Lock planning after a household change
When a roommate leaves, a relationship ends or a family changes shape, the question of who still has a key often goes unasked. This guide explains how to think about rekeying, codes and access calmly and in general terms.

Why locks deserve a place in your planning
A household change is usually emotional and busy. There are belongings to sort, accounts to separate, and conversations that are difficult to have. Locks rarely make the list, because they feel like a detail. But the keys, codes and apps that opened your door yesterday still work today, and they will go on working unless someone changes them.
That is not an accusation about anyone. Most people who move out do so peacefully and have no wish to return uninvited. Still, a key is a form of permission, and permissions should match your current situation. If the people who live in a home change, the list of who can enter should change with it.
Planning for locks also brings a practical benefit: it marks a clear start to the new arrangement. A rekeyed door, a fresh code and a fresh set of keys tell everyone in the household, including you, that the old arrangement is over and a new one has begun. Many people find that small ritual surprisingly helpful.
There is a security reason as well as an emotional one. Keys get copied. A key handed to a roommate may have been duplicated once for a partner and once for a friend, and nobody keeps track. Copies of copies have a way of ending up in drawers and bags. Rekeying is the only dependable way to cancel keys you cannot count, because it makes every older copy useless at once, regardless of where it is.
Inventory every way into your home
Start by listing every way into the home and who holds it. Think beyond the front door key. Include the back door, the sliding door, the garage entry, the mailbox, the storage unit, the building fob, the gate remote, the keypad code, the smart lock app and the spare key hidden outside. Add copies you may have forgotten, such as the one given to a neighbor or a relative.
Then list the vehicles. Car keys and fobs are often shared in a household, and a shared fob may sit on a ring that also has house keys. If a vehicle is changing hands or staying with one person, consider what that means for spare keys and the ownership paperwork. Technicians ask for registration or title and ID for vehicle work.
Finally, list the people. Next to each way in, write who has it: you, the person leaving, a family member, a cleaner, a dog walker, a friend. This list shows you at a glance how many copies exist. It is common to find that a door has more keys in circulation than anyone remembered.
Take a walk around the outside of the home as well. Look at windows, sliding doors, gates and side entrances that may have their own locks. In Miami Dade many homes have a patio door, a lanai door or a garage side door that is used daily by the household but has a different lock from the front door. A thorough inventory includes all of them, so none is left on the old arrangement by accident.
- Front, back, sliding and garage doors.
- Mailbox, storage and gate or building access.
- Keypad codes and smart lock app accounts.
- Spare keys left with neighbors, relatives or workers.
- Vehicle keys and fobs.
Rekeying versus changing codes versus new locks
There are three ways to refresh access, and which one fits depends on your locks. Rekeying changes the inside of a pin tumbler cylinder so that the old keys no longer work. New keys are cut for the same lock body. It is a practical choice when the hardware is in good condition and you want to keep it. Our page on lock rekeying describes the service.
Changing codes is the simplest option for keypad locks and smart locks. You remove the old codes and set new ones, and you check the app for accounts that still have access. Our guide on smart lock security basics explains habits that keep digital access tidy. A physical backup key may still exist, so remember to deal with that as well.
Replacing the lock makes sense when the hardware is worn, damaged or poor quality, or when you want an upgrade. See the comparison of rekeying and a new lock set and the guide to rekey versus replace locks. A technician can look at the doors and explain what fits.
One more point on choosing: think about how many doors you want on the same key. Many households prefer a single key for the front, back and garage entry, so that nobody carries a heavy ring. A locksmith can set the locks to match, which is called keyed alike. If some doors, such as a home office or storage room, should stay separate, say so. The plan can fit the way the household actually lives.
Roommates and shared rentals
If you rent and share the home with roommates, the first step is to read your lease. Many leases say who may change the locks, whether the landlord must be told, and who holds copies. Some give the landlord control of every key, while others let tenants make changes with permission. Ask your landlord or property manager before you do anything.
Roommate situations are complicated by the fact that several people may be named on the lease while only some remain in the home. A person who is still on the lease may have a right to access that you cannot simply remove. If you are unsure of your rights, ask your landlord, a tenant organization or a legal professional. This page is general guidance only and does not give legal advice.
In practice, many roommate changes are friendly and simple. The person leaving returns the keys, the remaining tenants ask the landlord to approve a rekey, and everyone moves on. Our guide on renter lock questions covers what renters commonly ask, including who pays and who decides.
When a partner or spouse moves out
When a partner or spouse leaves a shared home, the situation can be more sensitive. Ownership, leases and legal arrangements all play a role, and a locksmith is not the right person to decide who may enter a home. A responsible technician will ask who you are, what your connection to the property is, and whether you have the right to change the lock.
If there are legal documents, such as a lease, a deed, an agreement or a court order, keep them handy. Ask a lawyer or the appropriate authority if you are unsure what you may do. Do not change locks in a way that could create trouble for you later. Remember that a locksmith works for the person who calls and who proves authority over the property, which is exactly why the proof step exists. It keeps the service from being used against someone who has a legitimate claim to the home. If safety is a concern, contact the appropriate authorities and trusted support services first, and let a locksmith help only after you have a safe plan.
If there is no dispute, planning is simple. Agree on a handover of keys, a date for belongings to be collected and a time when you will rekey. Put the agreement in writing, even if it is only a short message that both people can keep: the date keys will be returned, which doors are covered and when the locks will be changed. Written plans prevent later disagreements about what was said. Having a plan reduces tension. It also treats the door as a practical matter rather than a symbol, which helps everyone move forward with less friction.
