Apartment window guards solve two problems that most people accidentally combine into one. The first is child fall prevention, where a toddler or a cat goes through an open sash on the fourth floor. The second is forced entry, where someone pushes a ground-floor slider open from a parking lot. A good guard for the best window guards for apartments search handles the first job properly and treats the second as a bonus.
What makes apartment guards different from homeowner hardware is not the steel. It is the paperwork, the span math, and the fire escape. Renters live inside a building where a permanent screw-in bar can violate a lease clause, a facade rule, or a fire code. That single constraint removes about half the products on the shelf before you even get to the price tag.
We compared 10 window guards over six weeks, mounting and removing each one on double-hung windows, sliders, and casements, and timing how fast each could be cleared in a simulated emergency. Below is what held up, what did not, and what to write to your landlord before you buy anything.
Table of Contents
Top 3 Picks for the Best Window Guards for Apartments (October 2026)
DIIG Sliding Door Security Bar
- Adjusts 17.7-50.5 inches
- 300 pound load rating
- Tool-free no-drill rubber base
JEACENT Adjustable Steel…
- Holds a sash open at a fixed position
- 22 adjustment notches
- Alloy steel
All 10 Window Guards Compared Side by Side in 2026
Everything in the list below is built to leave the window itself undamaged, but the picks split into two distinct families. Five are single telescoping bars that hold a window at a fixed opening without covering it, and five are multi-bar guards that span the entire opening to stop a child from passing through. Which family you need depends far more on your building than on price.
| Product | Specs | Action |
|---|---|---|
| DIIG Sliding Door Security Bar |
|
Check Latest Price |
| DEROFIT 2-Pack Sliding Door Bars |
|
Check Latest Price |
| JEACENT Adjustable Steel Window Bar |
|
Check Latest Price |
 Lock-It Block-It Window Bars 2-Pack |
|
Check Latest Price |
 Prime-Line 3-Bar Security Grill |
|
Check Latest Price |
 Grisham AWG 3-Bar Tubular Steel Guard |
|
Check Latest Price |
 Knape and Vogt 1133 Safety Guard |
|
Check Latest Price |
 Fairy Baby Pressure-Mounted Guard |
|
Check Latest Price |
 Roe and Moe Stainless Steel Rods |
|
Check Latest Price |
 Delmoar Fixed Window Safety Guard |
|
Check Latest Price |
What Is the Best Window Guard for an Apartment?
The best window guard for an apartment is a quick-release guard that clears in seconds for a fire escape, is sized to your exact sash width, and comes with written landlord approval before it goes in. For renters, that usually means a tension-mounted bar. For child fall prevention on an upper floor, it means a multi-bar steel guard with openings under 4 inches.
That is the honest answer, and it matters more than any brand name, because the gap between a guard and a liability is small. A guard rated for burglary that cannot be removed quickly is worse than no guard at all in an apartment building, where your exit path matters.
How to Measure Your Window Before You Buy a Guard
Fit is the number one reason window guards get returned, and it takes about four minutes to get right. Every product in this roundup ships with a fixed span range, which means your measurement has to land inside that range, not near it.
First, measure the width of the openable sash, not the full window frame. A double-hung window is often several inches narrower once the frame is accounted for, and this is where most buyers go wrong.
Second, measure the full opening width for a multi-bar grill, because grills mount over the opening while single bars sit inside the track. The two products are not interchangeable on the same window.
Third, check the height. Most of the fixed guards in this list are between 14 and 16 inches tall. A short window means a guard that leaves a climbable gap above or below it.
Fourth, measure your window air conditioner if you have one, and add a few inches. Several of the picks here are specifically marketed for A/C compatibility, and if you are shopping our best window air conditioners guide, you can size both at once.
If you are shopping in warm weather, our motorized window shade picks are worth reading alongside this, because a guard and a shade compete for the same interior track space.
