What does it mean to rekey locks?
A lock rekey changes the inside of a lock so that a different key operates it. The lock stays on your door. The handle, the deadbolt, the finish and the look all stay exactly as they are. What changes is the secret inside the cylinder.
Most door locks in Carson homes are pin-tumbler cylinders. Inside is a column of small pins of different lengths. Your key lifts each pin to exactly the right height so the cylinder can turn. When we rekey a lock, we take the cylinder apart, swap the pins to match a new key cut, and put it back together. Your old key still slides in, but it no longer lifts the pins correctly, so it will not turn. The new key works smoothly.
People search for this under a lot of names: rekey locks, house rekey, home lock rekey, apartment lock rekey, rekey door locks. It is all the same basic job. What differs is how many locks are involved, what brand they are, and whether you want every door on one key.
One honest limit: a rekey changes who can open the lock, not how well the lock is built. If a cylinder is worn out, a latch is dragging, or the hardware is bent, rekeying will not fix that. We will tell you when that is the case and point you toward the right fix.
When should you rekey your locks?
The simple test is this: do you know exactly who holds a working key to this door? If the answer is no, a rekey puts you back in control. These are the situations we get called for most often.
- Rekey locks after moving: the previous owner, their relatives, a cleaner, a dog walker and a contractor may all still have keys.
- Rekey locks after buying a house: you have no record of how many copies were cut over the years, and closing day is the cleanest moment to reset that.
- Rekey locks after a tenant moves out: tenant turnover rekey is standard practice for landlords, because the next tenant should not share a key with the last one.
- Rekey locks after losing keys: if keys went missing with an address attached to them, or you simply cannot say where they ended up, a rekey is the sensible response.
- After a breakup, a falling-out with a roommate, or a contractor or employee leaving: the relationship changed, so the keys should too.
- When you want rekey all house locks to a single key: front door, back door, side gate and garage entry door all open with one key instead of a heavy ring.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How does a lock rekey work, step by step?
Here is how a typical visit goes. It is not complicated, and you are welcome to watch the work.
- You call (213) 577-1366. Tell us how many locks you want rekeyed, what kind they are (front door deadbolt, knob, back door, padlock, mailbox) and whether you want them all on one key. If you know the brand, mention it. If not, a photo helps, and we will sort it out when we arrive.
- A technician comes to you in one of our mobile service vans, carrying the pins, tools and key-cutting equipment needed to finish the job on site.
- We look at each lock before touching it. We check that the key turns, that the bolt throws fully, and that the door lines up with the strike plate. This is where we catch problems a rekey will not solve.
- We remove each cylinder and take out the old pins. We rebuild it with pins matched to the new key. Where you want several locks on one key, we build them all to the same cut.
- We cut the new keys and test them in every cylinder, several times, before anything goes back on the door.
- We reinstall the hardware and test the lock on the actual door, from outside and from inside, with the door open and closed.
- We confirm that the old key no longer operates the lock, hand over the new keys, and explain what to do about extra copies.
Should you rekey or replace the lock?
If the hardware is in decent shape, rekeying is usually the more economical route and the less disruptive one. You keep the locks you already chose, the door does not need to be drilled or modified, and the work is quick. For most moves, tenant changeovers and lost-key situations, rekey is the right answer.
Replacement makes more sense in a few cases. The lock is worn, sticky or damaged. The finish is failing. The lock is a low-grade model you want to upgrade. Or you want a different style, such as a keypad or smart lock. In those cases a full change of locks or a proper lock replacement is a better use of your money than rekeying hardware you will soon replace anyway.
We do not push you toward the bigger job. If a rekey will do what you need, we say so. If a lock is on its last legs, we say that too and let you decide.
Once your locks are rekeyed, think about how many copies of the new key you really need. Making a few extras at the time is easier than coming back later, and our key duplication service covers that. Keep the count low and keep a record of who has one.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How much does lock rekey cost in Carson?
We do not quote numbers on a web page, because the real figure depends on your doors, not on a rate card. What we can do is tell you exactly what moves the cost up or down, so the number you hear on the phone makes sense.
