Fontana, San Bernardino County
Change Locks After Buying a House in Fontana, Door by Door
Short answer: New locks only stop old keys. Whether you change locks after buying a house or just rekey them, the garage opener, alarm code, smart lock accounts and keypads still carry the seller's settings until you reset them. Julian's Locksmith handles the locks in Fontana and tells you what to reset yourself. Call (951) 903-3193 to book.

Most people who search for how to change locks after buying a house aren't in a panic. The papers are signed, the keys are in hand, and the movers aren't due until the weekend. The real question is what change should mean. Some locks only need new pins inside, some need new hardware, and a few need a stronger door frame behind them. In Fontana, Julian's Locksmith walks every exterior door with you, tells you which locks are worth keeping and which are tired, and prices both paths before we start. You decide door by door, so the budget goes where the weak spots are. Call (951) 903-3193 to set the visit.
How this works in Fontana
When you change locks after buying a house, you are really choosing among three different jobs, and the price and the result differ for each. Rekeying keeps your existing hardware and swaps the pins inside, so old keys stop working. Replacing the cylinder alone suits mortise locks and rim locks, where the lock body stays and the part your key enters is new. Replacing the whole lockset suits hardware that is loose, worn, mismatched or bargain-grade. We score each door on four things: its grade, its condition, how well it fits the door prep, and whether it matches the rest of the house. A solid Grade 1 or Grade 2 deadbolt in good shape earns a rekey. A rattling knobset from a builder's catalog earns a swap. In Fontana most houses end up with a mix, and that is fine. What matters is that each door gets the answer it actually needs, and that you see the reasoning before you approve anything.
What we can do on-site
- Front door deadbolt and handleset swaps. Heavy decorative handlesets from the builder's supplier often fail first at the thumb latch or the trim screws. When you change locks after buying a house, the front door is where we most often recommend a fresh Schlage, Kwikset or Baldwin set with a proper deadbolt below it, keyed to match the rest of the house.
- Garage-to-house door and side doors. Many garage-to-house doors carry a knob lock the previous owner never used. When you change locks after buying a house, make that door lock like the front one: a Grade 2 deadbolt, spring hinges if it should self-close, and a key that matches the household set.
- Smart locks and keypads: reset, replace, re-register. Considering a smart lock as you change locks after buying a house? We check the door's alignment, the bolt throw and the Wi-Fi range before you buy. A smart lock on a door that sticks only adds frustration. We also keep a keyed backup on the lock, because batteries do eventually run down.
- Condos, townhomes and HOA-controlled hardware. Some associations require a particular finish or a key held by management. We ask before ordering hardware, so you don't install something that has to come back off. If the HOA holds a key to your unit, we help you decide how to handle it.
- Getting into a house that came with no keys. Sometimes the seller's keys never arrive, or half of them don't work. We verify that you own the house, open the door without damaging the lock where possible, and then replace or rekey it on the same visit. That way you aren't locked out twice.
What's different about Fontana
Family houses in Fontana usually have many people coming and going: kids, grandparents, sitters, friends. That's why it matters to change locks after buying a house, and why a keypad or smart lock can help, with codes for each person that you can cancel. We recommend lever handles for small hands and deadbolts that engage easily. We also talk through key control for teenagers, so a lost key becomes a small problem.
Homes built decades ago in Fontana often have mortise locks, brass knobs and lock sets that have outlived several owners. Those locks are worth saving when they're sound. We usually replace the cylinder, rekey and keep the lock body, then add a modern deadbolt where the door lacks one. If the hardware is worn or missing parts, we can match it or suggest a sympathetic modern set. The goal is a safe door that still looks right.
In gated communities you control your own entry doors, but the association controls the gate, the pool, the clubhouse and often the mailbox. After closing, ask the HOA about gate fobs, remote codes and any rules on exterior hardware finish. We change your home's locks and leave the community's equipment alone unless the board authorizes work. Pass along a list of what the previous owner may still hold, such as gate remotes and pool keys.
Situations this covers
- A typical call: a townhome buyer in Fontana discovers the HOA controls the exterior door finish. The new locks must match an approved bronze color, the garage entry has a separate lock, and the community mailbox key comes from the association. We'd confirm the rules before ordering, change the unit's locks to an approved finish and point the owner to the board for the mailbox key.
