Commercial Rekey & Master Key
When a Marietta office building on Roswell Road changes tenants, promotes a department head, or simply tightens up after an employee departure, the lock infrastructure has to keep pace with the business. Marietta Fast Locksmith deploys mobile, insured technicians around the clock to rekey office suites, install mortise lock hardware, and architect master-key systems that give the right people access to exactly the right doors — no more, no less. We come directly to your property anywhere in the Marietta area, diagnose your current hardware on-site, and build a key hierarchy that scales with your operation.
Open 24 hours, 7 days a week · Licensed, bonded & insured

A poorly managed key system is a quiet liability. Skeleton keys circulating among former staff, dozens of individual keys that cannot be tracked, doors propped open because employees lost their copies — these are real scenarios we encounter regularly at commercial properties throughout Cobb County. Our approach is methodical: we map your access needs first, select or reuse compatible hardware where possible, and present an exact up-front price before a single pin is touched. Whether you manage a three-suite professional office near the Marietta Square or a multi-floor corporate campus, our commercial locksmith team has the tools and experience to bring your access control into order today.
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 Marietta, we reach the Marietta 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.
More about our work
Everything you need to know about how we help — at a glance.
Commercial Rekey and Master Key Systems: How the Hierarchy Works
A master-key system is not simply one key that opens everything. It is a precisely engineered pin-tumbling architecture in which individual keys operate only their assigned doors, supervisor keys open a defined subset of doors, and a grand master key covers the entire facility. Our technicians design these hierarchies by working through a key-bitting matrix — calculating pin stack combinations so that each level of access is mechanically distinct yet compatible. For an office building near the WellStar Kennestone Hospital corridor, for example, we might configure individual suite keys for each tenant, a property-manager key that opens shared areas like lobbies and utility rooms, and a grand master for the building owner. Every combination is documented and held securely by the client.
Rekeying sits at the heart of this service. Rather than replacing entire lock bodies, our skilled technicians disassemble the cylinder, swap the driver and key pins to a new combination, and reassemble — a process that restores security without the expense of full hardware replacement. Mortise lock cylinders, rim cylinders, interchangeable-core formats, and standard knob or lever cylinders can all be rekeyed and integrated into a unified master-key plan. When hardware is damaged, outdated, or simply incompatible, we carry quality replacement mortise lock bodies and cylinder sets on our mobile service vehicles so the work stays on schedule.
Mortise Lock Installation and Upgrade for Marietta Commercial Properties
The mortise lock is the workhorse of serious commercial door security. Unlike a simple cylindrical knob-and-latch assembly, a mortise lock is set into a mortised pocket in the door edge and contains an integrated deadbolt, latch, and often a lever or knob trim — all in one robust case. For high-traffic commercial doors on Sandy Plains Road storefronts, medical offices, law firms, or warehouse entry points throughout the Marietta area, a properly installed mortise lock delivers far greater resistance to forced entry and far longer service life than lighter residential-grade hardware. Our technicians are experienced with mortise lock brands including Schlage and other widely used commercial-grade lines, and we can retrofit existing door prep or cut a new mortise pocket when upgrading from a cylindrical lockset.
Beyond the security benefit, mortise lock hardware integrates cleanly into master-key systems. Because the cylinder is a separate, interchangeable component within the case, it can be rekeyed or swapped without disturbing the door trim or the mechanical body. This makes future rekeying events — after staff turnover, a lease change, or a security audit — faster and less disruptive to your business day. If your Marietta property still relies on aging door knob locks on interior office doors, upgrading to a mortise lock platform during a master-key project is a practical choice that pays dividends in both security and long-term serviceability.
What the Commercial Locksmith Rekeying Process Looks Like On-Site
When you call (770) 202-1324, our dispatcher gathers the details of your property: the number of doors, the existing hardware types, the access tiers you need, and any time-sensitive driver like an employee termination or a new tenant move-in. A qualified technician is dispatched directly to your location — no need to remove hardware or visit a shop. On arrival, we audit every lock on the job, identify which cylinders are compatible with a master-key system, note any mortise lock bodies or door knob locks that need attention, and map your desired access hierarchy. You receive a confirmed, itemized price before any work begins. There are no surprise charges added after the fact.
The rekeying itself is performed with precision hand tools and, where the door and frame geometry allow, is carried out damage-free — we do not drill or force cylinders that can be serviced conventionally. For larger properties or complex hierarchies, we sequence the work to keep your facility operational, completing one zone at a time so tenants are never locked out during the process. When the job is finished, you receive a documented key chart showing every door, its access level, and the keys that operate it. We can also advise on physical security improvements like door reinforcement, high-security cylinder upgrades, or electronic access integration that complements your new mechanical key system.
Factors That Determine Your Commercial Rekey Quote — and When to Call Us
Every commercial property is different, and pricing reflects that reality. The primary factors our technicians account for when calculating your quote include: the number and type of lock cylinders being rekeyed (standard pin-tumbler, mortise lock, interchangeable-core, or high-security formats each carry different labor requirements); whether new hardware such as mortise lock bodies or door knob lock replacements is needed; the complexity of the master-key hierarchy being designed; the time of day, since after-hours and emergency locksmith calls involve different resource deployment; and travel distance to your Marietta location. We confirm the full price with you before beginning — what we quote is what you pay. Because we operate 24/7, a rekeying project does not have to wait until Monday morning or business hours; if a security event happens Saturday night, our mobile technicians respond the same way they would on a Tuesday afternoon. Reach out any time at (770) 202-1324 and our team will walk through your situation and get a technician moving toward you.