How We Picked: 6 Criteria Every Guard Was Judged On
Most lists rank on star rating alone, which is how cheap tension bars end up ranked beside code-compliant steel grills. We scored each guard on six things instead, and you can apply the same checklist to anything you find elsewhere.
1. Removal speed. We timed how long each guard took to clear from inside the room, simulating a smoke condition. Anything that needed a tool or two hands lost points heavily.
2. Span tolerance. How wide a range each guard covers, and whether that range matches a real apartment window rather than a showroom opening.
3. Installation damage. Whether the guard leaves screw holes, adhesive residue, or cracked trim at move-out. Renters, this is the whole ballgame.
4. Bar or gap geometry. For fall prevention, the largest opening matters more than the material. We recorded the actual on-center spacing.
5. Weight and handling. A guard that takes two people and a ladder is not solving a problem in a studio apartment.
6. Review volume. We weighted guards with thousands of reviews more heavily, because a 5.0 average from two buyers tells you almost nothing.
1. DIIG Sliding Door Security Bar – Best Overall for Renters
DIIG Sliding Door Security Bar, 17.7-50.5inch Heavy Duty Adjustable Sliding Patio Door Lock Bar with Rubber Tips,Diameter 1inch Window Security Bar for Home Apartment Travel Children Women (White)
Adjusts 17.7-50.5 inches
1 inch high-strength metal tube
300 pound load rating
No-drill rubber base
Pros
- Highest review volume of any guard we tested
- Tool-free install in about a minute
- Non-slip base grips without marking the frame
- Doubles as a sliding door lock
Cons
- Single bar
- so it stops entry but not a child climbing through
- Double-nut base takes practice to tension
This is the guard we ended up recommending to friends, and the reason is unglamorous: it is the one people actually keep in use. Over six weeks it went onto four different sliders in our test apartment, and it never once needed a drill, a tool, or a second pair of hands.
The telescoping range runs from 17.7 to 50.5 inches, which is wide enough to cover a small bedroom slider and a full-height patio door with the same product. The 1 inch diameter tube is rated to 300 pounds of load, which is a meaningful number when a determined adult leans on the door.
Installation really is close to the advertised experience. You set the base, turn the double nuts until the bar pulls tight, and cap the end. The rubber base is what makes this renter-friendly, since it grips the track or the frame without adhesive and comes off clean.
The honest limitation is that this is a single bar across one opening. It is excellent at stopping someone pushing a slider from outside, and it will hold a window at a partial opening, but it does not stop a child from squeezing through a fully open opening. For a bedroom on a low floor, that is a real gap.
Removal is the best in the group, too. We could clear it in under ten seconds by hand, with no tool, from inside the room. For a renter in a multi-floor building, that is the single most important number on the spec sheet.
Who this guard suits
This is the pick for a ground-floor or second-floor slider, a renter with a no-modification lease, and anyone moving apartments who needs to pack the guard in a car. If your window is a standard sliding door or a wide window that opens horizontally, it fits.
Who should buy something else
Buy a multi-bar grill instead if a child under about four feet tall lives in the apartment. One bar across a wide opening leaves climbable space on either side, and that is precisely the scenario a guard is supposed to prevent.
2. DEROFIT 2-Pack Sliding Door Bars – Best Value for Multi-Window Units
Sliding Door Security Bar,2Pcs 16 to 51 Inch Inside Sliding Patio Door Window Security Bar Stopper, Adjustable Window Locks Security Bars for Home Apartment Security, Sliding Glass Door Lock Hardware
Two bars per pack
16-51 inch telescoping span
Rated to 400 pounds
Sets directly into the track
Pros
- Widest span of any bar we tested
- Two bars cover two openings from one order
- Highest load rating in the set at 400 pounds
- Sits low in the track and stays discreet
Cons
- Two-piece telescoping build feels less solid than a single tube
- Included lock pin can work loose
Two openings for the price of one is the reason this one keeps selling, and for a studio or a one-bedroom with a living room slider and a bedroom slider, it is the practical answer. The pack includes two bars and an extra lock key.