- For example, a couple buying their first house near Lewis Library and Technology Center wants a smart lock on the front door. The door sags slightly, so the bolt drags. We'd shim the hinges and square the strike before installing, because a smart lock can't fix a sticking door. Then we'd set up their account, enter individual codes and leave a keyed backup, since batteries eventually run down.
- Consider relocating buyers who need to change locks after buying a house in Fontana from out of state. Their agent has the keys, the home has been vacant for weeks and nobody has looked closely at the locks. We'd verify ownership and identity before any work, check every entry once access is arranged, and have the doors keyed to the new owners before the moving truck arrives. Their first night starts with fresh keys.
- For example, a family moves into a house with a pool and finds five padlocks: the side gate, the equipment shed, a toolshed, a storage cabinet and a wall box. Only one key came with the house. We'd cut off the old padlocks, fit a keyed-alike set, and replace the gate latch so the pool enclosure closes and latches on its own, which matters with young children around.
Step by step with Julian's Locksmith
- Call with your closing date and what you've been handed. Start the conversation before closing if you can. We can't change anything until the house is yours, but we can plan the visit, pencil in a time and tell you what paperwork to have in hand. Planning ahead avoids a scramble on closing day.
- Show proof of purchase and possession. Before work starts we verify who you are and that the house is yours: photo ID plus a signed closing statement, recorded deed or settlement paperwork. If possession differs from the recording date, bring the contract page that says so. It protects you as much as the property.
- Walk every door and score the hardware. Take us to the doors that worry you first. Then we cover the rest systematically, front to back, noting the key type on each one. This is also when we spot extras: a pet door, a window that doesn't latch, a gate with no lock at all.
- Decide door by door: keep, rekey or replace. We lay out a better and a best path for the front door and a simpler plan for the others. Many owners choose a mix: a premium deadbolt up front, solid rekeys elsewhere. If you want to stage the work over several weeks, we help you put the doors in the right order.
- Install, align and fit-check each lock. We install each lock to the manufacturer's spec, check the bolt throw into the strike, and test the latch with the door closed and under load. If the door sags or the strike is off, we fix the door first, because new hardware on a poorly fitted door fails early.
- Test every key, hand over, and list what's still open. Before we leave, we show you how to use any smart or keypad lock, how to change codes and where the batteries go. We also explain key-control basics: where to store spares, how to track copies and why a restricted key can matter.
Pricing factors
- Door and frame condition. Sometimes the lock is fine and the door is the problem. Fixing alignment is cheaper than replacing hardware that is failing because the door rubs. A few shims and a re-set strike can save a lock that was never really broken. We check first, so your money goes to the real fix.
- Keys, key control and matching. Extra keys cost per copy, and restricted keys cost more than standard ones. A typical household needs a few keys per adult, plus a couple for emergencies. We help you decide how many you actually need rather than cutting a dozen.
- Closing-date timing, travel and our hours. We work every day from 6:30 a.m. to 11:30 p.m. Weekends are included. A closing on Friday afternoon can mean a Friday evening or Saturday visit. Distance also counts, since we drive to you, and we quote the visit up front.
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 Fontana.
What to do before we arrive
- Measure before you buy hardware yourself. Most doors take a 2-1/8 inch cross bore and a 1-inch edge bore, with a backset of 2-3/8 or 2-3/4 inches. A mismatch means a trip back to the store or an unwanted new hole in the door.
- Ask your agent to confirm in writing that the lockbox is removed and every key, remote, fob and code has been handed over. Then count what you receive. Anything missing at the end of closing is a reason to change locks sooner, not later.
- After the lock change, test every key on every door the next morning, in daylight. A key that sticks or a latch that catches shows up better after a night of settling. If anything's off, call us; we'd rather adjust it now than have you locked out later.
- Factory-reset any smart lock the seller left behind and register it under your own account. Delete every old user, change the Wi-Fi password, and note which family member has which code. A reset cleans the lock's memory, not the app account, so ask the seller to remove theirs.
Common errors that cost time and money
- Forgetting the openings that don't use a key. Sliding doors, garage remotes, the alarm panel and smart home accounts keep the seller's settings until you clear them. A new deadbolt doesn't help if the slider lifts off its track. Walk the whole house with a list before you call it done.
