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Wilshire Lock & Key

24/7 locksmith · Cerritos, CA

Lock Installation in Cerritos, CA

Wilshire Lock & Key handles lock installation in Cerritos, CA 24/7, from a new front door lock on a tract home to commercial hardware in the Industrial Park. Call (213) 577-1366 any hour, any day. We fit the lock, check the door, and test it before we leave.

  • Since 1987
  • Westwood storefront + mobile vans
  • A person answers, day or night
Drilling a clean bore for a new lockset in a wooden door

What does lock installation actually involve?

People often picture lock installation as unscrewing one lock and screwing in another. Sometimes it is close to that. More often, the lock is the easy part and the door is where the work lives. A new lock has to sit in a bore that is the right size, line up with a strike plate that is set at the right depth, and throw its bolt into the frame without the door being lifted, pushed, or lent on. If any of that is off, the lock feels sticky, wears early, or fails to secure the door at all.

That is why we treat door lock installation as a fitting job, not a parts swap. We look at the door, the frame, the latch edge, and how the door has been behaving over the years. Then we choose and fit hardware that suits what is actually there. We cover residential lock installation for houses, townhomes, and condos in Cerritos, and commercial lock installation for offices, retail doors, and warehouse entries.

This page is about putting new locks onto doors that need them: a new build, a door with no lock, a door where the old hardware is being removed for something better, or an added lock for extra security. If your existing lock still works and you only worry about who holds copies of the key, a lock rekey is often the quicker and more economical route. We will tell you honestly when that is the case instead of selling you hardware you do not need.

When does a Cerritos home or business need a new lock installed?

Most calls we get for new lock installation fall into a handful of situations. If yours is on the list, you are in the right place. If it is not, call anyway and describe what you have; we will sort out whether installation is the right fix.

  • A door has no lock, or only a basic latch, and you want it secured properly.
  • You are adding a second lock, such as an extra security lock above the main handle set, for a door that needs more resistance.
  • A previous lock was removed, damaged, or drilled out, and the door needs fresh hardware fitted correctly.
  • You are moving into a home or taking over a business space and want locks you control from day one.
  • A renovation, new door, or new frame means the old hardware no longer fits.
  • You want a different style of hardware, such as lever handles in place of round knobs for easier use.
  • A side gate, garage side door, or back door has never had a lock that you trust.
  • A business is adding doors, offices, or storage rooms and needs them secured individually.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How do we install a lock, step by step?

Every job is a little different, but the sequence below is how we approach almost every lock installation. We explain each stage as we go, so you are never guessing what is happening to your door.

  1. Talk first. We ask what the door is, who uses it, and what you want the lock to do. Is it a front door, a back door, an interior office door, or a warehouse entry? How many people need keys?
  2. Inspect the door and frame. We check the thickness of the door, the material, the existing bore holes, the condition of the frame, and whether the door closes squarely.
  3. Recommend hardware that suits the door. We lay out the realistic options, say which one we would fit on our own door, and explain the trade-offs in plain terms.
  4. Prepare the door. If the bore holes need to be cut, enlarged, or cleaned up, we do that carefully so the finish is tidy and the lock sits true.
  5. Fit the lock body and handle set. We install the latch, the lock body, and the trim, and make sure fasteners are tight without distorting the mechanism.
  6. Set the strike plate. This is the step many rushed installs get wrong. The strike has to sit exactly where the bolt lands, and in the frame wood or metal that will hold up to real force.
  7. Test every function. We run the key, the thumb turn, the handle, and the latch several times with the door open and closed. We also check that the door shuts without needing a shove.
  8. Hand over the keys and explain the lock. We show you how it works, tell you what to watch for as it ages, and answer any questions before we leave.

Which lock types do we install: lever, mortise, security, and more?

The right lock depends on the door and the job. Here is how we think about the main categories we install across Cerritos.

Front door lock installation. A front door normally carries two things: a handle set that latches the door and a separate deadbolt that locks it. Fitting both properly matters more than the brand name on the box. For a stand-alone bolt, see our page on deadbolt installation. If you want keypad or app-controlled entry, that has its own considerations and is covered under smart lock installation.

