Residential Locksmith

Lock Rekeying in Southeastern PA and Northern Delaware

Your locks rekeyed so old keys stop working and new keys open them, across Chester, Delaware and Montgomery counties and northern New Castle County, DE.

  • 3 years in business
  • Open 6 days a week
  • Cars, homes and businesses
Lock cylinder taken apart with its pins in a tray during rekeying

What lock rekeying covers

When you move into a home, someone moves out with a copy, or your keys go missing, you may not know who can get through your doors.

Rekeying changes the small parts inside your existing lock so old copies no longer work and a new one does. The hardware stays on the door, and its appearance and operation remain the same. Rekeying does not repair worn or damaged hardware or make a weak door more secure. If the hardware is in poor condition, replacing it may be the better choice.

You can choose which outside doors to include, from the front entrance to a side or back door. An entrance you leave out will still work with its current set, so consider who has copies for each door. We can also set up included locks to work with one key if their cylinders are compatible. If they are not, replacing some hardware may be necessary to use the same one throughout. Replacement is also an option when you want a different style or features rather than keeping what is already on the door. We work with you to choose the entrances and setup that fit your home.

Signs you need lock rekeying

Moving into a home is a reason to reconsider who has keys, especially if you received a set but do not know how many copies exist.

The same concern comes up when a roommate moves out and you cannot account for every key they had. A lost key matters too, particularly if it was attached to something with your address or disappeared where someone else could pick it up. A spare left outside that is no longer where you put it is another sign that access is uncertain.

Look at each outside door you use or leave locked, including side and basement entrances. If one key opens several doors, a missing copy may give someone access to more than one entrance. Different keys for the front and back doors can also make it hard to keep track of who has access to each one. On the other hand, a key that sticks, turns reluctantly or only works after you jiggle it may point to wear or damage rather than an access problem. Avoid forcing it, because the key could snap inside the lock.

How the work goes

When you call, tell us which outside doors you want included and whether you have a working key for each lock.

Mention any other doors you want us to look at, such as an entry from a garage. You can choose which doors to include rather than rekeying every lock on the property. If you want one key for the selected doors, tell us that too. We will check whether those locks accept a common key and can be keyed alike. If they cannot, you can keep separate keys or consider replacing incompatible hardware.

We examine each selected lock and explain what can be rekeyed and what may need replacement. Rekeying changes the pins inside the cylinder so the old key no longer operates it. The visible hardware is generally kept, though we may remove a knob, lever or deadbolt housing to reach the cylinder and put it back afterward. Once the work is complete, we test the appropriate new key in each selected lock and check that the hardware operates properly. You can decide how many copies you need and who will receive them, while keeping track of any doors that still use a separate key.

  1. You callWhich door and which lock.
  2. A few questionsWhat happens when you use it.
  3. The plan, firstRepair, rekey or replace.
  4. Tested with youKey, latch and bolt.

Lock Rekeying by town

We provide lock rekeying in selected towns in Chester, Delaware and Montgomery counties in Pennsylvania, as well as selected towns in northern New Castle County in Delaware.

We travel to your property to do the work, rather than asking you to bring the locks to us. Our coverage does not include every town in those counties, so a county name alone is not enough to confirm that your address is within our area. Your town and property address give us the information we need to check whether we serve your location.

Lock Rekeying questions

We just moved into a house and received several keys from the previous owner. What does rekeying change?

We change the pins inside the existing cylinders so the previous keys no longer operate them. The visible hardware stays in place, and the new keys work with the changed locks. Rekeying does not tell you who had copies of the previous keys, so it gives you a fresh starting point for managing access.

My roommate moved out with a copy of our key. How should I handle access for everyone else?

We recommend deciding who should receive a new key before making copies. Rekeying makes the previous key unusable on the locks you include, but anyone who needs continued access will need a new one. You can also keep a separate key for a room you do not want everyone in the household to enter.

I have different keys for my front and back doors. Can one key work for both?

We check whether the locks accept the same key shape and have compatible internal parts. If they do, they may be rekeyed to match. If they do not, replacing one lock with a compatible model is an option. You can then carry one key instead of keeping separate keys for those doors.

The lock on my back door is worn and difficult to turn. Is rekeying enough?

We recommend replacing a lock if it is worn or does not operate reliably. Rekeying changes which key works, but it does not restore worn parts or correct a mechanical problem. Replacement also gives you a way to choose different hardware or features, while rekeying keeps the existing appearance and hardware.

I misplaced a house key that also opened the shed. Which doors should I include?

We ask which locks the missing key operated, including those on side entrances and outbuildings. You can include all of them or choose only the ones you want to secure against that missing key. A lock left unchanged will still accept it, so consider what you keep behind each entrance and who needs access.

Need a hand with a lock?

Tell us the town and the problem, and we take it from there.

Call (484) 488-7719
(484) 488-7719