Mortise Locks
Upgrade or replace mortise locks on metal and wooden doors. Ideal for older properties and commercial doors needing strong, long-lasting hardware.
Multilock Locks Los Angeles CA Rekey & Replacement (562)270-0450
Mul-T-Lock Lock Change in Los Angeles offers professional security upgrades for homeowners, landlords, and businesses needing strong, high-security lock solutions. Whether you lost keys, moved into a new house/office, experienced stolen keys, or want to recover from a burglary repair event, choosing Mul-T-Lock hardware gives you enhanced protection beyond standard residential locks. Mul-T-Lock systems are designed for solidity, pick and drill resistance, and long-term durability—ideal for Los Angeles properties with elevated security needs. Our mobile locksmith team comes to you to install or rekey Mul-T-Lock deadbolts, mortise cylinders, or high-security cores, making it easy and convenient to upgrade your property security.
Every property is unique, and security needs vary depending on location, usage, and risk. Mul-T-Lock caters to a wide range of security demands—from residential entry doors to commercial offices and multi-unit buildings. We help you choose hardware that fits your doors, budget, and security expectations. Whether you prefer traditional deadbolts, high-security cylinders, or restricted-key systems, our technicians ensure precise installation and proper operation throughout Los Angeles.
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Why Using Mul-T-Lock
Mul-T-Lock is widely regarded as a premium manufacturer of high-security locks with patented key systems, hardened steel components, and core designs that resist picking, drilling, and unauthorized duplication. For Los Angeles homes and businesses concerned about burglary or unauthorized entry, Mul-T-Lock provides peace of mind through strong mechanical engineering and restricted key control. Their locks are often used in commercial, institutional, and multi-family properties—settings where standard deadbolts don’t offer sufficient protection. If you want more than basic hardware, Mul-T-Lock is a reliable upgrade path.
One major advantage of Mul-T-Lock is its key control system. Their patented keys and restricted keyways make it difficult for unauthorized individuals to duplicate keys, even at big-box hardware stores. This significantly reduces the risk associated with lost or stolen keys, especially when you don’t know who may still have old copies. It's a strong benefit for landlords, property managers, and homeowners who want secure, controlled access.
Mul-T-Lock cylinders and deadbolts often feature hardened cores, anti-drill plates, and anti-bump designs. These features enhance resistance against forced entry tools such as drills, hammers, and bump keys. For exterior doors facing the street, garages, or side entrances—common in Los Angeles neighborhoods—such robust locks significantly increase protection compared with standard hardware-store locks. They provide long-term durability even under repeated use.
On the downside, Mul-T-Lock hardware costs more upfront than standard locks. Installation and rekeying require a trained locksmith, and standard DIY kits can't properly accommodate special cylinders or restricted-key systems. However, for many users in Los Angeles—especially those with high-value property or security concerns—the extra cost is justified by enhanced safety and controlled access over time.
Mul-T-Lock Rekey & Key Control
Rekeying a Mul-T-Lock cylinder is a secure way to reset access without replacing complete hardware. Because Mul-T-Lock relies on complex internal mechanisms and restricted keyways, rekeying must be done by a qualified locksmith. We offer on-site rekeying to ensure the cylinder is serviced correctly and the lock operates smoothly. This is ideal when keys are lost, tenants move out, or after staff changes in a business.
The restricted key control system ensures that key duplication requires authorization, preventing unauthorized copies. That adds a layer of security for owners of residential buildings, rental units, or offices in Los Angeles. Rekeying with Mul-T-Lock maintains high security while preserving your existing hardware. For landlords or property managers, it’s a smart way to keep access secure without incurring full hardware replacement costs.
Smart / High-Security Locks
Mul-T-Lock also offers high-security and electronic lock solutions, combining their strong mechanical core with modern access control options. These locks are ideal for clients in Los Angeles who want more than just a sturdy deadbolt—maybe smart keycards, restricted access, or audit-capable entry systems for businesses or multi-unit properties. With Mul-T-Lock, you can upgrade to advanced lock technology while keeping the benefit of hardened, high-security cylinders.
Standard high-security Mul-T-Lock cylinders include hardened steel bolts, anti-drill protection, and reinforced strike plates that resist forced entry. For exterior doors, gates, or storage rooms with higher risk, these provide significant security improvements. They offer peace of mind knowing your locks are built to industry-leading standards.