- How many cylinders you have. A single deadbolt is a small job. A whole house with front, back, garage entry and side doors is a bigger one.
- Whether you want them keyed alike. Putting every lock on one key takes more careful pin work than rekeying each lock independently.
- The brand and condition of the locks. Common residential hardware is straightforward. Older, unusual or worn cylinders can take longer or need parts.
- How many new keys you need cut.
- Whether anything else needs attention, such as a loose latch or a misaligned strike plate found during the check.
- Time of day. Our line is answered around the clock, and after-hours calls are handled differently from a scheduled daytime visit.
- Where the job is. Carson is about 24 miles from our Westwood storefront, and travel is part of any mobile visit.
Lock rekey in Carson: tract homes, townhomes, mobile home parks and student rentals
Carson is dominated by single-family tract homes built in the 1950s through the 1970s, and that shapes most of the rekey work here. These houses have usually been through several owners and a number of renters. Locks that were installed decades ago have often been rekeyed once or twice, or never. Whether you live in Carousel Tract, Dominguez or anywhere along the Avalon Boulevard or Carson Street corridors, a house rekey after buying is one of the simplest ways to start fresh. Our work spans all three Carson ZIP codes: 90745, 90746 and 90747.
Townhome communities such as Scottsdale are a different pattern. Many are managed by HOAs, and there is steady turnover as units are sold and rented. A townhome often has a front door, a patio or back slider, and sometimes a garage entry, so rekey all house locks to one key is a common request. Mailbox locks in these communities are a separate matter. If yours is worn or the key has circulated too widely, mailbox lock replacement is usually what the situation calls for rather than a standard door rekey.
Carson also has a notably large number of mobile home parks spread across the city. Mobile home door hardware is not always the same as standard house hardware, and some units have locks that are better replaced than rekeyed. We look at what is actually on your door, rekey it when the hardware allows, and replace it when it does not.
Near California State University, Dominguez Hills, a lot of newer infill and student-oriented rentals have fast turnover. When a roommate leaves mid-lease or a group of students moves out, the key problem is the same as anywhere else: you cannot be sure who still has a copy. A rekey solves that without changing the door hardware the landlord provided.
Then there is the weather. Carson sits on the flat inland harbor plain, with marine layer overcast but little salt-air corrosion, so locks here tend to hold up reasonably well on the metal side. What does move is the wood. Summer heat and damp winter mornings make older tract-home doors expand and contract, and a door that swells can make a perfectly good lock feel stiff. We check this before rekeying. If the key binds because the door is rubbing the frame, new pins will not cure it, and we tell you straight.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Tenant turnover, apartments and commercial rekeys
Rekeying between tenants is not optional in any sensible rental operation. A tenant turnover rekey means the departing tenant, their friends and family, and anyone they ever handed a key to can no longer get in. Doing it on every turnover is also much easier than trying to prove, after an incident, that you could not have known. For owners with several units, our page for landlords explains how we handle repeat work across a portfolio. For a single apartment lock rekey, the process is the same one described above, and we pay attention to getting in and out cleanly around your move-in schedule.
Commercial work is a large part of Carson. Industrial and logistics buildings border many residential areas, and the city has warehouse and distribution-facility doors along the 405 industrial corridors, plus storefronts at SouthBay Pavilion and along Avalon Boulevard. A commercial rekey or business lock rekey is useful when an employee or manager leaves, when a business changes hands, when a lease starts, or when keys have simply drifted too far from where they should be.
Businesses often have more than a front door. There may be a back dock door, an office, a stockroom, a side entrance and a rolling gate padlock. We can rekey these so that the right people carry the right keys. If your building has outgrown simple keys and you need layers of access, such as one key for staff, another for managers and one that opens everything, a master key system is the structured way to do it. For broader work on business doors, our commercial locksmith page covers what else we handle.
Why call Wilshire Lock & Key for a rekey?
