Best Window Security Bars in the USA (2025)

Top Manufacturers, 30 Popular Products, and How to Choose

Window bars remain one of the most cost-effective ways to harden a property against forced entry—especially for ground-level, basement, and alley-facing windows. This guide compares the leading manufacturers that sell in the U.S., highlights 30 high-demand products, and explains how to choose between fixed, hinged/egress, and adjustable solutions. We also show where SWB (Security Windows Bars) stands out with its telescopic vertical and modular horizontal design.

What types of window bars exist—and who should buy what?

Fixed (NON-EGRESS) guards are the simplest intrusion deterrent and are commonly listed as child-fall prevention devices; however, they must not be used on bedroom egress windows without a compliant release system. The Home Depot

Hinged/egress bars allow quick interior release for code-critical openings (bedrooms, basements), offered by brands like Grisham (PP-SPAG) and Guardian Angel. The Home DepotHD Supply

Adjustable/telescopic bars reduce sizing guesswork (e.g., Unique Home Designs horizontal adjustable; Mr. Goodbar swing-away models). The Home Depot

Aesthetic/alternative options include clear polycarbonate bars (ViewProtect) and stainless security screens (Crimsafe), favored where sightlines and airflow matter. ViewProtectCrimsafe USA

Top manufacturers selling in the U.S.

Unique Home Designs — fixed & hinged families; broad Home Depot presence. uniquehd.comThe Home Depot
Mr. Goodbar — swing-away/removable lines; long-standing brand. goodbarsecurity.com
Grisham — AWG fixed and PP-SPAG hinged/egress. GRISHAM BROS., LLCThe Home Depot
Prime-Line (Segal/Defender) — multiple fixed sizes; child-fall prevention focus in copy. Prime-Line Parts
Knape & Vogt (John Sterling) — fixed and hinged safety guards. knapeandvogt.com
Guardian Angel — safety release window guards, ASTM F2090 positioning. HD Supply
ACI Supply — custom burglar bars, decorative and standard. acisupply.com
ViewProtect — clear DIY bar kits and alarm-integrated options. ViewProtect
Crimsafe — security screens via U.S. dealers (alternative category). Crimsafe USA
Mulholland Brand — custom U.S. steel bars/screens. MulhollandBrand.com

30 popular products buyers actually see

Mr. Goodbar Swing-Away 1-Bar (29–42″) — hinged. The Home Depot
Mr. Goodbar Removable 1-Bar (21–28″) — popular listing. The Home Depot
Mr. Goodbar Swing-Away multi-bar options — family page. Lowe’s
Grisham AWG 3-Bar (Black) — NON-EGRESS. The Home Depot
Grisham AWG 3-Bar (White) — NON-EGRESS. The Home Depot
Grisham PP-SPAG 4-Bar — hinged/egress. The Home Depot
Grisham PP-SPAG (family) — hinged/egress positioning. Amazon
UHD 6-Bar Horizontal Hinged (23-1/4″–42-1/2″). The Home Depot
UHD 3-Bar Hinged (Horizontal). uniquehd.com
UHD 4-Bar Fixed (Horizontal). uniquehd.com
Prime-Line/Segal S-4767 (31–54″ × 21-1/2″) — NON-EGRESS. Prime-Line Parts
Prime-Line/Segal S-4764 (22–38″ × 21-1/2″) — NON-EGRESS. The Home Depot
Prime-Line/Segal S-4752 (23.5″ × 23.5″) — fixed. Lowe’s
Prime-Line/Segal S-4780 (31″ × 21.5″) — fixed. Lowe’s
Guardian Angel 3558-3 (35–58″ × 13″) — safety release. HD Supply
Guardian Angel 7320-5 (73–120″ × 21-3/4″) — safety release. HD Supply
Guardian Angel (family catalog/FAQs). angelguards.squarespace.com
Knape & Vogt John Sterling 1133 (3-bar, 24–42″). Amazon
Knape & Vogt John Sterling 1134 (hinged, 4-bar). zoro.com
Knape & Vogt LW-1124-DB (24 × 20 fixed). Lowe’s
ACI STNDAIM (Std. Angle-Iron Mount). acisupply.com
ACI DECFD (Decorative Flower). acisupply.com
ACI DECIWS (Insert with Spears). acisupply.com
ViewProtect Clear Safety Bars (DIY). ViewProtect
ViewProtect Armed Bars (alarm-ready). ViewProtect
Crimsafe Regular (window screens). Crimsafe USA
Crimsafe Ultimate (window screens). Crimsafe USA
UHD “Su Casa” 9-Bar 48″ × 48″. The Home Depot
Grisham Spear Point Guard (decorative). GRISHAM BROS., LLC
Defender/Segal S-4768 lineage (fixed). Amazon

Pros and cons vs. alternatives

Metal bars (fixed/hinged)

Pros: strong physical deterrent; budget-friendly; broad size coverage; well-documented install. Cons: fixed bars on egress-required openings are not code compliant; hinged kits add parts and install time.

Clear bars (polycarbonate)

Pros: maintain views/light; high impact strength (Lexan®); DIY kits available. Cons: price premium; UV and scratch considerations.

Security screens (stainless mesh)

Pros: boost security with airflow and bug control; aesthetic. Cons: custom-made and higher cost; professional install.

Where SWB stands out (and how to spec it correctly)

Coverage flexibility:

SWB’s telescopic height reaches tall openings (~65″ stated on Model A/A-EXIT pages) while modular width extends spans by adding modules—useful for wide sliders or grouped windows. Security WB-Model «A»

Mounting options:

Model A (frame or wall), Model B (explicit frame or wall mount), Model A/EXIT (quick-release interior operation). Security WB-Models

DIY & value:

SWB sells direct on its site (often cheaper than marketplaces) with install guides. Buy Now

Buying guide (5 steps)

Identify egress windows. Bedrooms/basements typically require an emergency escape path; if yes, choose a hinged/quick-release solution.
Measure precisely. Record clear opening height/width and check telescopic/adjustable ranges on the product page (e.g., UHD 23-1/4″–42-1/2″, Prime-Line 22–38″/31–54″).
Choose mount type. Frame-mount is discreet; wall-mount handles imperfect frames—SWB explicitly supports both (Model A/B). Security WB
Plan hardware & finish. Look for powder-coat finishes and tamper-resistant hardware (common across leading brands).
DIY or pro? Most SKUs are DIY-friendly; hinged releases require careful alignment and testing (see brand install guides).

Frequently asked questions

Do I need a quick-release bar on bedroom windows?

If the window is designated for emergency escape, choose a hinged/release solution per local code and manufacturer guidance (e.g., Grisham PP-SPAG, Guardian Angel safety-release).

Are adjustable bars safe?

Yes when properly installed within stated ranges using the supplied hardware; look for products clearly labeled egress vs NON-EGRESS.

What if I want security without the “bar look”?

Consider clear polycarbonate bars (ViewProtect) or security screens (Crimsafe) for a cleaner aesthetic.

SWB models (quick spec overview)

Model A

Telescopes up to ~65″ height; modular width; frame or wall mount. Ideal for tall or irregular openings. View model «A»

Model B

Telescopic and explicit wall-mount option for masonry/drywall installs. View model «B»

Model A/EXIT

Telescopic plus quick-release for emergency exit scenarios (verify local code). View model «A7EXIT»