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 Residential Locksmith Across Compton
You need a residential locksmith in Compton, and you need a straight answer on price and timing before anyone touches your door. That’s exactly how we work. Preston Locksmith & Security serves Compton homes from older bungalows near Compton Boulevard to newer builds off Alameda Street, with a written price agreed before we dispatch, a live trackable arrival time, and a background-checked technician in uniform at your door. Phones are answered by a live person 24/7. Call (409) 405-4485 and you’ll speak to someone who can quote the job, not a call center that puts you on hold.
What most Compton homeowners actually need is simple: a lock changed, a key replaced, a deadbolt installed, or a door that finally latches tight. What they don’t need is a vague hourly rate that balloons by the time the invoice shows up. We give you the full price over the phone before anyone is dispatched. That price is the price on the invoice. No doorstep renegotiation, no “well, this lock is older than we thought” surcharge.
Why Preston Locksmith & Security Is Compton’s Preferred Residential Locksmith Company
The Residential Locksmith team at Preston is built around one specific promise: you know exactly what you’re paying and exactly who is coming before the job starts. For 17 years, since 2008, we’ve built our reputation in Compton by refusing the industry’s default playbook of bait pricing and anonymous techs. Our founder, Kevin Yoon, set the standard from day one: background-checked, uniformed technicians who arrive with the parts on the truck. Not a follow-up visit next week.
Compton customers consistently tell us the same thing: they’ve been burned by locksmiths who quoted $35 on the phone and then demanded $300 at the door. That baits-and-switch pattern is real in this trade, and it’s why we structured our entire business against it. The Relay Visibility Guarantee means a live arrival time you can track, before-and-after photos of every job, and a written price before a single tool leaves the bag. This is standard on every job. Not an upgrade.
Lost Key Replacement in Compton
Lost key replacement in Compton is one of the most common jobs we handle, and it’s almost always a same-day fix. The work involves cutting a new key from scratch to match your existing lock cylinder or, if you have no spare to copy, decoding the cylinder and cutting a key to the original factory specifications. For most Compton homes with standard Schlage or Kwikset keyways, this runs $85 to $180 including the service call, with the full price confirmed before we dispatch. If you have a high-security keyway like Medeco or Mul-T-Lock, the key blank itself is more expensive and the job typically lands between $150 and $250 per key.
What makes it fast in Compton is preparation. We carry key blanks for the brands most common in this city’s housing stock, so we’re not running to a supplier after we see your lock.
Key Fob And Smart Lock Backup Keys
If you’ve switched to a smart lock or keypad deadbolt, you still need a physical backup key for power failures and dead batteries. Cutting those backup keys before you lose the original costs $45 to $90 per key, and it’s a 15-minute job when we’re already at your home.
What To Do Before We Arrive
Don’t force the lock. Don’t drill it. A damaged cylinder from a rushed DIY attempt turns a $95 key replacement into a $240 lock replacement. Wait for the tech, and we’ll get it done without turning a simple job into a bigger one.
House Key Locksmith in Compton
A house key locksmith in Compton is who you call when your key snaps in the lock, the cylinder wears out, or you’ve moved into a new place and have no idea who else still holds a copy. The work typically involves extracting broken key fragments, decoding the existing lock, cutting fresh keys, and testing every lock on the property. Standard house key replacement, when we can cut from an existing key, runs $45 to $80 per key. If the key snapped inside the cylinder and we need to remove the lock and decode it, expect $110 to $190 total for a single door.
Moving into a Compton home is the single biggest trigger for this service. The seller’s cousin, the previous tenant, the neighbor who watered the plants, nobody can tell you how many copies of that key are floating around. The fix is simple: Compton Rekey Locks, not a full lock swap. Rekeying a standard cylinder costs $30 to $45 per cylinder, which changes the internal pins so every old key becomes worthless.
Key Extraction Without Destroying The Lock
When a key breaks off in a cylinder, many locksmiths go straight to a drill. On Compton’s older mortise locks, that destroys a rebuildable cylinder and makes Door Lock Repair in Compton far more expensive. We use extraction tools first. Only if the cylinder is genuinely beyond repair do we drill, and we tell you before we do it.
Multiple Doors, One Visit
If you want every exterior door keyed alike so one key opens everything, that’s a rekey job across all cylinders. For a typical Compton home with two to three exterior doors, plan on $75 to $135 total. We’ll get it done in under an hour.
Trusted Brands We Service in Compton
Our trucks carry pin and tumbler kits, deadbolts, and cylinder parts for the hardware Compton actually has, which is not one flavor. We service Schlage and Kwikset daily across the city, along with Yale hardware on many of the original-built homes and Medeco for homeowners who’ve upgraded to high-security cylinders. That means the tech who shows up at your door has the right parts in the van, not a promise to come back in three days. For same-day residential lock work in Compton, we stock a running inventory of common keyways, deadbolt finishes, and mortise lock rebuild kits so the job finishes in one visit.
