Non-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.
Fast, Reliable Rekey Locks Across South Pasadena
Rekeying locks in South Pasadena typically costs $25 to $45 per cylinder, and most houses with three exterior doors wrap up in under an hour. That’s the honest range we quote before we dispatch, not after the work is done. If you’ve just closed on a 1920s bungalow off Mission Street or you had a roommate move out of an apartment near Garfield Park, rekeying with our Residential Locksmith in South Pasadena is the fastest way to make old keys stop working without replacing your hardware. Call us at (409) 405-4485 and we’ll walk you through exactly what your job will cost before you ever see a technician at your door.
We know South Pasadena housing. Solid wood doors with settled frames, mortise lock bodies from the 1930s, narrow backsets, deadbolts that have been painted over three times. Those are the locks we rekey every week. A generic locksmith who only knows modern pin-and-tumbler cylinders can turn a 45-minute rekey into a half-day headache here. We don’t.
Key takeaways:
- Rekeying a standard cylinder runs $25 to $45 per lock, written price confirmed before we start
- Most South Pasadena homes with three exterior doors are done in under an hour
- We handle original mortise locks on pre-1940 bungalows without drilling or replacing hardware unnecessarily
- Every job includes the 365-Day Done Right Promise and a written guarantee
- Call (409) 405-4485 – a live person answers, 24/7
Why Preston Locksmith & Security Is South Pasadena’s Preferred Rekey Locks Company
Most of our South Pasadena calls come from homeowners who already tried a handyman rekey or a cheap mobile locksmith once and ended up with a deadbolt that binds against the strike plate. Our Rekey Locks team fixes those first attempts, which usually means pulling the cylinder, inspecting every pin and spring, and correcting misalignment caused by a door that settled decades ago.
Kevin Yoon founded this company in 2008, and the standard he set then is the same one our techs work under now in South Pasadena: a background-checked, uniformed technician, a written price before any tool leaves the bag, and a live arrival time you can track from your phone. No anonymous van showing up four hours late. No bill that grows between the estimate and the invoice.
We answer the phone ourselves. 24/7. If you call from South Pasadena at 9 PM because you just got the keys to a new place on El Centro Street and don’t want the previous owner’s keys floating around, you’ll talk to a person who can schedule your rekey right then. Not a voicemail tree.
Rekey Deadbolt in South Pasadena
Rekey Deadbolt work in South Pasadena means swapping the internal pins in your existing deadbolt cylinder so the old key stops turning and a new key takes over – no new hardware, no door modifications, and typically $25 to $45 per cylinder in this market. Older South Pasadena homes often have deadbolts with a narrow backset, which doesn’t change the rekey process itself but does mean the cylinder has to be pulled and reinstalled carefully to avoid throwing off the latch alignment. If your deadbolt has been painted over, which is common on bungalows near the Fair Oaks corridor, we clean up the cylinder face as part of the job so the key slides in smoothly again.
When a South Pasadena homeowner needs this
You need a deadbolt rekey after a tenant moves out, after keys go missing, after a contractor or cleaner had a copy, or after closing escrow on a house where the previous owner’s key history is unknown. For most South Pasadena homes we see, that’s one or two exterior deadbolts plus a knob or lever below each. The whole job usually lands between $100 and $180 total, including all cylinders and new keys.
Writing the price before we arrive
Every deadbolt rekey starts with a phone call where we confirm the lock brand, the number of cylinders, and the condition of the hardware. Then we send a written price. That price is the price on the invoice – no surprise trip fee added when the truck pulls up, no upsell to a new deadbolt unless yours is genuinely worn past the point of safe repair.
Rekey House in South Pasadena
Rekey House service in South Pasadena covers every exterior door on the property, from a single-family bungalow with three entry points to a two-story Spanish Colonial with detached garage and side gate hardware. We rekey all cylinders to match a single new key, so one key works every door, and we test each lock for bind, drag, and smooth throw before we call the job done. A typical three-door house in the 91030 ZIP runs $150 to $225 in total, depending on cylinder count and whether any lock needs new pins beyond a standard rekey.
What gets inspected during a full house rekey
We don’t just blow through cylinders in 20 minutes. On every house rekey in South Pasadena, we check strike plate alignment, hinge sag, deadbolt throw, and whether the door frame has shifted. Homes built before 1940 settle, and a rekey that ignores a settling door leaves you with a lock that works at noon and binds at midnight when the wood cools and contracts. We fix what we find, then price any additional lock repair separately in writing before doing any work beyond the rekey.
New keys, same day
In most cases, you get your new keys the same day we start, because we cut keys on site for Schlage, Kwikset, Medeco, and Yale cylinders. No waiting for keys to ship, no second trip. If your schedule only allows evening or weekend work, tell us when you call – we dispatch to South Pasadena seven days a week and our phones never roll to voicemail.