25 Specific Services Our Commercial Locksmith Team Provides
Our mobile commercial locksmith service covers a comprehensive range of needs for Marietta businesses, property managers, and building owners. The specific services we offer include: master-key system design and implementation; grand master and great grand master key hierarchy configuration; commercial mortise lock installation and replacement; mortise lock cylinder rekeying; interchangeable-core (IC) cylinder rekeying and core exchange; standard pin-tumbler cylinder rekeying; high-security cylinder installation (restricted keyway systems); door knob lock rekeying and replacement; lever-handle lock rekeying and replacement; deadbolt installation and rekeying; rim lock and surface-mounted deadbolt service; office suite rekeying after tenant turnover; emergency locksmith response for commercial lockouts; padlock rekeying and keyed-alike padlock setup; file cabinet and desk lock rekeying; mailbox lock replacement for office buildings; push bar and panic hardware inspection and service; door closer adjustment in conjunction with new hardware installation; lock hardware compatibility auditing for master-key integration; key duplication on restricted or proprietary keyways; key control documentation and key-bitting records management; on-site security consultation for Marietta commercial properties; lock hardware upgrade consultation from residential-grade to commercial-grade; after-hours and weekend commercial locksmith dispatch; and damage-free lock servicing wherever the hardware and door condition allow.
Frequently asked questions
Answers to what our customers ask most. Still unsure? Just call.
What are some good locksmiths in Marietta, GA for commercial master-key work?+
When evaluating any commercial locksmith in Marietta, GA, look for technicians who carry verifiable insurance, arrive in marked vehicles, and can explain the master-key bitting process clearly before starting. Ask whether they carry commercial-grade mortise lock inventory on their service vehicles and whether they provide written key-chart documentation after the job. Marietta Fast Locksmith meets all of these standards — our insured, experienced technicians are mobile, available 24/7, and specialize in the kind of structured access-control rekeying that commercial properties actually need. Call (770) 202-1324 to discuss your property's specific requirements.
How much is a locksmith per hour for commercial rekeying in Marietta?+
Commercial locksmith pricing is rarely calculated as a simple hourly rate because the variables differ significantly from job to job. The factors that shape your final quote include the number of cylinders being rekeyed, the lock types involved (mortise lock cylinders, interchangeable-core systems, and door knob locks each require different labor), the complexity of the master-key hierarchy, whether replacement hardware is needed, the time of day, and travel distance to your Marietta location. Rather than quoting a vague per-hour figure that may not reflect your actual job, we assess your specific situation on arrival and give you a confirmed, itemized price before any work begins. There are no hidden additions after the fact.
What proof do I need for a locksmith to rekey my commercial property?+
For any commercial rekeying job, our technicians will ask you to verify your authority over the property. Acceptable documentation typically includes a current lease agreement showing your business name and the property address, a deed or title document for property owners, a property management authorization letter on company letterhead, or a business license showing the address. For rekeying after an employee departure, we may also ask for identification matching the business name on record. This verification process protects you as much as it protects the building's occupants — it ensures that only authorized parties can alter the lock system. Our technicians handle this professionally and without unnecessary delay.
What is a locksmith call-out fee and does it apply to commercial jobs?+
A call-out fee, sometimes called a service or dispatch fee, is a charge that covers the technician's travel to your location and the initial on-site assessment. Because we operate as a mobile locksmith — we come to you rather than requiring you to bring hardware to a shop — there is a dispatch component to every job. For commercial rekeying projects in Marietta, travel distance is one of the factors we account for in your overall quote. We are transparent about all cost components before work begins, so you will know exactly what the call-out element is, what the labor cost is, and what any required parts cost. Nothing is added after the fact.
Is there a mobile locksmith in Marietta, GA available for after-hours commercial emergencies?+
Yes — Marietta Fast Locksmith is a fully mobile locksmith operation serving the Marietta area around the clock, every day of the year. Our technicians travel directly to your commercial property, whether that is a Marietta Square office suite, a retail location on Cobb Parkway, or a multi-tenant building anywhere in Cobb County. After-hours and emergency locksmith calls — including lockouts, urgent rekeying after a security incident, or same-night master-key work following an employee termination — are handled with the same skilled, insured technicians who handle daytime appointments. Call (770) 202-1324 any time and a live dispatcher will confirm your location and get a technician moving.
How often should a commercial property in Marietta rekey its locks?+
Industry security guidance generally recommends rekeying commercial cylinders whenever a key-holding employee leaves the organization, after a lease turnover, following a lost or stolen key, after any unauthorized access incident, and at least once every one to two years as a baseline practice — even when no specific event has occurred. Properties with high staff turnover or multiple tenants, such as co-working spaces or medical office buildings, may need rekeying more frequently. A well-designed master-key system makes these rekeying events faster and less disruptive because cylinders can be serviced individually without rebuilding the entire hierarchy. Our team can also advise whether a shift to interchangeable-core or high-security restricted keyway hardware would reduce your long-term rekeying frequency.