Security Bars for Sliding Glass Doors and Windows: The Complete American Homeowner’s Guide
Discover how security bars for sliding glass doors and windows protect your home. Compare options, installation tips, and egress compliance for US homeowners.
SWB: High-caliber Security Window Bars experts. We bring the most advanced protection within your reach, explained clearly. If your home has sliding glass doors or adjacent floor-level windows, you already know what every experienced burglar knows — those entry points are the easiest targets in any American home. According to the FBI’s Uniform Crime Reporting Program, approximately 6.7 million burglaries occur across the United States every year, and nearly 60% of all forced entries happen through ground-floor openings. Sliding glass doors and the windows that flank them represent the widest, most accessible, and often the least-reinforced glass surfaces in any residence. Security bars for sliding glass doors and windows close this vulnerability gap with a physical deterrent that no alarm system, camera, or smart lock can replicate on its own. In this guide, SWB walks American homeowners, renters, and landlords through everything they need to know — from understanding why sliding glass doors are uniquely vulnerable to choosing the right bar system, comparing installation methods, meeting fire egress requirements, and getting real protection without spending thousands of dollars.
Standard sliding glass door locks operate on a simple latch-and-catch system mounted to the door frame. While manufacturers have improved these over the years,…
Why Sliding Glass Doors and Adjacent Windows Are America’s Most Targeted Entry Points
Professional burglars do not guess — they study patterns. Sliding glass doors account for a disproportionate share of forced entries in American homes because they combine three factors that make a burglar’s job easy: large glass surface area, track-based locking mechanisms that can be lifted or pried, and often poor visibility from the street. According to the U.S. Department of Justice’s National Crime Victimization Survey, residential burglaries peak between 10 a.m. and 3 p.m. on weekdays — when families are at work or school — and ground-floor sliding glass doors are prime daytime targets. In cities like Los Angeles, Houston, and Atlanta, where single-story homes and apartment complexes with patio access are common, this vulnerability is especially acute. The sliding mechanism itself is the first weak point. Most factory-installed sliding door locks are simple latches that can be defeated in seconds with a flathead screwdriver or by lifting the door off its track. The adjacent windows — typically large, double-pane panels that sit at or near floor level — share this exposure. Together, a sliding door and its flanking windows can span eight to twelve feet of glass with nothing but a thin aluminum frame standing between your family and an intruder. Adding security bars for sliding glass doors and windows transforms that entire span into a reinforced barrier that requires significant time, noise, and effort to breach — three things that deter 90% of opportunistic break-ins before they start.
The Track Vulnerability: How Burglars Bypass Sliding Door Locks
Standard sliding glass door locks operate on a simple latch-and-catch system mounted to the door frame. While manufacturers have improved these over the years, the fundamental weakness is structural: the door rides in a track, and most residential doors can be lifted upward — sometimes just an inch or two — and pulled free of the track entirely, bypassing the latch completely. This technique requires no tools and takes under ten seconds for someone who knows what they are doing. A secondary vulnerability exists in the track itself — debris, worn rollers, and loose frames mean that over time, even locked doors develop play in the track that can be exploited with minimal force. Security bars inserted into or across the track eliminate this attack vector entirely by preventing the door from sliding or being lifted. For maximum protection, a bar system that spans the full width of the door opening — from door edge to door frame — and a separate bar or grate system for adjacent windows creates an interlocking perimeter that closes every angle of approach.
Adjacent Window Panels: The Forgotten Vulnerability Next to Your Patio Door
Most homeowners who do invest in sliding door security forget entirely about the windows immediately beside the door. In typical patio configurations — especially in California ranch homes, Texas suburban housing, and Florida condominiums — floor-to-ceiling or waist-high windows flank the sliding door on one or both sides. These panels are often older, single-latched, and set in frames that have loosened over years of use. A burglar who encounters a bar-secured sliding door will immediately pivot to the adjacent window rather than move on. Security bars for sliding glass doors and windows must therefore be treated as a system — not as individual products for individual openings. Covering the door but leaving the adjacent windows unprotected is like locking the front door and leaving the side window wide open. SWB’s telescopic bar systems are specifically designed to address multiple adjacent openings with consistent, aesthetically matched protection across the entire back wall of a home.
