Change Locks in Northridge, CA: Rekey or Replace, We'll Help You Decide

Should you rekey or replace your locks?

Most people who call us to change locks in Northridge are really asking one question: do I need new hardware, or just new keys? The honest answer depends on what is on the door today and what you are trying to fix. "Change locks" is a broad phrase. It can mean reworking the inside of the lock you already own so the old keys stop working, or it can mean taking the hardware off the door and installing something different.

Rekeying keeps the lockset in place and changes the internal pins so a new key works and every previous key does not. Our page on lock rekeying goes into the mechanics. It is usually the more economical route when the hardware is in good shape, and it solves the most common worry, which is not knowing who else has a key. Replacement makes sense when the hardware is worn, damaged, mismatched, or when you want something the current lock cannot do, such as a higher-security cylinder or a keypad. We cover that on the lock replacement page.

We do not lean toward one or the other because it is easier for us. We look at the door, test the existing hardware, listen to what you need, and tell you which option fits. Sometimes that is a rekey of every lock in the house. Sometimes it is a rekey on five doors and a new deadbolt on the one that has been sticking for years.

Why do people change their door locks?

The reasons are usually practical, and none of them require an emergency. Plenty of our lock change calls are planned a few days ahead. Others come in late at night because someone suddenly realized a key is out there that should not be.

The most common situation is a new home. If you are looking for a locksmith for a new house, the logic is simple: you have no idea how many keys exist for the locks you just inherited. The previous owner, their family, a real estate agent, a lockbox, a contractor, a house cleaner, a dog walker. Even honest, careful sellers cannot always account for every copy. Changing locks after buying a house means the only keys that work are the ones you are holding. Doing it before the first night in the home, or as close to it as you can manage, is the cleanest approach.

• You bought a house, condo, or townhome and want to cut off every key that came before you.
• You are moving into a rental and want to know who has access (see below on what is and is not your call as a tenant).
• A key was lost or stolen, or a set went missing during a move.
• A roommate, partner, or family member moved out and still has keys.
• Contractors, cleaners, caregivers, or former employees once had access.
• Your current locks are worn, stiff, or no longer line up with the door, and a rekey alone will not cure that.
• You want every door on one key, or want to move to a keypad or smart lock.

How does a lock change work, step by step?

A lock change at a home is a short, orderly job when the details are sorted out up front. Here is how we run it, whether it is one front door or every exterior door on the property.

1. You call (213) 577-1366. The line is answered 24 hours a day, 7 days a week. Tell us how many doors, what kind of locks you think you have, and why you want the change.
2. We ask a few specific questions: do the current keys turn smoothly, does any door stick or drag, do you want all locks on one key, and is anyone locked out right now.
3. A technician comes to you in one of our mobile vans. Because the work happens at your door, you do not have to bring anything in. Read more about how our mobile locksmith service works.
4. We confirm you live at or are authorized to work on the property. A reasonable request for proof of residence is normal for any honest locksmith.
5. We inspect each lock, deadbolt, strike plate, and the way the door closes. Hardware problems are easier to catch before we start than after.
6. We explain what we recommend door by door, rekey or replace, and give you the cost before work begins.
7. We do the work and test every lock with the new keys, with the door open and closed, until it operates cleanly.
8. We hand over the keys, tell you how many you have, and talk through extra copies so you do not end up with a loose key floating around again.

How we decide between rekeying and replacing

There is no secret formula. We go door by door and weigh the same handful of things every time. If you want to understand our reasoning before we arrive, this is it.

• Rekey when the lock is sound, turns smoothly, and the brand is a standard one that accepts new pins. This covers most standard deadbolts and knob sets in good condition.
• Rekey when the goal is simply to invalidate old keys, put several locks on one key, or reissue keys after a tenant, roommate, or contractor leaves.
• Replace when the lock is visibly worn, the latch sticks, the key wobbles in the cylinder, or parts are loose or broken.
• Replace when the hardware is a mismatch, such as a front door with a different brand on every lock, and you want a consistent, serviceable setup.
• Replace when you want better security than the existing cylinder offers or want a feature like a keypad. For a new deadbolt where none exists, see deadbolt installation.
• Replace or upgrade when you want a smart lock. Our smart lock installation page covers what to consider, including how the door itself affects the choice.
• Fix the door first when the real problem is alignment, a loose strike plate, or a frame that has shifted. Fresh locks on a door that does not close right will not hold up.

What affects the cost of changing locks?

We do not post numbers on a web page, because a lock change is not a single fixed job. What you pay depends on a short list of factors, and we walk through them with you before anything is done.

The first is how many locks are involved. One deadbolt is a different job from a whole house with a front door, back slider, garage entry, and side gate. The second is rekey versus replace. Rekeying existing hardware is generally the lighter-cost option, while new hardware adds the cost of the lock itself, which varies widely by grade and brand.

