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 Byron
Rekeying a lock in Byron typically costs $25 – $35 per cylinder for the labor, plus a trip fee that we quote in writing before anyone heads your way. Most homes take under an hour, start to finish. We serve every corner of Byron, from Camino Diablo out toward the Byron Hot Springs area, and our dispatch team answers the phone live at (409) 405-4485 when you call.
Byron’s housing mix is unusual. You’ll find 1970s ranch homes with original builder-grade locks on one street and 2010s tract builds with smart deadbolts on the next. That means the right approach to rekeying here isn’t one-size-fits-all, and we plan for it before we arrive.
Why Preston Locksmith & Security Is Byron’s Preferred Rekey Locks Company
Kevin Yoon founded Preston Locksmith & Security in 2008, and the company has been part of the Relay Home Co. family since, with each location independently owned and operated. What Byron homeowners tell us they value most is the written price before work starts. Not an estimate range that might shift. A specific dollar figure, in writing, before a tool leaves the bag.
Every rekey job in Byron is covered by the Relay Visibility Guarantee. You get a live arrival time you can track from your phone, before-and-after photos of each lock we touch, and a written guarantee stamped on the invoice. If the repair fails within 365 days, we come back and make it right at no charge. That’s the 365-Day Done Right Promise, and it applies to every job, no exceptions.
Our technicians are background-checked and arrive in uniform. You’ll know who’s coming, what they look like, and exactly when they’ll pull up. No anonymous subcontractor in an unmarked van. No “we’re in the area” surprises at 9 p.m.
Lock Rekey in Byron
Lock rekey in Byron means swapping the internal pins inside your existing lock cylinder so the old keys stop working and a new key operates the deadbolt or knob. No new hardware to buy. No door prep. We disassemble the cylinder, replace the pins to match a new key code, and reassemble the lock. When it’s done, every old key becomes useless.
Most Byron homeowners call us for a rekey in one of three situations: they’ve just closed escrow, a roommate or tenant moved out, or a key went missing somewhere between the mailbox and the Byron Airport. In each case, the priority is speed and certainty. We typically handle a full exterior rekey, which means three to five cylinders, in 45 to 75 minutes on a standard Byron ranch or tract home.
New Homeowner Rekeys
Closing on a house in Byron means the previous owners, their relatives, their contractor, and whoever else had a key still potentially have access. We rekey every exterior cylinder to a single new key code. If you want, we’ll also key all your locks alike so one key works the front door, laundry room, and side gate.
Post-Tenant and Lost Key Rekeys
If a tenant moved out of a rental property off Byron Highway or a key went missing, don’t wait. A rekey costs far less than replacing hardware, and we can usually schedule it same-day. The written price covers the labor and pin kit per cylinder, nothing else gets added at the door.
Locksmith Rekey in Byron
A locksmith rekey in Byron is the same physical job as a lock rekey, but with a licensed professional doing the work instead of a handyman with a screwdriver. The difference matters here because Byron’s older cylinders are often worn. A 1979 Schlage deadbolt with 45 years of use has pin chambers that are looser than a new lock. Pull the wrong pin spring and you’ve got a lock that works for a week, then jams.
We carry both standard and small-diameter pin kits on every truck because Byron’s split housing stock demands it. A Kwikset keyway from a 1980s ranch home near the Discovery Bay border uses different pins than a Medeco high-security cylinder on a newer build near Camino Diablo. One trip, two different pin sets, no second visit to “grab the right parts.”
Mortise and Older Cylinder Work
Some Byron ranch homes still have original mortise lock bodies on the back door or garage entry. These aren’t always straightforward to rekey, but we service them regularly. We’ll tell you before we start whether the cylinder is rebuildable or whether replacement is the smarter long-term call.
Smart Lock and Keypad Resets
Many newer Byron homes have Kwikset SmartKey deadbolts or keypad entries. These can often be rekeyed without replacing the hardware. For keypad units, we’ll also clear old access codes so a previous owner or tenant can’t punch in a code and walk through the slider.