Lever lock installation. Lever handles are easier to operate than round knobs, particularly for anyone with limited grip strength, arthritis, or arms full of shopping. They are common on offices and commercial doors and increasingly popular at home. Fitting a lever is not harder than fitting a knob, but the handle needs correct return spring tension so it does not droop over time.

Mortise lock installation. A mortise lock sits inside a deep pocket cut into the edge of the door rather than being fitted through a round bore. You find them on older, heavier doors and on many commercial and institutional doors. Installing one takes more care, because the pocket has to be cut accurately and the door edge must be strong enough to hold it. If you have a door that already has a mortise pocket, we can often fit a new mortise body without altering the door, but we confirm that on site.

Security lock installation. When the aim is to make a door harder to defeat, we look at the whole door: the bolt, the strike, the frame, the hinges, and the lock cylinder. A strong lock in a weak frame is only as secure as the frame. For doors that need extra resistance to picking, drilling, or bumping, take a look at our notes on high-security locks.

Commercial lock installation. Business doors have different demands: heavy daily use, fire and exit requirements, and often multiple users. We fit commercial-grade locksets, and for larger jobs involving closers, exit devices, and more complex doors, see our work on commercial door hardware.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How much does lock installation cost in Cerritos?

We do not publish prices on a web page because an honest figure depends on your door, and a number quoted before anyone has seen it is usually wrong. What we can do is tell you exactly what moves the cost, so you can judge a quote from us or anyone else.

The hardware itself is the biggest variable. A standard residential lever or knob set is a very different product from a high-security cylinder, a mortise lock body, or a commercial-grade lockset. Quality within each category varies as well, and we will explain what you are paying for at each level.

Door preparation comes next. If the door already has correctly sized bore holes, installation is simple. If we have to cut new holes, widen existing ones, repair a damaged edge, or reinforce a weak frame, that takes more time and sometimes extra materials.

The number of locks matters. Several doors keyed alike, a full set of exterior doors, or a multi-door business all change the work involved, although fitting several locks in one visit is usually more economical per door than separate trips.

Timing and location also play a part. Night, weekend, and holiday calls differ from daytime appointments. Cerritos is about 29 miles from our Westwood storefront, and travel is one of the things we take into account when we quote.

The most useful thing you can do is tell us what door you have, ideally with a photo, and what you want the lock to do. We give you a clear quote before any work starts. If a cheaper approach, such as rekeying or repairing the lock you already have, would solve your problem, we say so.

Why call Wilshire Lock & Key for installation?

We have been in business since 1987, and a lot of what we know about fitting locks came from doors that fought back. That experience matters on installation work, because the awkward doors, the warped frames, and the half-finished previous attempts are where a rushed job falls apart.

We are one company, not a call center. When you phone (213) 577-1366, you reach us, not a dispatch middleman who sells your job to whoever is nearest. The person who takes the call is part of the same operation that sends the van. We run a storefront at 10740 Wilshire Blvd in Westwood alongside our mobile locksmith vans, which means we carry stock and also come to you.

David, the owner and lead technician, oversees our work. For installation, that means standards on how doors are prepared, how strikes are set, and how a job is tested before the customer is left with it.

We answer the phone 24 hours a day, 7 days a week, year-round. Most installations are planned, but a door that has been kicked in, a lock that has been tampered with, or a new tenant who cannot secure a door tonight are not things that wait for office hours.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

Lock installation around Cerritos: tract homes, Shadow Park, and the Industrial Park

Cerritos was Dairy Valley farmland until the 1960s and 1970s, and most of the housing is ranch and two-story stucco tract homes from that era, largely owner-occupied. That shapes the installation work we see. Many owners have lived in the same house for a long time, and the hardware on their doors may be as old as the house. When a front door lock fails or a back door never had a proper lock, we often fit new locks on doors that have been carrying the same hardware for decades, so we pay attention to how the frame and strike area have aged. If your home is in Cerritos Terrace, near Concord Place, or anywhere in the 90703 ZIP code, the process is the same: we inspect first, then we fit.

Shadow Park is a gated enclave of roughly 394 homes built in the late 1970s, with staffed gate access. The gate controls who enters the neighborhood, but it does not lock any individual front door. Homes there still need properly fitted entry hardware, and that is a separate job from the community gate itself. If your concern is the gate mechanism rather than a house door, see gate lock repair.

