Security Film: What Homeowners Need to Know Before Buying

Security window film is one of the most misunderstood products in the window treatment category. Homeowners often ask whether it makes glass bulletproof or shatterproof. The honest answer is no — and understanding what it actually does is what helps you decide whether it is right for your home.

What Security Film Does

When glass breaks, it shatters into fragments and creates an opening almost instantly. Security film changes that dynamic: the film holds broken glass fragments together in a web pattern, which means a broken pane stays largely in the frame rather than falling away. A burglar must now work through that held-glass barrier, which takes time and makes considerable noise.

Sun Control Specialists installs Solar Gard Armorcoat films ranging from 4 mil to 14 mil thickness. The thicker the film, the longer the hold time under sustained impact. Most residential applications use 8 mil, which provides a meaningful delay without visible film distortion.

What It Does Not Do

Security film does not prevent glass from breaking. A hard impact will still crack or shatter the glass — the film simply prevents that broken glass from becoming an instant point of entry. It is a delay tactic, not a physical barrier. Paired with an alarm system and good exterior lighting, it meaningfully raises the deterrent profile of your home. On its own, it is one layer of a broader security approach.

Right Applications

Security film is most valuable on ground-floor entry points: sliding doors, sidelites beside front doors, garage entry windows, and first-floor bedroom windows. It is also installed on glass storefronts, retail locations, and commercial properties where smash-and-grab theft is a concern.

We install Solar Gard Armorcoat anti-intrusion film throughout the region. Explore security window film in Gladwyne, Villanova, Bryn Mawr, Radnor, and Chestnut Hill.