High-Security Lock Installation
When a Bronx landlord on Willis Avenue upgrades a multi-unit building's entry doors, or a homeowner near Yankee Stadium wants to finally stop worrying about their front deadbolt, the conversation almost always turns to two names: Medeco and Mul-T-Lock. These high-security cylinder systems aren't marketing hype — they're the gold standard for pick resistance, drill resistance, and key control, and they're what Mott Haven Locksmith Bronx installs every day across The Bronx. Our trained, insured technicians come directly to your address — no drop-off, no waiting — and handle everything from precise cylinder measuring to final function testing, all without causing unnecessary damage to your door hardware.
Open 24 hours, 7 days a week · Licensed, bonded & insured
Getting a high-security lock installation right the first time depends on more than just the hardware in the box. Door prep, backset alignment, strike-plate reinforcement, and cylinder fit all have to work together. A cylinder that's even slightly misaligned will wear prematurely and, worse, leave a gap that undermines the very protection you paid for. That's why our mobile locksmith team carries the tools and the experience to assess your specific Bronx entry door — steel, wood, aluminum storefront, or hollow-core — and match it with the right Medeco or Mul-T-Lock configuration before a single screw is turned.
What we do
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in The Bronx, we reach the The Bronx area in well under an hour.
Insured & background-checked
Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
Why Medeco and Mul-T-Lock Cylinders Are the Right Choice for Bronx Entry Doors
Medeco cylinders use a patented combination of rotating and elevated pin tumblers that makes conventional picking and bumping extremely difficult. Mul-T-Lock's telescoping pin-within-a-pin design adds a second layer of resistance at every pin chamber. Both systems also feature restricted key blanks — meaning keys cannot be duplicated at a corner hardware store without proper authorization. In a dense urban environment like The Bronx, where apartment buildings, corner bodegas, medical offices, and private homes share the same block, key control is as important as the cylinder itself. If a key walks out with a former tenant or an ex-employee, a high-security system lets you re-key or add an authorization card to the record instead of scrambling for a full hardware replacement.
Both brands are also rated against drill attacks, a concern that comes up more than people expect on reinforced steel doors common to Mott Haven, Hunts Point, and Fordham-area commercial properties. Hardened steel inserts within the cylinder body deflect standard drill bits, buying critical time and, in most attempted break-ins, causing the intruder to abandon the effort entirely. Paired with a properly installed heavy-duty strike plate and reinforced door frame — services our team provides alongside every door lock installation — the result is a layered barrier that goes well beyond what a standard Grade 3 deadbolt offers.
Our High-Security Lock Installation Process: What Happens at Your Door
When you call 718-679-9884, a trained technician is dispatched directly to your Bronx address — apartment lobby, private house, storefront, or office suite. The first step is always a door assessment: we measure the existing prep (backset, cross bore, door thickness), inspect the frame and strike situation, and confirm that the selected Medeco or Mul-T-Lock cylinder will seat correctly. If there's an existing mortise lock, rim cylinder, or knob set that needs to be removed first, we handle that as part of the process rather than treating it as an extra complication. Our goal is a damage-free installation wherever the door condition allows it.
Once the cylinder is fitted and the cam or tailpiece is adjusted to the lock body, we cycle the lock through full throw and retract sequences multiple times under load to confirm smooth operation. Keys are cut on-site using our mobile cutting equipment, and every key is test-fitted before we leave. For deadbolt lock installation jobs that also involve a strike plate upgrade, we set the strike into the door jamb with three-inch screws that anchor into the structural framing — not just the door casing — which dramatically increases kick-in resistance. Before any work begins, we confirm an exact up-front price so there are no surprises; the factors that shape that quote include the lock model and cylinder type, any additional hardware needed, the time of day, and travel distance to your location.
Commercial Lock Installation: Storefronts, Office Suites, and Multi-Unit Buildings
Commercial lock installation in The Bronx covers a wide range of door types, and Medeco and Mul-T-Lock both manufacture cylinders designed for commercial mortise bodies, rim deadbolts, padlocks, and interchangeable core systems. Grand Concourse office buildings, retail storefronts along Third Avenue, and warehouse facilities near the Hunts Point Market all have different security profiles, and our technicians are experienced enough to recognize when a single high-security deadbolt is sufficient versus when a full master-key system with restricted keyways is the right call. Master-keying lets a building manager open every unit with one key while individual tenants retain exclusive access to their own — a practical necessity in multi-family residential buildings that's almost impossible to achieve safely with off-the-shelf hardware.
