Lock Installation in Altadena, CA

What does lock installation actually involve?

Lock installation sounds simple until the door pushes back. A lock is only as good as the hole it sits in, the strike plate it meets, and the frame behind that plate. Most of what we do on an installation call is not turning screws. It is checking that the door, the bore, the latch alignment, and the frame will actually let the new hardware do its job for years instead of months.

People call us for new lock installation in Altadena for a handful of different reasons: a door that never had a proper lock, a rebuilt house that needs every exterior door fitted, a front door with a worn set being swapped for something sturdier, or a business opening a new space. Each one is a different job, and we try to work out which one it is on the phone before we show up.

This page is about fitting new hardware. If your lock works fine and you only want different keys to operate it, that is rekeying, and our lock rekeying service covers it. If a lock is damaged, failing, or past saving and you want the same kind of unit swapped out, that is closer to lock replacement. Plenty of calls start in one category and end up in another, and we will tell you plainly which one you need rather than sell you the bigger job.

Which kind of lock does your door need?

The right lock depends on the door, the frame, and what you are protecting. Here is how we think about the common types.

• Front door lock installation: the entry door gets the most attention. It usually pairs a deadbolt with a handle set, or a lever or knob with a separate deadbolt. We look at the door's thickness, the existing bore size, and whether the frame can take the load of a hard kick.
• Deadbolts: a deadbolt is the single most useful upgrade on most exterior doors. We cover the specifics on our deadbolt installation page, including single-cylinder versus double-cylinder choices.
• Lever lock installation: lever handles are easier to operate with a full hand, an elbow, or an armful of groceries, which is why they show up on commercial doors and in homes where easy operation matters. Lever sets come in privacy, passage, and keyed entry versions, and picking the wrong function is the most common mistake we see.
• Mortise lock installation: a mortise lock sits in a rectangular pocket cut into the edge of the door, with the lock body hidden inside. It is common on older, heavier doors and on many commercial doors. If the pocket already exists, we match a new body to it. Cutting a new pocket into a door that never had one is a bigger, more careful job, and not every door is a good candidate.
• Security lock installation: this means higher-grade cylinders, reinforced strike plates, longer screws that bite into the framing, and sometimes a door-edge or frame reinforcement. The lock itself is only part of it. A strong cylinder in a weak frame still fails at the frame.
• Smart and keypad locks: if you want keyless entry, see our page on smart lock installation. The mechanical fitting is the same craft, with extra attention to battery access and door alignment.

How we install a new lock, step by step

We keep the process the same on every job so nothing gets skipped, whether it is one door or twelve.

1. You call (213) 577-1366 and tell us the door type, what is on it now (or that it is bare), and what you want it to do. We ask a few questions about thickness, material, and who needs keys.
2. We come to you with stock on the van. Our mobile locksmith vans carry a range of cylinders, deadbolts, lever sets, strike plates, and the cutting tools to fit them, so most jobs finish in one visit.
3. We inspect the door and frame before touching anything: is the door square, is the latch side solid, is the frame split or loose, does the existing bore match standard sizes.
4. We talk through the options and the factors that will affect the cost, then confirm the plan with you before any drilling starts.
5. We prepare the door. That may mean marking and drilling a new bore with the proper hole saws and jig, cleaning up an old bore, or chiseling a mortise pocket and a faceplate recess to the exact depth.
6. We fit the lock, set the strike plate, and drive proper-length screws into the framing instead of just the thin trim. We then adjust until the bolt throws freely without the door being pushed or lifted.
7. We test the lock repeatedly with the door open and closed, hand you the keys, and show you how any unusual hardware works. If the job involved several doors, we can key them alike so one key does the lot.

What affects the cost of lock installation in Altadena?

We do not quote numbers on a web page because the honest answer depends on the door in front of us. What we can do is tell you exactly what moves the cost up or down, so there are no surprises when we give you a figure on the phone or on site.

• The hardware itself: a basic grade of deadbolt costs less than a high-security cylinder or a commercial-grade mortise body. Finish and brand matter too.
• The number of doors: fitting several doors in one visit is usually more economical per door than separate trips, and keying them alike saves on keys.
• Door and frame condition: a clean, standard-bore door is a quick job. A warped door, a cracked frame, or an oversized or damaged bore needs extra repair work.
• New cuts versus existing holes: drilling a new bore or cutting a new mortise pocket takes more time and skill than fitting into an existing, matching one.
• Door material: solid wood, hollow-core, metal, fiberglass, and glass doors each need different bits and techniques.
• Reinforcement: strike plate upgrades, door-edge guards, and frame reinforcement add parts and labor but meaningfully raise real-world security.
• Timing: a call in the middle of the night or on a holiday is handled differently than a scheduled daytime appointment. We will tell you how that applies before you agree to anything.
• Where the work is: Altadena is about 26 miles from our Westwood storefront, and travel to a site is part of the picture, which we will explain up front.

Lock installation for Altadena homes: rebuilds and surviving older houses

Altadena is an unusual place to be fitting locks right now. The area's housing stock was historically Craftsman bungalows, Janes Village cottages, and mid-century foothill homes. The January 2025 Eaton Fire destroyed thousands of structures, with West Altadena hit especially hard. The result is a community where new-construction door hardware sits next to original early-1900s locksets on blocks that came through intact.

