Cost factors for electric strike vs magnetic lock
Selecting the right electrified lock for a commercial or residential door means weighing hardware price, installation complexity, power requirements, and ongoing maintenance — and the cost factors for electric strike vs magnetic lock differ in ways that are not always obvious from a catalog page. Both devices control access electronically, but they operate on fundamentally different principles, draw different amounts of current, and suit different door types and code environments. Understanding those differences before purchasing or replacing hardware can prevent costly retrofits and code violations down the road.
Cost factors for electric strike vs magnetic lock overview
An electric strike replaces the static strike plate in a standard door frame. When the lock is energized — either by a credential reader, keypad, or intercom — the strike pivots or retracts, allowing a spring-latch or dead-latch to pass through and release the door. Because the locking bolt remains on the door leaf itself, the door still appears and behaves like a conventionally locked door when the power is off, which is why electric strikes are popular in applications where fail-secure operation is preferred.
A magnetic lock, by contrast, uses an electromagnet mounted on the door frame and a steel armature plate mounted on the door. When current flows, the magnet and plate bond with holding forces typically ranging from 600 lb to 1,500 lb. Cut the power — whether intentionally through an access credential or unintentionally through an outage — and the door releases immediately. This fail-safe characteristic makes magnetic locks a common choice where fire or life-safety codes require free egress during emergencies.
From a pure hardware standpoint, entry-level electric strikes start around $50–$80 for light-duty aluminum-frame applications, while commercial-grade units designed for hollow-metal frames or high-cycle environments can reach $250–$600. Magnetic locks at the 600 lb holding-force tier typically run $80–$180 for the magnet assembly alone, while 1,200 lb single-door units and surface-mount dual-door systems can reach $300–$700. Neither figure includes the power supply, access control panel, wiring, or labor — costs that often exceed the hardware price itself.
Key factors that drive cost differences
Door type and frame material have an outsized influence on which device is practical and what installation will cost. Electric strikes must match the frame preparation — a cylindrical-latch door needs a different strike geometry than a mortise-lock door, and a door with a wide stile may require a spacer kit or custom modification. Frame material matters too: wood frames accept most strikes with standard prep work, but hollow-metal frames often require a mortise pocket, adding labor. Magnetic locks are largely frame-agnostic on the surface, but achieving proper alignment between the magnet and armature on an aluminum storefront door versus a solid wood door changes the bracket hardware needed and therefore the parts cost.
Power consumption affects both upfront supply sizing and long-term utility costs. Most electric strikes operate on 12 VDC or 24 VDC and draw 250–500 mA when energized. Because they are typically energized only momentarily during an unlock event (fail-secure configuration), average power draw is low. Magnetic locks, being fail-safe, must stay energized continuously to keep the door locked — a 1,200 lb magnet may draw 500–600 mA at 12 VDC around the clock. That continuous draw requires a larger, more robust power supply and contributes to measurable electricity costs over time, both of which belong in the total cost analysis.
Access control integration complexity varies between the two technologies. Electric strikes connect easily to most legacy access control panels because their low-current, momentary draw is well within standard relay output ratings. Magnetic locks, particularly higher-force models, sometimes require a separate relay board or a dedicated locking power supply with built-in fire-alarm interface relays, which adds $80–$300 to the project depending on the building’s existing infrastructure. Buildings that already have a fire alarm system must ensure the mag lock releases on alarm — a code requirement that necessitates either a door position switch, request-to-exit sensor, or direct integration with the panel, each adding parts and labor.
Egress and code compliance costs are frequently overlooked. Magnetic locks on doors in the path of egress require a means of free egress — typically a push-pad or touchbar with a request-to-exit sensor, sometimes a timed release tied to door position. These add $150–$500 in hardware per door beyond the lock itself. Electric strikes in fail-secure mode may satisfy egress requirements with the mechanical trim alone, but if the application involves a fire-rated door assembly, the strike must carry a UL listing compatible with the door’s rating, which narrows product selection and can increase hardware cost.
Costs and risks of improper selection or installation
Installing the wrong device or wiring it incorrectly carries financial and safety consequences. A fail-secure electric strike on a required-egress door that locks occupants in during a power failure is a life-safety code violation that can result in fines, forced remediation, and liability exposure. Conversely, a fail-safe magnetic lock installed without a proper fire-alarm interface may hold a fire-rated door open during an emergency — exactly the opposite of its intended function.
Electrical risks are also real. Magnetic locks are inductive loads; when power is cut, they generate a voltage spike that can damage relays, control boards, or solid-state outputs on access control panels. A properly installed system includes a transient suppressor (flyback diode or MOV) across the lock coil. Omitting this suppressor is a common DIY error that leads to premature failure of control equipment, turning a $150 hardware purchase into a $400–$800 board replacement.