We also handle commercial keypad door lock installation for businesses that want to eliminate physical keys entirely or layer electronic access on top of a high-security mechanical cylinder. Combining a Mul-T-Lock cylinder with an electrified access control component gives you audit-trail capability — you can see exactly when a door was opened — without sacrificing the drill and pick resistance of the mechanical core. If you're managing a building with multiple access points in The Bronx and want to discuss an integrated solution, call 718-679-9884 and we'll walk through the options at no obligation.
Serving The Bronx Around the Clock: Mobile, Trained, and Ready
Mott Haven Locksmith Bronx operates 24/7 because security needs don't follow a 9-to-5 schedule. A landlord finishing a unit turnover at 11 p.m., a property manager dealing with a broken cylinder after a weekend attempted break-in, or a homeowner who just moved in near Pelham Bay and wants the locks changed before the first night — all of these are calls we take and respond to the same way, any hour of the day or night. Our technicians are insured and have hands-on experience with the specific door hardware common to Bronx housing stock, from pre-war cast-iron door frames in Mott Haven to newer aluminum storefronts along Westchester Avenue. Because we're fully mobile, our lock installation service comes to you — you don't need to remove hardware or transport anything.
Choosing the right locksmith for a high-security upgrade matters. Medeco and Mul-T-Lock cylinders are precision components, and an improper installation — a cylinder that sits too proud of the face plate, a cam that contacts the bolt housing on the return stroke, or a strike plate shimmed rather than mortised — will compromise both performance and longevity. Our team carries the correct tools for each brand's specific installation requirements, and we stand behind our work after we leave the job. Whether it's a single deadbolt on a Bronx apartment door or a complete re-keying of a commercial property, the standard of workmanship stays the same.
Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
What makes Medeco and Mul-T-Lock cylinders better than standard deadbolts for a Bronx home?+
Standard deadbolts use simple pin-tumbler cylinders that can be vulnerable to picking, bumping, and key duplication at any hardware store. Medeco adds rotating pins and angled cuts that defeat conventional picking tools, while Mul-T-Lock uses a telescoping pin-within-a-pin design that requires a key to simultaneously operate two independent pin stacks. Both also use restricted keyways, meaning unauthorized key copies can't be made without documented authorization. In a dense urban environment like The Bronx, where buildings are close together and high foot traffic is the norm, those differences translate directly to measurable security improvements.
Can you install a high-security cylinder on my existing door without replacing the entire lock body?+
In most cases, yes. Medeco and Mul-T-Lock both manufacture cylinders in standard formats — including single cylinder, double cylinder, and mortise — that drop into existing lock bodies from major hardware manufacturers. Our technician will assess your current door prep and lock body during the initial visit and confirm compatibility before beginning work. If the existing lock body is worn, damaged, or too low-grade to pair meaningfully with a high-security cylinder, we'll explain why and give you the option to upgrade the full assembly.
How does your door lock installation service handle pricing?+
We never quote blind. The final price depends on several factors: the specific Medeco or Mul-T-Lock model selected, whether additional hardware such as a reinforced strike plate or door reinforcement kit is needed, the time of day (overnight and holiday calls have different logistics), and travel distance to your location in The Bronx. Before any work begins, your technician confirms an exact price and gets your approval — there are no surprise charges on the final bill.
Do you offer smart lock installation alongside high-security cylinders?+
Yes. We handle smart lock installation and can integrate electronic access control components with high-security mechanical cylinders. For example, a Mul-T-Lock cylinder can be paired with an electrified mortise body or a smart lock installation near me request for a connected keypad or app-controlled unit, giving you both the mechanical pick and drill resistance of the high-security cylinder and the convenience of keyless or remote access. This combination is particularly popular with Bronx landlords and small business owners who want to track door access without sacrificing physical security.
Is your locksmith service available for emergency calls late at night in The Bronx?+
Absolutely. Mott Haven Locksmith Bronx operates 24 hours a day, 7 days a week, including holidays. Whether you need a lock changed after a late-night incident on Courtlandt Avenue or a cylinder replaced before the morning shift at a Hunts Point warehouse, you can reach us any time at 718-679-9884. Our mobile technicians are dispatched directly to your address, so there's no delay waiting for a shop to open.
Can you re-key a Medeco or Mul-T-Lock cylinder if a key has gone missing?+
Re-keying high-security cylinders is more involved than re-keying a standard lock because the restricted keyway system limits who can legally cut replacement keys. Our trained technicians carry the proper tools and authorized key blanks for both Medeco and Mul-T-Lock systems, so we can re-key your cylinder on-site without replacing the entire hardware assembly. This is one of the most cost-effective ways to restore key control after a tenant move-out, a lost key, or any situation where you're uncertain who has a copy.