Trusted Brands We Service in Byron
We’re trained and equipped to service Kwikset, Schlage, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware. For Byron homes specifically, we keep a healthy stock of Kwikset and Schlage pin kits on the truck, since those two brands cover the majority of residential locks in this area. If you have a Baldwin mortise lock or a Yale keypad entry, we can service those too, usually same day. Our Rekey Locks team handles everything from a single deadbolt to a full property rekey.
Common Rekey Locks Problems We See in Byron Homes
- Worn builder-grade cylinders stripping during a rekey. Byron’s 1970s and 80s ranch homes often still have their original Kwikset or Schlage cylinders. The pin chambers are loose, and an inexperienced tech can strip them during the job, leaving the lock working for a few days before it fails entirely. We test every cylinder with the new key multiple times before we leave.
- Mixed hardware on the same property. A front door with a modern Schlage deadbolt, a back door with an old mortise lock, and a slider with a Kwikset keypad. That’s a typical Byron setup. Rekeying all three consistently requires carrying multiple pin kits and knowing when a cylinder is too worn to reuse.
- Previous owners’ access codes still active on smart locks. We see this often in Byron’s newer tract developments. The seller hands over the physical keys but forgets to clear the keypad codes. We reset factory codes and program fresh ones as part of the rekey.
- Teaser pricing then an “upcharge” at the door. Byron’s mix of older mortise locks and newer deadbolts makes it easy for a dishonest locksmith to quote a low price, arrive, and then claim your specific lock needs a special-order pin kit. Our price is written before dispatch, and it’s the price on the invoice. No “high-security” surprise.
Pricing for Rekey Locks in Byron, CA
A standard single-cylinder rekey in Byron runs $25 – $35 per cylinder. A deadbolt counts the same as a knob or lever cylinder. Most full-home rekeys involve three to five cylinders, putting the typical total between $120 and $220, including the trip fee depending on your exact location in Byron. Mortise cylinders and some high-security locks like Medeco run higher because the parts and labor are more involved. We quote the full price on the phone before anyone is dispatched to your home. That price is the price on the invoice. If your specific lock needs something outside the standard scope, we’ll tell you before we start, and the quote gets updated in writing while you’re standing there, not after the work is done. Call (409) 405-4485 for an exact quote on your Byron property. Estimates are free.
We Also Serve Cities Near Byron
Our Rekey Locks in Byron crew regularly handles jobs in Discovery Bay, Brentwood, Oakley, and Livermore as well. If you’re just outside Byron proper, count on the same written pricing and live arrival tracking. Call us and we’ll route the nearest available tech to your location.
Serving Byron, CA - Our Local Coverage Area
We’re based in the Byron 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 Byron
A full exterior rekey on a typical Byron home takes 45 to 75 minutes, assuming three to five cylinders. If you have a mortise lock or a smart lock that needs a code reset, add 15 to 20 minutes. Call (409) 405-4485 and we’ll give you a realistic time estimate for your specific property.
No. Rekeying does not require drilling when you have a working key. We disassemble the cylinder, swap the pins, and reassemble. Drilling only becomes necessary on a lockout call when no key is available. If your lock is still functional, the rekey is non-destructive.
Yes. We rekey Kwikset SmartKey deadbolts and reset keypad entry codes on Byron homes regularly. For keypad units, we clear old codes and program fresh ones so only you and the people you choose have access. The process is usually faster than a traditional pin and tumbler rekey.
Your technician will arrive in uniform, and you’ll have their name and photo before they arrive. The Relay Visibility Guarantee gives you a live trackable arrival time, so you watch them approach on your phone in real time. They’ll also have your written quote, matching the price you received on the phone, before any work starts. No mismatch, no ambiguity.
In most cases, yes. Many Byron ranch homes have mortise lock bodies on secondary doors, and we rekey those cylinders regularly. Some very old or badly worn mortise cylinders can’t be reliably rekeyed, and in those cases we’ll show you the problem and give you an honest recommendation, often a new cylinder that fits the existing mortise body. You’ll know before any work is done.
Call (409) 405-4485 for a free, written estimate on rekeying any lock in Byron. We answer live, 24/7. The price we quote on the phone is the price you’ll pay, guaranteed.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Byron and nearby Contra Costa County communities since 2008.