Family changes, grown children and caregivers
Not every household change is a separation. A grown child moving out, a relative who has been staying, a live in helper whose role is ending, or a caregiver who has had a key for months are all examples. In each case, someone who once needed access may no longer need it, and it is wise to match the keys to the current arrangement.
Be gentle in how you handle it. Asking for a key back is not an insult. You might say that you are updating the locks for everyone and would like to collect the old keys. Offering a new key to people who still need access makes it feel like routine maintenance rather than a judgment about anyone.
Caregivers and household helpers deserve a clear arrangement too. If someone visits regularly, consider giving them a code that can be changed rather than a physical key that can be copied. When their role ends, a code can be removed in moments, while a key must be found and returned. This approach respects their work and keeps your home secure.
For older family members or people with limited mobility, think about the type of lock as well. A keypad, a lever handle or a larger key head can make life easier. Our guide on elderly and accessible lock options offers ideas, and you can combine a rekey with a hardware change in one visit.
Vehicles, garage remotes and shared devices
Shared vehicles and shared devices are easy to overlook. A key fob can be copied or reprogrammed. A garage remote can open a door long after someone has moved out. A phone app that controls a car or a lock may still be linked to an old account. Go through these one at a time.
Do not forget the less obvious devices: a video doorbell account, a camera app, a home alarm code, a package locker code or a streaming key box. These may not look like locks, but they can reveal when the house is empty. Change the passwords and codes at the same time as the physical keys, so the whole system is updated together and nothing is left on the old arrangement.
For vehicles, the type of key matters. A mechanical key can be copied, while a transponder key or smart key must be programmed to the car. Read our guide on car key types explained and the overview of car key replacement if you need to remove a key from circulation.
For garage doors and gates, check how they are controlled. Some systems use remotes that can be reset, some use keypads and some use apps. Our guide on gate and garage entry security explains the options. Ask your association or manager how common gates are handled.
What to prepare for the locksmith visit
When you call Home Advisor Locksmith, a real person answers. Describe the situation in plain terms: you are updating access after a household change and want to know your options. You do not need to share personal details beyond what is needed. Tell us how many doors are involved, what type of locks you have and whether you rent or own.
The technician comes to you, and the price is explained before work starts. Be ready to show that you may change the lock, such as an ID and proof that you live there, a lease or a deed. If the building has an association or management company, have their approval ready. This protects everyone and keeps the visit smooth.
Plan how to handle new keys. Decide how many copies you need and who will hold them. Ask the technician to check the work with you before leaving, and test each key at each door. Write down which doors were done, so your records match what was changed.
If you are the person moving out, you can plan too. Return your keys to the person staying, or to the landlord, and say that you have done so. Remove your codes and accounts from the smart lock and the garage app. Taking these steps yourself shows good faith and leaves nothing open to misunderstanding. A short message confirming that the keys were returned is a useful record for both sides.
Keeping the new setup secure
Once the locks are refreshed, keep the new arrangement tidy. Do not hide a spare key under a mat or in a flower pot. Give copies only to people who need them, and keep a short list. When someone no longer needs access, collect the key or change the code. Our guide on spare key strategies explains how to manage this without stress.
Think about lighting and visibility too. A well lit entry, a clear view from the street and a door that closes firmly behind you all add to the feeling of security without any cost to convenience. Check the basics of the door as well. A strong lock in a weak frame is only partly effective. Look at the strike plate, the screws and the frame, and consider reinforcement where needed. Our page on door frame and strike plate security explains what to look for.
If you want an outside opinion on the whole home, a lock security assessment walks through each entry point and highlights what deserves attention. A household change is a natural moment to do that, because you are already thinking about how the home works.
Taking care of yourself through the change
Locks are one small part of a larger transition, and it is fine to treat them as a simple, practical task. You do not need to resolve every feeling to schedule a rekey. Doing it can bring a sense of control at a time when many things feel uncertain.
If you feel unsafe at any point, put safety first. Contact emergency services if there is immediate danger, and reach out to trusted people and local support services. A locksmith can help with the physical side of security, but a safe plan for you and your household comes first.
When the work is finished, take a moment to walk around the home. Try each key, lock each door and notice that the place is yours to arrange. Households in Miami Dade come in many forms, and many speak more than one language at home. Whatever your situation, a clear plan for who holds a key is a gentle, practical way to start the next chapter.
Common questions
Do I need to change the locks when a roommate moves out?
It is a sensible step, since the old key still works unless the lock is changed. If you rent, read your lease and ask your landlord or property manager first. Many roommate changes end with a simple rekey and new keys for the people who remain.
Can a locksmith change the locks if my partner still lives here?
A responsible locksmith confirms who you are and whether you have the right to change the lock. Ownership, leases and legal documents matter. If you are unsure of your rights, ask a lawyer or the proper authority first. We provide general guidance only, not legal advice.
Is rekeying enough, or should I replace the lock?
If the lock is in good condition, rekeying usually refreshes access while keeping the hardware. Replacement makes sense when the lock is worn, damaged or you want an upgrade. A technician can look at your doors and explain the choice before work starts.
What about smart locks and phone apps?
Change keypad codes, remove old accounts from the app and check who has access. Many smart locks also have a backup key, so remember that too. A technician can help set up new codes and explain how the lock handles a lost phone.
Do I need my landlord's permission?
Often yes. Leases commonly say who may change locks and who holds copies. Ask your landlord or property manager, and get approval in writing before any work. Condos and associations may have their own rules, so ask them too.
What should I have ready when I call?
Know how many doors are involved, what kind of locks you have and whether you rent or own. Have ID and proof that you live there or manage the place. The price is explained before work starts, and the technician comes to you.
Home Advisor Locksmith