Change Locks in Altadena, CA

Should you change locks or just rekey them?

Most people who search for a lock change are really asking one of two questions: how do I make the old keys stop working, or do I want different hardware on this door? Those are different jobs, and mixing them up is how people end up paying for new locks they did not need. A rekey changes the inside of your existing lock so a new key works and the old ones do not. A replacement removes the lock and puts a different one in its place.

We start every lock change with that question, because the answer decides the cost, the time on site, and what you are left with when we leave. If your locks are in decent shape and you simply do not know who holds copies of the keys, rekeying is usually the more economical route. If the hardware is worn, loose, mismatched, or not the kind of lock you want on your front door, replacing makes more sense. We cover each in more detail on our pages for lock rekeying in Altadena and lock replacement in Altadena.

A lock change can land in one of three places:

• Rekey: the lock stays on the door, the internal pins are reset, and you get new keys. Old keys no longer turn it.
• Replace: the old lockset comes off and new hardware goes on, with its own new keys. This is the choice when the old lock is failing or you want a different grade or style.
• Add or upgrade: a door that only has a knob lock gets a deadbolt, or a standard lock becomes a keypad or smart lock. Same visit, but really a small installation job on top of the change.

Why change locks after buying a house or moving in?

The honest reason is that you cannot know how many keys exist for a home you did not live in. Previous owners, their relatives, agents, cleaners, painters, a neighbor who watered the plants, a past tenant: any of them may have had a copy, and any of those copies may have been duplicated again. Nobody has to be untrustworthy for this to matter. Keys simply travel. Changing the locks puts you back in control of who can open your door, starting on day one.

That is why a locksmith for new homeowners is often the first service people call after closing, and why we get calls from people searching for a locksmith for a new house the evening they get the keys. It applies just as much when you are moving into a rental where the landlord has agreed to a change, moving after a breakup or a roommate leaving, or coming back to a property that sat empty for a while.

If you are not sure whether your situation calls for a change at all, ask yourself a simple question: could I list everyone who has a key to this door? If the answer is no, that is your answer. And if you are locked out on moving day before any of this happens, our house lockout service in Altadena is the place to start.

How do we change locks, step by step?

The process is the same whether it is one front door or a whole house. What changes is the hardware we find and the decisions it leads to.

1. You call (213) 577-1366. A person answers at any hour. Tell us how many doors, what kind of locks they appear to be, and why you are changing them.
2. We look at the hardware on site: brand, condition, whether the cylinders can be rekeyed, and whether the door and strike plate are lined up so the bolt throws fully.
3. We lay out your options in plain terms, rekey versus replace, door by door if needed, and explain what drives the cost before any work begins.
4. We do the work at the door. That means rekeying cylinders or swapping hardware, and fixing small fit problems that would undermine the new lock.
5. We cut your keys and test every lock with every key, with the door open and again closed, so you are not discovering a sticky bolt at midnight.
6. We hand over the keys, tell you which key works where, and talk through spare copies. If you want extras, our key duplication service handles that.

How do we decide whether to rekey or replace?

We do not walk in with a preferred answer. We look at the lock and let it tell us. These are the things that tip the decision:

• Condition: a lock that turns smoothly and sits tight on the door is a good rekey candidate. One that is loose, worn, or stiff is not worth rekeying, because you would be resetting a lock that is already on its way out.
• Security grade: a very basic builder-grade lock can be rekeyed, but you may decide that this is the moment to move to something sturdier.
• Missing pieces: if a door has only a knob lock, no rekey fixes that. Adding a deadbolt is a different upgrade, and often the more meaningful one.
• Key convenience: many households want every exterior door on one key. Rekeying can do that, as long as the locks are compatible.
• Technology: if you want keypad or app-based entry, that is a replacement. We can talk through smart lock installation options and the tradeoffs, such as batteries and backup keys.
• Character: on older homes, original hardware is sometimes worth keeping. If it works and can be rekeyed, we would rather preserve it than pull it out.

What affects the cost of changing locks in Altadena?

We do not publish flat numbers here because a lock change is not one fixed job, and a price that ignores your actual doors would be a guess. What we can do is tell you exactly what moves the cost, so you can judge any quote you receive, ours included.

When you call, we will talk through these factors and tell you where your job falls before we start work.

