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 Monrovia
Rekeying locks in Monrovia means changing the internal pins in your existing lock cylinders so old keys stop working, without replacing the hardware itself. For a standard Monrovia bungalow or foothills tract home, a full house rekey typically runs $95 to $210 depending on how many cylinders are involved, and the job usually wraps in under an hour. Kevin Yoon has led our Monrovia crews since Preston Locksmith & Security was founded in 2008, and every job starts with a written price before we dispatch. Call (409) 405-4485 and you’ll talk to a live person, not a voicemail tree.
Why Preston Locksmith & Security Is Monrovia’s Preferred Rekey Locks Company
We’ve worked on enough Monrovia doors to know the difference between a crate-style mortise lock on a 1922 bungalow off Colorado Boulevard and a builder-grade Kwikset deadbolt on a 1987 home near Cloverleaf Canyon. That matters when you’re rekeying, because the cylinder has to seat correctly in whatever door prep exists. Our Rekey Locks team stocks pin kits for Schlage, Kwikset, Medeco, and Abloy hardware right in the van, so we aren’t driving back to a supply house mid-job.
The Relay Visibility Guarantee is how we run every call in Monrovia and nearby areas. You get a live trackable arrival time before the tech rolls, before-and-after photos of the work, and a written guarantee stamped on every repair. If something isn’t done right, our 365-Day Done Right Promise covers a free second visit. No argument, no runaround.
Kevin Yoon’s crews are background-checked and arrive in uniform. You’ll know who’s coming, what they look like, and exactly when they’ll knock. Dispatch for Rekey Locks in Monrovia is coordinated from our Los Angeles office, but the techs serving your address live and work in the San Gabriel Valley corridor every day.
Rekey Deadbolt in Monrovia
Rekey Deadbolt work in Monrovia means pulling the cylinder from your existing deadbolt, replacing the spring-loaded pins inside with a new pin and tumbler set, and cutting you fresh keys. A single deadbolt rekey in Monrovia runs $25 to $40 per cylinder, and a Schlage or Kwikset deadbolt usually takes under 15 minutes once the tech is at the door. Homeowners call for this most often after a roommate moves out, a contractor finishes a remodel, or a spare key goes missing from the hook by the back door.
Deadbolt Rekey After a Property Transfer
Monrovia sees a steady clip of home sales, especially around Mayflower Village and the streets north of Foothill Boulevard. Closing escrow means the previous owner, their agent, their contractor, and who knows who else all possessed copies of your front-door key. Rekeying every deadbolt and knob on day one is the only way to actually sever that chain of access. Swapping hardware is not the same thing: a new deadbolt still has the same internal cylinder unless it’s independently rekeyed or keyed by the factory.
Matching Deadbolts and Knobs to One Key
Most Monrovia homes were built with two brands of hardware on the same door, often a Schlage deadbolt above a Kwikset knob. They use different keyways, so one key can’t run both until the cylinders are re-pinned. Our techs carry Schlage and Kwikset pin kits and can key most brands alike on site, so your front door, back door, and garage entry all work off a single key.
Rekey House in Monrovia
Rekey House service in Monrovia covers every entry lock on the home: front door, back door, side garage door, and any interior locking doors you want included. A full house rekey typically runs $95 to $210 in Monrovia’s market, with the exact figure written before anyone is dispatched. If you’re in a 1920s bungalow near Old Town with original mortise locks, the angle changes: each mortise cylinder gets re-pinned in place, tested for a clean throw, and lubed with a dry graphite from our kit.
When a House Rekey Becomes a Hardware Repair
Older Monrovia homes, particularly the pre-war stock west of Myrtle Avenue, often have mortise lock bodies with worn internal chambers. A straight cylinder rekey can leave the key sticking or the deadbolt not fully throwing. Kevin Yoon’s policy is to inspect the cylinder before re-pinning and flag it on the written estimate if the body itself is worn. You know before we touch a single tool.
Rekey vs. Full Lock Replacement
A rekey is almost always cheaper than buying new locks in Monrovia, and it doesn’t change the look of your door’s original hardware. Replacement makes sense when the lock’s finish is failing, the bolt is chipped, or you want to move to a high-security keyway like Medeco or Abloy. When we arrive, we quote both paths if the existing hardware is marginal, and you pick before any work starts.
