Mortise Lock Repair & Replacement
Port Chester's housing stock tells a story in hardware. Walk down Westchester Avenue or through the side streets off King Street and you will find pre-war multi-families, Victorian-era single-family homes, and early-twentieth-century commercial storefronts — most of them still secured by the same deep-body mortise lock that was installed when the building went up. These mechanisms are elegant, durable, and notoriously tricky to service when something goes wrong. Port Chester Locksmith Services is a 24/7 mobile operation that comes directly to your door anywhere in Port Chester, NY, so you never have to remove a damaged lock body and haul it somewhere for service.
Open 24 hours, 7 days a week · Licensed, bonded & insured

“Our trained and insured technicians carry a full inventory of mortise lock parts, cylinders, and replacement sets in the service vehicle, meaning most repairs and full swaps happen in a single visit. Whether the latchbolt has seized in a century-old brownstone near the waterfront, a vintage Corbin Russwin mortise lock on a Main Street commercial door has shed a cam, or a homeowner on Putnam Avenue wants to modernize with a smart mortise lock that still fits the original pocket, we handle it without the guesswork. Every job begins with an honest assessment and an exact up-front price confirmed before any work starts — no surprises.
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 Port Chester, we reach the Port Chester 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 standard door knob lock?+
A mortise lock is a complete lock mechanism installed inside a pocket cut into the door edge. It houses the latch, deadbolt, and cylinder in one integrated body. A standard door knob lock, by contrast, uses a cylindrical mechanism that passes through a bored hole in the door face. Mortise locks are generally more robust under heavy use, offer a longer bolt throw, and are harder to force — which is why they were the default choice for builders of older Port Chester homes and commercial buildings. The trade-off is that servicing them requires specialized tools and knowledge of the internal cam-and-follower system.
Can a locksmith open a mortise lock during a lockout without damaging the door?+
In the vast majority of residential lockout situations, yes. Our trained technicians prioritize non-destructive entry techniques and, after verifying ownership or occupancy, use methods that leave both the lock and the door intact. The first step is always checking for a spare key with a neighbor or checking accessible secondary entrances. If entry is necessary, our technicians select the least invasive approach for the specific lock model. Destructive entry is a last resort and is discussed with you before any tool is used. We never provide or discuss lock-picking or bypass techniques beyond confirming that professional, legitimate methods are used on calls with verified authorization.
How much does mortise lock repair or replacement cost in Port Chester?+
There is no single figure that applies to every job. The final price depends on the specific lock model — a Baldwin mortise lock set requires different parts than a Corbin Russwin commercial unit — the time of day the call comes in, travel distance, and whether the job is a cylinder swap, a full body replacement, or an electric mortise lock installation with wiring. What we guarantee is that you receive an exact price before any work begins. There are no estimates revised upward after the fact. Call 914-252-3154 and describe your situation; we will give you a clear picture of what is involved.
Do you service smart mortise locks and electric mortise locks for commercial doors?+
Yes. Smart mortise lock models that use Z-Wave, Bluetooth, or Wi-Fi credentials require installation and pairing steps beyond standard mechanical work, and our technicians are experienced with those platforms. For electric mortise lock applications — common on access-controlled commercial doors in Port Chester storefronts and office buildings — we handle both the mechanical installation and the wiring to the access control panel. We carry mortise lock set options rated for exterior commercial door applications and can advise on which platform is compatible with an existing access control system.
My sliding door has a mortise-style lock that is no longer latching. Is that something you can fix on-site?+
Sliding door mortise lock bodies use a narrower profile and a hook-bolt mechanism rather than a standard rectangular latchbolt, but the internal failures are similar: worn cam followers, broken springs, or misaligned strike pockets. Our mobile service vehicle carries hook-bolt replacement bodies and internal parts for the most common sliding door mortise lock configurations found in older Port Chester homes and additions. Most repairs are completed in a single visit. If the pocket itself has been damaged or the door frame has shifted, we assess that on-site and explain the repair path before starting work.
How quickly can a technician reach me in Port Chester for an emergency lockout or urgent mortise lock repair?+
We operate 24 hours a day, seven days a week, with mobile technicians serving Port Chester and the surrounding Westchester County area. Response time depends on current call volume and your exact location within the service area, but we prioritize emergency lockout calls and dispatch immediately. When you call 914-252-3154, our team picks up directly — no answering service — and gives you an honest estimated arrival window. Satisfaction with the service experience matters to us, and we back every job with a commitment to clear communication from the first call through to job completion.
Locked out or need a lock fixed? We are on the way.
Open 24 hours, 7 days a week · Insured, background-checked technicians · Up-front pricing
914-252-3154