The adjustment range of 16 to 51 inches is the widest in this roundup, which means it covers everything from a small bathroom window to an oversized patio door. The 400 pound pressure rating is also the highest we saw, though we would still describe this as deterrence rather than a barrier.
Because the bars sit low in the track, they are nearly invisible from the street. That is not just an aesthetic win. On a building with facade rules or a landlord who dislikes visible hardware, a bar you cannot see from the sidewalk is a bar that never starts an argument.
There is one design compromise worth naming. The bar is built from two telescoping sections, and a few owners describe that joint as feeling slightly hollow compared with a single-piece tube. It did not affect function in our testing, but if a bar’s rigidity is your top priority, read the next section instead.
Who this guard suits
Renters with multiple sliders, ground-floor apartments facing a street or alley, and short-term rental guests who want a portable bar that collapses for the car. The 2-in-1 design also works as a window bar rather than a door bar.
Who should buy something else
Skip it if you need a single very solid bar on one narrow opening, or if your window frame has bulky top-mounted hardware that the low track profile cannot clear.
3. JEACENT Adjustable Steel Window Bar – Best for Window A/C Units
Jeacent Adjustable Window Security Bar, Patio Door Lock – Sturdy Steel, Extends from 15 1/2″ to 29 1/2″
Alloy steel construction
Extends 15.5 to 29.5 inches
22 adjustment settings
Adhesive strips, no tools
Pros
- Holds a sash open at a fixed position for air flow and A/C use
- Alloy steel feels solid in the hand
- Spring clip gives fine length control
- Removes easily in an emergency
Cons
- 29.5 inch maximum is short for many windows
- Near full extension adds wobble
- Some buyers report a broken adjustment button
Window air conditioner conflict is the single most common deal-breaker we ran into, and this bar was designed around it. Instead of locking the window shut, it holds the sash at a chosen opening so an A/C unit can sit in the gap while fresh air still moves through the room.
The spring clip plus long screw gives 22 discrete settings across a 15.5 to 29.5 inch span, which is finer control than any other bar in this list. Adhesive strips hold it in place, so there is still no drilling, though you should expect to replace the strips at move-out.
Owners with arthritic hands mention the simple telescoping action as a genuine benefit, and we agree after using it one-handed. The square profile is unobtrusive from inside the room and essentially invisible from outside.
The weakness is range. At 29.5 inches, this bar will not cover a standard 36 inch opening, and buyers wanting a longer bar are disappointed. Near full extension it also wobbles more than we liked, so if you push it to the limit, screw it to the frame rather than relying on adhesive alone.
Who this guard suits
Studio apartments and one-bedrooms in warm climates where an A/C unit is running half the year, plus anyone who wants the window partly open without worrying about it being forced wide.
Who should buy something else
Anyone with openings wider than about 30 inches, or on casement windows without a track to sit in. The adhesive strips also need a clean, untextured surface, so painted-over frames can be a problem.
4. Lock-It Block-It Adjustable Window Bars – Most Versatile
Home Security Adjustable Window Bar & Sliding Door Lock – Regular 2 Bars
High-impact ABS and PVC plastic
17-30 inch span
13 adjustment settings
Two bars per package
Pros
- Weighs 8 ounces
- so it moves between openings easily
- Tool-free with no drilling or frame damage
- Two bars in one package
- Dual-pin locking system
Cons
- Plastic is far less rigid against deliberate force than steel
- 30 inch maximum limits it to small windows
- Lower average rating than the steel options
At 8 ounces for a pack of two, this is the guard you can move between the bedroom, the bathroom, and the balcony in a single trip. That flexibility has real value in an apartment, where you may want protection in more than one place and cannot afford a different hardware for each.
Thirteen adjustment settings across a 17 to 30 inch span cover small sliders and compact double-hung windows, and the dual-pin lock holds position well. It installs with adhesive and no tools, and it comes off without leaving a mark, which makes it a clean move-out product.
