Walnut, Los Angeles County
How to Rekey All House Locks in Walnut in One Visit
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 Walnut, we count every keyhole with you before quoting.

When you decide to rekey all house locks, you're usually after one thing: certainty that no old key anywhere still works. Maybe a relationship ended, a key ring with your address tag went missing, or you've simply lost count of who got a copy over the years. Rekeying every cylinder on the property delivers that certainty without replacing hardware you like. Julian's Locksmith comes to your home in Walnut, counts every keyed lock with you, re-pins them all on-site and cuts the new keys before leaving. Call (951) 903-3193 and we'll start with a quick inventory over the phone.
How this works in Walnut
All means more than most people expect. On a typical single-family home, the list starts with the front door, which often has two cylinders: a deadbolt plus a knob or lever, or a handleset whose key lives in the deadbolt. Add the back door, the door from the garage into the house, and the garage side door, each commonly with a knob and a deadbolt. Then come the outliers: a steel security screen with its own cylinder, French doors with a euro cylinder, a slider with a small keyed latch, a side gate with a keyed deadbolt or rim lock, an RV gate padlock, a shed, a casita or a keyed home office. Some homes also have keyed window locks or a manual T-handle on an older overhead garage door. Mailboxes are separate: they're small cam locks with their own keys, and cluster boxes follow post office or HOA rules. When you set out to rekey all house locks, the first job is writing that list down, because a cylinder that never makes the list never gets re-pinned.
What we can do on-site
- Garage access points. The garage usually has more ways in than any other part of the house: the door into the home, a side service door, sometimes a manual T-handle lock on the overhead door, plus remotes and a keypad. We re-pin every keyed cylinder there and remind you that the opener's remotes and keypad code need resetting separately.
- Gates, fences and pool enclosures. Pool gates come with a safety requirement: California's pool safety rules expect them to close and latch on their own. When we rekey a pool gate lock, we check that the gate still swings shut and catches without help. A keyed gate that has to be pulled closed by hand isn't doing its job.
- 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. Keypads, lockboxes and hidden spares are the access points people forget once the keys are changed. A lockbox left from a sale, a code shared with a former cleaner, a magnetic key holder under the bumper of a car you sold: we ask about each one, because a whole-house rekey only works if the side doors are closed too.
- 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.
Local factors in Walnut
Student rentals and shared houses near Hilmer Lodge Stadium see keys scatter every time a lease turns over. If you own a house that students rent, or you manage the lease for roommates, rekeying all house locks between tenancies keeps the key count honest. Number the keys, assign each one to a named tenant on the lease, and plan the rekey for the gap before the next group moves in so there's no overlap.
On a horse property, the keys that matter go beyond the house: the tack room, feed room, barn doors, arena gate and trailer locks. Rekeying all locks in Walnut means deciding who gets which key, whether that's you, a trainer, a farrier, boarders or a hired hand. We can set up a small master arrangement so your key opens everything while helpers carry only the keys for the areas they need. Feed dust is hard on cylinders, so we clean as we go.
In 55-plus and retirement communities around Walnut, the key list often includes caregivers, family, neighbors and management. A whole-house rekey lets you decide who truly needs access. Lever handles and keypad locks are easier on arthritic hands than small keys, and we can fit them while we rekey. Emergency access matters, so we talk through a lockbox or trusted-contact plan instead of hiding a key outside.
Common situations
- On a half-acre lot off I-10, 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.
- A homeowner installs a Schlage Encode on the front door and considers the house secured. The back door, garage entry and side gate still use the old key that a former contractor copied. We rekey those to match the Encode's backup cylinder, so a single physical key opens everything, and we show her how to prune old app users.
- A remodel crew held a house key for three months, along with the garage keypad code. The work is finished and the family is pleased, but they would like the key count reset. We rekey the exterior doors and the garage entry, help them change the keypad code, and walk the property to be sure nothing else, like a side gate or lockbox, still works for the crew.
- After a separation, a homeowner in Walnut 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. Tell us why you're rekeying. A separation, an inherited house and years of loaned copies call for slightly different plans. Knowing the reason helps us ask about codes, remotes and hidden spares you might not think to mention.
- Gather every key and show you belong at the address. We confirm you own or lawfully occupy the home before touching a cylinder. Photo ID plus a utility bill, mortgage statement, lease or similar proof works. For an inherited house, we may ask to see the paperwork showing you can act for the estate.
