La Puente, Los Angeles County
Rekey Locks after Buying a House in La Puente
Short answer: Yes, you should rekey locks after buying a house, ideally on the day you take possession. Sellers, their relatives, agents, cleaners and contractors may all hold copies, and none of them have to give those back. Rekeying swaps the pins inside your existing cylinders so every old key stops working. Julian's Locksmith does it on site in La Puente; call (951) 903-3193.

Rekeying sounds technical, but the idea is simple. Inside each cylinder sits a row of small brass pins cut to match the old key. We remove the cylinder, swap those pins for a new combination, and cut you fresh keys, so the lock looks and works the same but no previous key can turn it. For most residential brands, including Kwikset, Schlage and Yale, that's a short job per lock and costs far less than buying new hardware. If you've just bought a home in La Puente, it's one of the smartest small investments you'll make in your first week there.
How this works in La Puente
A thorough rekey after a home purchase starts with a walk-through. We count every keyed cylinder: front deadbolt and knob or handleset, garage entry door, back and side doors, keyed patio handles, gates, sheds and the mailbox. Then we look at brands and keyways. Many resale homes in La Puente have a mix, say Kwikset on the front and Schlage on the garage door, and those two use different keyways (KW1 and SC1), so they can't share one key as they stand. We can swap the odd cylinder or replace that lock so one key runs the whole house. Kwikset SmartKey locks are rekeyable too; we set them to your new key so the old one no longer turns them. High-security cylinders such as Medeco or Mul-T-Lock may need restricted blanks or authorized service, and we'll tell you if yours fall into that group. Last, we flag hardware that isn't worth rekeying: worn latches, wobbly deadbolts, a bargain lock on the door from the garage. You decide what gets rekeyed and what gets replaced.
Work included on a typical visit
- Keypad and smart lock resets. Retrofit smart locks catch a lot of buyers off guard. An August-style unit clamps over the inside thumbturn and a Level Bolt-style unit replaces only the bolt, so the original exterior cylinder stays and still takes the seller's key. Older keypad deadbolts may also need a programming code printed on a label inside the housing. We handle both before leaving.
- Mailbox lock change. Mail theft is common enough that the mailbox deserves the same attention as your front door. Who changes a cluster box lock depends on who owns the unit: the HOA or developer, or the postal service. We'll help you sort out which applies, then change your compartment lock and cut new keys where it's ours to do.
- Lock condition check and upgrades. A rekey visit is a natural time to evaluate the hardware itself. We check backset, bolt throw, strike plate screws and how the door sits in the frame. Some buyers stop at rekeying; others add a higher-security deadbolt on the front door or a sturdier lock on the garage entry. Your call entirely.
- Security screen doors and iron gates. Wrought-iron courtyard and side gates take a beating from sun, sprinklers and slamming. Their locks are often rim or mortise gate locks, or keyed levers mounted in a weld-on box. We service, rekey or swap those cylinders to match the house, and replace gate hardware that has rusted past the point of latching reliably.
- When the seller's keys don't fit. Damaged and high-security cylinders are the exception. A lock that was drilled, jammed or fitted with a patented keyway may not open cleanly, and occasionally drilling is the honest answer. We'll tell you before doing it, explain the replacement, and still leave every door on your new key before we pack up.
What's different about La Puente
Inland heat bakes exterior locks. Lubricant dries, pins gum up, and keypads on sun-facing doors wear out faster. When we rekey after a purchase in La Puente, we clean and lubricate each cylinder with a dry graphite or PTFE product rather than oil that attracts dust, replace tired springs, and check keypad batteries, which hot weather drains faster than many owners expect.
Older homes in La Puente often carry decades of key history: original knob locks, deadbolts added by a later owner, maybe a rim lock on a back door. Vintage cylinders can be stiff or corroded, and some original hardware isn't worth re-pinning. During a post-purchase rekey, we'll tell you which locks deserve new pins, which deserve retirement, and whether those older doors and frames will hold a modern deadbolt properly.
Family neighborhoods mean school schedules, carpools and a lot of people who may have held the previous owner's keys: babysitters, grandparents, coaches dropping kids off. After you buy in La Puente, rekeying gives you a clean slate before your own kids start getting keys. Many families pair it with a keypad deadbolt so children never carry a key that can be lost at school.
Common situations
- Suppose you buy a townhome in an HOA community. Your unit's front door and patio gate are yours to rekey, but the pool gate, mailbox units and common doors usually belong to the association. We'd rekey your unit, change your mailbox compartment lock if the HOA allows it, and point you to the management office for pool and gate fobs.