Types of Security Bars for Sliding Glass Doors and Windows Compared
The American security hardware market offers several categories of bars and grates designed for sliding glass doors and windows. Understanding the differences between them — in terms of installation method, strength, adjustability, and code compliance — is essential before making a purchase decision. The primary categories are: track bars (also called door security bars or door pins), telescopic window bars, fixed wall-mount bars, and window security grates. Each serves a different function and is appropriate for different configurations. A sliding glass door primarily needs a track bar or a floor-to-door-handle bar that prevents the door from opening. Adjacent windows need either telescopic bars, wall-mount bars, or security grates depending on window size and whether permanent installation is acceptable. For most American renters and homeowners who want protection without property damage or high installation costs, telescopic adjustable bars represent the best balance of security strength, flexibility, and value. For commercial properties, retail storefronts with glass doors in cities like Chicago or Philadelphia, or ground-floor units in high-crime areas, fixed wall-mount systems or security grates offer the highest level of physical deterrence.
Track Bars and Door Pins for Sliding Glass Doors
A track bar — sometimes called a charley bar, door security bar, or patio door bar — is placed horizontally in the lower track of a sliding door to prevent it from being opened. These are inexpensive, simple, and effective at preventing the door from sliding. However, they do not address the lifting attack — a determined intruder can still attempt to lift the door off the track — nor do they cover adjacent windows. Door pins, which are metal pins inserted through the door frame at an angle, prevent lifting but require drilling into the door frame. For renters in apartments in New York City or Chicago, drilling into door frames may violate lease agreements, making non-drilling alternatives more appealing. Track bars are best used as a first layer of defense, always combined with a bar or grate system for adjacent window panels to create complete perimeter security.
Telescopic Window Bars: Adjustable Protection for Adjacent Windows
Telescopic window bars are spring-loaded or screw-adjustable steel bars that press against the interior of a window frame under tension, requiring no drilling, no permanent installation, and no damage to walls or frames. SWB’s Model A Telescopic Window Bars fit windows 22 to 36 inches wide — covering the standard window sizes found in the vast majority of American homes — and install in 15 to 20 minutes with basic household tools or no tools at all. For renters who need to remove their bars when moving out, this is the only practical solution that provides genuine steel-grade security without voiding a lease. Telescopic bars are ideal for the window panels adjacent to sliding glass doors, basement windows, and bedroom windows. Their matte black powder-coated finish matches most modern patio door frames, creating a visually consistent and professionally installed appearance across the entire opening. Learn more about SWB’s telescopic solution at the Model A product page.
Fixed Wall-Mount Bars and Security Grates for Maximum Strength
For homeowners, landlords, and commercial property owners who want the highest possible level of physical deterrence and are not concerned about permanent installation, fixed wall-mount security bars and window security grates provide welded-steel-equivalent strength. SWB’s Model B Wall-Mount Window Bars use heavy-gauge steel with a powder-coated black finish and are bolted directly into the surrounding masonry or wood framing, creating a bar system that cannot be removed without heavy tools. Security grates for windows — grid-pattern steel barriers that cover the entire window opening — are common in commercial applications and ground-floor retail spaces in cities like Detroit, Memphis, and Baltimore, where maximum deterrence is a priority. For residential applications adjacent to sliding glass doors, wall-mount bars offer the same strength with a cleaner residential aesthetic than commercial-style grates. The trade-off is installation time, the need for tools and anchors, and the permanent nature of the modification.