Common Residential Locksmith Problems We See in Compton Homes
- Mortise locks on pre-1950 bungalows. Compton’s original housing stock, especially between Compton Boulevard and Rosecrans Avenue, was built with mortise locks that modern big-box stores don’t stock parts for. When the thumb latch goes loose or the bolt won’t throw, you need a tech who carries mortise rebuild kits, and that’s exactly what our trucks carry on every Compton run.
- Drilled cylinders from previous locksmiths. Too many Compton homeowners show us locks that were drilled as a “fast fix” for a simple lockout or key extraction. Drilling destroys a rebuildable cylinder and turns a $40 rekey into a $180 lock replacement. We exhaust non-destructive methods first, always.
- Deadbolts installed wrong on door frames. The bolt hole in the frame is often too shallow or misaligned, especially on older Spanish-style homes where the frames have settled over decades. A deadbolt that only throws halfway is not securing your door. We bore the frame to the proper depth and reinforce the strike plate as part of the install.
- Keyed-alike messes across multiple doors. Over the years, people add locks one at a time and end up with four different keys for one house. Rekeying all exterior cylinders to a single key is one of the cheapest security upgrades you can make, and we do it on nearly every house key locksmith visit in Compton.
Pricing for Residential Locksmith in Compton, CA
Here’s the honest breakdown. A standard lock rekey in Compton runs $30 to $45 per cylinder. Deadbolt installation, including the bolt, strike plate, and hardware, runs $120 to $220 depending on the grade and finish. Lost key replacement runs $85 to $180 for standard keys, $150 to $250 for high-security blanks. House key extraction and re-cut runs $110 to $190 per door. Window lock installation runs $35 to $75 per lock. The service call is included in every quote we give you over the phone, and there is no added call-out surcharge when the tech arrives. The price we quote is the price you pay. That’s the whole model. Call (409) 405-4485 for an exact quote, and we’ll give it to you in writing before anyone is dispatched.
We Also Serve Cities Near Compton
If you’re in Gardena, Carson, Lynwood, or Paramount, we handle residential locksmith work there too. The same written price, the same live arrival tracking, and the same background-checked technicians. Call us and we’ll confirm coverage for your street, or explore our Residential Locksmith in Compton page if you’re in the 90220, 90221, or 90222 ZIP codes. Wherever you are in the South Bay corridor, the Relay Visibility Guarantee applies.
Serving Compton, CA - Our Local Coverage Area
We’re based in the Compton 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 Residential Locksmith in Compton
Every Preston tech arrives in a branded vehicle and a Preston uniform with a photo ID badge that includes the technician’s name. Before dispatch, you receive a live tracking link showing the tech’s exact location, and the tech’s name and photo are sent to your phone before they knock. Kevin Yoon built this protocol specifically to eliminate the anonymous locksmith problem that’s common in Compton and across the South Bay. If the person at your door doesn’t match the photo on your phone, don’t open the door. Call (409) 405-4485 and we’ll confirm instantly.
Yes, and we do it regularly. Compton’s pre-1950 bungalows, especially near Rosecrans Avenue and Compton Boulevard, often have original mortise locks that are better quality than modern replacements, but they don’t use standard pin and tumbler cylinders. We carry mortise lock rebuild kits and the specialized tools to rekey them on site. A standard mortise rekey runs $40 to $60 per lock, and we’ll tell you if the lock body itself has enough wear that replacement is the smarter spend.
We run trucks stocked with Schlage, Kwikset, and Yale hardware, plus Medeco and Mul-T-Lock high-security cylinders for homeowners who want upgrade options. The inventory is tuned to Compton’s mix of housing, which is why we carry both modern deadbolt hardware and mortise lock parts that no big-box store in the area keeps on the shelf.
No. If we haven’t dispatched a technician, cancelling costs you nothing. If the tech is already on the road and you cancel before they arrive, you pay nothing either. We only charge once a technician actually begins work at your door. We’d rather earn the next call than nick you on a cancellation fee.
Most house key jobs, whether it’s a lost key replacement, a rekey, or a deadbolt install, take 30 to 60 minutes on site. Mortise lock work on Compton’s older homes takes longer, usually 45 to 90 minutes, because the lock has to be removed, rebuilt, and reinstalled. We’ll give you a time estimate on the phone with your price quote, and the live tracking link shows your exact arrival window before we get there. Call (409) 405-4485 now for a free estimate. A live person answers. The price is in writing before we dispatch. That’s the whole commitment.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Compton since 2008.






