What does lock installation involve beyond swapping hardware?
Lock installation sounds simple until you are holding the door in your hands. A lock is only as good as the door it sits in, the hole it was bored into, and the strike plate it latches against. A new lock fitted into a sloppy bore, a loose frame, or a strike held by two short screws will feel fine on day one and fail the first time someone leans hard on the door. That is why we treat installation as carpentry and hardware fitting together, not a quick exchange of parts.
This page covers putting a lock where there was none, or fitting a door with a different type of hardware: front doors, secondary doors, rear units, security screen doors, gates, and commercial doors. If your existing lock works and you only want different keys, that is a different job, and rekeying is usually the more economical route. If a lock is worn out or damaged and you want the same function back, that is closer to lock replacement. We will tell you honestly which of those you actually need before we start drilling.
Which type of lock should go on which door?
There is no single right lock. The answer depends on the door material, its thickness, how the door is used, and who has to operate it every day. Here is how we usually sort it out.
After we look at the door and talk through how you live or run your business, we recommend one option and explain why. If you want to compare, we will lay out the alternatives plainly.
- Front door lock installation: usually a keyed deadbolt paired with a knob, a lever, or a combined handleset. The deadbolt does the real security work; the handle holds the door shut and gives you something to grip.
- Interior and utility doors: simple latch sets, sometimes with a privacy thumb-turn. These are not security locks, and we will not pretend they are.
- Security lock installation: a deadbolt with a reinforced strike and long screws that reach the framing, or a higher-grade cylinder where the situation calls for it. Our page on high-security locks goes deeper on that end of the range.
- Mortise lock installation: a lock body set into a deep pocket cut in the door edge. Common on older doors and on many commercial and storefront doors.
- Lever lock installation: lever handles on cylindrical or mortise bodies. They are easy to operate with a full hand, an elbow, or arms full of groceries, and they are common in commercial settings.
- Commercial lock installation: hardware chosen around heavy daily use, exit requirements, and sometimes a key system shared across several doors.
- Gate and shared-entry locks: weather-exposed hardware that several people use, which changes the choice of materials and keying.
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Call (213) 577-1366How do we install a new lock, step by step?
Every door is a little different, but the sequence is consistent. We follow it whether the job is one front door or a row of doors on a small complex.
- Look at the door first. We check material, thickness, condition, how it hangs, and whether it swells, sags, or rubs the frame.
- Confirm what you need the lock to do: keep out intruders, allow easy family access, meet a building requirement, or match other keys on the property.
- Choose hardware that fits the door's existing preparation where possible, or plan the new preparation if the door has none.
- Mark and prepare the door. For a new bore we use a template and proper hole saws, and for a mortise we cut the pocket to the lock body, not the other way around.
- Install the lock body, cylinder, and trim, checking that latch and bolt move freely before anything is tightened down.
- Fit the strike plate and, on exterior doors, reinforce it with screws long enough to bite into the framing rather than just the trim.
- Test with the door open, nearly closed, and fully closed, then test with the keys. If a door has to be lifted, tapped, or shouldered to latch, the job is not finished.
- Walk you through the keys, any thumb-turn or lever operation, and how to tell if something starts to loosen. Extra keys can be added through key duplication if you need them.
What is different about mortise and lever lock installation?
A mortise lock sits inside a rectangular pocket cut into the edge of the door, rather than a round hole through its face. Many older doors have them, and so do a lot of commercial doors. The pocket has to be cut to the size of the lock body, and wood that is removed does not come back. For that reason we are careful with mortise work, and we do not rush it.
When there is already a mortise pocket, the lighter-cost path is often to keep the existing body and change the cylinder or trim. If the body is worn, damaged, or no longer made, we may need to fit a replacement body with matching dimensions, or modify the pocket. We explain which situation you are in before any cutting starts.
Lever lock installation has its own details. The handle needs the correct backset, the lever needs to clear the frame and any nearby wall or trim, and the return spring has to be strong enough that the handle does not droop over time. A drooping lever is often a sign of a poorly fitted lock, and it is annoying to live with. We check lever swing and clearance before we call a job complete.
