Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Get your free estimateFast, Reliable Emergency Locksmith Across Altadena
Locked out? Need a lock rekeyed after a tenant move or a builder’s handover? An emergency locksmith in Altadena typically costs $85 – $220 for a standard lockout, $60 – $180 per cylinder for rekeying, and $150 – $350 for broken key extraction depending on the lock type and time of day. Greystone Locksmith serves homes from the foothills down through 91001 and 91003, with most emergency calls reached within 30 – 45 minutes. Call (866) 497-9415 and we’ll give you the full price on the phone before anyone rolls a truck to you.
We know Altadena’s houses because we work on them every week. The Craftsman bungalows off Lake Avenue with original mortise locks. The mid-century ranches east of Lincoln. The newer infill builds near Loma Alta Park, where builder’s keys sometimes still work long after closing. Our Emergency Locksmith team carries vintage mortise parts, modern high-security cylinders, and the tools to do non-destructive entry on a 1920s solid-core door without chewing up the millwork.
Why Greystone Locksmith Is Altadena’s Preferred Emergency Locksmith Company
Altadena calls us because we show up prepared for the lock in front of us. Not just the brands we prefer. Gil Tanner built Greystone Locksmith around brand fluency across eight lock lines, from everyday Kwikset to high-security Medeco and commercial-grade Sargent. That matters here because Altadena housing stock is a patchwork. One house has an original 1912 mortise lockset with skeleton-key internals. The next is a 2023 infill with builder-grade Schlage pin-and-tumbler cylinders that were never rekeyed after the subcontractors left.
We work non-destructive entry whenever the situation allows. On a Craftsman door with original hardware, drilling a lock can destroy a part that isn’t made anymore. Our techs are trained to pick or bypass first, and only drill when there’s genuinely no other way in. That local judgment is why homeowners along Mariposa Street, Casitas Avenue, and the winding roads above Altadena Drive keep our number in their phones.
We’re certified to service eight major lock brands including high-security lines: Medeco, Mul-T-Lock, and Abloy. That means a single Greystone visit can handle a Baldwin entry set, a Yale deadbolt on the back door, and a smart lock that never got properly paired to the home’s keypad entry system.
Styles & brands we work with







Our Emergency Locksmith Services in Altadena
24/7 Emergency Lockout in Altadena
Lockouts in Altadena happen at all hours. A driver locks their keys in the car at the trailhead off Chaney Trail Drive. A homeowner steps onto the back porch near Rubio Vista Road and the door swings shut behind them. Our emergency lockout service runs around the clock, and we quote the full price before dispatch. No call-out surcharge added when we arrive. The number we quote is the number on your invoice.

Broken Key Extraction in Altadena
Broken keys are common in Altadena’s older homes, and the reason is usually the lock, not the key. A 1920s mortise lock with decades of wear will snap a worn brass key under just a little pressure. We extract the broken piece without damaging the cylinder, then we check whether the lock itself needs rebuild work or replacement. For newer homes, broken keys often trace back to builder-grade cylinders with rough internal tolerances. We service both.

House Lockout in Altadena
A house lockout here is not always a lost key. Sometimes the lock is the problem: a warped wooden door from Santa Ana season heat, a deadbolt that stopped throwing because the strike plate shifted, or a smart lock that lost calibration and won’t accept the homeowner’s code. We diagnose it on the spot and fix the actual cause. If rekeying is the smarter move than replacing hardware, we’ll tell you that plainly. Altadena homeowners often find rekeying costs less than they expected and gets the same security result.

Eviction Lock Change in Altadena
For landlords and property managers in 91001 and 91003, an eviction lock change has to be prompt, legal, and documented. We rekey or replace locks, provide a clear work record, and can match new cylinders to an existing master-key system if the property uses one. Most eviction lock changes in Altadena take 45 – 90 minutes per unit, and we schedule them around the court-ordered possession time so the property secures the same day.

