San Dimas, Los Angeles County
Rekey Locks in San Dimas After a Move, Lost Key or Tenant
Short answer: Rekeying beats replacing when your locks work fine and the only problem is who holds keys. It changes the pins, not the hardware, so it's faster and costs less than new locksets. Landlords in San Dimas rely on it between tenants, while renters and owners use it after a breakup, a lost key ring or a move. We check authorization before any lock comes apart.

Somebody else's keys still fit your door until you change that. When you rekey locks after moving into a San Dimas home or apartment, every copy the previous occupants, their relatives, the cleaner and the listing agent passed around turns into scrap brass. Julian's Locksmith brings pins, key blanks and a cutting machine to your driveway, re-pins each cylinder you want covered, and can set the whole house to a single key in the same visit. We check ID and proof that you own or rent the place, quote before any work starts, and try every new key in every door before we pack up. Call (951) 903-3193 and tell us how many exterior doors you have.
Knowing when to rekey locks is half the job. Move in, and you should rekey, because you can't know who still holds a copy of the old key, whether that's a previous owner, a cleaner, a contractor or a neighbor who once fed the cat. Lose a key, and rekeying is cheaper and safer than hoping the missing one never ends up near your address. End a relationship or have a roommate move out, and the same logic applies. Landlords rekey between tenants as routine, because turnover is exactly when copies multiply. Many San Dimas rentals sit in the older tracts and condos around Lone Hill Avenue, while horse properties in the foothills have a wider mix of locks. Keying everything alike, with one key for the front door, back door, garage entry and side gate, is a popular request. If the locks come from different brands, we can swap a cylinder or two to unify them. Rekeying leaves the hardware where it is. We take the cylinders to the van, re-pin them, and have you test each key before we go. For a rental, the owner or manager authorizes the work. For your own home, we check ID and proof of residence.
How this works in San Dimas
Not every reason to rekey locks carries the same urgency, and treating them all alike wastes either money or time. Same-day situations come first: keys stolen along with your ID or registration, a break-in where keys or a garage remote were taken, or a safety concern involving someone who has had a key. In San Dimas, call as soon as you know and we'll find the earliest opening our schedule allows. This-week situations come next: moving into a house or rental, a roommate's final move-out, a tenant turnover between leases, or contractors wrapping up a remodel. These are best booked around a date you already know, so the new keys go into the right hands from the first day. When-convenient situations round out the list: wanting all your doors on one key, cleaning up years of scattered copies, or adding a new deadbolt that should match the rest of the house. Whichever group you fall into, the work itself is the same: re-pinned cylinders, new keys cut on-site, and every lock tested before we leave.
How we can help in San Dimas
- Move-in rekeys for houses and rentals. Before the boxes are unpacked, the door hardware should answer only to your keys. We check your closing documents or lease, inventory the front, back, side and garage entry locks, and rekey each one. Most move-in jobs wrap up in a single visit, with new keys tried on every door before we leave.
- Lost or stolen key rekeys. A lost key with nothing linking it to your address is low risk. A stolen purse holding your driver's license, or a car taken from the driveway with the house key on the ring, is not. In that second case we move the visit up, rekey locks at every door that key opened, and cut replacements.
- Keying every door alike. Keyed-alike setups work best when you decide the plan before we start. Should the detached garage or workshop share the house key, or stay separate? Does the gate padlock need to match? We map it out with you, then pin every chosen cylinder to the same cuts and test each door.
- Estate, vacant and inherited properties. After a parent passes or moves into care, keys to the family home tend to be scattered among relatives, neighbors and service providers. Executors and trustees in San Dimas often rekey locks as a first step, so the house, its contents and the paperwork inside stay controlled until it's sold or occupied.
- Garage entry, gates, padlocks and outbuildings. Certain commercial-grade padlocks take a house-style keyway and can share your key, while most blister-pack padlocks can't be re-pinned and are simply replaced with keyed-alike ones. Gate locks, shed hasps and workshop doors get the same treatment: check the keyway, then rekey or swap the hardware.
What's different about San Dimas
Busy households lose keys constantly: on sports fields, in backpacks, at friends' houses. In family neighborhoods across San Dimas, a keyed-alike rekey simplifies daily life, since everyone carries one key that opens the front door, back door and garage entry. Pair it with a keypad deadbolt on the door the kids use most, and a lost key stops being a reason to rekey every season.
