Larchmont Manor Locksmith: Rekeying Older Larchmont Houses

If you live in Larchmont Manor, near Manor Park or on the streets around Flint Park in Larchmont, the most useful lock job is usually rekeying every outside door to one new key. These houses have changed hands several times, and their keys have been copied for contractors, sitters, cleaners and neighbours for decades, so nobody can say how many are still out there. Rekeying changes the inside of each cylinder so the old keys stop working, while the locks, knobs and trim stay on the door. Rekeying is one of the services Larchmont Locksmith NY offers, and a Larchmont Manor locksmith call is a local one for us.

Why keys travel in Larchmont Manor and Flint Park houses

A house built generations ago has had a lot of people through its front door. Every owner made copies. Every renovation added a contractor with a key. A dog walker, a cleaner and the neighbour who waters the plants each had one at some point, and some of those keys were never handed back.

When a house in Larchmont Manor or by Flint Park sells, the closing usually comes with a small envelope of keys. That envelope tells you how many keys the seller found in a kitchen drawer. It says nothing about the ones on old key rings around the county.

The same goes for long-time owners. If you have lived in the house twenty years and cannot list who holds a key today, you are in the same position as a new buyer.

What rekeying does, and what it leaves alone

A standard pin tumbler cylinder has a set of small pins that sit at different heights. The right key lifts each pin to the exact line where the plug can turn. Rekeying means taking the cylinder apart and swapping those pins for a new set that matches a new key.

What changes:

• The old keys no longer turn the lock.
• You get fresh keys, cut to the new pins.
• Doors that share a brand and keyway can all be set to one key.

What stays the same:

• The lock body, the knob or lever, and the deadbolt.
• The holes in the door and the finish you picked to match the house.

For most older Larchmont houses that is the right trade. The hardware is often good and suits the door, and the only problem is who else can open it. Our lock rekeying service covers the job door by door, from the front entry to the basement.

Old mortise locks in Larchmont Manor

Many houses in Larchmont Manor still have mortise locks: a lock body set into a pocket cut in the edge of the door, with a cylinder screwed into the front. Those cylinders are usually pin tumblers too, and they can be rekeyed like any other.

The exception is the old bit-key lock, the kind with a hollow keyhole and a key that looks like it belongs to a cellar door. Those locks work on levers, not pins, and changing which key opens them is a different and more limited job. On a front door they are also weaker than a modern deadbolt. A common answer is to keep the original lock for the latch and the look, and add a proper deadbolt above it on a new key. Our guide to fitting a deadbolt in an older Larchmont door covers bolt throw, strike plates and the extra care old wood needs.

If an old mortise lock sticks, drags or will not latch, that is a repair question before it is a key question. The same kind of old hardware turns up in Bronxville's Lawrence Park, and our post on repairing old mortise locks in Bronxville explains how most of them can be fixed while keeping the original plates and knobs.

Which doors to include

The front door is the obvious one. The others are where old keys tend to linger. Go round the house and count:

• Front and back doors. Both, every time.
• The side or kitchen door. Often the door the family actually uses, and the one most copies were made for.
• The basement door. Older houses often have a separate outside entry with its own lock.
• The door from an attached garage into the house. If a garage remote or keypad code has ever been shared, this lock matters.
• A detached garage or shed. Worth including if it holds tools or bikes.
• A mudroom or porch door with its own lock.

Write down the brand stamped on each lock face. If they are all the same brand and keyway, they can usually be set to one key. If you have a mix (one brand on the front, another on the back), you may need one new cylinder so everything can share a key. A locksmith can tell you on site which locks will take a common key and which will not.

One key for the whole house

Rekeying every outside door to a single key is the part people tend to like most. One key on the ring, one key to give a sitter, one key to get back when they are done.

A few habits keep it that way:

• Make only the copies you need, and know where each one is.
• Do not hide a spare under the mat or in the planter by the steps. Everyone checks there first.
• If a copy goes missing, rekey again. It is the same job as the first time.
• Keep track of keypad codes too, if you have a smart lock or a garage keypad. A code is a key that never needs to be handed back, so change it when someone no longer needs it.

A Larchmont locksmith who lives here

Larchmont Locksmith NY was founded in 2025 and works in twelve towns across southern Westchester. Larchmont is the home base: two of the three technicians live in the village, so Larchmont Manor, the streets near Chatsworth Avenue and Larchmont Avenue, and the blocks around Flint Park are close to home. New Rochelle and Mamaroneck border the village, and the rest of the Sound Shore is a short drive. The Larchmont locksmith page has the full picture of what we do in the village, from lockouts to new deadbolts.

You can call any hour. Rekeying is rarely an emergency, so most people book it for a time that suits them. If you have just lost a key, though, it is worth doing the same day.

Frequently asked questions

Is there a locksmith near Larchmont Manor in Larchmont?

Yes. Two of Larchmont Locksmith NY's three technicians live in Larchmont, so Larchmont Manor, Manor Park and the streets around Flint Park are local calls. The service runs 24/7.

Can old mortise locks in a Flint Park house be rekeyed?

Most can. If the lock has a modern pin tumbler cylinder screwed into the front, that cylinder is rekeyed like any other. Old bit-key mortise locks work differently, and the usual answer for those is a new deadbolt above them on the new key.

How many keys should I keep after rekeying?

As few as you can manage. One per adult in the house, one spare kept somewhere sensible, and one for anyone who truly needs regular access. Write the list down so you know whose key to ask for back.

Is rekeying cheaper than replacing the locks?

Usually, because the hardware stays on the door and only the pins change. Service starts at $125, and the total depends on how many cylinders there are and what kind they are. Ask for the full price before work starts.

To rekey a house in Larchmont Manor, Manor Park or near Flint Park, call Larchmont Locksmith NY at (914) 255-6611.