Fire Egress Compliance: What You Must Know Before Installing Bars on Sliding Door Adjacent Windows
This is the single most important safety consideration when installing security bars for sliding glass doors and windows in American homes — and it is one that most homeowners overlook entirely until they are in a dangerous situation. The International Building Code (IBC), the International Residential Code (IRC), and the National Fire Protection Association’s NFPA 101 Life Safety Code all require that sleeping room windows provide an emergency escape and rescue opening. Specifically, the IRC Section R310 mandates that egress windows in sleeping areas provide a minimum clear opening of 20 inches in width, 24 inches in height, and a net clear opening of 5.7 square feet, with the bottom of the opening no more than 44 inches above the finished floor. If you install a fixed security bar or grate system on a window adjacent to a sliding glass door that also serves as the emergency egress for a sleeping area — or if the bar system blocks the window from opening to its required egress dimensions — you are creating a life safety hazard that could trap occupants during a fire. OSHA workplace safety standards echo these requirements for commercial applications. In New York City, Local Law 57 mandates window guards on any window above the first floor in buildings where children under 10 reside, but explicitly requires that at least one window per room remain operable for egress. Understanding these requirements is not optional — it is the difference between a security upgrade that protects your family and one that endangers them.
The Model A/EXIT: Patented Quick-Release Egress Bars for Compliance
SWB’s Model A/EXIT Egress Compliant Window Bars are specifically engineered to address this exact compliance challenge. Featuring a patented quick-release mechanism, the Model A/EXIT allows any occupant inside the home — including children — to release the bar and fully open the window in an emergency, while maintaining full steel-bar security against external forced entry at all other times. The Model A/EXIT is compliant with the IBC, NFPA 101, OSHA standards, and meets IRC emergency egress requirements for the minimum 20-by-24-inch clear opening. For windows adjacent to sliding glass doors in bedrooms, basement sleeping areas, or any room that serves as a secondary egress path, the Model A/EXIT is not just the recommended solution — in many jurisdictions and applications, it is the legally required one. Installing standard fixed bars without egress capability on a sleeping room window can expose homeowners and landlords to liability in the event of a fire-related injury or death. Review the full compliance specifications at the Model A/EXIT product page.
How to Identify Egress-Required Windows in Your Home’s Sliding Door Configuration
Not every window adjacent to a sliding glass door requires egress capability, but many do. The key question is whether the window in question serves as the primary or secondary emergency exit for any sleeping area. In a typical single-story ranch home in Arizona or Texas, the sliding glass door itself may serve as the primary egress — in which case adjacent windows used purely for ventilation may not require a quick-release mechanism on their bars. However, in a two-story home where the sliding door opens to an elevated deck rather than ground level, or in a basement apartment where the ground-floor windows adjacent to a walk-out door are the only street-level egress for sleeping rooms, egress-compliant bars are mandatory. When in doubt, consult your local building department or reference IRC Section R310. SWB strongly recommends that any window in or adjacent to a sleeping area be equipped with either no bars, or egress-compliant bars that meet the full quick-release standard. Safety compliance should always precede security installation.
Installation Guide: Installing Security Bars on Sliding Glass Door Windows the Right Way
Proper installation is what separates effective security from a false sense of security. Security bars for sliding glass doors and windows that are improperly sized, inadequately tensioned, or mounted to weak framing can be defeated as easily as no bars at all. The good news is that with SWB’s telescopic and wall-mount systems, correct installation is straightforward for any homeowner or renter willing to follow the steps carefully. The most important installation considerations are: measuring correctly, ensuring the bar contacts the frame — not just the glass — at both ends, verifying that wall-mount anchors bite into structural framing rather than drywall alone, and testing the installed bar under lateral force before relying on it for security. SWB provides a comprehensive installation guide at securitywb.com/installation that covers all three models with step-by-step instructions, tool lists, and troubleshooting for common window frame types found across American housing stock — from wood-framed Craftsman homes in the Pacific Northwest to aluminum-framed stucco construction common throughout Florida and the Southwest.
