Window Security Bars for Brick & Masonry Walls: The Complete Installation Guide for US Homeowners
Learn how to install window security bars on brick and masonry walls. Step-by-step US guide covering anchors, codes, and SWB steel bar models from $90.
SWB: High-caliber Security Window Bars experts. We bring the most advanced protection within your reach, explained clearly. Installing window security bars for brick masonry walls requires a very different approach than framing a standard wood-stud or vinyl window — and getting it wrong can mean bars that pull free under exactly the kind of forced-entry pressure they were designed to resist. According to the FBI Uniform Crime Reports, approximately 60% of all home break-ins occur through ground-floor windows, and masonry-clad homes — common across older neighborhoods in Philadelphia, Chicago, Detroit, and Baltimore — are not immune. In fact, brick facades can create a false sense of security if the window openings themselves are left unprotected. This guide walks US homeowners, renters in masonry apartment buildings, and property managers through every step of a correct window security bars installation on brick, concrete block, and stone walls: from choosing the right masonry anchors and drill bits, to selecting between a permanent wall-mount system and a no-drill telescopic option, to ensuring full compliance with IBC and NFPA 101 egress codes.
Before purchasing anchors or lifting a hammer drill, identify exactly what your wall is made of. The three most common masonry substrates in US residential cons…
Why Masonry Walls Change Everything About Window Bar Installation
Brick, concrete block, and natural stone are fundamentally different substrates than wood framing. Wood allows screws to bite into grain fibers and develop shear strength relatively easily. Masonry, by contrast, is a hard, crystalline material that can crack under improper drilling technique, strip anchor holes if the wrong fastener is used, and — critically — may have mortar joints that are significantly weaker than the brick or block itself. When you are mounting window security bars on a masonry wall, every anchor point must be engineered to resist both shear force (the downward weight of the bars) and tensile pull-out force (an intruder grabbing the bars and pulling outward). A standard residential window bar installation may experience pull-out forces exceeding 500 lbs if a determined burglar uses a pry bar or car jack — a load that poorly set anchors in soft mortar will not survive. Understanding the masonry substrate beneath your bars is therefore the single most important step before any drill bit touches the wall. Older homes in cities like Philadelphia, Boston, and Chicago frequently feature soft common brick that dates back to the early 20th century, while newer construction in Houston or Phoenix may use hard concrete masonry units (CMUs). The installation strategy differs for each.
Identifying Your Masonry Type Before You Drill
Before purchasing anchors or lifting a hammer drill, identify exactly what your wall is made of. The three most common masonry substrates in US residential construction are: solid clay brick (pre-1960 construction, common in the Northeast and Midwest), concrete masonry units or CMUs (post-1960 construction, widespread in the South and Southwest), and natural stone (fieldstone or cut limestone, found in historic properties across New England and Appalachia).
How to Test Masonry Hardness
Tap the wall surface gently with a metal tool. Solid brick produces a clear ring; hollow CMU produces a dull thud. Scratch the mortar joint with a nail — if the mortar powders easily, it is lime-based and too soft to anchor into. Always anchor into the masonry unit itself (the brick or block), never into the mortar joint. A simple water absorption test can also reveal brick porosity: drop a few water droplets on the surface. If water absorbs within 60 seconds, the brick is porous and older — use sleeve anchors rated for that substrate rather than plastic expansion anchors.Load Requirements and Structural Expectations
Window security bars for brick masonry walls installation must account for the total load the mounting hardware will experience. The International Building Code (IBC) does not specify a universal pull-out strength for residential window bar anchors, but structural engineers commonly recommend a minimum 1,200-lb tensile capacity per anchor point for security applications — a standard easily met by 3/8-inch wedge anchors set at proper embedment depth in sound masonry. For a typical window bar system with four anchor points (two per side), this yields a total system resistance exceeding 4,800 lbs, which far exceeds any realistic forced-entry scenario.
