-evaluation laboratory of the magazine, with a staff of scientists, engineers, nutritionists, and researchers dedicated to evaluating and testing everything from moisturizers to bed sheets to cell phones.

The Research Institute was founded in 1900 to improve the lives of consumers and their families through education and product testing. 

Why upgrade your windows? Here are some tips from Good Housekeeping and Carp's

It's energy efficient.
Carps windows control air traffic by conserving heat in the winter and releasing it in the summer. For more information see Good Housekeeping's Going Green Tips and Carps's Window Energy Information.

It protects your furnishing.
Carps's UV-blocking glass prevents furnishing from fading from the sun. For more information see Good Housekeeping's list of 100 Problems Solved by the Seal and Information about Carps's Comfort 365 Glass.

It will make your home feel like new.
Installing new windows is a great step towards renovating your home.