Measuring Sliding Door Adjacent Windows for the Correct Bar Size
Accurate measurement is the foundation of effective bar installation. For telescopic bars like SWB’s Model A, measure the interior width of the window opening from the inner edge of the left frame to the inner edge of the right frame — not the glass width, and not the outer frame width. This interior dimension must fall within the bar’s adjustable range. SWB’s Model A covers 22 to 36 inches, which fits the majority of standard residential window sizes in American construction. For unusually wide windows adjacent to large patio doors — common in newer construction with panoramic glazing — measure each individual window panel separately, as a large opening may consist of multiple panels that each fall within the standard telescopic range. Always measure twice before ordering and check that the window frame is structurally sound enough to bear lateral pressure. Rotted wood frames, cracked aluminum extrusions, or loose vinyl frames need repair before bar installation for the system to provide reliable security.
No-Drill vs. Wall-Mount Installation: Choosing the Right Method
The choice between no-drill telescopic installation and permanent wall-mount installation comes down to four factors: your lease or ownership status, the structural condition of the surrounding walls, the security level required, and whether the window requires egress capability. For renters in apartment buildings in cities like Seattle, Denver, or Boston, no-drill telescopic installation is the only practical option — it provides full steel bar security without damaging the property, and the bars can be removed in minutes when moving out. For homeowners on ground-floor perimeters, particularly those in higher-crime neighborhoods, wall-mount installation using SWB’s Model B provides a more permanent and maximally secure solution. The Model B’s heavy-gauge steel bars are anchored directly into wall studs or masonry, creating a fixed barrier that is functionally equivalent to professionally welded bars at a fraction of the cost — typically $91 versus $600 to $1,800 for a professional installation. For landlords managing rental properties in cities like Chicago or Philadelphia, the telescopic system offers an additional advantage: bars can be removed and reinstalled between tenants without any wall repair costs.
How Security Bars for Doors and Windows Compare to Other Burglar Deterrents
American homeowners spend billions annually on security systems — alarm sensors, smart locks, video cameras, and monitoring subscriptions — yet residential burglary rates remain stubbornly high. The reason is straightforward: most electronic security systems detect a break-in after it has already begun. They notify you and potentially alert a monitoring center, but they do not physically prevent entry. A determined burglar can be in and out of a home in under three minutes — far faster than any police response time in any American city. Physical security bars for sliding glass doors and windows are the only solution that prevents entry at the point of attack. No alarm sensor makes the glass harder to break. No camera makes the door harder to force. Only a steel bar physically blocking the opening does that. This is why security professionals and insurance adjusters — including those at major American insurers — consistently recommend physical barriers as the first layer of residential security, with electronic systems serving as the second and third layers of a layered defense strategy. Our comprehensive guide to security window guards and security bars for doors and windows expands on how to build a complete perimeter security plan.
Alarm Systems vs. Security Bars: Understanding the Deterrence Gap
The deterrence gap is the period between when an intruder begins a break-in and when any response is possible. For alarm systems, even monitored ones, the average response time in major American cities ranges from 7 to 11 minutes according to data compiled by the National Sheriffs’ Association. The average residential burglary lasts between 8 and 10 minutes according to FBI crime data. This means that in many cases, a burglar can complete the entire crime — from breach to exit — within the response window. Security bars close the deterrence gap entirely at the point of entry. A burglar who encounters steel bars on a sliding glass door’s adjacent windows and a track bar in the door itself faces a completely different risk calculation: making significant noise, taking significantly longer, and being visible from the street while forcing the bars. The vast majority — criminologists estimate 80 to 90 percent — will abandon the attempt and move to a less protected target.
Smart Locks, Door Reinforcement, and Window Bars as a Layered System
The most effective residential security strategy for homes with sliding glass doors combines multiple layers of protection, each addressing a different attack vector. Layer one is physical deterrence: security bars on adjacent windows and a track bar or door reinforcement kit on the sliding door itself. Layer two is detection: door and window sensors, motion-activated lighting on the patio, and a monitored alarm system. Layer three is visibility: exterior cameras covering the patio and adjacent areas, a visible alarm system keypad near the glass door, and signage indicating monitored security. Layer four is delay: a secondary locking bolt on the sliding door in addition to the primary latch. For American families living in ground-floor units or homes with large patio configurations — especially in high-burglary cities like Houston, Atlanta, and Los Angeles — all four layers working together provide the most complete protection available without a professional security installation.