Anchor Spacing and Edge Distance Rules
ASTM standards for masonry anchors require a minimum edge distance of 1.5 times the anchor diameter from any masonry edge, and minimum spacing of 3 times the anchor diameter between adjacent anchors. For a 3/8-inch anchor, that means a minimum 9/16-inch edge distance and 1-1/8-inch spacing. In practice, set anchors at least 2 inches from any mortar joint, brick edge, or window frame edge to prevent spalling during installation.When Masonry Condition Disqualifies Permanent Installation
Some masonry walls — particularly those in urban rental buildings in New York City, Detroit, or Chicago that have experienced decades of freeze-thaw cycles — may be too deteriorated for reliable permanent anchor installation. Spalling brick, delaminating mortar, or previous patch repairs are red flags. In these cases, attempting to drill permanent anchors creates liability for property owners and genuine safety risk for occupants. This is precisely the scenario where a telescopic, no-drill window bar solution is not just convenient — it is the structurally responsible choice. The SWB Model A Telescopic Window Bars apply pressure laterally against the window frame rather than relying on masonry anchors, making them ideal for compromised or historic masonry where drilling would cause damage or yield unreliable results.
Tools and Materials Required for Masonry Window Bar Installation
A correct window security bars for brick masonry walls installation is a precision job that requires specific tools not found in a basic homeowner toolkit. Using the wrong drill, wrong bit, or wrong anchor type on masonry is the leading cause of installation failures and subsequent security breaches. The investment in proper tools is minor compared to the cost of a break-in — and far less than the $600 to $1,800 average professional installation quote from a licensed contractor. Before starting, assemble every item on the following checklist. Attempting to substitute tools or skip steps on masonry is not a best practice shortcut — it is a structural compromise that directly affects your family's safety. This section covers the complete material and tool list for a permanent wall-mount installation, followed by guidance for the telescopic no-drill alternative.
Essential Power Tools for Masonry Drilling
A standard cordless drill will not cut it on brick or concrete block. You need a rotary hammer drill — sometimes called a hammer drill or SDS drill — that combines rotation with rapid hammering action to pulverize masonry material rather than just spinning against it. For residential window bar work, a 1/2-inch SDS-Plus rotary hammer is sufficient. Recommended minimum specs: 2.0 joules of impact energy, variable speed, and a depth stop collar to control anchor embedment depth precisely. Brands widely available at Home Depot and Lowe's locations across the US include Bosch, DeWalt, and Milwaukee — all carry SDS-Plus models in the $150–$300 range suitable for this application. You will also need a standard drill/driver for any wood-adjacent fastening, a level (24-inch minimum), a tape measure, and a pencil or chalk marker for layout.
Masonry Drill Bits and Anchor Selection Guide
For masonry window bar anchors, use carbide-tipped SDS-Plus rotary hammer bits — never standard HSS or wood bits. Bit diameter must match the anchor manufacturer's specification exactly; even 1/16-inch oversizing can cause anchor slippage under load. The three anchor types most appropriate for residential window bar installation on masonry are: (1) Wedge anchors — the strongest option for solid brick and concrete, available in zinc-plated and hot-dip galvanized versions; use 3/8-inch diameter by 3-inch length minimum for standard brick. (2) Sleeve anchors — excellent for hollow CMU because they expand to fill the void space inside the block; use 3/8-inch diameter. (3) Epoxy anchors — the highest-performance option, especially for cracked or irregular masonry; a two-part epoxy adhesive (such as Hilti HIT-RE 500 or Simpson SET-XP) is injected into the drilled hole before inserting a threaded rod, achieving bond strength in excess of 2,000 lbs per anchor in sound CMU.
Galvanized vs. Stainless Steel Fasteners
In humid climates — coastal Georgia, Florida, Louisiana, and the Pacific Northwest — standard zinc-plated anchors will corrode within a few years behind painted masonry, causing expansion and spalling. Specify hot-dip galvanized (HDG) or 304 stainless steel anchors for any exterior masonry installation in high-humidity environments. This is a code requirement in some Florida jurisdictions and simply best practice everywhere else.Additional Materials: Sealants, Spacers, and Safety Equipment
Once anchor holes are drilled, each hole must be blown clean of masonry dust using a hand pump bulb or compressed air before inserting any anchor — dust contamination reduces anchor pull-out strength by up to 40% according to anchor manufacturer testing data. For exterior installations, apply a masonry-compatible silicone sealant (clear or color-matched) around each anchor after installation to prevent water infiltration. Safety equipment for masonry drilling is non-negotiable: NIOSH-approved N95 respirator (silica dust from masonry is a known carcinogen under OSHA 29 CFR 1926.1153), safety glasses with side shields, and hearing protection rated at NRR 25 or higher. A dust collection shroud attachment for your rotary hammer dramatically reduces silica exposure and is highly recommended for any work performed in interior spaces.
