Monrovia, Los Angeles County
Rekey All House Locks in Monrovia: Doors, Gates and Codes
Short answer: A whole-house rekey only works if every cylinder gets caught. The ones people miss most are the knob under the front deadbolt, the garage-to-house door, the garage side door, the security screen, side gates and the slider. Leave one lock on the old key and that key still opens your home. In Monrovia, we count every keyhole with you before quoting.

Rekeying the entire house is also the best chance you'll get to decide how your keys should work. Most people want the front, back and garage entry on one key. Fewer realize they can put a home office, a storage room or an ADU on a different key at the same time, or let one key open everything while a helper's key opens only the side gate. When we rekey all house locks in Monrovia, we settle that structure first, so every cylinder is re-pinned only once. It also keeps the quote honest, because you approve a plan, not a guess.
How this works in Monrovia
Before the first pin comes out, decide how the finished house should be keyed. The simplest plan puts every exterior lock on one key, which is what most families want. But a whole-house rekey is also the cheapest moment to build in exceptions. You might keep a detached office or storage room on its own key, give a gardener a key that opens only the side gate, or set up a small master arrangement where your key opens everything and an ADU occupant's key opens only their door. Each separate key adds a little cost and something to keep track of, so the goal is the fewest keys that still match how your household actually uses the property. Making those choices first matters because changing the plan later means pulling and re-pinning cylinders a second time. We sketch the plan with you on paper, door by door, before quoting, so the price you approve reflects the keys you'll really carry.
What we can do on-site
- Whole-property lock inventory. We check places people forget: the knob under each deadbolt, the door from the garage into the house, a keyed screen door, side and RV gates, a casita, a home office with a keyed lever. If a lock takes a key, it goes on the list, even if you've never used it, because someone else might have that key.
- Gates, fences and pool enclosures. Side gates, RV gates and pool gates are easy to overlook because they're outside the house. Many carry keyed deadbolts, rim locks or keyed latches that a former owner or service worker may still hold a key to. We bring those that take a standard cylinder onto your new key, or onto a separate yard key if you prefer.
- Outbuildings, casitas and padlocks. A detached casita or guest house with its own entry often needs a different key from the main house, especially if someone lives in it. We can key it separately or set up a small master arrangement, so your key opens it but the occupant's key doesn't open your house. That plan comes before any re-pinning.
- Smart locks, keypads and lockboxes. Retrofit smart locks such as August or Level sit on your existing deadbolt and keep its original cylinder. We remove the smart unit, re-pin the cylinder to the new house key, reinstall the unit and check that it still locks and unlocks on command. The new physical key and the app then match the rest of the house.
- Key cutting, key count and a key record. New keys are cut in the van from the same code used to pin the cylinders, then tried in every lock they're meant to open. We cut the number you agreed to and suggest you count them before we leave. Fewer copies in circulation is half the value of rekeying the entire house.
What's different about Monrovia
Family homes in Monrovia tend to accumulate keys: the babysitter, the grandparents, a neighbor who waters plants and a teenager who has lost three copies of their own. A whole-house rekey brings the key count back to something you can manage. We usually suggest a small number of new keys, a keypad or smart lock code for kids and visitors, and a clear plan for who can reach the garage and side gate.
Inland summer heat in Monrovia bakes door hardware. Finishes fade, latches swell and stick, and cylinders collect fine dust that makes keys drag. Re-pinning a lock is a good moment to clean it and replace tired springs. During a whole-house rekey we note which locks feel gritty or stiff, because heat-stressed hardware often fails soon after. West-facing doors and garage entries tend to be the worst, and we can quote replacements alongside the rekey.
Hillside and foothill homes in Monrovia often have multiple levels, deck doors, side stairs and retaining-wall gates, so the entry count runs higher than the doors you use daily. Wind-driven dust and ash settle into cylinders, and we clean each one as we re-pin it. Keep exits operable from inside for fire season, and make sure whoever evacuates with the family keys knows which ones matter. We plan for steep driveways when scheduling.