- Picture a buyer relocating for a job who closes remotely, flies in Thursday night and has movers booked for Friday morning. The sensible move is the first slot of the day: we can start at 6:30 a.m. on a Friday, rekey the exterior doors, reset the keypad and hand over keys before the truck pulls up. Friday service runs until 11:30 p.m., but morning is still the right call here.
- For example, a couple closes on a 1960s single-story home in Downtown Business District, and the seller's agent hands over three different keys plus a garage remote. During the walk-through we'd find a Kwikset front deadbolt, a Schlage knob on the garage entry door and a padlock on the side gate. A typical plan: re-pin what matches, swap the odd cylinder, and leave them with one key for every door.
- Imagine buying a home whose sellers had a Kwikset keypad deadbolt on the front and a Wi-Fi smart lock on the back door. The keypad still opens with their code, and the smart lock still shows up in their app. We'd clear every stored code, factory-reset the smart lock, pair it to your phone, and rekey both backup cylinders to your new key.
How the visit works
- Book around your possession date. When you call, have the property address, your possession date and a rough count of exterior doors ready. Photos of each lock face, including the brand stamped on the deadbolt, let us stock the van with the right pins and cylinders. We work every day, 6:30 a.m. to 11:30 p.m.
- Bring proof of ownership. We verify every buyer before rekeying. A driver's license with your name, matched to the final settlement statement or recorded deed, is ideal. Buying through a trust or LLC? Bring documents showing you're authorized for that entity. It takes a couple of minutes and keeps us from rekeying for the wrong person.
- Walk the property and count cylinders. We also try every key the sellers left in every lock. That quick test shows which locks the old ring actually operates, turns up doors nobody had a key for, and flags cylinders that were swapped years ago. While walking the perimeter, we keep an eye out for leftover lockboxes and hidden spares so you can remove them.
- Re-pin each cylinder. Your new combination comes from a fresh code, not a variation on the seller's key. We cut keys on a code machine to the manufacturer's depth and spacing specifications, keeping neighboring cuts within the allowed limits so the key turns smoothly and doesn't wear early. Kwikset SmartKey cylinders are reset with their own tool instead of loose pins.
- Reset codes and test every key. With the pins done, we clear keypad codes, factory-reset smart locks and pair them to your phone. Then we test every new key in every lock, from inside and outside, with the door open and closed. A key that turns stiffly gets corrected now, not discovered when you're standing on the porch with groceries.
- Hand over the keys and the record. Before we leave, we count the keys out with you and decide where each one goes. A spare belongs with a person you trust or in a lockable spot indoors, not under a mat or inside a fake rock. If you'll add locks later, hold on to the key code record so new hardware can match from day one.
Pricing factors
- Number of cylinders. Every keyed cylinder is a separate rekey, so a house with matching deadbolts and knobs on three doors means six cylinders before gates or the mailbox. Adding outbuildings adds cylinders. We price per cylinder plus the visit, which makes it easy to see the effect of including or skipping any lock.
- High-security and smart locks. Standard residential cylinders are the quickest. Restricted high-security systems such as Medeco or Mul-T-Lock may need key blanks from an authorized source, or factory service, and can take longer to arrange. Smart lock resets and app pairings add some time per lock. We identify these before quoting so there are no surprises.
- Scheduling and location. Planned rekeys are easier to schedule and price than emergencies. If you call a few days before closing, we can line up a visit that fits your moving plans and route it efficiently. A same-day request is often possible too, but evening slots before our 11:30 p.m. close fill quickly.
Every job gets a clear quote before any work starts. Call (951) 903-3193 with the details and we'll tell you what to expect for your situation in La Puente.
Mistakes to avoid
- Replacing perfectly good locks when rekeying would do. If the hardware works smoothly and you like how it looks, new pins and keys solve the access problem for much less. Replacement makes sense for worn, damaged, low-grade or mismatched locks, or when you want a smart lock upgrade.
- Waiting until after moving in. Once your belongings are inside and life gets busy, rekeying slides down the list for weeks or months. Meanwhile, every old key still works. Book it for possession day; it's a short visit compared with everything else you're juggling that week.
- Rekeying only the front door. The garage entry door, side door and back door are just as likely to be used by someone with an old key, and they're often easier to approach unseen. If you're paying for a visit, cover every exterior cylinder, plus gates and the mailbox if they're keyed.
What to do before we arrive
- Schedule the rekey before movers arrive. Once boxes and furniture are inside, you're protecting more behind locks whose key history is unknown, and moving day itself brings helpers through every door. Even a morning appointment on possession day, before the truck shows up, closes that gap.