Security Bars for Glass Doors and Windows: Cost Analysis for American Homeowners
One of the most compelling arguments for DIY steel window bars is pure economics. Professional window bar installation in the United States — meaning a licensed contractor who supplies and welds or anchors custom steel bars to your windows and doors — costs between $500 and $1,800 per window or door opening according to HomeAdvisor and Angi cost data for 2023–2024. For a typical patio configuration with a sliding glass door and two adjacent windows, a homeowner in Chicago or Los Angeles could easily spend $2,000 to $5,000 on professionally installed fixed bars. SWB’s complete system — a Model B for the fixed-wall mounting on adjacent windows plus a Model A or Model A/EXIT for the egress-required bedroom window — covers the same configuration for under $200 in product cost, plus the cost of basic hardware store anchors and a few hours of a weekend afternoon. The steel gauge and mechanical strength of SWB’s systems are equivalent to professionally installed bars. The difference is entirely in the installation method and the overhead cost of a contractor’s labor and markup.
Renter Economics: Why Telescopic Bars Are the Only Logical Choice for Apartment Dwellers
With 44.1 million apartment renters in the United States according to the U.S. Census Bureau’s 2023 American Community Survey, the renter market represents the largest single demographic that needs affordable, non-permanent window security. Renters face a unique economic dilemma: they cannot permanently modify their apartments without risking their security deposit, but they live in buildings where ground-floor and below-grade units are statistically at much higher risk of break-in. The average security deposit in major American rental markets — New York, Los Angeles, Chicago, San Francisco — ranges from $1,500 to $3,000 or more. Permanent bar installation that damages walls, frames, or sills could result in deposit forfeiture that far exceeds the cost of the security product itself. SWB’s telescopic Model A resolves this entirely: install the bars in 15 to 20 minutes, enjoy full steel-bar security for the duration of the lease, and remove them with no trace when moving out. For renters in NYC high-rises, Chicago courtyard apartments, or ground-floor units anywhere in America, this is the only economically rational security upgrade available.
Landlord and Property Manager ROI: Security Bars as a Value-Add Investment
For landlords and property managers overseeing residential or mixed-use properties, security bars for sliding glass doors and windows represent a genuine return-on-investment proposition. Properties with documented security upgrades — including physical bars on ground-floor windows and patio doors — command higher rents in competitive markets, experience lower tenant turnover because tenants feel safer, and face lower liability exposure in the event of a break-in. Insurance carriers, including major American property and casualty insurers, often provide premium discounts for properties with physical security barriers on ground-floor openings. For real estate investors managing AirBnB or short-term rental properties, security bars on sliding glass doors and windows are a marketable amenity — particularly in urban markets where safety is a primary guest concern. SWB’s removable telescopic systems are especially valuable in short-term rental applications: they can be installed for the property and removed for deep cleaning or maintenance without tools or contractor scheduling.
Choosing the Right SWB Model for Your Sliding Glass Door and Window Configuration
Selecting the correct security bar model for your specific configuration depends on four key variables: whether you own or rent, whether the adjacent windows are in or adjacent to sleeping areas, the width of the window openings, and whether permanent installation is acceptable on your property. SWB offers three purpose-built models that together cover every residential and light commercial application in the American market. The Model A Telescopic Window Bars at $90 are the right choice for renters, for windows in non-sleeping areas, or for any situation where no-drill installation is required. The Model B Wall-Mount Window Bars at $91 are the right choice for homeowners who want permanent, maximum-strength installation on ground-floor windows adjacent to patio doors. The Model A/EXIT Egress Compliant Window Bars at $92 are the mandatory choice for any window in or adjacent to a sleeping area that must meet IRC, IBC, or NFPA 101 egress requirements. For most patio configurations — a sliding glass door with one window on each side, where one window is in a bedroom and one is in a living area — the optimal SWB system is one Model A/EXIT for the bedroom window and one Model A or Model B for the living area window, depending on ownership and installation preference. All three models ship via Amazon FBA for fast delivery to all 50 states, with no contractor scheduling, no wait times, and no installation surprises.