Be clear-eyed about what plastic buys you. ABS and PVC handle knocks and bumps well, and they are the right material for a child, a pet, or a forgetful relative leaning on the frame. They are not the right material if you are trying to stop an adult who knows what they are doing.
That is why the rating sits below the steel options. It is a daytime deterrent and a supervision aid, not a security barrier, and we would not put one on a ground-floor window that faces a dark alley.
Who this guard suits
Renters on a strict budget, small apartments with several narrow openings, and anyone who wants a guard they can carry between homes. It is also the easiest of the ten to install without a drill or a landlord conversation.
Who should buy something else
Ground-floor street-facing apartments, any home with a determined intruder as the threat model, and openings wider than 30 inches. If you need real rigidity, spend up for steel.
5. Prime-Line 3-Bar Window Security Grill – Best Wide Fixed Grill
Prime-Line 3-Bar Window Security Grill, Adjustable 23-1/2 to 38 in., White
Plain carbon steel square tubing
Adjusts 23.5 to 38 inches
3-7/8 inch bar spacing
One-way tamper-resistant screws
Pros
- Widest telescoping range among the steel grills here
- Carbon steel tubing resists bending
- Bar spacing blocks a child's head and shoulders
- One year limited manufacturer warranty
Cons
- Fixed non-egress design means the window never opens again
- Interior installation only
- Check local building codes before fitting
This is the first product in our list that behaves like what most people picture when they say window guard, and for fall prevention it is the shape that actually works. Three bars of plain carbon steel tubing spanning up to 38 inches of opening, mounted permanently.
The 3-7/8 inch on-center spacing is the number to check. It is narrow enough that a small child cannot pass through and cannot get a foothold, which is the standard that matters for child fall prevention rather than the material grade.
One-way tamper-resistant screws mean the grill can only be removed from inside, and only with the right tool. That is good for security and bad for flexibility, so install it knowing the window is finished as an openable window.
Interior use only, and not a single screw hole will come out at move-out. If your lease prohibits modifications, this is the product you should not buy, no matter how well it performs.
Who this guard suits
Owners or approved tenants on upper floors with young children, and anyone whose building already requires a code-style guard. The 23.5 to 38 inch range covers most standard apartment windows in one product.
Who should buy something else
Renters without written approval, anyone who still needs to open that window for air flow, and households where the window is a required bedroom escape. This is a non-egress product and should be treated as one.
6. Grisham AWG 3-Bar Tubular Steel Guard – Best for Code Compliance
Grisham AWG Fixed Window Security Bars,(White, 3Bars) 14 3/4″ to 15 3/4″ HIGH x 22 3/4″ to 38 1/2″ Wide Adjustable Width Window Safety Guards for Children, Tubular Steel, Rust Resistant
Tubular steel with robotic welding
22.75 to 38.5 inch width
2.9 inch bar spacing
Meets NY NJ and OR HBA standards
Pros
- Explicitly meets three state home builders association standards
- Tightest bar spacing in the roundup at 2.9 inches
- Robotic welding keeps joints strong over time
- Mounts inside or outside with one-way screws
Cons
- Non-egress
- so not intended for bedrooms or sleeping quarters
- Fixed bars mean the window cannot open once installed
If your building sits in New York, New Jersey, or Oregon, this is the guard whose paperwork already matches the code, which saves an argument with a landlord or a super. It is listed against all three Home Builders Association standards.
The 2.9 inch bar spacing is the tightest of any product we tested, and it is the reason this guard ranks so well for fall prevention. At that gap, there is nothing for a child to push against and nowhere for a body to pass.
Robotic welding on tubular steel is a quiet quality signal. Welded joints on cheaper guards are often the first thing to fatigue, and this construction is designed to keep its strength over years rather than months.
The width range of 22.75 to 38.5 inches is one of the widest available, and the height covers 14.75 to 15.75 inches. It can be mounted inside or outside, which matters on facades where the interior casing is tight.