Step-by-Step: Installing Wall-Mount Window Security Bars on Brick or Concrete
The SWB Model B Wall-Mount Window Bars are engineered specifically for permanent installation on hard surfaces including brick, concrete block, and poured concrete. The following procedure assumes a two-bracket mounting configuration — one mounting plate on each side of the window opening — with all anchors placed in the masonry surround rather than in the window frame itself. This is the preferred approach for masonry construction because window frames in brick openings are often wood nailers or aluminum extrusions that lack the structural depth to develop adequate anchor strength. This step-by-step walkthrough applies to a standard US window opening of 22 to 36 inches wide, which encompasses the vast majority of residential windows from ranch-style homes in suburban Atlanta to rowhouses in Baltimore and Philadelphia.
Layout, Measurement, and Hole Location Marking
Begin with the window closed and measure the full width of the masonry opening — the distance between the inside edges of the brick jambs, not the window frame. Mark the centerline of the window on both the top and bottom of the opening with a pencil. Position the SWB Model B mounting brackets per the included installation template, ensuring the bracket flanges land fully on solid masonry (at least 2 inches from any mortar joint). Use a 4-foot level to confirm the bracket positions are plumb on both sides and level across the opening — even a 1/8-inch out-of-level condition will cause the horizontal bars to sag visibly once loaded. Mark all anchor hole locations with a center punch or sharp nail before drilling to prevent the bit from wandering on the hard masonry surface. Double-check all measurements before drilling: masonry holes cannot be un-drilled, and misplaced holes in brick become permanent cosmetic defects.
Drilling, Setting Anchors, and Mounting the Bar Frame
Set the rotary hammer to rotary-hammer mode (not rotation-only). Using your carbide SDS-Plus bit, drill each hole to the depth specified by the anchor manufacturer — for 3-inch wedge anchors in solid brick, this is typically 3-1/4 inches. Keep the drill perpendicular to the wall surface throughout the cut; angled holes reduce anchor strength significantly. After each hole, blow it clean with compressed air or a hand bulb, insert the anchor, and drive it to the correct embedment depth with a socket wrench — do not impact-drive wedge anchors, which can crack brick. Once all anchors are set, position the mounting bracket over the anchor studs, add flat washers, and torque the nuts to the manufacturer's specified value (typically 25–35 ft-lbs for 3/8-inch wedge anchors in solid brick). Attach the SWB Model B bar frame to the mounted brackets and perform a firm push-pull test — the assembly should exhibit zero movement. Apply silicone sealant around all exposed anchors and allow a 24-hour cure before considering the installation complete.
Final Inspection Checklist Before the Job Is Done
Before calling the installation complete, run through this checklist: all anchor nuts torqued to specification; bar frame level and plumb; no visible cracks in masonry around anchor points (if cracks appear, the anchor must be relocated and the cracked hole filled with epoxy); all gaps between bracket flanges and masonry surface filled with non-shrink grout or silicone to prevent water ingress; window still opens and closes freely without contacting the bar frame; if installing a Model A/EXIT egress bar, quick-release mechanism tested from the inside with the window fully open to confirm compliance with NFPA 101 minimum 20×24-inch clear egress opening. Document the installation with photographs before and after — this is especially important for rental properties in NYC, Chicago, and other cities where building inspectors may request proof of code-compliant installation.
No-Drill Telescopic Bars: The Smart Alternative for Masonry Rental Properties
Not every masonry wall is suitable for permanent anchor installation, and not every resident is authorized to drill into their building's structure. According to US Census Bureau data, there are 44.1 million apartment renters in the United States — and the majority of those in cities like New York, Chicago, Boston, and Philadelphia live in masonry buildings where drilling into the brick or concrete block structure is explicitly prohibited by their lease. For these renters, the SWB Model A Telescopic Window Bars deliver equivalent physical security without a single anchor in the masonry wall. The telescopic design expands to apply horizontal compression force against the inner window frame — the wooden or metal stops inside the window opening — rather than relying on masonry anchors. Installation takes 15 to 20 minutes, requires no power tools, and leaves zero permanent marks when removed, making it the definitive security solution for renters who move frequently or whose lease prohibits alterations.