Older homes in San Dimas tend to collect locks one repair at a time: an original brass knob, a deadbolt added decades later, a garage entry lever from whatever was on sale. Before you rekey locks in a house like that, expect a mix of keyways and at least one cylinder too worn to save. We sort the keepers from the replacements so the final ring holds one key instead of four, and we flag any door where the frame needs attention.
Commuters tend to discover lost keys far from home: at a park-and-ride, on a train platform, at the office. If a house key went missing with anything showing your address, rekey locks before you sleep there another night if possible. We start at 6:30 a.m. every day, which helps when a lost key surfaces on an early run along Lone Hill Avenue.
Situations this covers
A landlord with a rental near Lone Hill Avenue gets the keys back from a tenant who moved out on short notice. Nobody can say whether the departing tenant made copies, or whether a former roommate still has one. We'd rekey the front and back deadbolts and the garage-entry knob to a single new key, tag two copies for the owner and cut one for the incoming tenant. By the time the next tenant arrives, the old keys are just scrap metal.
- For example, after a separation, one spouse stays in the house while the other has moved to an apartment in La Verne. Both are still on title, so the spouse who stays brings a temporary court order granting exclusive use of the home. With that paperwork in hand, we rekey the front door, back door and garage entry, then cut two keys.
- For example, a short-term rental host learns that a departing guest carried the lockbox's backup key home by mistake. The keypad deadbolt still works, but its key cylinder now has a stray copy in another state. We rekey the keypad's backup cylinder and the side gate lock to a fresh key, and the host changes the keypad code before the next check-in.
- Say a teenager loses a lanyard at school holding the house key, a car key and a gym tag printed with the family's last name. There's no address on it, but the school sits a few blocks from home. The parents decide not to wait, so we rekey the two doors the kids use plus the side gate, and cut color-coded keys for each family member.
From your call to the finished job
- Tell us why you're rekeying. On the phone we'll ask how many doors take a key, what brand names appear on the lock faces, and whether you still have a working key. With that, we can quote a realistic figure and load the right pins and blanks before we head to San Dimas.
- Confirm who's authorizing the work. Landlords and managers show ownership or a management agreement; tenants show a lease and, where the lease requires it, landlord approval. Executors bring letters testamentary or trust paperwork. If you're unsure what counts, ask when you call and we'll tell you what works.
- Agree on the keying plan. Next we settle the keying: one key for everything, or separate keys for the house and outbuildings. We check each cylinder's keyway first. If one lock won't match the rest, you choose between a second key and replacing that lock before we begin.
- Re-pin each cylinder. If a lock has no working key, we pick or decode it first, then rekey. That takes longer than a standard job and is quoted accordingly. Any cylinder that's cracked, badly worn or seized gets flagged, because rekeying a failing lock only postpones its replacement.
- Test every key in every door. Before we call it done, try the keys yourself. Lock and unlock every door that was rekeyed, including the ones you rarely use. It's far easier to catch a stiff lock while we're still in your driveway than after we've left for a job in Azusa.
- Hand over keys and a key list. For landlords, we label keys by unit and leave a short record of the new keying. For homeowners, we cut copies on the spot so nobody needs a hardware-store run. If you want restricted or do-not-duplicate keys, ask before the visit so we bring the right blanks.
Pricing factors
- How many locks are involved. The biggest driver is cylinder count. A deadbolt and a knob on the front door are two cylinders; add a back door, garage entry and side gate and you're at five or more. We quote the whole list together and tell you the total before any work starts.
- Whether you have a working key. A working key lets us remove and re-pin a cylinder quickly. With no key at all, we pick or decode the lock first, which adds labor, and a few locks have to be drilled or taken apart from the inside. Tell us on the phone if keys are missing.
- Timing and travel. A planned rekey fits wherever the schedule has room. An urgent one, after stolen keys or a safety concern, gets moved up when we can manage it, which can affect cost. Hours run every day, 6:30 a.m. to 11:30 p.m.
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 San Dimas.
What not to do
- Rekeying a lock that should be replaced. A loose, sagging or sticky deadbolt that's been rekeyed is still a weak deadbolt. If the bolt won't fully throw or the cylinder spins in the door, fix or replace it first, then key the new hardware to match.
- Waiting until something happens. People put off a rekey because nothing seems wrong, then come home to a door left unlocked or items moved around. The value of a rekey is that it removes an unknown before it becomes a problem, not afterward.