Townhomes and condos near Cerritos Towne Center and along the major corridors, including Carmenita Road and South Street, often have fewer doors but tighter rules. Some associations specify hardware finishes or require approval before exterior changes, so check your community rules before choosing a lock. We are happy to talk through options that suit both the door and any restrictions you have.

On the business side, the Cerritos Industrial Park has warehouse and office doors that need dependable locks and, often, several people with access. Retail doors around Los Cerritos Center and Cerritos Towne Center see heavy daily use. Commercial lock installation for those doors usually starts with a question about who holds keys and how the door is used, because that decides whether a standard keyed lock or something more structured is the right answer.

Weather is mild on the lock side. Cerritos is inland, with weaker marine influence than coastal cities, so salt corrosion is not a meaningful factor for hardware here. Summer afternoons run warmer, and a sun-exposed door can expand slightly. If a newly installed lock binds only in the afternoon heat, tell us; we check the clearance at the latch and strike when we fit it so the door still closes properly on a hot day.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What should you ask any locksmith before they install a lock?

Choosing a locksmith is partly a trust decision, and a few questions protect you.

California requires locksmith companies to hold a Bureau of Security and Investigative Services (BSIS) locksmith company license, known as an LCO. Ask any locksmith you are thinking of hiring for their license number, and you can check it with the state. That applies to us as it does to everyone.

Ask for a clear quote before work begins, including what is and is not covered, and whether any extra work such as door repair or strike reinforcement might be needed. Ask which hardware they are fitting and why. A good technician can explain the choice without jargon.

Be wary of anyone who quotes a vague low figure on the phone and then adds charges once they are standing at your door. If a quote changes, you should be told why before they continue. We would rather lose a job than start one on unclear terms.

If the lock is being installed after a break-in or a lockout, tell us. We will secure the door first and talk about longer-term options afterward. If you are locked out right now, our house lockout page covers that situation.

How do you book lock installation in Cerritos?

Call (213) 577-1366. We answer 24 hours a day, 7 days a week. Tell us the type of door, how many locks you need, whether you have the hardware already or want us to supply it, and what has prompted the job. A photo of the door edge and the existing lock helps if you can send one.

If you already own the lock you want fitted, we can usually install it, though we will check that it suits the door before we start. If you want recommendations, we can walk you through them on the phone and again at the door. You can also reach us through our contact page if you prefer to write.

Frequently asked questions

Can you install a lock I bought myself?

Usually yes. We check that it fits the door, the bore size, and the frame before we start, and we tell you plainly if the lock is a poor match. We can also supply and fit hardware if you would rather have us choose it.

What is the difference between lock installation and lock replacement?

Installation is fitting a lock where there was none, or adding another. Replacement means swapping an existing lock for a new one. The skills overlap, but the preparation differs. If your current lock is worn or broken, see our page on lock replacement in Cerritos; the link is lock replacement.

Do I need a new lock, or can you just rekey the one I have?

If the lock works well and you only need different keys, rekeying is usually the more economical route. If the lock is damaged, outdated, or not strong enough for the door, a new installation makes more sense. We tell you which one applies after looking at it.

Can you install mortise locks on older doors?

Yes, where the door edge is sound enough to hold one. If the door already has a mortise pocket, we can often fit a new body without altering the door. We confirm what is possible on site, because pocket sizes and door condition vary.

Do you install locks on commercial and warehouse doors in Cerritos?

Yes. We handle commercial lock installation on offices, retail doors, and warehouse entries, including the Cerritos Industrial Park. We ask about key control, door use, and any fire or exit requirements before recommending hardware.

Will a new lock work with my existing key?

Often it can be set up that way, depending on the lock brand and type. Some customers want every exterior door on one key, and we can plan for that. Tell us at the start so we choose compatible hardware.

Can you install a lock at night or on a weekend?

Yes. Our phone is answered 24 hours a day, 7 days a week, year-round, so you can call at (213) 577-1366 at any hour. Out-of-hours work can be priced differently from daytime appointments, and we explain that when you call.

Is your company licensed to work in California?

California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for their number before hiring. Ask us when you call and we will walk you through how to verify it with the state.

More locksmith help in Cerritos

Lock Installation near Cerritos

Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

Ready for lock installation in Cerritos?

We answer around the clock, every day of the year.

Call (213) 577-1366
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