How Telescopic Bars Generate Security Force Without Masonry Anchors
The SWB Model A uses a threaded telescopic extension mechanism that, when tightened, expands the bar assembly horizontally until it presses firmly against the window stop on both sides of the opening. This friction-fit installation generates significant lateral resistance — the same mechanical principle used in tension curtain rods, but engineered from heavy-gauge steel rather than lightweight aluminum. A burglar attempting to pull the bars outward must overcome both the friction force at the contact points and the bending resistance of the steel bar assembly itself. For standard residential windows in apartments across Chicago's South Side, LA's East Hollywood, or Houston's Third Ward — all neighborhoods with above-average residential burglary rates — this level of resistance is a powerful deterrent. The Model A fits windows 22 to 36 inches wide, covering the vast majority of standard US residential window sizes, and the matte black powder-coat finish blends naturally with contemporary window trim. You can explore the full specs at the Model A product page: securitywb.com/model-a/
Telescopic Bars vs. Permanent Masonry Anchors: Security Comparison
A common misconception is that a no-drill installation must be weaker than a permanently anchored one. In practice, the comparison is more nuanced. A correctly installed telescopic bar on a sound window frame with a 2-inch thick wooden stop generates hundreds of pounds of lateral resistance before any movement occurs. A poorly installed masonry anchor in deteriorated mortar or underpowered brick may actually fail at lower loads than a properly tensioned telescopic unit. For the majority of residential burglary attempts — which, according to the FBI, involve opportunistic intruders trying to gain access in under 60 seconds — the visible presence and initial physical resistance of either system is the primary deterrent. The decision between telescopic and wall-mount should be driven by property type, masonry condition, lease terms, and whether egress compliance is required, not by an assumption that permanent always means stronger.
Egress Compliance With the Model A/EXIT for Masonry Buildings
For bedrooms and sleeping areas in any US residential building — whether a masonry rowhouse in Philadelphia or a concrete apartment tower in Miami — NFPA 101 Life Safety Code and the International Residential Code (IRC) require that window bars in sleeping areas incorporate a quick-release mechanism operable from the inside without special tools or keys. The SWB Model A/EXIT solves this with a patented quick-release egress bar that removes the security bar in seconds from the interior while maintaining full burglar resistance from the outside. This model is compliant with IBC, NFPA 101, and OSHA standards, and meets the IRC minimum egress opening requirement of 20 inches wide by 24 inches high. For masonry rental buildings where permanent installation is not permitted, the Model A/EXIT is both the legally correct and logistically practical solution. Review full egress compliance details at the Model A/EXIT page.
Building Code Compliance for Window Security Bars on Masonry Structures
Compliance is not optional when it comes to window security bars — particularly in masonry buildings, which are disproportionately represented in the older urban housing stock where strict local ordinances apply. The intersection of the International Building Code, NFPA 101, OSHA standards, and city-specific regulations creates a compliance matrix that every property owner, landlord, and building manager must understand before installing any window bar system. Non-compliant installation can result in fines, forced removal orders, and — most critically — fatal consequences if occupants cannot escape through a barred window during a fire. The following guidance covers federal model codes and highlights key city-specific requirements that affect masonry building owners across the United States.
IBC and IRC Egress Requirements for Window Bars
The International Building Code (IBC) Section 1030 and the International Residential Code (IRC) Section R310 both address emergency escape and rescue openings. The core requirement for sleeping rooms is that at least one window must provide a minimum net clear opening of 5.7 square feet (5.0 square feet at grade), with a minimum clear opening width of 20 inches and minimum clear opening height of 24 inches. Any window bar system installed in a sleeping room must either be removable without tools from the interior (quick-release mechanism) or be designed so that the bars themselves do not reduce the window's net clear opening below code minimums. The SWB Model A/EXIT is explicitly designed to meet these requirements. Property owners in masonry buildings who install non-egress-compliant bars on bedroom windows in Philadelphia, Chicago, or Baltimore face code violations that can result in stop-use orders and civil liability. For a full breakdown of installation requirements, see our detailed installation guide at securitywb.com/installation/
NYC Local Law 57 and Window Guard Requirements
New York City has the most stringent and well-enforced residential window guard requirements in the United States. NYC Local Law 57 mandates that landlords install approved window guards on all windows — except fire escape windows — in apartments where children under 10 years of age reside. This requirement applies to the city's predominantly masonry housing stock: pre-war brick apartment buildings, concrete mid-rises, and brownstones throughout Manhattan, Brooklyn, the Bronx, and Queens. Importantly, NYC-approved window guards must meet the NYC Department of Health specifications, which require guards that a child cannot open but that adults can remove in an emergency. Building owners who install non-approved guards — including decorative ironwork or improperly anchored bars — face fines starting at $250 per window and potential liability for injuries. Always confirm that any window guard product installed in NYC rental units carries the appropriate Department of Health approval markings.