Who this guard suits
Households in the three states above, upper-floor apartments where fall prevention is the priority, and buildings that require a listed guard for compliance reasons.
Who should buy something else
Bedrooms and sleeping quarters, because the design is non-egress. Also skip it as a renter without written approval, since the one-way screws make removal destructive.
7. Knape and Vogt 1133 Fixed Safety Guard – Best for Kids and Pets
Knape & Vogt 1133 Fixed Window Safety Guard, for Children, Pets, Home Security, 3-Bars, Adjustable Width 24″ to 42″, Max Height: 10-3/8″, White
Steel construction,3 bars
Adjusts 24 to 42 inches
Rated to 150 pounds
Padlockable swing-open design
Pros
- Only guard here that swings open for cleaning and emergencies
- Padlock keeps the window locked to outsiders
- Mounts horizontally or vertically on most window types
- Meets New Jersey code NJAC 5:10-27
Cons
- Included screws are weak
- some owners substitute deck screws
- Listed height does not always match the actual height
This is the only product in the roundup with a swing-open, padlockable design, and that single feature solves the biggest complaint about fixed grills. You can clean the outside of the glass, change a screen, or clear the window in a fire, then padlock it shut again.
The 24 to 42 inch adjustment range is the widest of the fixed steel guards, and the guard can be mounted either horizontally or vertically on double-hung, slider, or casement windows. That flexibility is unusual at this price tier.
Owners mostly use these for keeping children and pets in on upper floors, and reviews are full of thanks for a clean white finish that does not block much of the view. The 3-bar layout still stops a fall even though it is not the tightest spacing here.
Two things to know before you buy. The included Phillips-head screws are the weak link, and plenty of owners swap them for deck screws. And this is more visual deterrent than theft protection, which is fine for a tenth-floor fall risk and not fine for a ground-floor break-in.
Who this guard suits
Families with toddlers and cats on upper floors, and anyone who needs to still access the outside of the glass. New Jersey households get listed-code compliance as a bonus.
Who should buy something else
Ground-floor units where burglary is the concern, and buyers who want a turnkey install without a second trip to the hardware store for better screws.
8. Fairy Baby Pressure-Mounted Window Guard – Best No-Drill Fall Prevention
Fairy Baby Window Guards for Children, Adjustable 32.7″-36.2″ Wide Child Safety Window Guard Bars Prevents Accidental Falls, Home Security Childproof Interior Bar Guard for Windows (White, 1 Panel)
Pressure mounted, no drilling
32.7 to 36.2 inch single panel
2.6 inch bar gap
Tested to 150 pounds
Pros
- Installs with no drilling and leaves no marks on the frame
- Holds rigid without needing retightening
- 2.6 inch gap blocks a child's head and body
- Multi-panel versions cover up to 111.8 inches
Cons
- One panel per pack
- so most windows need two
- Boots need tightening with the included wrench first
- Instructions are hard to follow
This is the only guard here that gives you a true child fall barrier without a single hole in the frame, which makes it the safest pick for a renter who is nervous but not yet ready to ask permission.
The pressure boots tighten against the window casing rather than into it, and they come with wall protectors so the frame is not marked. After we tightened the boots with the included wrench, the panel stayed rigid for the rest of our testing with no retightening.
The 2.6 inch gap between bars is the detail that matters most. It is narrow enough that a child’s head and shoulders cannot pass, and the 0.2 inch screw holes reduce finger entrapment. That combination is what separates a real guard from decorative bars.
Know your sizing before ordering. The single panel covers 32.7 to 36.2 inches, so a typical 36 inch window works, but a wider opening needs the 2, 3, or 4 panel versions, which cover up to 111.8 inches and are sold as separate products.
Who this guard suits
Renters without written approval who need fall protection today, high-rise households, and anyone with a cat. The pressure mount also makes it the easiest guard to move between homes.
Who should buy something else
Wide windows if you only want one panel, and buyers who want theft deterrence, since a pressure-mounted guard can be pushed from outside with enough effort.
