Collection: Soundproof Windows & Window Inserts

Yes, soundproof window inserts are extremely effective. Our Fantastic Frame™ Soundproof Window Inserts reduce sound through your window by up to 80% and cut energy transfer by up to 60%, with strong performance even at low frequencies like road noise. Installing them across your windows typically saves 30-40% on energy bills.

No exterior window is completely soundproof, but performance varies widely. Look for the STC rating, since higher is better. Typical exterior windows range from STC 26-36. Upgrades like laminated glass, wider air gaps, and tight seals improve performance, and you can boost any existing window further with Fantastic Frame™ Soundproof Window Inserts.

Each option here solves a different problem, so pick based on what you're trying to fix.

For interior windows, there's none better than the Tru Acoustics™ Soundproof Window, rated up to STC 56, built to perform in rooms with the highest sound standards like recording studios, gun ranges, and theater watch rooms.

If you're looking for an exterior window, there's a huge range of performance from single-pane up to hurricane glass. What you want is the STC rating to tell you how good it is at blocking sound. Most residential windows fall between STC 26 and STC 36. An STC 26 window lets through about twice the noise of an STC 36 window.

Thicker glass, multiple panes with a large air gap, and a tight seal when closed all raise the STC rating. Laminated glass is about 20% quieter than tempered glass at the same thickness, and its damping performance drops in cold weather, so in double-glass construction put the laminated pane on the interior side. With multiple panes, bigger air space is better (+2-3 STC points per doubling of the gap).

Start with the basics: make sure your window frame is properly sealed with Acoustical Sealant Caulk. After that, a Fantastic Frame™ Soundproof Window Insert can upgrade any window significantly, reducing sound through it by up to 80%.

Yes, a little. Replacing a single-pane window with a double- or triple-pane window reduces noise transmission, but the STC rating is what really tells you how well a window blocks sound. Here are the common STC ratings by window type.

Common Window STC Ratings

No, window film blocks UV and reduces heat, but it doesn't block sound. Pair it with Fantastic Frame™ Window Inserts for additional energy efficiency plus noise reduction.

No, weatherstripping alone won't block noise, but sealing an unsealed window can reduce noise transmission by up to 5 dB depending on how poorly it was sealed to begin with.

No, foam absorbs echo inside a room but isn't heavy enough to block outside noise. For real noise reduction on a window, use Fantastic Frame™ Soundproof Window Inserts instead.

When soundproofing glass walls, consider the glass as well as the ceiling above it. If there's a shared dropped ceiling, use CelluZorbe HD Ceiling Tile Backers above the ceiling tiles. For the glass itself, add Fantastic Frame™ Window Inserts to improve the STC rating while keeping a clean glass look.

Start by sealing air leaks with Acoustical Sealant Caulk. For real noise reduction, add a Fantastic Frame™ Window Insert. Installation requires our handy swivel clips and an extra set of hands, so grab a helper.

Read more on how to soundproof a skylight here.