For apartments, offices, or rental buildings, Mul-T-Lock’s programmable and electronic-ready locks can be integrated into master key systems or controlled-access setups. This means you can manage who has entry to which door—ideal for property managers, landlords, or business owners. We help design and install systems that match your security requirements and budget.
Do It Yourself VS Professional Locksmith
Mul-T-Lock hardware is not a typical DIY lock. Because of its complex internal design, restricted keyway, and security features, improper installation or rekeying can compromise its full security potential. If installed incorrectly, the lock may malfunction, stick, or fail under stress, defeating the purpose of choosing high-security hardware. DIY attempts also often void manufacturer warranties or create alignment issues on older doors.
By hiring a professional locksmith, you ensure Mul-T-Lock cylinders, deadbolts, or high-security cores are installed to specification, aligned properly, and fully tested. Our Los Angeles-based locksmiths have experience working with restricted-key systems, specialized tools, and proper installation techniques. We also perform door/frame adjustments if needed and offer a 6-month warranty on parts and labor—giving you reliable protection and confidence in the installation.
Common Mul-T-Lock Products We Work With
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Mul-T-Lock Hercular Deadbolt
The Hercular Deadbolt combines a hardened steel bolt, anti-drill reinforcement, and restricted-key cylinder—a good choice for exterior doors needing strong, reliable protection. Learn more at Mul-T-Lock Hercular Deadbolt.
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Mul-T-Lock MT5+ High-Security Cylinder
The MT5+ cylinder offers patented key control, pick and drill resistance, and compatibility with master-key systems—ideal for residential gates or multi-unit buildings. See details at Mul-T-Lock MT5+ Cylinder.
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Mul-T-Lock Interactive+ Deadbolt
Interactive+ Deadbolt adds advanced pin-tumbler mechanics, anti-bump protection, and strong bolt action for homeowners seeking upgraded security without going full commercial-grade. More info at Mul-T-Lock Interactive+ Deadbolt.
How Much Does a Mul-T-Lock Service Cost?
Because Mul-T-Lock hardware provides higher security than standard locks, costs are higher than basic lock change services—but so is the protection. Pricing depends on lock type (standard deadbolt, high-security cylinder, or electronic-ready hardware), door condition, and installation complexity. Below is a sample pricing table for Mul-T-Lock change and rekey services in Los Angeles. A final quote will always be provided after on-site inspection.
| Service type | Price |
| Service call | $29 |
| Residential Mul-T-Lock rekey / cylinder re-pin | $55 – $110 |
| Residential Mul-T-Lock deadbolt change | $160 – $300 + hardware |
| Commercial Mul-T-Lock rekey / master-key setup | $80 – $150 |
| Commercial Mul-T-Lock lock change | $220 – $400 + hardware |
| High-security cylinder upgrade | $120 – $220 |
| Mul-T-Lock smart or electronic-ready installation | $200 – $350 |
| Electronic-ready install + hardware | $350 – $600 |
All prices are approximate. Final cost depends on door condition, frame reinforcement needs, and the specific Mul-T-Lock model chosen. Doors with old frames, misalignment, or custom requirements may incur additional labor. We always provide a detailed quote before starting any work so you know exactly what you’re paying. Transparency and fairness are part of our commitment.
Why Choosing Lock Change Los Angeles
Lock Change Los Angeles has built a reputation for reliable, high-quality locksmith services involving advanced lock brands such as Mul-T-Lock. With over a decade of experience in installing, rekeying, and maintaining deadbolts, high-security cylinders, and smart lock systems throughout the city, we bring expertise and professionalism to every job. Our customers appreciate clear communication, fair pricing, and our commitment to their security needs.
We are fully licensed, bonded, and insured and offer same-day mobile locksmith services across Los Angeles and nearby areas. Our vans carry a wide range of hardware—including Mul-T-Lock cylinders, deadbolts, and compatible accessories—so many jobs are completed in a single visit. We back all work with a 6-month warranty on parts and labor, giving you confidence and peace of mind in your security investment.
Frequently Asked Questions
Are Mul-T-Lock systems really more secure than ordinary locks?
