Mortise Lock Repair & Replacement
Mortise locks are among the most mechanically sophisticated door hardware systems ever designed — and in a town like London, OH, where you'll find everything from century-old craftsman homes near the Madison County Courthouse to newer residential developments off US-42, these locks show up in a wide variety of properties. Whether you're dealing with a stiff, worn-out lock body inside an antique exterior door or a recently installed Baldwin mortise lock set that's misfiring its latch, Madison County Locksmith has the hands-on experience to diagnose and fix the problem correctly the first time.
Open 24 hours, 7 days a week · Licensed, bonded & insured

“We're a fully mobile, 24/7 locksmith operation — meaning our trained, insured technicians come directly to your door in London and the surrounding Madison County area. We don't run a shop you have to drive to; we bring the tools, parts, and expertise to you. Whether you need a mortise lock cylinder rekeyed, a complete lock body replaced, or an older mortise lock set on an exterior door upgraded to a modern or smart mortise lock platform, we handle all of it on-site with damage-free techniques wherever the hardware allows.
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 London, we reach the London 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.
Frequently asked questions
What is a mortise lock and how is it different from a regular deadbolt?
A mortise lock is a complete lock mechanism — typically including both a spring latch and a deadbolt — housed in a single metal case that fits inside a deep rectangular pocket cut into the door's edge. A standard deadbolt, by contrast, sits closer to the door's surface in a bored cylindrical hole. Mortise locks are mechanically more complex, generally more robust when properly maintained, and are common on older homes, commercial buildings, and high-security residential applications. They're also more involved to service, which is why having an experienced technician handle the work matters.
Can a mortise lock be repaired without replacing the whole lock body?
Yes, in many cases — and that's always our first assessment on a service call. Common repairable issues include broken internal springs, worn cams, seized or damaged cylinders, stripped tailpieces, and fatigued latches. Brands like Corbin Russwin use modular internal components that can often be replaced individually. Full lock body replacement is necessary when the case itself is cracked, when the internal geometry is too worn for reliable function, or when a significant upgrade (such as adding smart or electric mortise lock capability) is the goal. We'll tell you which situation you're in before any work starts.
How much does mortise lock repair or replacement cost in London, OH?
We don't publish set prices because the actual cost depends on several variables: the lock brand and body type, whether parts are in stock on our truck or need to be sourced, the complexity of the installation (a sliding door mortise lock differs from a full exterior door mortise lock set), time of day, and travel distance within Madison County. What we always do is provide an exact confirmed price before beginning any work — no surprise charges. Call (740) 619-2988 and our team can give you a clearer picture based on your specific situation.
Do you service smart mortise locks and electric mortise locks?
Yes. Smart mortise lock platforms — including Bluetooth, Wi-Fi, and Z-Wave enabled bodies — require proper installation of the lock case, cylinder, and pairing of the electronic credential system. Electric mortise locks used in commercial access control setups add a solenoid or motor mechanism and require precise alignment with the door frame's electrical contacts. Our technicians are experienced with both residential smart lock integration and commercial electric mortise lock service. If you're upgrading an older system in a London office building or a multi-unit rental property, we can assess compatibility and handle the full installation.
What should I do if my mortise lock has seized and I'm locked out?
First, check whether any other entry point to the property is accessible — a rear door, a window you can safely open, or a trusted neighbor or property manager who holds a spare key. If none of those options are available and you're the verified owner or authorized occupant, call (740) 619-2988 immediately. Our mobile technicians are available 24/7 and will come to your London-area location to resolve the lockout using damage-free methods wherever the hardware allows. Do not attempt to force the lock yourself — a seized mortise lock can be permanently damaged by incorrect force, making the eventual repair significantly more involved.
Can you copy keys for mortise locks at your Walmart kiosk?
Our key-copy kiosk inside Walmart in London can duplicate many standard mortise lock keys, including common residential and light commercial key blanks. However, some high-security mortise lock cylinders use restricted or patented key profiles that require a technician rather than a kiosk copy. If you're unsure whether your key can be duplicated at the kiosk, bring it in and we can assess it — or call (740) 619-2988 and describe the lock brand and cylinder type, and we'll let you know the best path forward.