Masonry-Specific Structural Permits and Inspections
In many US jurisdictions, permanent attachment of security bars to exterior masonry walls requires a building permit, particularly when the bars are installed on the exterior face of the building or when anchor embedment exceeds certain depths. Cities including Chicago (Municipal Code Chapter 13-196), Los Angeles (LA Building Code Section 91.1001), and Boston (Inspectional Services Department guidelines) all have provisions that may trigger permit requirements for exterior masonry modifications. The permit process for masonry window bar installation typically involves submitting a product specification sheet, anchor layout drawing, and in some cases a licensed engineer's stamp confirming the anchor system's load capacity. Contact your local building department before beginning any exterior masonry anchor work. If you are uncertain about local requirements, the SWB team can provide product specifications and installation documentation to support permit applications — reach out through securitywb.com/contact/
Choosing the Right SWB Model for Masonry Buildings
Security Window Bars offers three distinct models, each suited to a different combination of masonry building type, occupancy, and installation authorization. Understanding which model matches your specific situation — a ground-floor apartment in a Chicago masonry six-flat, a suburban Philadelphia rowhouse you own outright, or a basement bedroom in a concrete-block home in suburban Atlanta — is the key to getting maximum security value from your purchase. All three SWB models are made from heavy-gauge steel with a powder-coat matte black finish, ship via Amazon FBA for fast delivery to all 50 US states, and are priced substantially below the $600–$1,800 professional installation market.
Model A — Telescopic Window Bars ($90): Best for Renters in Masonry Buildings
The SWB Model A is the optimal choice for apartment renters in masonry buildings who cannot drill into the structure. No masonry anchors, no permits, no damage deposit risks. It fits windows 22 to 36 inches wide, installs in 15 to 20 minutes without tools, and is fully reversible — critical for renters in NYC, Boston, Chicago, and other cities where lease violations for unauthorized structural modifications are common. The matte black finish coordinates with the vast majority of contemporary and traditional window trim profiles found in American masonry buildings. Priced at $90, it delivers professional-grade steel bar security at a fraction of the $600+ contractor quote. Shop the Model A directly on Amazon for fast nationwide delivery or visit the Model A product page for full specs.
Model B — Wall-Mount Window Bars ($91): Best for Homeowners With Sound Masonry
The SWB Model B Wall-Mount Window Bars are the right choice when you own the property, the masonry is in sound condition, and you want a permanent installation that provides maximum long-term security. Designed for exterior wall mounting on brick, concrete block, or poured concrete, the Model B uses a heavy-gauge steel frame with four pre-drilled mounting flanges that accept 3/8-inch masonry anchors. This model is particularly well-suited for ground-floor windows on masonry single-family homes and rowhouses in Philadelphia, Baltimore, Detroit, and similar markets where street-level break-in risk is high. At $91, it represents extraordinary value compared to a professional installation costing $600 to $1,800. The powder-coated black finish resists rust in exterior masonry environments and complements both brick and stone exteriors. Full product details are available at the Model B page: securitywb.com/model-b/
Model A/EXIT — Egress Compliant Bars ($92): Required for Masonry Bedroom Windows
Any masonry building with sleeping areas — whether a two-bedroom apartment in a Chicago graystone or a basement bedroom in a concrete block home — must comply with NFPA 101 and IRC emergency egress requirements. The SWB Model A/EXIT is the only SWB model with a patented quick-release egress mechanism, making it the legally required choice for bedroom windows in any jurisdiction that has adopted IBC, IRC, or NFPA 101. At $92 — just $2 more than the standard telescopic model — the A/EXIT provides both maximum burglary deterrence and guaranteed code compliance. It is telescopic (no masonry drilling required), adjustable to window widths from 22 to 36 inches, and installs in the same 15–20 minutes as the Model A. For property managers overseeing masonry apartment buildings in any major US city, the Model A/EXIT is the single product that eliminates both security liability and egress code liability simultaneously. View full egress compliance documentation at securitywb.com/model-a-exit/
Common Mistakes to Avoid When Installing Window Bars on Masonry
Even experienced DIYers make critical errors when transitioning from wood-framing to masonry installation for the first time. The consequences in a security application are more serious than a crooked shelf bracket — a failed masonry anchor under forced-entry load can mean the bar frame pulls free exactly when you need it most. The following section documents the most common installation mistakes seen in residential masonry window bar projects across the US, based on professional installation experience and post-failure analysis reports. Avoiding these errors is as important as following the correct installation steps.