Example situations
- A homeowner converts a detached garage into a rental unit with its own door and a small side gate. She wants her key to open everything, while the tenant's key opens only the unit and the gate. We rekey the entire property with a two-level setup, so the tenant's key can never reach the main house, and we record which cylinders carry the extra pins.
- A recently flipped house near Aztec Hotel has Schlage hardware on the front, Kwikset on the back, an unbranded deadbolt on the garage door and a mystery brand on the slider. The owner wants one key. We pin the keyway with the most locks, replace the two outliers with matching hardware and cut three keys. Most of the original hardware stays, so the job is smaller than a full replacement.
- On a half-acre lot off Foothill Boulevard, a homeowner has a workshop, a detached garage, an RV gate, a pool equipment shed and seven padlocks, with a few keys scattered among them. We rekey or replace each lock, key the pool shed apart from the house so the pool service never needs a house key, and tag every padlock key by number, not by name.
- After a separation, a homeowner in Monrovia wants every lock changed before her partner collects his belongings. The front door is the obvious one, but the walk-through turns up nine more cylinders: the garage side door, a slider latch, two gates, a shed and more. We re-pin them all to one new key during a single visit, and she sets a fresh code on her smart lock before we leave.
How the visit works
- Count the keyholes before we arrive. Call or text with a rough list of doors: front, back, garage entry, garage side, gates and sheds. Mention brands if you can read them on the knob or deadbolt. That list helps us estimate the visit and bring parts, but the real count happens on site.
- Gather every key and show you belong at the address. Put every key you own on the table: house keys, garage keys, padlock keys, tiny keys for cabinets and window locks. We try each in each lock to learn what opens what. Some turn out to fit nothing, which is a useful finding.
- Agree on the key plan before any pins come out. Choose the structure first: one key for the whole house, a second for the outbuilding, perhaps a master. We sketch it door by door and write down how many keys of each you want. Changing the plan afterward means pulling cylinders twice.
- Rekey one door at a time and test as we go. We work in an order that keeps you secure: exterior doors first, then the garage, then gates and outbuildings. If your schedule allows only part of the job on one day, the most exposed doors are the ones finished first.
- Cut, count and test every key. We'll hand you a short list showing which door takes which key. Keep it private, since it shows how your keys work. If you ever add a lock, the list tells you which keyway and key to match.
- Reset what rekeying doesn't touch. Take one more lap through the property with the new key in hand. Try each door from outside, with the door shut behind you. If anything binds or sticks, tell us right away. A freshly rebuilt cylinder should turn easily, and problems are simplest to fix early.
Pricing factors
- Condition of the oldest and cheapest locks. A cylinder in good shape re-pins quickly. A sticky, corroded or loose one takes longer or needs replacing, and replacement adds hardware to the quote. We check condition on the walk-through so you see line items instead of a surprise on the day.
- Locks at the edge of the property. Not everything at the edge is yours to change. Cluster mailboxes, HOA gates and utility enclosures belong to someone else. We point out what's out of bounds so the quote covers only what you can legally and practically change. That avoids paying for work you can't use.
- Key plan, key count and timing. Hours and distance play a role. We work every day from 6:30 a.m. to 11:30 p.m., weekends included. A planned daytime slot is easier to schedule than an urgent evening call. The drive from our San Bernardino base counts too, so share your address and any gate code when you book.
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 Monrovia.
What not to do
- Skipping the garage side door and the door from the garage into the house. These two are among the most commonly lent out and the most commonly forgotten. If either one stays on the old key, anyone holding that key still has a way into your home.
- Spending a rekey on a failing lock. A knob with a worn latch or a deadbolt chewed up by a past break-in will keep failing no matter how new the key is. Replace the weak hardware and key it to match, instead of nursing it along.
