Interior bars protect your stuff. Exterior bars protect your home. Learn why mounting security guards on the outside is the most effective deterrent against burglary.
When it comes to securing a window, you have two main options: mounting inside the glass or mounting outside the glass. While interior bars are discreet, Exterior Window Security Bars offer a distinct tactical advantage: Pre-Breach Deterrence.
With interior bars, a burglar has to break your window just to find out they can't get in. You're safe, but you're left with a shattered window and a mess. With exterior bars, the burglar sees the steel barrier before they even step on your lawn. Most won't even bother approaching.
Criminals look for soft targets. Visible ironwork signals a "hardened target." Police statistics show that visible perimeter security reduces attempted break-ins by up to 65%.
By placing the steel before the glass, you protect the expensive window pane from rocks, baseballs, and pry bars. The barrier takes the hit, not your double-pane thermal window.
Exterior mounting usually allows you to anchor into the brick veneer, masonry, or structural studs of the house frame, which is often stronger than the interior window jambs.
The #1 enemy of exterior bars isn't a burglar—it's rust. In 2026, do not buy simple painted steel. Look for these specs:
| Feature | Exterior Bars | Interior Bars |
|---|---|---|
| Deterrence Factor | High (Visible from street) | Low (Often hidden by glare) |
| Glass Protection | ✅ Protects Glass | ❌ Glass breaks first |
| Cleaning | Harder to clean glass | Easier (Windows open normally) |
| Curb Appeal | Changes facade look | Maintains facade look |
| Installation | Drilling into Siding/Brick | Drilling into Wood Trim |
If you live in a high-traffic area or have ground-floor windows hidden by bushes, exterior security bars are the only logical choice. Stop the crime before it starts.
View Exterior Security Catalog
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Last Updated: 01/01/25