Model A/EXIT for Bedroom Windows Adjacent to Sliding Doors
The most safety-critical window position in any home is the one that serves as the emergency egress for a sleeping area. In a typical master bedroom suite with a sliding glass door to a private patio — common in suburban homes throughout California, Texas, Arizona, and Florida — the windows flanking the sliding door are often the only alternative emergency exit if the door itself is blocked by fire or smoke. Installing standard fixed bars on these windows without a quick-release egress mechanism is a serious life safety error. The Model A/EXIT’s patented quick-release system means that in a fire emergency, any adult or child inside the room can release the bar and fully open the window in seconds — while the same bar provides complete steel security against external forced entry under normal conditions. This dual functionality — maximum security inward, maximum safety outward — is why the Model A/EXIT is the cornerstone of SWB’s residential security system. Review full specifications and compliance certifications at the Model A/EXIT product page.
Building a Complete Perimeter with SWB Products for Patio Configurations
A complete patio perimeter security system using SWB products addresses every glass opening in the configuration: the sliding door track (using a separate track bar, door pin kit, or door reinforcement product), the bedroom-adjacent window (Model A/EXIT for egress compliance), the living area-adjacent window (Model A telescopic for rentals, Model B wall-mount for owned properties), and any secondary windows or transoms above the patio opening (Model A telescopic, as these are typically above egress height and do not require quick-release). This full-perimeter approach costs under $300 in SWB products — compared to $2,000 to $5,000 for a professionally installed equivalent — and can be completed by any homeowner in a single afternoon without specialized tools. For installation guidance specific to patio configurations and multi-opening setups, visit the SWB Installation Guide for detailed diagrams and step-by-step instructions covering wood, aluminum, and vinyl frame types.
🏆 Conclusion
Security bars for sliding glass doors and windows are not a luxury upgrade for American homeowners — they are a foundational layer of physical security that closes the most exploited vulnerability in residential construction. From the track-based weaknesses of patio doors to the overlooked exposure of adjacent floor-level windows, the glass wall of a typical American home represents an invitation to opportunistic burglars that no alarm system alone can revoke. SWB’s three-model lineup — the telescopic Model A, the permanent Model B, and the egress-compliant Model A/EXIT — provides a complete answer to this challenge at a price point that makes professional-grade protection accessible to renters, homeowners, landlords, and property managers across all 50 states. Whether you live in a ground-floor apartment in Chicago, a ranch home in Phoenix, or a condo with a private patio in Miami, the right SWB system can be measured, ordered, and installed this weekend. Don’t wait for a break-in to identify the vulnerability that was there all along. Protect every glass opening — door and window — with the steel strength, egress compliance, and renter-friendly design that only SWB delivers. Contact our team at securitywb.com/contact with any questions about your specific configuration.
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Shop on Amazon →Frequently Asked Questions
Security bars in the traditional telescopic or wall-mount sense are most effective on the fixed window panels adjacent to a sliding glass door. The sliding door itself is best secured using a track bar placed in the lower track to prevent sliding, combined with door pins drilled through the frame to prevent the door from being lifted off its track. For renters who cannot drill, an adjustable track bar plus telescopic security bars on all adjacent windows provides near-equivalent security without any permanent modification to the door or frame. SWB’s Model A Telescopic Bars cover the adjacent windows, and a standard patio door track bar — available at any hardware store — handles the door itself.
Not necessarily every window, but any window that serves as an emergency escape route for a sleeping area must have egress-compliant bars with a quick-release mechanism. Under the International Residential Code Section R310, sleeping areas must have at least one operable egress window meeting minimum size requirements. If a window adjacent to your sliding door is in or directly accessible from a bedroom, install SWB’s Model A/EXIT with its patented quick-release system. If the adjacent window serves only a living room or dining area with no sleeping function, a standard telescopic or wall-mount bar without quick-release is acceptable under most building codes. Always verify with your local building department if you are unsure about egress requirements for your specific layout.