- Mixing brands and expecting one key. Schlage, Kwikset and other makers use different keyways, so a mixed set means a ring of keys. Decide on a key plan before you buy, or ask us to check what can share a key.
- Replacing the lock but not the strike. A shiny deadbolt screwed into a frame with short screws is still weak. A reinforced strike and 3-inch screws make the difference between a door that survives a kick and one that splits.
Reaching Fontana
Fontana is about 16 miles from our San Bernardino base, roughly 22 minutes in light traffic via Palm Avenue to I-215 South. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Rush hour on SR-210 can stretch a drive considerably. We'd rather give you a realistic arrival window than an optimistic one, and we'll call you if a closure or a crash changes the plan.
About Fontana: Kaiser Steel shut the Fontana mill down on December 31, 1983, and California Steel Industries still runs rolling operations on part of the old site.
| Neighborhoods | North Fontana, Panorama, Village of Heritage, South Fontana, Sierra Lakes, Coyote Canyon |
|---|---|
| ZIP codes | 92335, 92336, 92337 |
| Main routes | I-10, I-15, SR-210, Sierra Avenue |
| From our San Bernardino base | about 16 miles via Palm Avenue to I-215 South, then SR-210 West (Foothill Freeway) to the Sierra Avenue exit and south into downtown; I-215 North to I-15 South for the Sierra or Summit Avenue exits in North Fontana; I-215 South to I-10 West for Sierra or Cherry Avenue in South Fontana |
Late calls are fine, up to a point. We run until 11:30 p.m. every night, but a call at 11:10 from a city far from our base may be booked for the next morning rather than rushed. We'll tell you which it is on the phone, plainly, so you can decide whether to wait for us or make other arrangements.
Before we open a home or business, we ask for photo ID and something tying you to the address: a lease, a utility bill, mail with your name on it, or written authorization from the property manager. It adds a minute or two, and it's the same check you'd want if a stranger tried to get into your place.
Locked out in Fontana?
Call (951) 903-3193 with the address and what's locked. You'll get an arrival estimate and a quote before anyone heads out, and when we arrive we'll ask for ID that ties you to the property. If a child or pet is shut inside a hot car or building, call 911 first.
Frequently asked questions
What if the seller is renting the house back after closing?
Wait. A rent-back means the seller has the right to live there until the agreed date, so you can't change the locks until they leave. We schedule your visit for move-out day and verify that you own the property. Bring the rent-back agreement if you have it. Meanwhile you can plan the hardware and buy anything you want to supply yourself.
I bought a house with a tenant living in it. Can I change the locks?
Not on an occupied rental. The lease continues after a sale, and California law doesn't let an owner lock out a tenant or change locks to force them out. Talk to a landlord-tenant attorney about your rights and the proper notice. Once the tenant moves out and returns the keys, we can rekey or replace the locks for the next occupant.
What about an old smart lock the seller left?
Treat it as untrusted. Factory-reset it, register it under your own account and delete every old user code. Some brands tie the lock to the seller's app account, so ask them to remove it. If the model is old or the reset isn't clean, replacing it is easier than worrying. We can reset, re-register or swap it.
How soon after moving in should I change the locks?
Ideally change locks after buying a house on possession day, before the first night, or the day after. Every week you wait gives old keys more time to wander, and the first week is when boxes and doors stand open. If you've already moved in, don't wait for a better time; book a visit now. We'll get the exterior doors done first and finish the rest when it suits you.
Can I change the locks before closing escrow?
No, not unless the seller agrees in writing. Until escrow closes and possession passes under your contract, the home belongs to the seller, and changing the locks can cause problems with the sale. At the final walkthrough, look at the doors and plan. Your agent can confirm the possession date, and we can schedule the visit for that day or the next. We need proof that possession has passed before we start work.
Can you change the locks on closing day or over the weekend?
We work every day from 6:30 a.m. to 11:30 p.m. Weekends are included. If you close on a Friday afternoon, book a visit that evening or on Saturday morning and ask us how to keep the home safe in the meantime. If you close Monday through Thursday, we can often visit that evening or the next morning, depending on our schedule.
How far is Fontana from your base?
Fontana is about 16 miles from our San Bernardino base, roughly 22 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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