That mix shapes the lock installation work we think about for 91001. For a home under reconstruction in West Altadena or East Altadena, the job is often fitting every exterior door from scratch: front door lock installation, back and side doors, garage service doors, and sliding-door hardware where applicable. We would rather fit these properly once the doors are hung and trimmed out than rush locks onto doors that will be adjusted later, and we will talk with you or your contractor about timing. Many builders want a temporary keyed setup during construction and a permanent set at the end. We can plan around that so the keys used by the framers and finish crews do not still work once you move in.

On surviving older blocks, such as around the Christmas Tree Lane district along Santa Rosa Avenue or in Janes Village, the work is more delicate. Original doors can be thinner, have older bores, or carry mortise pockets cut decades ago. Fitting a modern deadbolt into a vintage door takes care so the wood does not split and the original character is not butchered. Where an older mortise lock is part of the door's charm, we would rather help you keep it working and add a discreet deadbolt than gut the door. If all you want is new keys for the original hardware, that is our rekeying work.

La Viña, the gated hillside community at the northwest edge, has its own considerations: access arrangements for the gate, and homes where the entry doors are often substantial. Call us beforehand so we can coordinate arrival, and tell us if there is a guard or code to get in. Gate hardware itself is a separate specialty, covered on our gate lock repair page.

How does Altadena's foothill weather affect a new lock?

Altadena sits in a foothill microclimate. Summers run hotter than in the basin, and strong, dry Santa Ana winds come off the San Gabriels. Wind-blown grit and intense sun are the main wear factors on exterior doors and locks here, and we factor that into what we recommend.

Grit works its way into keyways and latch mechanisms and wears them from the inside. Strong sun bakes finishes, fades cheap plating, and can cause doors to expand and shift slightly, which in turn changes how a bolt lines up with its strike plate. A lock that slides smoothly in winter can bind in August if it was installed with no tolerance.

So on exterior doors in Altadena we lean toward hardware with finishes meant to take sun and weather, and we leave the right clearance between bolt and strike so seasonal movement does not turn into a stuck lock. We also tell customers to wipe off and occasionally lubricate cylinders with a dry lubricant made for locks, not oil that attracts dust. If a door faces west and takes the afternoon sun straight on, we will say so and adjust the recommendation.

What about commercial lock installation and securing build sites?

Not every call in Altadena is a house. We also handle commercial lock installation for shops, offices, and small buildings: keyed entry levers, mortise locks on heavier doors, exit-hardware-compatible latches, and cylinder upgrades. Commercial doors have different demands: heavier use, fire and egress considerations, and often a need for keys that are restricted or organized by role. For the larger hardware picture, including closers and exit devices, see our page on commercial door hardware.

With so much rebuilding going on, securing construction sites and vacant parcels is a real need. That means padlocks, hasps, and temporary gate locks that keep tools, materials, and equipment from walking off before the doors are even on. We can fit and key these to your needs, including setups where several contractors share access. The goal is a site that is hard to get into but easy for the right people to open every morning.

In both cases, we ask a few things up front: who needs access, who should lose it later, and whether the keys should be hard to copy. Answering those questions at installation is far cheaper and simpler than fixing a key-control mess down the road.

Why call Wilshire Lock & Key for lock installation?

There are plenty of ways to find a locksmith. Here is what we can honestly offer.

• In business since 1987. We have been fitting locks in Los Angeles for decades, and that experience shows up in the small judgment calls: when a door needs a repair first, when a cheaper-looking lock will not hold up, when to leave old hardware alone.
• A real storefront and mobile vans. We have a shop at 10740 Wilshire Blvd in Westwood, plus vans that come to you. The shop means there is a physical place behind the phone number.
• One company, no dispatch middlemen. The person who answers (213) 577-1366 works for us, and the technician who arrives works for us. Your job is not auctioned off to a stranger.
• David's oversight. David is the owner and lead technician, and he stays involved in how we do the work and how we treat customers.
• Always answered. We pick up 24 hours a day, 7 days a week, year-round. Most installations are not emergencies, but when a door is wide open after a break-in or a rebuild site is unsecured, you should not have to wait for business hours.
• Wide coverage. We serve 140 cities across Los Angeles and Ventura counties, and Altadena is one of them. See where else we work on our locations page.

What should you ask any locksmith before work starts?

California requires locksmith companies to hold a license through the Bureau of Security and Investigative Services (BSIS), called an LCO license. Ask any locksmith for that license number before they start, and be wary of anyone who dodges the question. You should also ask for the scope of the job and the factors that affect the final figure in plain language, and ask who will physically arrive.

A few more questions are worth asking. Will the work involve cutting or drilling the door or frame? What grade is the hardware? Who gets the original keys, and will they be restricted? Good answers are specific. Vague answers on installation usually mean surprises on the invoice.

If you are not sure what you need, or you are locked out of your car at a trailhead rather than fitting a lock, that is a different call: see our car lockout service. For anything else, our phone line is (213) 577-1366.

More locksmith help in Altadena

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

Lock Installation near Altadena

• Pasadena
• La Cañada Flintridge
• Sierra Madre
• South Pasadena
• San Marino
• Arcadia