Hardware grade matters a great deal. A basic builder-grade deadbolt and a high-security cylinder are very different products. Finish, features, and whether the lock is a keypad or smart model move the cost, too. If you want every lock keyed alike, or want a particular key arrangement, that adds some work.

Door condition counts. If a door needs adjusting, a strike plate needs resetting, or a bore needs attention before new hardware will fit, that is additional labor we will point out in advance. The time of day also plays a part, since an after-hours call is a different undertaking from a scheduled daytime visit. Finally, distance has a small role: Northridge is roughly 20 miles from our Westwood storefront, and our vans come out to you.

The practical advice is simple. Ask for the full cost before the work starts, and make sure it covers every lock you expect to be changed. A reputable locksmith will not be vague about that.

Changing locks in Northridge: what we see locally

Northridge is not one kind of housing. It mixes 1950s and 1960s ranch tracts with student-oriented apartment complexes clustered around the CSUN campus, and the lock situation is quite different in each. Our service covers both Northridge ZIP codes, 91324 and 91325.

In the postwar ranch tracts, including the streets off the Devonshire Street corridor, rekeying older homes is a recurring job. These houses have often changed hands more than once, so the number of old keys in circulation can be a real unknown. The original or mid-life hardware may still be fine inside, and a rekey is often the sensible first move, with replacement reserved for the doors where the lock itself is tired. Long, hot North Valley summers matter here too. Sun-exposed doors expand and move, and fall Santa Ana wind events can add to the stress, so a lock that binds in the afternoon but works at night may be a door-fit problem rather than a lock problem. We check that before selling anyone new hardware. Larger semi-rural lots toward the Sherwood Forest area on the western edge often mean more doors and gates to account for, so it is worth counting every entry point before you call.

Around the CSUN campus area, the picture changes. Student housing turns over fast, especially at semester move-in and move-out, and hardware in high-turnover units wears out sooner than it does in a single-family home. If you are a student and locked out right now, our apartment lockout page is the better starting point. If you are a property owner who needs locks changed between tenants, our locksmith for landlords page covers that workflow. Much of Northridge's multifamily stock was repaired or rebuilt after the 1994 earthquake that took the neighborhood's name, so door frames and hardware vary widely in age. We treat each unit as its own situation rather than assuming a standard setup.

Along corridors like Reseda Boulevard, Nordhoff Street, and Tampa Avenue, we also work on homes and small properties that sit between the bigger centers of activity. Wherever you are in town, the approach is the same: come to you, look at the door, and tell you what it needs. For a broader view of what we do in the area, see our Northridge locksmith page.

Why call Wilshire Lock & Key?

Wilshire Lock & Key has been in business since 1987. That is a long time to work on doors across Los Angeles and Ventura counties, and we serve 140 cities in that area. We run a real storefront at 10740 Wilshire Blvd in Westwood, plus mobile service vans, so there is a physical business behind the phone number.

When you call (213) 577-1366, you are calling one company. We do not hand your job to a dispatcher who farms it out to whichever subcontractor picks it up. The person who answers is part of the business that sends the technician. David, the owner and lead technician, oversees the work, so there is someone accountable for how a job is done.

We also answer the phone around the clock, every day of the year. A lock change is usually a planned job, but it does not always stay planned. A key goes missing at midnight, a tenant leaves in a hurry, or you find out a former roommate still has a copy. You should be able to call and reach a person.

What should you ask any locksmith before they start?

California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services (BSIS), known as an LCO license. Ask any locksmith you are thinking about hiring for their license number, and check it. It is a reasonable question and a good company will answer it without fuss.

A few other questions are worth asking. What is the full cost, and does it include every lock you want done? Will the technician rekey or replace, and why? Will they test each lock with the new keys before leaving? Can they tell you who they are and what company they work for? If the answers are vague or the price is a moving target, call someone else.

After the lock change: keys, copies, and small habits

Once the locks are changed, the most useful thing you can do is keep control of the keys. Decide how many copies you actually need and who gets them. If you give a spare to a neighbor or family member, write down who has it. When someone no longer needs access, that is a good moment to think about whether another rekey is warranted, which is straightforward when all locks run on one key.

If you rely on a hide-a-key or a lockbox, remember that the people who knew about the old one are not necessarily the people you want to have access now. And if you keep mail or packages in a shared area, the mailbox lock is a separate lock on a separate key. We can help with that as well, but it is its own job.

Finally, if the lock change showed us a deeper problem, like a door that does not align or a frame that has been damaged, we will say so. Better to fix it once than to keep paying for hardware that cannot work properly in a bad door.

More locksmith help in Northridge

• Deadbolt Installation in Northridge
• Gate Lock Repair in Northridge
• High Security Locks in Northridge
• Key Duplication in Northridge
• Lock Installation in Northridge
• Lock Rekey in Northridge
• All services in Northridge

Change Locks near Northridge

• Reseda
• Granada Hills
• Porter Ranch
• Chatsworth
• Winnetka
• North Hills