- Call the alarm company to change the master and user codes, and ask them to remove the previous owner's contact list. In HOA communities in La Puente, contact management to deactivate the seller's gate remotes or pool fobs and issue yours. These sit outside a locksmith's work but belong on the same checklist.
- If you plan a remodel, give contractors a temporary key and plan to rekey once they're finished, or install a keypad lock whose code you can delete. Rekeying twice costs less than wondering how many copies a crew made, and good contractors won't be offended by it.
- Erase the garage door opener's memory using the learn button on the motor unit, then reprogram only your own remotes and car buttons. Change the exterior keypad code too. A seller's old remote clipped to a visor, or a code shared with a landscaper, can open the big door long after the locks are rekeyed.
Reaching La Puente
La Puente is about 47 miles from our San Bernardino base, roughly 52 minutes in light traffic via Palm Avenue to I-215 South, SR-210 West to SR-57 South in San Dimas. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
If you're close to Francisquito Avenue, tell us which exit or cross street you're nearest. It trims the last mile and keeps the van from circling a block that looks right on the map but isn't.
About La Puente: The La Puente Valley Woman's Club, a wooden Craftsman clubhouse completed in 1923 in the downtown business district, was added to the National Register of Historic Places in 1999.
| Neighborhoods | Amar Road corridor, La Puente Park area off North Glendora Avenue, Del Valle Avenue and Willow Avenue blocks, Southeast streets bordering the Industry Hills, Valley Boulevard and Old Valley Boulevard edge along the railroad, Nelson Avenue corridor near La Puente High School |
|---|---|
| ZIP codes | 91744, 91746 |
| Main routes | I-10, SR-60, I-605, Hacienda Boulevard |
| From our San Bernardino base | about 47 miles via Palm Avenue to I-215 South, SR-210 West to SR-57 South in San Dimas, then I-10 West to the Azusa Avenue or Puente Avenue exits and south into town; for the Valley Boulevard and lower Hacienda Boulevard side, SR-57 South to SR-60 West and north on Hacienda Boulevard or Azusa Avenue |
Planning a rekey in La Puente?
Call (951) 903-3193 and tell us how many doors you want on the new key and the brand of the locks if you know it. We'll quote the rekey before any work starts.
Frequently asked questions
How much does it cost to rekey locks after buying a house?
It depends on how many cylinders you have, whether they share a brand and keyway, their condition, any high-security or smart locks, and how many keys you need. Rekeying is generally far less expensive than replacing every lock. We walk the property, count the locks and give you a quote before starting work. Call (951) 903-3193 to set it up.
Can I rekey the locks myself?
With the right brand-specific kit and patience, some homeowners do. Kwikset SmartKey locks can be rekeyed with their tool if you have a working key. Traditional pin tumbler locks need the right pins, a plug follower and a steady hand; dropped springs end a lot of DIY attempts. A locksmith handles mixed brands, keyed-alike sets and worn parts in one visit.
The house is brand new. Do I still need to rekey?
It's less urgent but still worth checking. Builders often use construction keying so the trades' key stops working after the homeowner key is used, yet that only works if every cylinder was actually switched over. Model homes and spec homes also see plenty of visitors. A quick test or a full rekey removes the uncertainty for a modest cost.
Can I have the locks rekeyed before escrow closes?
Usually not. Until escrow closes and the deed records, the seller still owns the house, and we verify ownership before working on any lock. If your contract gives you early possession, bring that agreement plus the seller's written authorization and we can talk it through. Most buyers simply book the rekey for the day possession transfers, which avoids the question entirely.
What do I need to show the locksmith to prove I own the house?
Photo ID plus a document tying you to the property: your final closing or settlement statement, the recorded grant deed, or escrow documents. Your license won't show the new address yet, which is normal. If the house is held in a trust or LLC, bring something showing you're authorized to act for it. We check this before working on any lock.
Does rekeying make my locks harder to pick or bump?
Not by itself. A rekey changes which key works, not how resistant the cylinder is. If picking or bumping worries you, ask for security pins, such as spool or serrated pins, in cylinders that accept them, or consider higher-security cylinders with restricted keyways. Those upgrades can be done during the same visit, and we'll quote them separately from the basic rekey.
How far is La Puente from your base?
La Puente is about 47 miles from our San Bernardino base, roughly 52 minutes in light traffic. Arrival time depends on traffic and on the job the technician is finishing, so we give you an estimate on the phone before you commit.
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