- Cutting a pile of copies right after the rekey. Each extra key you make and hand out recreates the problem you just paid to solve. Start small, track every copy you issue, and add more only when someone genuinely needs one.
Practical tips before you call
- Renters should read the lease before calling. Many leases require written landlord permission for lock changes and a copy of the new key for the landlord. Ask by email, keep the reply, and let us coordinate the extra key so your rekey never turns into a lease dispute.
- Rekey the day your situation changes. The best moment is the day you get possession, the day a roommate's last box leaves, or the day you realize keys are gone. Every day in between is another day an unknown copy still opens your door.
- After any rekey tied to lost or stolen keys, clear your garage opener's remote memory. On most LiftMaster and Chamberlain openers, holding the learn button on the motor unit until its light goes out erases every paired remote and keypad. Then re-pair the remotes you still have.
- Retire the old hiding spots. The fake rock, the magnetic box under the meter, the lockbox an agent left on the hose bib: previous owners, tenants and their friends may know all of them. After the rekey, keep the new spare with a trusted person instead of a spot someone else already knows.
Getting to San Dimas
San Dimas is about 34 miles from our San Bernardino base, roughly 37 minutes in light traffic via University Parkway to I-215 South. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Commercial jobs on busy stretches like Arrow Highway sometimes need a parking plan, especially for storefront doors or roll-up gates. Let us know about loading zones, red curbs or parking structures before we arrive.
About San Dimas: The Metro A Line's San Dimas station opened on September 19, 2025, on San Dimas Avenue near Bonita Avenue, with a 280-space parking lot.
| Neighborhoods | San Dimas Canyon, Gladstone Street and Cataract Avenue area, Sycamore Canyon, Northern Foothills, Puddingstone Drive area, West San Dimas |
|---|---|
| ZIP codes | 91773 |
| Main routes | I-210, SR-210, SR-57, Foothill Boulevard |
| From our San Bernardino base | about 34 miles via University Parkway to I-215 South, then SR-210 West (Foothill Freeway) through Rialto, Fontana, Rancho Cucamonga, Upland, Claremont and La Verne to the San Dimas Avenue exit for downtown; Lone Hill Avenue exit for the west side and Arrow Highway, or SR-57 South to the Via Verde exit for Via Verde, Bonelli Park and Raging Waters |
Planning a rekey in San Dimas?
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
Does rekeying change my smart lock or keypad?
Only the key cylinder. Most smart deadbolts with a keyway, such as Schlage Encode, Kwikset Halo and Yale Assure models, have a backup cylinder that can be rekeyed with the rest of the house. Codes, fingerprints and app access are separate; delete old ones yourself or let us walk you through the reset while we're there in San Dimas.
Should I rekey after a break-in?
Yes, if keys, a garage remote or anything with your address was taken, or if you simply can't be sure. If the door was forced, the lock or frame may be damaged and need repair or replacement rather than a rekey. We assess each door, fix what's broken, and make sure every exterior lock runs on a key the intruder never had.
Can you rekey my locks today?
Often, depending on the schedule and your distance from our San Bernardino base. Urgent rekeys after stolen keys or safety concerns get priority when we can manage it. We work every day, 6:30 a.m. to 11:30 p.m. Call (951) 903-3193 for an honest ETA to San Dimas.
How soon after moving in should I rekey?
As close to possession day as you can arrange, ideally before valuables come through the door. Sellers, agents, previous tenants, cleaners and contractors may all have had copies. We can schedule the rekey for the day you get keys, and we'll need to see closing documents or a lease along with ID. Most single-family homes are handled in one visit.
Will a rekey affect my garage door opener?
No. The opener and its remotes run on radio codes, not keys. If you're rekeying because keys or a remote went missing, clear the opener's memory and re-pair the remotes you still have; on most openers that's done with the learn button on the motor unit. We rekey the keyed doors, including the garage entry and service door.
Can you make all my house locks work with one key?
In most homes, yes. Locks that share a keyway, such as several Kwikset or several Schlage pieces, can be rekeyed to the same new key in one visit. If one lock is a different brand, we either replace that lock or its cylinder, or leave it on a separate key. We'll show you which doors match before quoting anything.
How far is San Dimas from your base?
San Dimas is about 34 miles from our San Bernardino base, roughly 37 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.
Related services in San Dimas
- Lock Rekeying in San Dimas
- Lock Rekey in San Dimas
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