We have been in business since 1987, and rekeying is among the oldest jobs in the trade. We have a storefront at 10740 Wilshire Blvd in Westwood, and our mobile locksmith vans bring the tools to you across 140 cities in Los Angeles and Ventura counties, Carson included.
When you call (213) 577-1366, you reach us, not a national call center that sells the job to whoever picks it up. We are one company, with no dispatch middlemen between your call and the person at your door. That matters for a rekey because you are trusting someone with the keys to your home or business, and you should know whose name is on the work.
David, the owner and lead technician, oversees how we do things. The phone is answered 24 hours a day, 7 days a week, year-round, so a lost-key panic at night does not have to wait for morning. Most rekeys are not emergencies, and we are just as happy to schedule one at a normal hour.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What should you ask any locksmith before a rekey?
Rekeying puts a stranger at your door with access to your security, so it is fair to ask questions. Here is what we would ask if we were the customer.
California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services (BSIS), called a Locksmith Company (LCO) license. Ask any locksmith for their license number, and check it. That includes us. Be cautious of anyone who is vague about it or whose ad lists no business name or local address.
Ask what the price depends on and for it to be explained before work starts. A reputable company can tell you how the figure is built. Ask whether the technician will rekey on site or take your cylinders away. Ask how many keys come with the job. And expect a locksmith to ask you to show that you live at or manage the property. We do, and it protects you as much as anyone.
Frequently asked questions
What is the difference between rekeying and changing locks?
Rekeying keeps your existing lock hardware and changes the pins inside so a new key works and the old one does not. Changing locks means taking the old hardware off and installing new locks. If your locks are in good shape, rekeying is usually the more economical route. If they are worn, damaged or you want an upgrade, replacement is the better choice.
Should I rekey locks after buying a house in Carson?
Yes, it is one of the most common times to do it. You cannot know how many copies the previous owners, renters, agents or contractors made over the years. Carson has many 1950s to 1970s tract homes that have changed hands several times, so rekeying all the exterior locks when you take ownership is a sensible first step.
Can you rekey all my house locks to one key?
Yes. We can rebuild the front door, back door, garage entry, side door and similar locks to work with a single key. Some locks may not be suitable, such as an older cylinder that does not match the others, and we tell you that when we look at them. If one is not suitable, we can usually replace that one lock and key it to match.
How long does a rekey take?
A single lock is a short job, and a whole house takes proportionally longer. We do not promise a specific time over the phone because it depends on the number of locks, their brand and their condition. Tell us what you have when you call and we will give you a realistic idea of how the visit should go.
Do I need to be home while you rekey the locks?
Someone authorized should be there, at least at the start and the end, so we can confirm that you are entitled to have the locks rekeyed and so you can test the new keys. For rental units, a manager or owner can authorize the work. Call us and we will work out the practical details.
Can you rekey a lock when I have lost all the keys?
Often, yes. We do not need your old key to rekey a lock. We can open the lock if necessary, take the cylinder apart and build it to a new key. If the problem is that you are locked out right now, our house lockout service is the place to start, and the rekey can follow while we are there.
Is rekeying a good idea after a tenant moves out?
Yes. It is standard practice for tenant turnover. Even if the tenant returned every key, you cannot be sure no copies exist. A rekey between tenants cuts off all old keys and gives the next resident a lock nobody else has a key to. It usually costs far less than replacing every lock.
Can you rekey commercial and business locks in Carson?
Yes. We handle commercial rekey and business lock rekey work for storefronts, offices, warehouses and similar buildings. That can include front doors, back doors, dock doors and padlocks. If you want different staff levels with different access, we can talk through a master key setup as well.
Will my old keys still work after a rekey?
No. That is the point of the job. After the pins are changed, the old key may slide into the lock, but it will not turn it. We test this before we leave so you know the old key is out of use.
Can you rekey a mobile home lock in Carson?
Often we can, depending on the hardware on the door. Mobile home locks differ from standard house locks, and some are better replaced than rekeyed. We look at the actual lock and tell you which option makes sense.
More locksmith help in Carson
Lock Rekey near Carson
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
