What is your warranty?
There is a limited lifetime warranty which is transferrable to a second owner.
Why a double hung window?
Ease of cleaning plus you have the option of opening only the top sash for ventilation.
What is your biggest selling color?
By far it is our “bright white” color in all of our markets. While other companies offer a “dull” white, we at Thermo-Twin take pride in manufacturing a “bright white” window which will look white for years to come.