A standard residential deadbolt can be bumped open in under 10 seconds with a $5 tool — high-security cylinders from Medeco, Schlage Primus, and Mul-T-Lock are specifically engineered to defeat that attack, along with picking, drilling, and unauthorized key duplication. The difference isn’t marketing language — it’s measurable engineering in the cylinder tolerances, key control systems, and hardened materials. Understanding what those differences actually are helps you decide whether a high-security upgrade is warranted for your specific property in Tempe.
Most Tempe properties run builder-grade Kwikset or standard Schlage deadbolts — hardware that meets code, operates reliably, and costs $25–$50 at a hardware store. That hardware does what it’s designed to do. What it’s designed to do is resist casual entry attempts, not targeted attacks by someone who has bought a bump key or a basic pick set. The gap between builder-grade and high-security isn’t a gap in everyday function — both turn smoothly with the right key. The gap is in what happens when someone tries to open the lock without a key.
Our locksmiths at CallOrange Locksmith in Tempe install and service high-security cylinders from Medeco, Schlage Primus, Mul-T-Lock, and ASSA Abloy on residential and commercial properties throughout Tempe and Metro Phoenix. Find our location and read reviews from Tempe property owners on Google Maps before you call. We carry high-security hardware on every truck and provide a written quote before any installation begins.
Founded in 2008, CallOrange has 17+ years of commercial and residential locksmith experience in the Tempe area. Techs Michael and Liran work high-security installations regularly — this isn’t hardware we special-order; it’s on the truck.
What Makes a Lock “High Security” — The Three Measurable Differences
The term gets used loosely in hardware store marketing. In the locksmith industry, high security has a specific meaning rooted in three engineering characteristics.
Pick resistance through tight tolerances and security pins. A standard pin tumbler cylinder uses simple driver pins and key pins. The tolerances between the pin diameter and the cylinder bore allow enough variation that a skilled pick can manipulate each stack individually — a technique called single-pin picking. High-security cylinders use spool pins, serrated pins, or mushroom pins that create false sets — the pick detects what feels like a shear line but isn’t one. Combined with tighter manufacturing tolerances that reduce the working room available to a pick, these cylinders require significantly more skill and time to pick, and many are effectively resistant to all common pick attacks.
Bump resistance through sidebar or secondary locking mechanisms. Key bumping uses a modified blank cut to maximum depth. When struck, the impact briefly separates all pin stacks simultaneously, and a fast rotation at that moment opens the cylinder. High-security cylinders defeat this with a sidebar mechanism — a secondary locking bar that must be engaged by rotating elements in the key itself, not just the pin stacks. A bump key has no sidebar profile and cannot engage that mechanism. Medeco cylinders use a combination of rotating key elements and a sidebar. Schlage Primus uses a secondary set of pins in a separate channel. Mul-T-Lock uses a telescoping pin system inside each stack. All three defeat standard bump attacks by design.
Key control through restricted keyways and patented blanks. A standard Kwikset key blank is available at every hardware store and locksmith supply house. Anyone with your key for 30 seconds can have a copy cut anywhere. High-security systems use patented keyways with restricted blanks — key duplication requires factory authorization or a licensed dealer account. Medeco keys can only be duplicated by authorized Medeco dealers with written authorization from the registered key owner. Mul-T-Lock uses a similar registered system. This means that even if a key leaves your control temporarily, an unauthorized copy cannot be made.
High-Security Cylinders We Install in Tempe — What Each One Is Best For
Medeco is the highest-recognition high-security brand in the U.S. market. Medeco cylinders combine the sidebar mechanism with key elements that rotate in the cylinder in addition to the standard vertical pin movement — the correct key must both lift all pins to the shear line and rotate each element to the correct angular position to engage the sidebar. This dual-axis requirement makes Medeco one of the most pick-resistant cylinders commercially available. Medeco is available as a deadbolt cylinder, knob cylinder, rim cylinder for commercial doors, and high-security padlock. It’s the standard choice for commercial properties in Tempe that need documented key control and maximum cylinder resistance.
Schlage Primus uses a secondary pin system in a separate keyway channel alongside the standard pin stacks. The Primus key has a standard cut profile for the primary pins plus a secondary milled track on the blade that engages the Primus pins in a separate channel. Both sets must align simultaneously. Primus keys cannot be duplicated on standard key cutting equipment — the secondary track requires Primus-specific blanks available only through authorized Schlage dealers. For Tempe homeowners and commercial operators already running Schlage hardware, the Primus upgrade integrates with existing Schlage door prep without modification.
Mul-T-Lock uses a telescoping pin system where each standard pin contains a second spring-loaded element inside it, creating a lock within a lock. To reach the shear line, both the outer pin and the inner element must be aligned simultaneously. The key has a standard external cut plus a dimple pattern on the blade face that operates the inner elements. Mul-T-Lock is widely used in Israeli government and military applications and is one of the most drill-resistant cylinders in the civilian market due to the hardened steel inserts around the pin chambers. It’s the preferred choice for high-value commercial applications in Tempe where both pick resistance and physical attack resistance are priorities.
ASSA Abloy covers a broad range of high-security hardware for commercial door systems, including mortise cylinders, exit device cylinders, and master key systems at the high-security tier. For commercial Tempe properties with mortise locks or Adams Rite-style door hardware, ASSA Abloy provides high-security options that integrate with existing commercial door prep.
Our high-security locks service covers installation, rekeying, and key duplication management for all four brands, plus compatibility assessment for your existing door hardware.