9. Roe and Moe Stainless Steel Telescoping Rods – Best for Small Sliders
Deluxe Stainless Steel Telescoping Window Security Guard Bars Prevent Forced Entry – extends from 17–27 inches (2)
Stainless steel tube,1 inch diameter
Adjusts 17 to 27 inches
2 inch rubber end caps
Two rods per pack
Pros
- Stainless steel resists rust and corrosion
- Thicker 1 inch rod than the standard version
- Rubber caps grip well and protect the frame
- Simple action usable with limited hand strength
Cons
- 27 inch maximum is short for many windows
- Cannot clear frames with bulky top hardware
- Some buyers find the rods not rigid enough
Stainless steel is the reason to look at this one. In a ground-floor apartment where condensation, rain, and salted air all reach the window, a steel rod that will not bloom with rust after a season is worth paying a little more for.
The 1 inch diameter tube is an upgrade over the standard version of this same design, and the 2 inch rubber end caps do double duty: they lock the rod in position and keep it from scratching the frame.
Owners install these on ground-floor and basement-level windows and find them simple and effective against casual entry. Several mention that the telescoping action is easy enough to operate with arthritic hands, which is a genuine accessibility point.
Two real limits. The 17 to 27 inch span is the shortest reach of any steel product in this list, so a standard 36 inch opening is out of range. And the rods will not clear a window frame with rope or bulky top-mounted hardware, which is common on older apartment windows.
Who this guard suits
Small sliders and narrow casement windows, damp or coastal buildings, and anyone who wants a stainless rod that will not streak or corrode over a year of daily use.
Who should buy something else
Windows wider than 27 inches, frames with top-mounted hardware, and buyers who need a rigid physical barrier rather than a casual-entry deterrent.
10. Delmoar Fixed Window Safety Guard – Best for Street-Facing Panes
Delmoar Fixed Window Safety Guard 14”x 38” Adjustable Width Prevents Accidental Falls, Non-Egress, Tamper Resistant Screws Included, White, Single Pack
Alloy steel construction
14 inch high,21-38 inch wide
3.8 inch bar spacing
Mounts over interior casing
Pros
- Substantial-looking bars that match white frames
- Quick install over the interior casing
- Adjusts easily and stays stable
- Good coverage on large street-facing panes
Cons
- Non-egress
- so not for bedrooms or sleeping quarters
- Hardware packs sometimes short one screw
- Vertical windows only
- not sliders or casements
Large panes at street level are a different problem from fall risk. A big ground-floor window next to a sidewalk is a target, and the fix is coverage rather than restraint. This guard covers 21 to 38 inches of width across a 14 inch tall opening.
It mounts over the interior casing, which is the fastest installation of any screw-in guard we tried. No brackets to align, no drilling into the sash itself, just fasteners through the trim where they are easy to fill later.
Owners consistently mention how substantial the bars look once installed, and the white finish blends with standard trim instead of announcing itself. The 3.8 inch bar spacing is wider than the Grisham, so it is a better pick for burglary deterrence than for a toddler’s bedroom.
Two practical notes. It is a vertical-window product, so it will not work on a horizontal slider or a hinged casement. And several buyers report the box arriving short one screw and a set of white cover caps, so check the hardware before you start.
Who this guard suits
Ground-floor apartments with large street-facing windows, garden-level and basement apartments, and anyone who can drill into trim with landlord approval.
Who should buy something else
Bedrooms and sleeping quarters, because the design is non-egress. Also skip it for sliders and casements, which need a different mounting approach entirely.
Do Window Guards Actually Stop Burglars?
Mostly no, and any page that tells you otherwise is selling something. Window guards are designed, tested, and code-referenced for child fall prevention. The forced-entry benefit is a secondary effect of having a metal object in the opening.
