Delmoar Fixed Window Safety Guard 14”x 38” Adjustable Width Prevents Accidental Falls, Non-Egress, Tamper Resistant Screws Included, White, Single Pack

Why I installed this window guard

A low-sill upstairs window in my home made me nervous. It’s in a hallway where kids tend to congregate, and while the screen keeps bugs out, it won’t stop a determined toddler. I wanted a clean, fixed barrier that would let us open the sash for airflow but dramatically reduce the chance of a fall. That’s exactly the niche this Delmoar window guard fills, and after installing and living with it for several weeks, I’m impressed with its balance of simplicity, sturdiness, and thoughtful design—along with a few limitations you should plan for.

Installation and fit

This model is 14 inches tall and adjusts to fit openings from 21 to 38 inches wide. It’s meant for vertical windows and mounts over the interior casing, not in-between the sash tracks. I measured across the interior trim (inside edge to inside edge), which is the correct way to size it. The adjustable side channels gave me enough play to dial in a snug, square fit.

Tools I used:
- Tape measure, pencil, level
- Drill/driver and small drill bit for pilot holes
- A security driver bit for the tamper-resistant screws
- A second set of hands (optional but helpful)

Hardware is included, and the screws are tamper-resistant. Depending on your kit, you may or may not get a matching driver bit—check your box before you start, or have a compatible bit on hand. Mounting itself is straightforward: mark your height, level the guard, pre-drill, and drive the screws through the flanges into the casing. If your trim is thin or you’re covering a wider span, try to catch studs or use appropriate anchors; the guard’s strength is only as good as what you fasten it to.

I mounted mine to limit the maximum opening of the lower sash to just under the height of the guard. If you want more ventilation, you can mount higher, but make sure any gap remains safe for your use case. One practical tip: do a dry fit and cycle the window a few times before final screws go in to ensure nothing binds and that blinds/curtains clear the bars.

From box to done took about 25 minutes solo, excluding a quick run to my tool drawer to find the right security bit. If you’re smaller in stature or working above a stair landing, a helper makes it easier to hold the guard steady while you set the first two screws.

Build quality and design

The construction is reassuringly rigid. The bars don’t flex or rattle, and the whole unit sits flush against the trim once tightened. The finish on my unit is a clean white that blends with standard painted casing. It’s unobtrusive—present enough to be a deterrent from outside, but not a visual eyesore from inside.

Bar spacing is 3.8 inches, which is a crucial detail. Many building guidelines cite a maximum 4-inch gap for guards and railings to prevent small children from squeezing through; this falls just under that threshold. The spacing is uniform and well-aligned.

The form factor is intentionally minimal: no hinges, releases, or moving parts. That simplicity enhances strength and reduces maintenance but also defines where you can use it safely (more on that below).

Day-to-day use

Once installed, the guard becomes forgettable in the best way. It doesn’t squeak, doesn’t impede blinds in my setup, and it allows the window to open enough for airflow without creating a fall hazard. Cleaning the sash and screen is still easy; I can remove the screen from the inside without removing the guard. If you routinely need full, unobstructed access for deep cleaning, you’ll either want to place the guard slightly higher or plan to remove and reinstall periodically.

From a security standpoint, the tamper-resistant screws make casual removal from inside difficult, which is the point. If you’re using it primarily as a deterrent on a ground-floor window, it adds a layer of visible, permanent-looking protection without resorting to heavy exterior bars.

Safety and code considerations

This is a fixed, non-egress guard. That means it’s not designed to release quickly in an emergency. Do not install it in bedrooms or any sleeping area unless there is an alternate, code-compliant emergency exit. Local codes vary, so if you’re unsure, check before you commit. This is ideal for hallways, living areas, stair landings, or any spot where you want to limit fall risk without compromising an escape route.

It’s also designed for vertical windows. Don’t use it on horizontal sliders or casement/awning windows. The mounting flanges and bar orientation assume a traditional vertical sash layout, and using it elsewhere could be unsafe.

Stacking and sizing options

At 14 inches tall, a single unit protects a modest band of the opening. For taller coverage, the guard can be stacked “one-by-one” to increase height. If you go this route:
- Keep consistent spacing between units to avoid creating an exploitable gap.
- Ensure each guard is independently secured to solid material.
- Maintain sightlines and access you’ll need for cleaning and maintenance.

Delmoar offers other sizes as well, including taller/wider formats, which may reduce the need to stack. If you’re spanning a larger opening, I’d choose a single taller unit wherever possible; fewer fasteners and fewer seams usually mean a stronger, cleaner installation.

Where it shines

• Child safety in non-sleeping areas: The sub-4-inch bar spacing and fixed design give real peace of mind on low-sill or bench-adjacent windows.
• Quick, no-fuss install: With basic tools and a level, you can get it mounted swiftly.
• Clean look: The white finish blends with typical trim and doesn’t dominate the room.
• Light security: It’s not a security grille, but it’s a visible barrier and uses tamper-resistant hardware.

Trade-offs and limitations

• Non-egress: This is the defining limitation. If you need a guard in a bedroom, look for an egress-rated model with a quick-release mechanism.
• Compatibility: Not for horizontal sliders or casement windows, and you need sufficient interior casing to mount securely.
• Height: At 14 inches, it’s a targeted solution. For larger windows or higher risk areas, plan on stacking or choosing a taller size.
• Hardware specifics: The tamper-resistant screws are welcome, but have the right driver bit ready. Also, count hardware before starting so you’re not caught mid-install.

Tips for a better install

• Measure twice: Across the interior casing, not the glass or screen.
• Pilot holes: Pre-drilling reduces the risk of splitting trim and helps the guard sit square.
• Find structure: If your trim is thin, locate studs or reinforce with appropriate anchors.
• Mind the treatments: Check clearance for blinds and shades before finalizing placement.
• Plan the opening: Mount at a height that limits the sash opening to your comfort level while still allowing ventilation.

Who it’s for

• Parents and caregivers wanting a passive safety barrier in hallways, living rooms, or stair landings.
• Homeowners looking for a discreet deterrent on vulnerable windows that still allows everyday use.
• Landlords seeking a simple, tamper-resistant solution for common areas (where local codes permit).

If you need bedroom use, or you require a guard that can be opened quickly in an emergency, consider an egress-rated window guard with a release mechanism instead.

The bottom line

The Delmoar window guard hits a practical sweet spot: sturdy, simple, and tidy-looking protection for vertical windows within its size range. It installs quickly with basic tools, the metal construction feels solid, and the 3.8-inch bar spacing aligns with common safety guidelines. The design is intentionally non-egress, so it’s not a fit for every location, but in hallways and living spaces where a fixed barrier is appropriate, it performs exactly as intended.

Recommendation

I recommend this window guard for non-bedroom, vertical window applications where reducing fall risk is the priority. It’s easy to install, blends in well, and provides a real sense of security without complicating daily window use. Just verify your window type and width, plan your mounting points, and be mindful of egress requirements. If those boxes are checked, this is a dependable, no-drama solution.