Choosing the best indoor window security bars depends on what you need to protect and how your window opens. Some options act as a wide child-safety guard, while others use adjustable tension to help secure a sliding window or door. Compare the fit, installation style, and intended use before you buy—and make sure any added barrier won’t block a required emergency exit.
Table of Contents
Quick Comparison
| Product | Best For | Fit or Size | Installation Style |
|---|---|---|---|
| Gardenova Window Safety Guards, 2-Pack | Wide windows and child safety | 32.5–62.5 inches wide; 29.92 inches high | No-drill, counterforce support |
| Povtulu Adjustable Sliding Door Security Bar | Sliding windows or doors | 17–50 inches | Adjustable bar with rubber tips |
| ARTOSHIN Adjustable Window Security Bars, 6-Pack | Several windows or sliding openings | 19.6–35.4 inches per bar | Spring-tension bars |
Our Picks: Best Indoor Window Security Bars Interior reviews
Gardenova Window Safety Guards: A Wide No-Drill Option for Child Safety
The Gardenova set is designed as a broad interior guard for windows, with a listed fit range of 32.5 to 62.5 inches wide and a height of 29.92 inches. It comes as a two-pack, which may suit a home with more than one window that needs a barrier.
Its no-drill, counterforce design is intended to hold the guard in place without drilling into the surrounding wall or window area. The bars have a stated 2.68-inch gap and a smooth surface. Those details make this option more focused on creating a child-safety barrier than on adding a compact lock to a sliding sash.
Measure the usable opening carefully and check that the guard’s contact points can sit securely on your particular window. The product description lists flat, fixed, bay, and sliding windows as compatible, but the fit still depends on the opening and its surfaces. This guard is not a substitute for checking local requirements or making sure a window can still serve as an emergency exit.
Compared with the two tension-bar options below, the Gardenova is the better match for a wider opening and a barrier spanning much of the window. Its larger format may be less suitable if you want a small, portable bar or need to adjust a narrow opening.
Pros:
- Two guards are included.
- Adjusts to openings 32.5–62.5 inches wide.
- No-drill installation is intended to preserve the surrounding surface.
- Stated 2.68-inch spacing is designed with child safety in mind.
Cons:
- The wide size range does not guarantee a secure fit on every window shape or surface.
- A broad guard may not be the right choice when you need a portable or compact window lock.
Verdict: Choose the Gardenova set if you need a wide interior guard for child safety and your window can support its counterforce installation.
Povtulu Adjustable Security Bar: A Portable Choice for Sliding Openings
The Povtulu is an adjustable metal bar intended for sliding doors and windows. It spans 17 to 50 inches and includes an extension rod, giving it a broader adjustment range than the ARTOSHIN bars. Rubber tips are listed in the product title, and the description says the bar installs without drilling.
This style is meant to brace a sliding opening rather than form a full-height guard across a window. The product description says setup takes a few steps and can be completed in one to two minutes. Its adjustable format may also make it easier to pack for travel than a wide window guard.
Check how the bar is intended to sit in your specific window before relying on it. A bar designed for a sliding door may not suit every window frame, and the listed range alone does not confirm compatibility with your opening. Like other interior security bars, it should not block a window that needs to remain usable for emergency escape.
Compared with the Gardenova, this is a more compact, removable option rather than a broad child guard. Compared with the ARTOSHIN pack, it covers a larger stated span with one adjustable bar, but the set includes fewer individual bars.
Pros:
- Adjusts from 17 to 50 inches.
- Includes an extension rod for added length flexibility.
- No-drill setup is described in the product details.
- Portable design may be useful at home or while traveling.
Cons:
- Its bar format is not a full-window child guard.
- Confirm that its placement and fit work with your particular window frame.
Verdict: The Povtulu is a practical option if you want a removable bar for a compatible sliding window or door and need an adjustment range up to 50 inches.
ARTOSHIN Adjustable Bars: A Six-Pack for Multiple Narrower Openings
The ARTOSHIN set includes six adjustable bars, each measuring about 19.6 to 35.4 inches. A built-in spring provides tension to hold each bar in place. The product is described as suitable for interior use on sliding windows and doors, so it may be useful when you need bars for several openings or more than one position.
The bars are made of steel and have an electrostatic spray finish. That finish is described as rust-resistant, with a smooth surface. Their individual adjustment range is narrower than the Povtulu’s, but having six bars gives you more pieces to work with across compatible openings.
