Commercial Safe and Lock is a family-owned, family-run locksmithing and security company based in Imperial, Missouri. Charlie Duncan founded the business in 1995 with a simple proposition: show up, do the work right, stand behind it, and treat every client — from the corner credit union to the homeowner across the county — like the relationship matters beyond the invoice. Thirty-one years later, that proposition still holds. The faces have grown up, the technology has changed, and the service area has widened considerably. The standard hasn’t moved.
Patrick Duncan, the current owner, started learning the trade at fifteen, riding along with his father Charlie on service calls, fetching tools, watching, asking questions, and eventually running jobs of his own. There’s no shortcut to that kind of education. You learn how a mortise lock is actually put together by taking a few dozen of them apart. You learn how a commercial safe behaves under stress by sitting with one at 2 AM while a bank manager paces behind you. You learn how to talk to customers by watching your father explain, patiently and without condescension, why the cheap option isn’t really cheap.
That hands-on apprenticeship shaped the company Patrick runs today. We hire technicians with the same mindset — people who are genuinely curious about how mechanisms work, who take pride in leaving a job site cleaner than they found it, and who know the difference between a fix that holds and a fix that merely appears to. Craftsmanship is an old-fashioned word for it, but it’s the right one. The locks, safes, doors, and access systems we install are meant to last, and the work we put into them should last just as long.
Our service list is broad, but it’s organized around a simple principle: if it secures a building, we work on it.
On the commercial side, we serve banks and credit unions (vault service, safe deposit boxes, drive-up equipment, night depositories), retail and office properties (storefront doors, panic hardware, master key systems), industrial facilities (heavy-duty locking, restricted keyways, high-security cylinders), and institutional clients like schools, churches, and municipal buildings. We handle door and frame tear-out and replacement, light construction adjacent to security work, and access control system design and installation — from simple standalone keypads to multi-door networked systems with credentialed entry, audit trails, and remote administration.
On the residential side, we help homeowners upgrade beyond the builder-grade hardware most new homes ship with. High-security keys that can’t be copied at a kiosk. Deadbolts that actually resist a kick. Smart locks that integrate with the rest of your home without creating new vulnerabilities. Full home security systems — alarms, cameras, monitored response — sized and priced to match real households, not upsold into something you don’t need.
And when something goes wrong outside of normal hours, we run a 24-hour emergency line for established commercial clients and, when staffing allows, for homeowners across our service area. The goal isn’t to be the locksmith who races to every midnight call in the metro. The goal is to be the one who picks up when the businesses we’ve looked after for years really need us.
A lot of what we do is invisible to the people who benefit from it. A vault that opens every morning without drama, a storefront that locks securely every night, a key system that grants the right access to the right people and nothing more — these are quiet wins. You don’t notice good security the way you notice a bad paint job or a leaky roof. It just works. And when it works for years on end, that’s the measure of whether the original installation was done right.
We take that seriously. We specify hardware we’d want on our own buildings. We document key systems so successor owners aren’t left guessing. We label panels, run cables cleanly, and leave the site better than we found it. None of this shows up in a photograph. All of it matters.
We stand behind our products and our craftsmanship without hedging. If you’re not fully satisfied with the work we’ve done, tell us, and we’ll make it right — whether that means returning to the site, replacing the hardware, or refunding the portion of the job that didn’t meet expectations. The vast majority of our business comes from referrals and repeat clients, and that track record is only possible because we don’t argue about the rare occasions when something isn’t right. We fix it.
This isn’t marketing language. It’s the same promise Charlie made in 1995 and the one Patrick has carried forward. A handshake is still a real thing in this business, and we’d rather lose a little margin occasionally than lose the trust that took decades to build.
Our shop sits on Warren Road in Imperial, a short drive south of St. Louis along I-55. From there, we serve clients throughout Jefferson County, St. Louis County, St. Louis City, the surrounding suburbs, and — for established commercial accounts — much of the greater metropolitan area, including parts of Illinois. Walk-ins are welcome during business hours for key cutting, rekeying, and small hardware needs. Larger projects get a scheduled site visit and a written proposal. Everything in between gets a phone call and a straight answer.
We’re a family business that’s spent three decades learning how to secure the places that matter to our clients. We treat the work as a craft, the clients as long-term relationships, and our reputation as something earned one job at a time. If you’re looking for a locksmith who’ll show up, do it right, and stand behind it, we’d like to hear from you.