- Keeping the old keys just in case. They open nothing after the rekey, but a drawer of dead keys confuses everyone later and tempts someone to hand one out. Recycle them, and keep only the new, labeled set and one stored master copy.
Advice before you book
- Look past the key at the door itself. A deadbolt with a short throw, or a strike plate held by half-inch screws, is a weak spot no new key fixes. Ask us to check strikes and hinge screws while we're there; longer screws into the framing make a real difference.
- Ask about your mailbox separately. A private mailbox has its own small key and can usually be rekeyed or replaced. A cluster box belongs to the postal service or the HOA, and its locks follow their rules. Don't lump either one into your house key plan.
- Tell your alarm company about the change. Their keyholder and password lists often name people who no longer need access. Update the monitoring contacts, reset the alarm code and remove old users from the panel and app so every list matches the new key plan.
- Plan for two key sets: one carried every day, one stored. The daily set gets used, lost and copied. The stored set stays in a locked box or with a trusted relative and comes out only when something goes wrong. Cut future duplicates from the stored key, never a worn one.
Reaching Monrovia
Monrovia is about 44 miles from our San Bernardino base, roughly 48 minutes in light traffic via University Parkway to SR-210 West. 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 I-210 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 Monrovia: Monrovia station on the Metro A Line opened on March 5, 2016, at Myrtle Avenue and Duarte Road, beside the city's 1926 Santa Fe depot.
| Neighborhoods | Old Town, South Monrovia Island, Station Square Transit Village, Norumbega Drive foothills, North Encinitas Historic District, Highlands |
|---|---|
| ZIP codes | 91016, 91017 |
| Main routes | I-210, Foothill Boulevard, Huntington Drive, Myrtle Avenue |
| From our San Bernardino base | about 44 miles via University Parkway to SR-210 West (Foothill Freeway), continuing onto I-210 West through Glendora, Azusa and Duarte; exit Myrtle Avenue for Old Town, Station Square and the foothill streets, or Huntington Drive for the west side |
Planning a rekey in Monrovia?
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
What counts as "all" when you rekey all house locks?
Every cylinder that takes a key on your property: the front, back and patio doors, the knob under each deadbolt, the garage entry and side doors, security screens, gates, sheds and any keyed window locks or interior doors you want included. We count them with you on a walk-through, because the locks people forget are the ones that undo a rekey.
How long does it take to rekey every lock in a house?
It depends on the count, the lock condition and how many keys you want. Each door takes only a short while when the hardware cooperates, but a house with a dozen cylinders, three gates and a casita is a longer visit than a small condo. We give you an honest estimate once we know your list.
Is your locksmith licensed, and how can I verify it?
Julian's Locksmith holds California locksmith company license LCO7891, issued by the Bureau of Security and Investigative Services. You can look it up yourself at search.dca.ca.gov. We also verify who you are before we rekey a home, because the Locksmith Act expects it, and the check protects you as the property owner.
Can you rekey all house locks in a single visit?
On most homes, yes. We bring pins, springs, key blanks and cutting tools, and we work door by door so nothing sits apart overnight. Large properties with outbuildings and many padlocks can take longer or need a second visit. Tell us roughly how many doors and gates you have, and we'll say whether one trip is realistic.
How much does it cost to rekey all the locks in my house?
The main drivers are the number of cylinders, how many keyways are in the mix, the condition of the locks, any smart or high-security cylinders and how many keys you want. We quote the full job before starting, and nothing begins until you approve. Call (951) 903-3193 with your door count and we can usually give you a good idea of the scope.
What if I don't have a working key for some of the locks?
We can still rekey them. After we verify your ID and your connection to the home, we open the lock or remove the cylinder, depending on the model, and re-pin it to the new key. Without a working key it can take longer, and a damaged lock may need replacing. Mention it when you call so we bring the right tools.
How far is Monrovia from your base?
Monrovia is about 44 miles from our San Bernardino base, roughly 48 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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