- Agree on the key plan before any pins come out. Think through who gets keys. Household members, the pet sitter, the gardener and grown children may need different access. Naming them now lets us build levels into the cylinders instead of giving everyone the same key by default.
- 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. Expect the key count you agreed on, no more. Extra copies are available later from a key you keep in storage. Make duplicates from that master copy, not from daily-use keys, so the cuts stay precise and the count stays in your hands.
- Reset what rekeying doesn't touch. Rekeying changes metal keys only. Garage remotes, keypad codes, smart lock users, alarm codes and any lockbox are separate. We walk through each with you and help with the ones we handle, so the old ways in are closed on the same day.
What affects the cost
- How long your inventory list turns out to be. Some owners rekey the exterior doors only and leave interior keyed doors for later. That's a reasonable way to control scope, but remember what you skip. Bedroom or office locks matter if the person you're guarding against once lived there.
- 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 Walnut.
Mistakes to avoid
- Forgetting the codes, fobs and hidden spares. New metal keys don't change a garage keypad, a smart lock user list, a lockbox left from a sale or a spare in the planter. Walk the list of other ways in, and reset each one the same day.
- 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.
What to do before we arrive
- Use every new key on day one. Try each in its lock from outside with the door closed behind you. A key that sticks now is a fixable problem. One that fails a month later is much harder to diagnose, and we'd rather adjust it while the tools are still out.
- 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.
- Plan around pets and children. We move between yard and house repeatedly, opening gates and doors. Secure dogs indoors or in a bedroom before we arrive, and let us know about any gate that has to stay latched. Kids shouldn't be left with a spare key on a necklace.
- Retire the hide-a-key. Fake rocks, planter bases and doormat spots are the first places a burglar looks. Give a spare to a trusted person, or switch visitors to a keypad code you can change. If you do keep a key outside, lock it in a hardened box.
Getting to Walnut
Walnut is about 40 miles from our San Bernardino base, roughly 46 minutes in light traffic via I-215 South briefly to SR-210 West. 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 La Puente Road, 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 Walnut: Mt. San Antonio College opened in 1946 on what is now a campus of about 420 acres and enrolled nearly 30,000 students in fall 2024.
| Neighborhoods | Hunter Hills Estates, Lemon Creek, Walnut Hills, Walnut Grove senior condominiums, Country Hollow, Snow Creek |
|---|---|
| ZIP codes | 91789 |
| Main routes | SR-60, SR-57, I-10, Valley Boulevard |
| From our San Bernardino base | about 40 miles via I-215 South briefly to SR-210 West (Foothill Freeway) through Rialto, Fontana, Rancho Cucamonga and La Verne, then SR-57 South to the Temple Avenue exit and west past Mt. SAC to Grand Avenue, Amar Road and La Puente Road; I-10 West to SR-57 South as the alternate, and SR-60 West through the 57/60 confluence to Lemon Avenue, Fairway Drive or Nogales Street for Valley Boulevard and West Valley |
Planning a rekey in Walnut?
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
Will every lock in my house end up on one key?
If every lock shares a keyway, or we can bring the outliers into line with replacement cylinders, yes. Some owners choose to leave a workshop, rental unit or guest house on a separate key on purpose. We lay out the plan door by door before starting, so you see exactly which locks share a key.
How many new keys will I get?
As many as you agreed on during the plan, and no more. Most households start with two or three copies of the main key, plus a stored master set. Extra keys are easy to add later but harder to take back. We cut and test each key before we leave, and you count them with us.
Can sliding doors and security screens be rekeyed?
Some can. Many sliding doors use a latch with no cylinder at all, and some have a small wafer lock that often can't be rekeyed to match. Security screen doors frequently have a rekeyable or replaceable cylinder. We check each one during the walk-through and tell you which can join the house key and which should be swapped.
Can the garage or guest house have a different key?
Yes. We can set up two separate keys, or a small master arrangement where your key opens everything and another key opens only certain doors, such as an ADU, a workshop or a gate. Each extra level adds some setup, and we explain how it affects security before you decide. The plan is written down before we re-pin anything.
I rent my home. Can I rekey all the locks?
Check your lease first, since many require the landlord's permission for lock changes. California law, in Civil Code section 1941.3, requires landlords to provide working deadbolts on main entry doors, and tenants with certain protective orders or police reports have rights to a lock change. We can explain the process, but you should confirm who authorizes the work.
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 far is Walnut from your base?
Walnut is about 40 miles from our San Bernardino base, roughly 46 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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