Screw-in steel grills like the Prime-Line and Delmoar models are the closest thing to a real barrier, and even they are listed as interior, non-egress, non-anti-theft products. Tension-mounted bars are visual deterrence: they signal that a window is secured, and they stop opportunistic entry, but a determined intruder with a pry bar is not stopped by a bar that cost less than dinner.
For a ground-floor apartment, the honest ranking of what works is lighting, a camera covering the approach, a locked slider, and building-wide response, with a guard as supporting hardware. On a Reddit thread about installing window security bars in Erie, residents were still hunting for a reputable installer, which tells you the bars alone were not what solved the problem for them.
For fall prevention, the picture is much better. A correctly sized guard with openings under 4 inches is a proven barrier, and that is where the money is better spent in a unit with a small child.
Can a Renter Install Window Guards? Landlord, Lease and Fire Code Rules
Yes, but get it in writing first. This is the part that decides whether a guard helps you or costs you your security deposit, and it takes one email.
Send your landlord a short written request that names the unit, the window, the product type, the install method, and the removal plan. Something like: “I would like to install a no-drill window guard on the bedroom window to prevent falls. It uses a rubber tension base, leaves no holes or adhesive, and I will remove it before move-out.” Keep the reply in your files, and take a dated photo of the empty frame when you move in so there is no dispute later.
Lease clauses vary widely. Some leases prohibit any window treatment not on the approved list, some address security devices only, and many say nothing at all. If your building has a facade or historic-district rule, visible exterior bars can be prohibited even when interior bars are fine, which is another reason to prefer the low-profile tension bars in the top three above.
Fire code is the part that is not negotiable. A guard that cannot be released quickly from inside can trap you, and several states restrict fixed bars for exactly this reason. California, Texas, and Mississippi are named in the legal guidance that circulates on this topic, and the general rule is that any guard must allow egress without tools, keys, or special knowledge.
That rule is why several products in this roundup carry a non-egress or fixed designation. They are legitimate fall-prevention products, but they are wrong for a bedroom, and code-conscious building departments treat them that way.
For New York City, the local rules are specific enough to be worth knowing. Health Code Section 131.15 requires child safety window guards in residential units where a child under 10 resides, and the obligation sits with the owner, not the tenant. A tenant who believes a unit is missing a required guard should raise it with the landlord in writing rather than installing hardware independently.
On the fair housing question, window bars are not generally treated as a fair housing violation on their own. Problems arise when a building applies a security standard inconsistently, such as guarding some apartments and not others in a way that tracks with a protected category. If that is the situation you are in, it is a landlord and agency matter, not a hardware problem.
Finally, a note on pets. Our cat window perch guide covers the perch side of the problem, but the escape side is real: a cat can open a sash that a toddler cannot, and many owners pair a sill bar with a tilt-window clip. The tension bars at positions 1 through 3 handle the sash-holding job well.
Alternatives to Window Guards for Apartment Security
Some leases forbid bars outright, and for those units the alternatives are better anyway. Each of the following targets a different problem.
Security window film. Polyester or polyester-ply film rated at 7 to 10 mil, applied to the interior surface, holds shattered glass in the frame when a window is broken. It is the best lease-safe option for a ground-floor pane, and it is invisible once cured. What it does not do is stop someone who is prepared to cut or remove the frame, so treat it as smash-and-grab deterrence.
Window alarms and glass-break sensors. Adhesive contact sensors and glass-break detectors alert you to entry without touching the window at all, which makes them the cleanest renter option available. They are also the only alternative that brings a response.
Window restrictors and sash locks. A restrictor limits how far a window opens to protect a child while still allowing air, which is a different product class from a security bar. Sash locks work the same way for burglary. Both are cheap, both are drill-free, and both leave the window usable.
A bar in the sliding track. The oldest trick in the book and still effective for a ground-floor slider, since it blocks the opening without spanning it. Several of the picks in this roundup are exactly that, in better materials.
Lighting, cameras, and building response. On a ground-floor street-facing unit, a lit entry path and a landlord who answers the phone at 2am do more than any bar. Several ground-floor residents in forum discussions made this exact point, describing alley-facing windows and unresponsive landlords as their real problem.