Trusted Brands We Service in South Pasadena
Our techs rekey Schlage, Kwikset, and Medeco hardware every day, along with Baldwin, Yale, and Mul-T-Lock cylinders when they show up on South Pasadena doors. The difference with Medeco and Mul-T-Lock is the key control: you can’t copy a key at the hardware store without your owner card, which matters if you’re rekeying a rental or an ADU behind your house near Arroyo Drive. We stock pins, springs, and replacement cylinders for all of these brands on our service vehicles, which means a South Pasadena rekey doesn’t stall out for a part run across town. If you have an older Kwikset knob with a worn pin stack, we replace the pins before we hand you the new key – not after you’ve locked yourself out again.
Common Rekey Locks Problems We See in South Pasadena Homes
- Handyman rekey that left the cylinder misaligned. A partial rekey that doesn’t account for a settled door frame leaves the deadbolt binding against the strike plate. We see this most often on pre-1940 bungalows where the frame has shifted a sixteenth of an inch over eighty years.
- Drilled cylinders from a previous lockout. Some locksmiths drill first and ask questions later. On South Pasadena’s original solid wood doors, that means a destroyed cylinder and a bigger repair bill. We always attempt non-destructive entry before any drilling, and we say so on the phone before we arrive.
- Partially rekeyed master key systems on inherited houses. You move into grandma’s house near Garfield Park and discover the front door takes the new key but the back door still turns with the old one. That’s a mismatch in the cylinder pins – not a reason to replace hardware. We inspect every cylinder and rekey the stragglers to match.
- Painted-over cylinders and sticky keyways. South Pasadena contractors love paint, and lock cylinders catch overspray. A painted cylinder doesn’t always need replacement, but it does need the face cleaned and sometimes a pin or two swapped before the new key turns smoothly.
Pricing for Rekey Locks in South Pasadena, CA
A standard rekey in South Pasadena runs $25 to $45 per cylinder. Most houses with three exterior doors and a couple of knob or lever cylinders land between $150 and $225 all-in. South Pasadena Commercial Locksmith work on storefronts along Mission Street or Fair Oaks with multiple doors and possibly a mortise lock or two generally runs higher, often $300 to $500, because mortise lock rekeys take more disassembly and inspection time. A full house rekey including a detached garage and a side gate runs $200 to $300 depending on the number of cylinders. Every quote is a written, flat price confirmed before we dispatch to South Pasadena. There is no trip fee, no call-out surcharge added on arrival, and no upsell to a replacement lock unless your existing cylinder is genuinely unsafe. Call (409) 405-4485 for an exact quote on your home.
We Also Serve Cities Near South Pasadena
Beyond South Pasadena proper, our techs regularly cover rekey jobs in Alhambra, San Marino, Pasadena, and San Gabriel. If you’re in one of those cities and need Rekey Locks in South Pasadena service standards, the same written-price guarantee and 24/7 live-answer phone line apply.
Serving South Pasadena, CA - Our Local Coverage Area
We’re based in the South Pasadena 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 About Rekey Locks in South Pasadena
We rekey original mortise locks in South Pasadena bungalows without replacing the lock body. A mortise lock rekey involves removing the cylinder from the lock body, swapping the internal pins so the old key stops working, and reinstalling the cylinder with fresh springs if the originals are sticky. In most cases, original mortise hardware is worth keeping – the brass bodies from the 1920s and 1930s are often sturdier than anything you’d buy at a big-box store today. We’ll tell you honestly if a mortise lock is too worn to rekey safely. Call (409) 405-4485 and we can talk through what’s on your door before scheduling.
A three-door rekey in South Pasadena takes about 45 minutes to an hour from the time we arrive at your door. That includes pulling each cylinder, swapping the pins, cutting new keys on site, and testing every lock for smooth throw and proper strike alignment. Older homes with settled doors can add 15 or 20 minutes if we’re also correcting strike plate alignment. We’ll give you a time estimate when you call, and your live arrival time is tracked on your phone so you aren’t waiting in a four-hour window.
We give you a written price before dispatching to South Pasadena, and there is no trip fee and no surcharge added when the technician arrives. The price you get on the phone is the price on the invoice. This trade has a known problem with bait pricing – a lowball quote that swells after the work starts – and we built our whole process to eliminate that. Every job starts with a written price, confirmed by you, before any work begins.
You’ll see the technician in a Preston Locksmith & Security uniform with a company ID, and your live arrival tracking will show the same technician’s name and photo before they knock. We send before-and-after photos of every job as part of The Relay Visibility Guarantee, so you’ll have a record of exactly what was done to each lock. If anything looks different from what we described on the phone, ask the tech to walk you through the written price again before work starts.
Most smart locks and keypad deadbolts in South Pasadena have the same standard cylinder inside the electronic housing, which means we can rekey them to match your other doors without replacing the lock. Brands like Kwikset Kevo and Schlage Encode use a standard pin-and-tumbler cylinder behind the keypad, so a rekey usually works fine. If your smart lock is a non-rekeyable proprietary model, we’ll tell you directly and give you a written price for a replacement that works with your existing app. Call (409) 405-4485 to confirm what’s on your door.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving South Pasadena since 2008.






