How-To Replace Astragal Parts

Astragals cover the margin between double doors to help complete the seal against air and moisture infiltration, with aluminum construction for stability, holding power and durability.

In this video, Therma-Tru provides an easy, step-by-step, tutorial explaining how to replace the astragal boots, bolt springs, and flush bolts within an astragal. Replacing these parts requires using tools that are not provided by Therma-Tru. If you are in need of replacement astragal partsplease click here to go to Therma-Tru’s replacement parts page.

Updated on May 14, 2021

Was this article helpful?