Anchoring Into Mortar Joints Instead of Masonry Units
This is the single most common and consequential mistake in masonry window bar installation. Mortar joints in older brick buildings are significantly softer than the brick units themselves — in pre-1960 lime-mortar construction common across the Northeast and Midwest, mortar may have a compressive strength of only 500 psi compared to 3,000+ psi for the brick. A wedge or sleeve anchor set in mortar rather than in the brick body will achieve only a fraction of its rated pull-out strength. Always position anchors so the centerline lands squarely in the middle of a masonry unit. If your window opening dimensions make this impossible due to mortar joint spacing, use an epoxy anchor system, which bonds chemically to whatever masonry material is present and is less sensitive to substrate quality variation.
Using Standard Household Drills and Inappropriate Bit Types
A standard cordless drill — even a high-torque 20V model — will overheat, chatter, and eventually fail when attempting to drill through brick or concrete block. The rotary-hammer mode is mechanically distinct from rotation plus clutch, and attempting to substitute one for the other results in severely out-of-specification holes that do not develop proper anchor engagement. Similarly, using wood or metal twist bits on masonry will damage the bit within seconds and leave a rough, undersized, or oversized hole. The $150–$200 investment in a proper SDS-Plus rotary hammer is non-negotiable for this application. Home Depot tool rental departments in most US cities offer rotary hammers by the day for approximately $45, making this an accessible option for one-time installations.
Skipping the Silicone Seal Around Exterior Masonry Anchors
Drilled masonry anchor holes that are left open to weather create direct pathways for water infiltration into the wall assembly. In climates with freeze-thaw cycles — essentially any location north of the I-10 corridor — water that enters an unsealed anchor hole will expand upon freezing, gradually spalling the masonry around the anchor and reducing its grip strength over successive winters. After five to ten years without sealant, an anchor that initially developed 1,500 lbs of pull-out resistance may retain only 40% of that capacity. Apply a masonry-compatible silicone sealant rated for exterior use (Dow 790 or equivalent) around every anchor immediately after installation, and inspect and re-apply sealant every three to five years as part of routine home maintenance in freeze-thaw climates from Minneapolis to New England.
🏆 Conclusion
Installing window security bars for brick masonry walls requires more technical knowledge than a standard wood-frame installation — but it is absolutely achievable by a competent DIYer with the right tools, the right anchors, and a clear understanding of the substrate. The key decisions are: identify your masonry type before purchasing anchors; always set anchors in the masonry unit, never the mortar joint; use a rotary hammer drill with carbide SDS-Plus bits; seal all exterior anchor holes against weather; and ensure full compliance with IBC, IRC, and NFPA 101 egress requirements for any sleeping area windows. For renters in masonry buildings who cannot drill — or for any situation where masonry condition is compromised — the SWB Model A Telescopic Window Bars deliver the same heavy-gauge steel protection without a single hole in the wall. For permanent masonry installations, the SWB Model B provides the structural anchor framework engineered for brick and concrete block. And for bedroom windows in any masonry building anywhere in the United States, the SWB Model A/EXIT egress bar is both the legally required and the practically superior solution. All three SWB models are priced between $90 and $92 — a fraction of the $600–$1,800 professional installation cost — and ship via Amazon FBA for fast delivery to all 50 states. Protect your home with the authority that thousands of American families trust.
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Shop on Amazon →Frequently Asked Questions
Yes. The SWB Model A Telescopic Window Bars use a friction-fit telescopic design that expands horizontally against the interior window frame stops — no masonry anchors, no drilling, no damage to brick or mortar. This makes them ideal for renters in masonry apartment buildings where lease agreements prohibit structural modifications. The system fits windows 22 to 36 inches wide and installs in 15 to 20 minutes using only hand tools. The matte black steel construction delivers equivalent burglary deterrence to permanently anchored bars for the vast majority of residential security scenarios.