The product description also lists non-window uses, such as closet or shelf support. For security use, however, focus on the stated window and sliding-door applications and confirm the bar can sit firmly in the opening. Spring tension is not the same as a permanently mounted barrier, so don’t treat the bars as a guaranteed defense against forced entry.
Compared with the Gardenova, these are individual tension bars rather than a wide guard with closely spaced rails. Compared with the Povtulu, they offer more bars in the package but a shorter adjustment range per bar.
Pros:
- Six bars are included for multiple openings.
- Each bar adjusts from about 19.6 to 35.4 inches.
- Built-in spring tension holds the bar in place.
- Steel construction has a smooth, coated finish.
Cons:
- The individual bars have a shorter maximum span than the Povtulu bar.
- Spring tension requires a suitable opening and secure placement.
Verdict: Pick the ARTOSHIN set if you need several tension bars for compatible, relatively narrow sliding openings.
How to Choose Indoor Window Security Bars
Match the Bar to Your Main Goal
Start by deciding whether you need a child-safety guard across a wide window or a bar that braces a sliding opening. The Gardenova is a wider guard with rails, while the Povtulu and ARTOSHIN options are adjustable tension bars. These designs serve different purposes and are not direct substitutes for one another.
Measure the Opening and Check the Fit
Measure the exact area where the bar or guard will sit, not just the outer frame. Compare that measurement with the listed range: 32.5–62.5 inches wide for the Gardenova, 17–50 inches for the Povtulu, and about 19.6–35.4 inches per ARTOSHIN bar. Also check the shape and surface of the opening, since a listed range does not ensure a stable fit in every frame.
Understand How It Installs
The Gardenova uses counterforce and is described as no-drill. The Povtulu is also described as a no-drill adjustable bar, while the ARTOSHIN uses built-in spring tension. With any pressure-held product, follow the included instructions and check that it remains firmly positioned. If your window needs a fixed or professionally installed safety device, a removable tension bar may not meet your needs.
Consider Emergency Access
A security bar can affect how quickly a window opens. Before installing one, consider whether the window is a required emergency exit and whether household members can remove or release the barrier when needed. Check applicable local rules and product instructions, especially if you are adding a guard to a bedroom window.
Choose the Right Quantity
Think about how many openings you want to secure. The Gardenova comes as a two-pack, and the ARTOSHIN includes six individual bars. The Povtulu is a single adjustable bar with an extension rod. Match the package size to your openings, while keeping in mind that each opening must fall within the product’s size range.
Set Realistic Security Expectations
Indoor bars can help restrict movement through a sliding opening, but the products listed here differ in design and stated use. A tension bar or child-safety guard should not be assumed to provide the same protection as a permanently installed security system. Use the product for its intended purpose and consider other appropriate security measures for your home.
Frequently Asked Questions
Are indoor window security bars the same as child-safety guards?
No. A wide guard such as the Gardenova is designed with child safety in mind, while the Povtulu and ARTOSHIN products are adjustable bars for compatible sliding openings. Choose based on the job you need the product to do.
Do these products require drilling?
The Gardenova and Povtulu descriptions specify no-drill installation. The ARTOSHIN uses built-in spring tension. Follow each product’s instructions and confirm that its installation method suits your window.
How do I know which size to buy?
Measure the opening where the product will sit, then compare it with the product’s stated range. The Gardenova fits a listed width of 32.5–62.5 inches, the Povtulu adjusts from 17–50 inches, and each ARTOSHIN bar adjusts from about 19.6–35.4 inches.
Can the Povtulu bar be used on a window?
The product description lists both sliding doors and windows. However, window designs vary, so check that the bar can be positioned securely in your specific opening before using it.
Can I use a tension bar as my only security measure?
Don’t assume a removable, pressure-held bar provides the same protection as a permanently installed security device. Use it as intended, check its placement, and consider other security measures appropriate for your home.
Can window bars block an emergency exit?
They can affect access through a window. Before installing a guard or bar, make sure it does not prevent the window from serving as a required emergency exit, and check local rules and product instructions.
Final Recommendation
For a wide interior guard aimed at child safety, the Gardenova is the clearest match, provided your window fits its range and supports counterforce installation. Choose the Povtulu for a removable bar with a wider adjustment span, or the ARTOSHIN set when you need several bars for narrower compatible openings. In every case, verify the fit and keep emergency access in mind.