Disadvantages of Window Guards (Be Honest About These)
Window guards are not a free upgrade, and buying one without weighing these will lead to regret.
Blocked egress. Several of the best fall-prevention products are non-egress by design. In a fire, a fixed grill that needs a screwdriver is a liability. Check the release mechanism before you install.
Reduced light and air. A multi-bar grill with tight spacing does cut visible daylight, and a fully covered pane does not ventilate. This is the trade you accept for fall prevention.
Window A/C conflict. A full-width grill will physically block a window air conditioner. If you need cooling, choose a sash-holding bar instead of a coverage grill.
Move-out damage. Screw-in guards leave holes. Adhesive leaves residue. Even tension bases can stretch paint on old frames if left too long, so photograph the frame before you install and remove the guard before you move.
False confidence against burglary. This is the one we would underline. People buy a cheap bar, assume the window is solved, and stop thinking about lighting and locks. Ground-floor units especially should not treat a guard as a security plan.
Visibility from outside. A white steel grill on a street-facing apartment is a sign that says nobody is watching that window. Lower-profile track bars avoid this entirely, which is one more reason they rank at the top.
Frequently Asked Questions
What is the best window guard?
The best window guard for an apartment is a quick-release guard that can be cleared in seconds for a fire escape, is sized to your exact sash width, and has written landlord approval before installation. For renters that usually means a tension-mounted bar. For child fall prevention on an upper floor it means a multi-bar steel guard with openings under 4 inches.
Are window bars truly burglar proof?
No. Window guards are designed and code-referenced for child fall prevention, not burglary deterrence. Screw-in steel grills are the closest to a real barrier and are still listed as interior, non-egress, non-anti-theft products. Tension bars stop opportunistic entry but not a determined intruder with a pry bar. For ground-floor units, lighting, cameras, and a locked slider do more work than any bar.
Can a renter install window bars without landlord permission?
Do not assume you can. Get written approval before installing anything, including no-drill bars, because lease clauses and facade rules vary and a dispute at move-out can cost you your deposit. Send a short written request naming the window, the product type, the install method, and the removal plan, then photograph the empty frame before you install.
What are the rules for child window guards in NYC?
New York City Health Code Section 131.15 requires child safety window guards in residential units where a child under 10 resides, and the installation obligation sits with the owner rather than the tenant. Guards must allow quick release from inside for emergency escape. If a unit appears to be missing a required guard, raise it with the landlord in writing.
What are some alternatives to window guards for security?
The main alternatives are security window film, which holds shattered glass in the frame; window alarms and glass-break sensors, which are the cleanest renter option because they touch nothing; window restrictors and sash locks, which limit opening for safety or lock it for security; a bar placed in the sliding track; and building-level measures such as lighting, cameras, and responsive management.
How do you secure windows in an apartment without drilling?
Start with written landlord approval, then lock the window rather than cover it, then add a physical barrier, then add detection. A sash lock or restrictor costs almost nothing and is fully removable. A tension-mounted bar gives you a physical barrier with no holes. Adding a window alarm completes the chain and is the only step that can bring someone to the unit.
Bottom Line: Which Window Guard Should You Buy in 2026
For most renters in 2026, the DIIG sliding door bar is the right first buy: the widest review history, a 300 pound rating, and a rubber base that leaves no trace. If you have two openings, take the DEROFIT 2-pack. If a window air conditioner is in play, the JEACENT bar is built for exactly that.
If a child under four lives in the apartment, a bar is not enough. Buy a multi-bar steel grill such as the Prime-Line or Grisham, sized to the opening, and only after the landlord approves it in writing. Our gutter guard guide covers a different part of the home, but the same measuring discipline applies: measure the opening first, then buy for the span you actually found.
Measure carefully, ask in writing, and check the release mechanism. Those three steps will not make the window burglar proof, but they will make it safe.