Renters Guide
Window Security Bars for Apartments
What renters need to know before buying window bars — lease considerations, no-drill options, and landlord negotiations.
Updated: May 2026 · Marcus Reid · IDA Certified Security Consultant
Quick Answer
Renters have three real options for window bars: (1) no-drill tension bars — no permission needed, but low security; (2) landlord permission + SWB Model A frame-mount — 3/16" holes, easily patched, most landlords say yes; (3) negotiate: offer to pay and restore on move-out. Ground-floor renters should prioritize this — you are 3× more likely to be burglarized than upper-floor units.
Can Renters Install Window Security Bars?
Renter Risk
Renters lose an average of $2,100 in property per burglary — and renters insurance typically covers only a fraction. Security deposits are $500–$3,000. The math is simple: the cost of filling 4 small holes is a fraction of one burglary loss.
Apartment renters are 85% more likely to experience burglary than homeowners — in part because property managers prioritize aesthetics over security, and in part because renters assume they can't install protective hardware without risking their deposit. That assumption leaves ground-floor and accessible apartment windows as soft targets. You have more options than you think.
The short answer is: it depends on your lease. Most residential leases have a clause prohibiting permanent modifications without written landlord consent. Window bars that require drilling fall into this category.
However, this doesn't mean you have no options. Three approaches work for renters:
Option 01
No-Drill Tension Bars
Spring-tension bars wedge inside the window opening without any drilling. They leave no holes, so most leases allow them without approval. The tradeoff: lower security rating (typically 100–200 lbs lateral resistance vs. 500+ for bolted systems). Useful as a deterrent on upper-floor windows.
Option 02
Get Landlord Permission
Many landlords will approve SWB bars if you explain:
The bars increase property security (reduces landlord liability)
The mounting holes are small (3/16") and easily filled with spackle on move-out
You'll pay for any restoration required
PRO TIP
Get permission in writing. Frame it as a property improvement, not a personal modification.
Option 03
Frame-Mount Only (No Wall Holes)
SWB Model A can be mounted directly to the window frame without touching the walls. Frame mounting uses the existing window frame as the anchor — typically 4 small screws into wood or vinyl. Many leases permit this since it affects the window frame, not the wall. Verify with your landlord.
Ground-Floor Apartment Security
Ground-floor apartments are 3× more likely to be burglarized than upper-floor units. Window bars on ground-floor windows are the single most effective deterrent available to renters.
If your landlord won't approve bars, escalate by:
Referencing local burglary statistics for your neighborhood
Offering to share the cost with the landlord
Pointing out that increased security reduces the landlord's insurance risk
Checking local tenant rights laws — some cities require landlords to provide window security in high-crime areas
NYC-Specific Requirements
NYC LAW
New York City has unique laws around window bars in apartments. NYC Multiple Dwelling Law requires that any window bars in rooms occupied by children under 10 must have quick-release mechanisms to prevent child falls. Landlords in NYC may be required to install window guards in applicable units.