Trusted Brands We Service in Monrovia
Our Monrovia vans carry pin kits, cylinders, and blanks for Schlage, Kwikset, Medeco, and Abloy, which covers nearly everything we see from the craftsman bungalows near Old Town Monrovia to the 1980s tract homes up in the foothills. If your hardware is Baldwin or Yale, we can source it same day through our San Gabriel Valley supply network. That keeps a rekey from turning into a multi-day project when the only issue is a pin kit that wasn’t in the van.
Common Rekey Locks Problems We See in Monrovia Homes
- Old keys outliving old occupants. After a sale or a tenant change in a duplex off Duarte Road, the prior holder still has a working key until the cylinder is re-pinned. Lock swapping feels like a fix but leaves the same vulnerability if the new cylinder isn’t independently rekeyed.
- Worn mortise cylinders in Old Town bungalows. The internal pin chambers in original mortise locks have decades of brass-on-brass wear, and a fresh rekey can bind if the cylinder isn’t inspected and lightly honed first. We check before we pin.
- Mixed hardware on one door. A Schlage deadbolt over a Kwikset knob is common in Monrovia’s 1970s and 1980s builds, and the two keyways won’t share a key until the cylinders are re-pinned together.
- Padded dispatch quotes. A phone quote for a “house rekey” that turns into a full hardware replacement bill once the tech arrives is a known problem in this trade. Our written estimate matches the invoice, and any add-on gets your signature first.
Pricing for Rekey Locks in Monrovia, CA
Rekeying a single deadbolt in Monrovia runs $25 to $40 per cylinder. Rekeying every entry on a typical three-bedroom Monrovia house is $95 to $210, and we can key all cylinders alike so one key runs the place. What changes the total: cylinder count, whether any mortise lock needs an insert or honing, and whether you want high-security keyways like Medeco or Abloy instead of standard Schlage or Kwikset pins. Every price is written before the tech leaves the shop, and the figure on your invoice is the figure on the written estimate. No call-out fee gets added on arrival. Call (409) 405-4485 for a free estimate, and we’ll scope the job on the phone.
We Also Serve Cities Near Monrovia
Our crews work the same San Gabriel Valley corridor every day, so a Monrovia call often means we can be in Arcadia, Duarte, Sierra Madre, or Baldwin Park within the hour. If you’re just across the city line and checking a rekey price, the cost won’t change from what you see on this page.
Serving Monrovia, CA - Our Local Coverage Area
We’re based in the Monrovia 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 Monrovia
A full house rekey in Monrovia usually takes 40 to 70 minutes once the tech is at the door. Older mortise locks on Old Town bungalows can add ten to fifteen minutes per lock if the cylinder needs cleaning or honing. Call (409) 405-4485 and we can give you a realistic window for your square footage and lock count.
Yes, and that’s a big part of what we do in Monrovia’s pre-war housing stock. The mortise cylinder gets re-pinned in place, and we test the bolt throw before we hand you the key. If the lock body itself is worn, you’ll know from the written estimate before any work begins.
A rekey is materially cheaper: $25 to $40 per cylinder versus $40 to $150 or more for new hardware that then still has to be installed. Rekeying also preserves the original hardware match, like a full mortise lock set with antique brass trim on a century home. If the hardware is genuinely failing, we’ll give you both numbers and you decide.
Yes. Rekeying replaces the internal pin and tumbler stack inside the cylinder, so every key cut before the rekey becomes dead metal. One house rekey after a remodel on a Monrovia hillside home can wipe out every key the GC, the painter, and the tile crew ever handled.
When you book with Preston Locksmith & Security, you get a live trackable arrival link that shows the tech’s name and photo before they arrive. They wear a uniform with the Preston logo, they arrive in a marked vehicle, and the written price you approved on the phone matches the job sheet they hand you on the driveway. If any of that doesn’t line up, tell them to wait and call Kevin’s office directly.
For a free, written estimate on a rekey in Monrovia, call (409) 405-4485 right now. A live person picks up, and we’ll give you the exact price before anyone is dispatched.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Monrovia since 2008.