• Rekey versus replace: new hardware is the largest single cost driver. Rekeying reuses what you have, which is why it is usually the lighter-cost option when the locks are sound.
• Number of locks: every cylinder has to be handled, and a house with a front door, back door, side gate, garage entry, and a few more adds up differently than a single door.
• Grade and type of hardware: a standard deadbolt, a high-security cylinder, a mortise lock, and a smart lock sit in very different ranges.
• Keying choices: one key for the whole house, or separate keys per door, changes the work involved.
• Door and frame condition: a bolt that does not reach the strike, or a bored hole that does not fit the new lock, needs fixing for the new lock to do its job.
• Timing and distance: after-hours calls and travel to your location are real factors. Altadena is about 26 miles from our Westwood base, and we will be upfront with you about how that figures in.

What does changing locks look like in Altadena?

Altadena is not one kind of housing, and lock changes here reflect that. The historical stock includes Craftsman bungalows, Janes Village cottages, and mid-century foothill homes. After the January 2025 Eaton Fire, the area is a mix of surviving older homes and active rebuilding, with West Altadena hit especially hard. On intact blocks, new-construction door hardware can sit next to original early-1900s locksets.

That mix shapes the advice we give. For a surviving Craftsman near Christmas Tree Lane on Santa Rosa Avenue, or a cottage in Janes Village, the first question is whether the vintage hardware can stay. Old mortise locks and original knobs are often worth rekeying rather than ripping out, as long as they still work and the door is in good shape. We look at each one individually, because some are worth saving and some have simply worn out.

For rebuilds, the situation is different. A home under reconstruction has had a lot of people through it: framers, electricians, finish carpenters, inspectors. Construction keys have a way of staying in circulation. If you are taking possession of a rebuilt home in West Altadena, East Altadena, or anywhere else in 91001, rekeying or changing the locks at handover means the builders' keys stop working, and the only keys that matter are yours. We also work with owners who are getting new hardware installed as part of a rebuild and want it keyed to match.

Securing a vacant parcel or construction site is its own category. Padlocks and temporary gate locks are part of what we do in Altadena, but that is a different job from changing a home's door locks, and we will treat it that way when you call. If you live behind a gate, such as in the La Viña community on the northwest edge of Altadena, our gate lock repair service is the better fit for the gate hardware itself, while we can change the locks on your own front door the same way as anywhere else.

How do Altadena's wind, grit, and sun affect door locks?

Altadena sits in the foothills, with hotter summers than the basin and strong, dry Santa Ana winds coming off the San Gabriels. For exterior doors, the two main wear factors are wind-blown grit and intense sun. Neither is dramatic on its own, but over years they add up.

Grit works its way into keyways and bolt mechanisms, which is why a front door lock can start to feel gritty or stiff long before it fails. Sun fades and bakes finishes on handles and escutcheons, and it can cause wood doors to expand and contract enough to make a bolt bind against its strike. That last one is easy to mistake for a bad lock when it is really a door-fit problem.

Why does this matter for a lock change? Because a sticky lock does not always need replacing. Sometimes a cleaning and a small adjustment is all it needs, and we would rather tell you that than sell you hardware. But if the cylinder is worn from years of grit and keys have been copied from copies, replacing it, or at least rekeying a lock that is still healthy, is the sensible move. A dry lubricant made for locks is better for cylinders than oily sprays, which tend to attract more dust.

Why call Wilshire Lock & Key for a lock change?

We have been in business since 1987, and we are a real local company: a storefront at 10740 Wilshire Blvd in Los Angeles, CA 90024 (Westwood), plus mobile service vans that come to you. When you call (213) 577-1366, you reach us, not a call center that sells your job to whoever picks it up. There is no dispatch middleman between your call and the technician at your door. We serve 140 cities across Los Angeles and Ventura counties, and Altadena is one of them. For more on how we come to you, see our mobile locksmith service.

David, the owner and lead technician, oversees the work. That matters on a job like this, where judgment counts as much as tools: deciding what to keep, what to replace, and what is not worth doing at all.

One more thing worth knowing: California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services (BSIS), called an LCO license. Ask any locksmith for it before they start work on your home. It is a fair question and a reasonable thing to check.

What should you have ready when you call?

A little information makes the call faster and the advice more accurate. You do not need all of it, and we will help with whatever you are unsure about.

• How many exterior doors need new locks, and whether you want interior doors, garage entry, or side gates included.
• Whether you want everything on one key or separate keys.
• A rough description of the existing hardware, or a photo if you can send one.
• The reason for the change: new purchase, move-in, lost keys, a rebuild handover, or something else.
• Whether any lock is currently stiff, loose, or hard to turn.
• Your address, including the neighborhood or gated community, so we can plan access.
• Anything that would help us confirm you have the right to change the locks, such as being the owner or tenant with permission.

More locksmith help in Altadena

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

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