If your door has no preparation at all and you want a lever or a mortise lock, say so up front. That is a bigger job than fitting a standard bored lock, and it is better to plan for it than to find out partway through.
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We answer around the clock, every day of the year.
Call (213) 577-1366Residential versus commercial lock installation: what changes?
At a house, installation is mostly about security, convenience, and matching keys. You want the front door to feel solid, the back door to be at least as strong, and a key setup that suits your household. Families often want one key for several doors; renters often want a lock the next tenant cannot use.
In a business, the questions multiply. Who needs keys, and who does not? Does the door have to be unlocked during open hours without being propped? Is it an exit door, which generally has to let people leave without a key or special knowledge? Does it need a closer, a panic bar, or both? Commercial lock installation is planned around those answers, and we often end up recommending hardware that looks unremarkable but is rated for the traffic.
Because we are a storefront shop and not a dispatch center, we can bring the right hardware to a commercial door instead of guessing. If a lock is part of a bigger set of doors, we can plan keying across all of them so a master key actually makes sense. Tell us how many doors you are dealing with when you call.
What does lock installation look like in Lawndale?
Lawndale is a compact city of modest 1940s and 1950s single-family homes on small lots, many with rear units or converted garages. Garden-style apartment buildings and small complexes line Hawthorne Boulevard and the other major corridors, and security screen doors are common on older stock. There has been little recent large-scale development, so a lot of the door and lock hardware in 90260 dates to earlier decades. That shapes how we approach installation here.
On the older bungalows, the common job is a front door with worn or mismatched hardware, or a second entry that never had a proper deadbolt. Rear units and converted garages are their own category. A converted garage door was often never meant to be an entry door, so we look hard at how it hangs, what the frame is made of, and whether the strike will actually hold. A rear unit usually deserves its own lock and its own keys, separate from the main house. If you are mostly after new keys on existing locks, that is a rekeying job instead, and it is worth asking us about before you pay for new hardware.
Along the Hawthorne Boulevard corridor, the Inglewood Avenue corridor, and the Redondo Beach Boulevard corridor, small complexes and duplexes bring a different set of installs: shared-entry doors, gates, and individual unit doors that need keying that makes sense for the property. Landlords and managers who handle several of these can read about locksmith services for landlords, where the focus is on keeping a property's keys manageable.
Businesses on Hawthorne and Artesia Boulevards often need a new lock fitted to a storefront or back door. Those jobs go quickest when we know the door type in advance, so a short description or a photo helps. If the lock you have is damaged rather than missing, see our storefront lock repair page.
Homes near El Camino Village and near Alondra Park fit the same pattern as the rest of the city: older doors, small lots, and hardware that has been through a few owners. Our storefront is in Westwood, about 16 miles away, and our mobile vans come to you, so there is no need to carry a door anywhere. If you want to know how mobile visits work, see our mobile locksmith page.
One more local detail matters for installation. Lawndale sits a few miles inland on the coastal plain, inside the marine layer belt but far enough from the surf that salt-air corrosion is modest. Damp mornings and summer afternoon heat produce routine swelling and sticking in older wood doors. A door that swells will bind a new lock just as it binds an old one, so we check how the door moves through the seasons and fit the latch and strike with some tolerance, rather than a tight fit that works only on a cool morning. Sometimes the right fix is as simple as easing the door edge before the lock goes in.
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We answer around the clock, every day of the year.
Call (213) 577-1366What affects the cost of lock installation?
We do not quote numbers on a web page, because the honest answer depends on the door and the hardware, and a number written here would not be true for every job. What we can do is tell you what moves the cost up or down, so there are no surprises when we talk on the phone or look at the door.
- The lock itself: a basic bored lock, a mortise body, a higher-grade security lock, and a commercial-grade lever set are very different products.
- Door preparation: a door that already has the right holes is quicker than one that needs new bores or a freshly cut mortise.
- Door and frame condition: a swollen, warped, or split door or frame may need work before any lock will sit right.