Improper strike installation on a hollow-metal frame can result in the strike body shifting under repeated use, causing misalignment, latch jams, and eventual failure of the frame pocket. Correcting a poorly mortised hollow-metal frame after the fact typically requires a welder or frame replacement — costs that dwarf the original installation savings. For electric strikes specifically, selecting a unit with insufficient holding force or the wrong latch geometry means repeated false-unlocks or hard-to-open doors, both of which generate service calls and tenant complaints.
On the magnetic lock side, armature misalignment is the primary mechanical risk. Even a small gap between the armature and the magnet face dramatically reduces holding force — a 1/16-inch gap can cut effective holding force by 30–50 percent on some units. Getting the bracket geometry right at installation requires measuring tools, patience, and familiarity with the specific hardware, which is why professional installation typically produces more consistent results than self-installation.
When to call a locksmith for electric strike or magnetic lock work
A licensed locksmith with access control experience is the appropriate resource for new installations, retrofits to existing door hardware, troubleshooting intermittent lock failures, and any situation where code compliance is in question. Locksmiths who regularly work with electrified hardware carry the wiring knowledge, frame modification tools, and product familiarity to match the right device to a given door — and to document the installation in ways that satisfy building inspectors or insurance requirements.
Service calls are warranted when an electric strike fails to release reliably, when a magnetic lock holds inconsistently, when a door position sensor generates repeated false alarms, or when a power supply shows signs of overload. These symptoms often trace to specific, diagnosable causes: a worn latch cam on a strike, a failing suppressor on a mag lock circuit, a misadjusted door closer increasing gap at the armature, or a power supply undersized for the connected load. A locksmith familiar with access control systems can isolate the cause without replacing hardware unnecessarily.
Emergency situations — a magnetic lock that will not release, trapping occupants, or an electric strike that will not lock, leaving a door unsecured — require an immediate response. In these cases, a 24/7 mobile locksmith service is the correct call rather than waiting for a security integrator’s scheduled appointment window. Average service call cost for access control troubleshooting: Average: $95 · Range: $75–$150 · Travel: free in service area. Hardware replacement costs vary by device; a field technician can provide an accurate quote on-site after diagnosis.
Recommended next steps for evaluating electric strike vs magnetic lock costs
Start by identifying the door type, frame material, and latch hardware already in place. This determines which electric strike models are compatible without additional frame modification and whether a magnetic lock installation requires a surface-mount bracket system or a recessed approach. Document the door’s fire rating, if any, and check whether it sits in a required egress path — those two facts alone will eliminate several product categories and prevent costly selections.
Audit the existing access control infrastructure. If there is already a panel, power supply, and credential readers in place, ask whether the power supply has sufficient current headroom for the new lock. A common mistake is adding a magnetic lock to an existing 12 VDC, 1-amp power supply that is already powering two other devices — the result is undervoltage, reduced holding force, and eventual power supply failure. If the building uses a fire alarm system, confirm whether the locksmith or integrator will coordinate with the alarm company to wire the door-release interface, since that work touches both trades.
Request itemized quotes that separate hardware, labor, power supply, ancillary hardware (brackets, request-to-exit sensors, door position switches), and any required frame modification. A quote presented as a single lump sum makes it difficult to compare vendors or identify where cost savings are possible. For a single door, a complete professional installation of a commercial-grade electric strike — including hardware, wiring, and a 2-amp power supply — typically falls in the $350–$650 range. A comparable magnetic lock installation with fire-alarm interface runs $450–$900 depending on the complexity of the fire panel integration.
Plan for a service interval. Both electric strikes and magnetic locks benefit from an annual inspection: checking latch cam wear on strikes, verifying armature surface condition on mag locks, testing power supply output voltage under load, and confirming that all egress-release features work as intended. Scheduling that inspection proactively is less expensive than diagnosing a failure during a busy building day or, worse, during an emergency.
Related guides and references: Residential Electromagnetic Locks, What Homeowners Should Know About Electric Strike vs Magnetic Lock.
Call Low Rate Locksmith
Low Rate Locksmith provides 24/7 mobile locksmith service across the US and Canada for electric strike installation, magnetic lock service, access control troubleshooting, and emergency lock response. Whether the need is a new installation, a failing lock that requires same-day diagnosis, or a code compliance question about egress hardware, the team can be reached any time at (833) 439-8636. Travel is free within the service area, and field technicians carry common electric strike and magnetic lock hardware on the vehicle for same-visit repairs when possible.