When should a lock be replaced instead of repaired?
Most lock calls come down to one question: is this lock worth saving? Sometimes a sticking latch or a loose handle is a quick adjustment, and we will say so. If that is all it needs, lock repair is the lighter-cost route and there is no reason to sell you a new lock. But some situations call for replacement, and it helps to recognize them before anyone shows up.
Replacement is usually the honest answer when you see one of these:
- The key turns rough, grinds, sticks, or only works with jiggling, which usually means the cylinder is worn out inside.
- The deadbolt no longer throws fully into the strike, or the bolt itself is bent, burred, or dragging.
- Someone forced the door and the lock body, latch, or strike plate is cracked or bent.
- The finish is worn through, the screws will not hold, and the lock wobbles in the door.
- A key broke off and the cylinder is damaged, or the lock is simply a very old design that is hard to maintain.
- You want to move up from a basic builder-grade lock to something sturdier, which is a security lock upgrade rather than a repair.
Replacement or rekeying: which one do you need?
These two get confused all the time. Rekeying changes the pins inside a lock you already own so the old keys stop working and a new key takes over. It makes sense when the lock itself is in good shape and your only worry is who might still hold a copy. If that sounds like your situation, read about lock rekeying first, because it is often the more economical route.
Replacement makes sense when the hardware is the problem: it is damaged, worn, outdated, or too weak for the door it is protecting. When you call, describe what is happening and we will tell you plainly which one fits. If we get to the door and rekeying would do the job, we will say that instead of swapping a lock that does not need swapping.
How does lock replacement work, start to finish?
Here is how a typical replacement call goes. The details shift between a front door, an apartment unit, and a commercial gate, but the order stays the same.
- You call (213) 577-1366. A person answers at any hour, and you describe the door, the lock, and what happened.
- A technician comes to the property in one of our mobile service vans with hardware and tools for the job.
- Before touching the lock, we look at the door and frame: the bore holes, the edge, the strike plate, and the wood or metal around them. A new lock is only as sturdy as what it is mounted in.
- We explain your options and confirm the cost before work begins, including what is driving it.
- We remove the old hardware, fit the new lock, and set the strike so the latch and bolt line up cleanly.
- We test the lock with the door open and closed, from both sides, and cut and test every key you need.
- We show you how it operates, hand over the keys, and take the old hardware with us unless you want it kept.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Which replacement lock is right for your door?
Not every lock needs to be a premium one, and not every door should get a cheap one. The right pick depends on the door, how it is used, and what you are protecting.
For most entry doors, a quality deadbolt paired with a solid latch set is the sensible foundation. If your door has only a knob lock, adding or upgrading a deadbolt is often the single most useful change. Our page on deadbolt installation covers how those are fitted, including strike plate and screw length, which matter more than people expect.
If break-ins, key control, or pick resistance are real concerns, high-security locks use tighter tolerances and restricted keys that are harder to copy without authorization. They cost more than standard hardware, and they are not necessary for every door, but they are worth discussing for a main entry or a business back door.
If you want keypads, phone control, or temporary codes for family, tenants, or workers, smart lock installation is its own conversation. We will be straight with you about where a mechanical lock is simpler and more dependable than an electronic one.
- Look at the door first: a heavy lock on a warped or split door will not hold up.
- Match the hardware to the door's role: front entry, side door, apartment unit, storeroom, and gate each ask different things of a lock.
- Think about keys: who needs one, whether you want them restricted, and whether several locks should share one key.
Replacing locks on houses, apartments, and businesses
Residential lock replacement covers front doors, back doors, side doors, and garage entry doors. For a house, we often replace the front door lock and deadbolt together so they match and share one key. If you move into a home and do not know who has keys, replacing or rekeying every exterior lock is a sensible first week task.
Apartment lock replacement has a few extra considerations. Tenants should check their lease and talk to the landlord before swapping a lock, and landlords should keep records of who holds which keys. We work with property owners on this, and if that is you, see our page for locksmith services for landlords.
Commercial lock replacement and business security upgrades are different from a house job. Business doors see more traffic and more abuse, they may need keyed-alike or restricted keys, and they have exit requirements, so we look at how people leave the building before choosing hardware. We replace storefront locks, back-door deadbolts, gate locks, and padlocks. For larger projects, our commercial locksmith page explains the wider scope.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What affects the cost of lock replacement in Sun Valley?
We do not quote numbers on a web page, because a lock replacement can be a simple swap or a bigger repair job, and the honest price depends on what is in front of us. Here is what moves the cost up or down:
- The lock itself: basic hardware, higher-grade deadbolts, high-security cylinders, and smart locks sit at very different levels.
- How many locks: replacing one door is different from doing an entire house or a row of units, and several locks keyed alike take planning.
- The condition of the door and frame: a cracked jamb, an oversized bore, or a swollen door may need work before the new lock will sit right.
- Door type: wood, hollow metal, solid-core, glass, and gate frames each need different handling.