- Number of locks and doors: several locks on one visit, keyed alike, generally make more sense than separate trips.
- Keying: matching existing keys, keying alike across doors, or setting up a master key system adds planning and parts.
- Door material: solid wood, hollow-core, metal, glass-panel, and security screen doors each need different handling.
- Timing: after-hours and urgent calls involve different logistics than a scheduled daytime visit.
- Reinforcement: heavier strikes, longer screws, or added plates for exterior doors add parts and time.
Why call Wilshire Lock & Key for installation?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties, Lawndale among them. The work is done by our own technicians, working from our Westwood storefront at 10740 Wilshire Blvd and from our mobile service vans. You are not routed through a dispatch middleman who has never seen your door.
David is the owner and lead technician, and he oversees the work. That matters for installation in particular, because the difference between a good install and a bad one is rarely in the lock. It is in the fitting, the alignment, and the small decisions nobody sees afterward.
We answer the phone around the clock, every day of the year, at (213) 577-1366. If you need a lock fitted after a break-in, or a new door secured before you leave town, you will reach us. For urgent situations, our emergency locksmith page explains how that works, and our 24-hour locksmith page covers the overnight side.
How do you vet a locksmith before they install anything?
California requires locksmith companies to hold a BSIS LCO license. Ask any locksmith for the license number before they start work, and check it with the state. That applies to us as it does to everyone else. A company that dodges the question is telling you something.
A few other habits are worth watching for. A trustworthy installer looks at the door before talking about hardware. They explain what is wrong and what the options are. They do not insist on drilling a lock that could be rekeyed, and they do not bring a price that changes once the door is open.
To help us help you, have a few things ready when you call:
- Which door, and whether it is wood, metal, glass, or a security screen door.
- Whether the door already has a lock, a bore, or a mortise pocket.
- What you want the lock to do, and who needs keys.
- Any known problem with the door, such as sticking, sagging, or a loose frame.
- A photo of the door edge and the current hardware, if you can send one.
Frequently asked questions
Can you install a lock on a door that never had one?
Yes. We prepare the door with a template and the right tools, fit the lock, and reinforce the strike plate. If the door is hollow, thin, or in poor condition, we will tell you before we cut anything, because the lock will only be as strong as the door around it.
Do I have to buy the lock myself, or do you supply it?
We supply hardware and can install a lock you already bought, as long as it fits the door and is suited to the job. If you bought something unsuitable for the door, we will say so plainly, and we will explain what would work better.
Can new locks be keyed to match the ones I already have?
Often, yes. We can key new locks to match existing ones or key several doors alike, so one key works throughout. Some existing locks limit what we can match, and we confirm that at the door. For adding keys later, see our key duplication page.
How long does a lock installation take?
A single standard lock on a sound, already-prepared door is generally a short visit. A new bore, a mortise pocket, a swollen door, or several doors takes longer. We tell you what to expect once we have seen the door, and we would rather be accurate than quick.
My wood door sticks in summer. Will a new lock fix that?
Not by itself. In older Lawndale homes, damp mornings and summer heat can make wood doors swell, which binds the latch. We check how the door moves, ease the edge if needed, and fit the latch and strike with proper tolerance, so the lock works in every season.
Can you install locks on security screen doors?
Yes. Security screen doors are common on older homes here, and they need hardware made for their frames and thickness. We look at the frame first, because a strong lock on a flimsy frame does not add much protection.
Can you fit a lock on a rear unit or a converted garage door?
Yes. These doors were often not built as entry doors, so we check how they hang, what the frame is made of, and whether a strike will hold. A rear unit generally benefits from its own lock and keys, separate from the main house.
Do you install locks for businesses on Hawthorne and Artesia Boulevards?
Yes. We handle commercial lock installation on storefronts and back doors, including mortise and lever hardware, and we plan around exit requirements and daily traffic. Call (213) 577-1366 and tell us the door type, and we will take it from there.
More locksmith help in Lawndale
Lock Installation near Lawndale
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