What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Altadena
We work on Kwikset service in Altadena, Schlage, Yale, Baldwin, Medeco, Mul-T-Lock, Sargent, and Abloy. That range matters in Altadena because the hardware here runs a wide gamut. A Craftsman on Maiden Lane might have an original Baldwin entry set a homeowner wants to keep and restore. A newer build off New York Drive might have a Yale smart lock that was never properly synced to the keypad entry system. We stock common cylinders, mortise cassettes, and modern deadbolt replacements on the truck, so most jobs finish in one visit. High-security hardware like Medeco and Abloy requires a locksmith who knows it cold. That’s us.
Common Emergency Locksmith Problems We See in Altadena Homes
- Original skeleton-key mortise locks failing on Craftsman doors. These locksets are often 100 years old, and when the internal springs or wards wear out, the key stops turning or the bolt won’t throw. We rebuild or retrofit them rather than hacking a modern cylinder into a door that was never prepped for it.
- Builder’s keys still active on newer infill homes. After closing, the original builder’s key sometimes still operates the deadbolt because the locks were never rekeyed. We see this routinely in Altadena’s newer construction near Loma Alta Park and the foothill edge. Rekey every exterior cylinder the day you take possession.
- Seasonal door warp from heat and Santa Ana winds. Altadena’s hot, dry summers and fall wind events cause solid wood doors to swell, bow, or shift slightly, which throws the deadbolt out of alignment with the strike plate. It often presents as a lock that “won’t open,” but the fix is usually an adjustment, not a new lock.
- Smart locks installed on old mortise doors without proper prep. We’re called to undo or redo a lot of DIY smart lock installs where the door prep didn’t match the lock’s requirements, leaving the home either insecure or with a deadbolt that jams. A smart lock has to integrate with the existing mortise or cylindrical prep, or it will fail at the worst possible moment.
Pricing for Emergency Locksmith in Altadena, CA
A residential lockout in Altadena typically runs $85 – $150 during standard hours and $150 – $250 for late-night or early-morning calls. Rekeying a standard pin-and-tumbler cylinder runs $60 – $180 per lock, depending on whether it’s a standard Kwikset or a high-security Medeco that requires specialized key blanks. Broken key extraction runs $75 – $175. Eviction lock changes for a single-family home typically total $150 – $300 for a full exterior rekey. These are honest Altadena market ranges, not teaser prices. The quote we give on the phone is the price on the invoice. Call (866) 497-9415 for a free estimate on your specific situation.
We Also Serve Cities Near Altadena
Greystone Locksmith covers Altadena and the surrounding foothill communities, including Emergency Locksmith in Altadena, Pasadena, La Cañada Flintridge, East Pasadena, and San Marino. If your property sits near the city line, or if you manage units across several of these neighborhoods, one call handles the whole area.
Serving Altadena, CA — Our Local Coverage Area
We’re based in the Altadena area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Emergency Locksmith in Altadena
Because the builder’s key may still open your door. Construction crews, subcontractors, and real estate agents typically had access to that key throughout the build and listing period, and it’s common for new Altadena infill homes to close with the original builder’s cylinders still installed. Rekeying all exterior locks the day you take possession, which typically runs $60 – $180 per lock in Altadena, eliminates every unknown key. It’s one of the cheapest security actions you can take on a new purchase. Call (866) 497-9415 to schedule a rekey before you move furniture in.
Yes. Most builder-grade locks use standard cylindrical door prep, which means we can swap the cheap cylinders and interior mechanisms for ANSI Grade 1 hardware without drilling new holes or replacing the door trim. In many Altadena infill homes, we simply rekey the existing cylinders to new keys and upgrade the deadbolt internals to a commercial-grade Schlage or Medeco assembly. The door stays, the hardware gets stronger. We’ll tell you whether a full replacement is worth it or a cylinder upgrade does the job.
Yes, and this is one of the more common post-purchase calls we get from Altadena’s newer builds. The problem is usually the installation, not the lock: a misaligned deadbolt that binds and drains the motor battery, a hub placed too far from the lock, or a Yale or Kwikset smart lock that was never properly paired to the existing keypad entry system. We diagnose the connection path, re-align the bolt or replace the strike plate if needed, and test the lock across the home’s Wi-Fi or Z-Wave network before we leave. Call for a service visit, and we’ll quote the fee upfront.
Yes. We answer emergency lockout calls 24 hours a day, seven days a week, throughout 91001 and 91003, including the foothill roads above Altadena Drive and the neighborhoods around Mariposa Street, Casitas Avenue, and Lincoln Avenue. After-hours lockout pricing in Altadena typically runs $150 – $250. We quote the total price on the phone before we dispatch, and there’s no added call-out surcharge when we pull up. Call (866) 497-9415 and a technician will be on the way.
Stop turning it, and don’t try to dig the broken piece out with a paperclip or a screwdriver. That usually pushes the fragment deeper and can damage the cylinder. We extract broken keys from mortise locks on older Altadena homes and from modern pin-and-tumbler cylinders in newer builds. The extraction runs $75 – $175, and in most cases we can reuse the existing lock and cut a fresh key. If you’re locked out with a broken key, call (866) 497-9415 and we’ll send a tech to you.
One More Thing We’ve Seen in Altadena
We recently handled a builder’s-key handover at a new infill home near Altadena’s foothill edge. The owner discovered the construction key still worked after closing. Our tech rekeyed all the exterior Schlage deadbolts and lock cylinders, then upgraded the builder-grade hardware to ANSI Grade 1 and synced a new smart lock with the existing keypad entry. We did non-destructive entry to avoid damaging the new door, and the home was secure the same day. That’s the kind of job this page exists to explain.
If you’re locked out, locked up, or locking down a property in Altadena, call (866) 497-9415. A real locksmith answers, we quote the full price before dispatch, and we get there ready for whatever lock you have.
Written by Gil Tanner, Owner at Greystone Locksmith, serving Altadena and the San Gabriel foothills.