Residential vs Commercial High-Security Applications in Tempe
The hardware is the same. The installation context and key control requirements differ.
Residential applications in Tempe where high-security is worth the investment: rental properties where tenant turnover creates key control challenges, homes with previous break-in attempts, properties with high-value contents, and any home where the standard rekey cycle isn’t sufficient because the concern is targeted entry rather than unauthorized keys.
For most Tempe homeowners, the realistic upgrade path is a Schlage Primus deadbolt on the primary entry doors — it integrates with standard Schlage door prep, the key control system is straightforward to manage, and the cost is a fraction of a security system installation with meaningfully better physical deterrence than a builder-grade deadbolt. Our lock change service covers the hardware swap, and our lock rekey service handles key consolidation if you’re upgrading multiple entry points.
Commercial applications in Tempe where high-security is a standard requirement rather than an upgrade: medical offices with HIPAA-relevant access control, law offices, financial services locations, retail businesses with significant after-hours inventory exposure, and any commercial property where documented key control is part of a compliance obligation.
For commercial properties, the key control documentation aspect of high-security systems matters as much as the cylinder resistance. A registered Medeco or Mul-T-Lock key system creates an auditable record of who has been issued keys and who has authorization to duplicate them. When a key is reported lost, the restricted blank means an unauthorized copy cannot be in circulation — and rekeying under a new authorization eliminates the lost key’s validity entirely. Our commercial locksmith services cover the full scope of commercial lock installations in Tempe.
Tempe-Specific Factors — How the Climate Affects High-Security Hardware
High-security cylinders are tighter-tolerance instruments than builder-grade hardware, and Tempe’s conditions affect them in specific ways worth knowing before installation.
Thermal expansion. The precision tolerances that make Medeco and Mul-T-Lock cylinders pick-resistant also make them slightly more sensitive to thermal expansion than standard cylinders. A cylinder installed on an exterior door in direct Tempe sun can reach 160°F+ on a summer afternoon. This is within the operational range of properly installed high-security cylinders, but it means installation alignment matters more — a cylinder that’s slightly misaligned at 70°F may bind at 150°F. Our technicians verify smooth operation across the temperature range by testing after installation and before leaving.
Dust infiltration. The fine particulate in Tempe’s desert air affects all cylinders, but high-security cylinders with tighter tolerances require more consistent lubrication maintenance to prevent particulate from causing binding. We use cylinder lubricants appropriate for high-security hardware — not graphite, which works into tight tolerances and attracts particulate — and we advise on a maintenance schedule based on the cylinder brand and the door’s exposure level.
UV degradation of key head plastic. The restricted key blanks for Medeco and Mul-T-Lock use plastic key heads that hold the brand identifier and registration information. Tempe UV degrades these heads faster than in moderate climates. We recommend keeping one key stored indoors as the original and using UV-resistant key covers on daily-carry keys.
| Situation | Recommended Brand | Why |
|---|---|---|
| Residential upgrade — currently running Schlage hardware | Schlage Primus | Integrates with existing Schlage door prep — no modification required, restricted key control added |
| Commercial property — documented key control required | Medeco or Mul-T-Lock | Factory-registered key system with auditable authorization — unauthorized duplication is not possible |
| High-value commercial — maximum drill and pick resistance | Mul-T-Lock | Hardened steel inserts around pin chambers — highest physical attack resistance in the civilian market |
| Commercial mortise or exit device cylinder replacement | ASSA Abloy | High-security cylinders designed for commercial door hardware formats including mortise and rim configurations |
| Rental property — tenant turnover key control | Schlage Primus or Mul-T-Lock | Restricted blanks prevent unauthorized copies — rekey under new authorization when tenant turns over |
| Maximum pick and bump resistance — residential or commercial | Medeco | Dual-axis key requirement engages sidebar — defeats standard pick and bump attacks by design |
Frequently Asked Questions
How much do high-security locks cost in Tempe? +
Can high-security locks be rekeyed if a key is lost? +
Are high-security locks worth it for a Tempe home? +
Will high-security locks work in Tempe’s heat? +
Where can I get high-security keys duplicated in Tempe? +
Can high-security cylinders be installed in my existing door hardware? +
Do high-security locks prevent all break-ins? +
The Right Next Step
High-security hardware in Tempe isn’t a premium purchase for its own sake — it’s a specific answer to a specific problem. If the problem is key control over a managed property, Schlage Primus or Mul-T-Lock provides a documented system that standard hardware cannot replicate. If the problem is cylinder resistance on a commercial property with real after-hours exposure, Medeco or Mul-T-Lock addresses that directly. If the problem is a builder-grade deadbolt on a home where someone has made you uncomfortable about who might have a key, a Schlage Primus upgrade closes that gap at a cost well below what most people expect.
CallOrange Locksmith in Tempe installs Medeco, Schlage Primus, Mul-T-Lock, and ASSA Abloy hardware on residential and commercial properties throughout Tempe and Metro Phoenix. Our technicians are licensed, insured, and bonded, carry high-security hardware on every truck, and complete most installations in a single visit. Founded in 2008, with 17+ years of locksmith experience and a 5-star Google rating from Tempe property owners.
Call (480) 847-2635 to schedule your high-security assessment. We’re available every day from 6:00 AM to 10:00 PM. Visit our contact page for non-urgent scheduling, or see our commercial locksmith services and residential locksmith services for the full scope of what CallOrange covers in Tempe.