Yes. Mul-T-Lock uses patented keyways, hardened steel components, anti-drill plates, and complex internal mechanisms that resist picking, drilling, and bumping. They offer much stronger resistance than typical residential hardware. For exterior doors, gates, or commercial entries, this added security can significantly reduce break-in risk. They are widely used in high-security applications worldwide.
Can Mul-T-Lock keys be duplicated at any hardware store?
No. Mul-T-Lock keys are patented and often require authorization or registered blanks for duplication. Unauthorized copying is difficult, which improves key control compared to standard locks. This is a major benefit when you want to ensure only trusted individuals can make new key copies. We manage key duplication and control for our Los Angeles customers.
Is rekeying Mul-T-Lock as safe as replacing it?
Yes, when done correctly by a trained locksmith, rekeying preserves the security strength of the lock. We change internal pinning, ensure proper cylinder function, and retain the hardened components. This makes rekeying a cost-effective and secure way to reset access after lost keys or tenant changes. We always verify smooth operation before finishing the job.
Do Mul-T-Lock deadbolts suit residential doors?
Yes. While often used in commercial applications, many Mul-T-Lock deadbolts and cylinders are suitable for residential doors—especially for homeowners seeking stronger security than standard locks. They provide peace of mind, better protection, and long lifespan. We help match the right model to your door and frame.
Are Mul-T-Lock installations complicated?
Some models, especially high-security cylinders or electronic-ready hardware, require professional installation to ensure proper alignment, bolt engagement, and key control. DIY installations often fail to meet manufacturer standards and can reduce effectiveness. We recommend professional locksmith service to get the full benefit of Mul-T-Lock hardware. Our team is trained for all required configurations.
How often should Mul-T-Lock hardware be serviced?
Mul-T-Lock hardware is built for durability, but periodic checks help keep it functioning smoothly—especially on doors used frequently. We recommend inspection and light maintenance at least once every 2–3 years. For high-use commercial doors, annual checks are ideal. We offer maintenance and service calls as needed in Los Angeles.
Can Mul-T-Lock work with master key systems?
Yes. Mul-T-Lock supports master key and keyed-alike configurations, which is useful for property managers, offices, or rental buildings. We can design a master key plan or a keyed-alike system based on your needs. This offers both convenience and controlled access. We handle the planning and installation.
What happens if I lose a Mul-T-Lock key?
If you lose a Mul-T-Lock key, you can request a new key from an authorized dealer or locksmith—typically requiring proof of ownership or key authorization card. For maximum security, some owners choose to rekey the cylinder, especially if they suspect unauthorized duplication. We offer rekey services to reset access when keys are lost or compromised. Your security remains our priority.
Does Mul-T-Lock offer electronic or smart lock options?
Yes. Mul-T-Lock produces cylinders and hardware compatible with electronic and access-control systems, often used in commercial buildings, gated properties, and multi-unit facilities. These allow integration with card readers, keypad systems, or smart-home devices, depending on your setup. We can help you choose and install the right Mul-T-Lock electronic or smart-ready hardware for your property.
How long does installation take?
Installation time depends on the lock type and door condition. A standard deadbolt or cylinder change usually takes 20–45 minutes. High-security cylinders, master-key systems, or electronic-ready hardware may take longer due to extra steps and calibration. We strive to complete most jobs in one visit. Our mobile team covers all of Los Angeles and nearby areas.
Conclusion
Mul-T-Lock lock change and rekey services offer Los Angeles property owners and businesses a strong upgrade path when standard locks are not enough. From hardened deadbolts and restricted-key cylinders to smart-ready and commercial-grade systems, Mul-T-Lock supplies serious security options for demanding applications. We serve Los Angeles and surrounding cities including Glendale, Pasadena, Burbank, Culver City, Inglewood, and Santa Monica. Common zip codes we cover include 90012, 90026, 90036, 90064, 90066, and 90232.
If you’re ready to improve your security, replace outdated locks, or install a professional-grade Mul-T-Lock system, Lock Change Los Angeles is ready to help. We offer clear pricing, fast mobile service, and installations backed by a 6-month warranty on parts and labor. Contact us today to get a quote or schedule a visit — your security deserves the best protection.