For solid clay brick common in pre-1960 construction, 3/8-inch wedge anchors set with a rotary hammer at minimum 3-inch embedment depth are the standard choice, delivering pull-out strength exceeding 1,200 lbs per anchor in sound brick. For concrete masonry units (CMUs), sleeve anchors are preferred because they expand to engage the hollow core of the block. For deteriorated, cracked, or irregular masonry of any type — common in older urban neighborhoods across Chicago, Philadelphia, and Detroit — a two-part epoxy anchor system (such as Hilti HIT-RE 500 or Simpson SET-XP) provides the most reliable bond by chemically adhering to the masonry substrate regardless of surface condition.
Absolutely. The International Residential Code (IRC) Section R310 and NFPA 101 Life Safety Code both require that window bars installed on bedroom windows include a quick-release mechanism operable from the inside without special tools or keys. The minimum egress opening required is 20 inches wide by 24 inches high. Failure to meet these requirements in sleeping areas is a code violation in virtually every US jurisdiction, and non-compliant bars have contributed to preventable fatalities in residential fires. The SWB Model A/EXIT is specifically designed and patented to meet these egress requirements while providing full exterior burglar resistance, and it is the recommended solution for any masonry bedroom window across all 50 states.
No — this is one of the most dangerous mistakes in masonry window bar installation and must be avoided. Mortar joints, especially lime-based mortar in pre-1960 construction common throughout the Northeast and Midwest, are significantly softer than the brick units and will not develop the anchor pull-out strength necessary to resist forced entry. Anchors set in mortar may achieve only 30 to 50 percent of the load capacity specified by the anchor manufacturer for solid masonry. Always position anchors so they land squarely in the center of a brick or concrete masonry unit, at least 2 inches from any mortar joint. If window dimensions prevent this, use an epoxy anchor system for reliable bonding in any substrate condition.
It depends on your jurisdiction and installation type. Many US cities, including Chicago, Los Angeles, and Boston, have provisions in their municipal building codes that may require permits for permanent exterior masonry modifications, particularly when anchors are embedded into structural masonry walls. Interior telescopic installations (no masonry drilling) typically do not require permits. If you own a masonry property and plan a permanent wall-mount installation, contact your local building department before starting work. SWB can provide product specification sheets and installation documentation to support permit applications — reach the team directly through securitywb.com/contact/ for assistance with your specific jurisdiction's requirements.
Yes, with one critical caveat. Window bars on masonry buildings are highly effective at preventing child falls from upper-floor windows — a significant concern addressed by NYC Local Law 57 and similar ordinances in other cities. However, any window bar or guard installed in a room used as a sleeping area by adults must incorporate a quick-release egress mechanism to comply with NFPA 101 and IRC requirements. For upper-floor non-bedroom windows where child fall prevention is the sole objective and egress from that window is not required, a permanent wall-mount installation with masonry anchors provides excellent protection. Always verify your local code requirements and consult securitywb.com/contact/ if you are uncertain which product applies to your situation.
A correctly installed masonry anchor system in sound brick or concrete block, properly sealed against weather infiltration, will maintain its structural integrity for 20 years or more with minimal maintenance. The primary maintenance items are: inspect anchor sealant every 3 to 5 years and reapply as needed (especially important in freeze-thaw climates from Minnesota to New England); inspect the bar frame powder coat for rust spots annually and touch up with matching paint if needed; retorque anchor nuts every 5 years to compensate for any minor masonry settlement. SWB steel bars feature a durable matte black powder-coat finish specifically selected for long-term exterior durability in the varied climate conditions across the United States.
The SWB Model A is a telescopic, no-drill window bar that applies friction pressure against the interior window frame — ideal for renters in masonry buildings who cannot drill into the structure, or for any situation where masonry condition is questionable. It is fully removable and adjustable from 22 to 36 inches. The SWB Model B is a wall-mount system designed for permanent installation on brick, concrete block, or poured concrete using masonry anchors, delivering maximum long-term security for homeowners who own their masonry property and want a fixed installation. Both models are made from heavy-gauge steel with a powder-coat matte black finish and are priced at $90 and $91 respectively. The right choice depends on whether you own or rent, the condition of your masonry, and whether permanent installation is authorized.