Yes — SWB’s Model A Telescopic Window Bars are specifically designed for renters. They install using spring tension and pressure against the interior window frame, requiring no drilling, no anchors, and no wall damage. Installation takes 15 to 20 minutes and removal is equally fast. The bars provide the same steel-construction security as permanently installed bars because their deterrent strength comes from the steel bar itself blocking the opening — not from how the bar is anchored to the wall. For 44.1 million American apartment renters who cannot permanently modify their units, the Model A is the only practical solution that delivers genuine window security without risking a security deposit or violating a lease agreement.
Security bars — whether telescopic or wall-mount — consist of parallel horizontal or vertical steel rods that span the window opening, providing significant resistance to forced entry while maintaining some visibility and airflow. Security grates or grilles are welded steel grid patterns that cover the entire window opening, providing maximum coverage and typically greater strength, but blocking more light and airflow. Grates are common in commercial applications and high-risk residential ground-floor situations in cities like Detroit or Baltimore. For most American homeowners and renters with sliding glass door configurations, security bars provide sufficient deterrence with better aesthetics and easier egress compliance. Grates are ideal for non-egress commercial windows where maximum barrier strength is the priority over appearance or ventilation.
Professional security bar installation in the United States costs between $500 and $1,800 per window opening according to 2023–2024 data from HomeAdvisor and Angi. For a typical patio configuration with a sliding door and two adjacent windows, total professional installation costs typically range from $1,500 to $5,000 including materials, labor, and contractor markup. SWB’s DIY bar systems cost $90 to $92 per window, meaning a complete three-opening patio configuration — using one Model A/EXIT for the bedroom window and one Model A or Model B for the living area window — can be fully secured for under $200 in product cost. The SWB systems use the same heavy-gauge steel construction as professionally installed bars, and the installation quality is equivalent when following the provided step-by-step guide.
Security bars on windows are legal in all 50 states, but local fire safety codes and building codes may regulate how they are installed, particularly in sleeping areas. The most important legal requirement is egress compliance: any security bar installed on a window in or adjacent to a sleeping area must allow the window to be fully opened from the inside for emergency escape, meeting the minimum 20-by-24-inch clear opening specified in IRC Section R310. In New York City, Local Law 57 requires window guards on residential buildings housing children under 10, but mandates that at least one window per room remain operable for egress. SWB’s Model A/EXIT is specifically designed to meet these requirements across all US jurisdictions. Always check with your local building or fire department for any city-specific regulations before installation.
Exterior security bars are an option for homeowners who own their property and have accessible exterior wall space, but they come with several trade-offs compared to interior installation. Exterior bars are exposed to weather, requiring more maintenance against rust and corrosion, and they are more visible to neighbors and guests, which some homeowners prefer for maximum deterrence visibility. However, exterior installation on window frames adjacent to sliding glass doors can be complicated by overhanging eaves, stucco or brick exteriors, and HOA restrictions common in American suburban communities. Interior bars — like SWB’s Model A and Model B systems — avoid all of these complications, are protected from weather, and provide equivalent security because the bar’s purpose is to prevent the window from being opened or broken through, which interior bars accomplish just as effectively as exterior ones.
The answer depends on the size, accessibility, and location of the adjacent windows relative to the door and your interior layout. If the windows flanking your sliding glass door are large enough for a person to climb through — generally any window with an opening wider than 20 inches and taller than 24 inches — they need bars just as much as the door. In practice, most patio window panels in American residential construction are large enough to serve as entry points. Additionally, if adjacent windows are in or near a bedroom or other sleeping area, they represent both a security vulnerability and an egress requirement. SWB recommends treating the entire glass wall — sliding door and all adjacent openable windows — as a single security zone and applying appropriate bar systems to every accessible opening within it.