Larson ComfortSEAL Interior Windows

Interior Windows

ComfortSEAL Interior Windows

Interior windows mount inside your home to block drafts, reduce outside noise and increase energy efficiency.

  • Installs inside the home and fits almost any window.
  • High-performance Low-E glass makes your home more comfortable and reduces fading. All comfortSEAL windows available with Low-E glass.
  • Low-E glass is EnergyStar® certified.
  • Super easy installation in ten minutes with just a few screws.
  • Limited lifetime warranty.

ComfortSEAL Interior Window Options

Color Options

Glass Options

Measuring and Installation

Measuring Just Got Easier!

Measure your opening width at the top, center and bottom. Measure your opening height on the sides and middle. Use the smallest measurement. The comfortSEAL window is automatically sized to fit the opening.

ComfortSEAL Measuring Guide