- Key requirements: extra keys, restricted keys, or master-keyed groups add to the work.
- Time of day: after-hours and emergency calls cost differently from scheduled daytime work, and we will tell you that up front.
- Parts availability: older or unusual hardware can be harder to match, which sometimes pushes a full replacement over a repair.
Lock replacement in Sun Valley: older homes, apartment corridors, and industrial yards
Sun Valley, ZIP code 91352, has a mix of properties that each present their own lock problems. Our storefront is at 10740 Wilshire Blvd in Westwood, about 17 miles from Sun Valley, and our mobile vans cover the neighborhood.
Much of the housing here is postwar single-family bungalows and ranch houses from the 1940s through the 1960s. The Stonehurst tract is known for its 1920s river-rock cottages, and many of them still carry vintage hardware. That is a real consideration when replacing a lock: old mortise sets and original doors are sometimes worth keeping and servicing rather than gutting, and sometimes the lock is simply too worn or too weak to trust. We will look at what is on the door and tell you which situation you are in. If you are locked out of one of those cottages, our house lockout page covers that first.
Along Glenoaks Boulevard and the other major corridors, there are apartment pockets where lock replacement often means front unit doors and shared fixtures. Mailbox lock changes come up in those buildings too, and our mailbox lock replacement page covers that separately.
The San Fernando Road industrial corridor is another world. Recyclers and auto businesses run roll-up doors, yard gates, and commercial padlocks that take daily punishment. Replacing hardware there is often about durability and key control, not looks. Near the Shadow Hills edge, there are horse-zoned lots where property gates and outbuildings need locks that can handle the outdoors.
Climate matters for exterior locks. Hot, dry summers in the eastern San Fernando Valley can swell wooden doors and frames, which makes a lock bind even when the lock itself is fine. Santa Ana winds carry dust that works into exterior cylinders and wears them down over time. We keep both in mind when we check whether a lock needs replacing or whether the door just needs adjusting.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Why call Wilshire Lock & Key for lock replacement?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties. Sun Valley is one of them. Here is what you can expect from us:
- One company from the first call to the finished job: no dispatch middlemen passing your job to whoever is available.
- A real storefront at 10740 Wilshire Blvd plus mobile service vans, so there is an actual business behind the phone number.
- Phones answered 24 hours a day, 7 days a week, year-round at (213) 577-1366.
- David, the owner and lead technician, oversees our work and our standards.
- Honest recommendations: if a repair or rekey will do the job, we say so instead of selling you a new lock.
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), called an LCO license. Ask any locksmith for that license number before work begins, and check it with the state. It is a fair question and a reputable company will not mind it.
Beyond the license, ask for the cost explanation up front, including after-hours differences. Ask what brand and grade of lock is going on your door. Make sure the technician checks the door and strike, not just the lock. And watch for anyone who insists on drilling a lock that can be opened or serviced without damage. Those few questions filter out most of the problems people run into.
Frequently asked questions
How long does a door lock replacement take?
A single standard lock on a sound door is usually a short job. It takes longer if the door needs repair, the hole is the wrong size, or you have several locks to do and keys to cut. We will give you a realistic sense of the work once we see the door.
Can you replace a lock the same day I call?
We answer the phone 24 hours a day, 7 days a week, and we try to get you scheduled as soon as we can. Availability depends on the job and what is already on the schedule, so call (213) 577-1366 and we will tell you what is realistic for your address.
Do I need to replace my lock after a break-in?
Often yes, especially if the door was forced and the lock, latch, or strike plate is bent or cracked. Even if the lock looks fine, the frame may be damaged. We check the door and frame, replace what is compromised, and talk through ways to make the entry stronger.
Is it better to replace a lock or rekey it?
If the lock is in good condition and the issue is who has keys, rekeying is usually the more economical route. If the lock is worn, damaged, or too weak for the door, replacement is the better choice. We will tell you which one fits after seeing it.
Can I replace a lock on my rental apartment myself?
Check your lease first, and talk to your landlord. Many leases require permission or require that the landlord keeps a key. Landlords often handle lock changes between tenants. If you have approval, we can do the replacement and cut the right keys.
Can you replace locks on commercial gates and padlocks along San Fernando Road?
Yes. We handle business lock replacement, including gate hardware, commercial padlocks, and back doors. Tell us what the gate or door is made of and how often it is used, and we will recommend hardware built for that wear.
Will the new lock fit my old front door?
Usually, yes. Most modern locks fit standard bore sizes. Older doors and vintage hardware can be different, and sometimes a door needs a bit of adjustment first. We check this before we start rather than forcing a lock into a door it does not suit.
How do I know a locksmith is legitimate?
Ask for their BSIS LCO license number, since California requires locksmith companies to hold one. Ask for a clear explanation of costs before the work starts. And be careful of anyone who will not tell you who they are or who shows up in an unmarked vehicle.
More locksmith help in Sun Valley
Lock Replacement near Sun Valley
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
