Covina, Los Angeles County
Change Locks After Buying a House in Covina? Start Here
Short answer: Yes, change locks after buying a house, but only once you have possession. For each door you can keep the hardware and rekey it, or install new locks when the old ones are worn, builder-grade or mismatched. Julian's Locksmith visits Covina, checks your closing papers and ID, walks every door and quotes the plan before starting. Call (951) 903-3193.

The first night in a new home sets the tone. You don't need every upgrade done by then, but you do want exterior doors that lock with keys only your household holds. Everything else can wait for the next paycheck: the keypad, the matching finish, the side gate. When you change locks after buying a house, treat it as a sequence, not a single purchase, and the order we suggest is exterior doors first, garage entry second, back-of-house third, extras last. Julian's Locksmith helps Covina buyers sort that sequence on the first phone call, so the work fits your move date and your budget. Call (951) 903-3193.
How this works in Covina
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 Covina 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
- Rekeying the locks worth keeping. Hybrid plans suit most houses. The solid front deadbolt gets new pins, the wobbly back-door knob gets replaced, and the new lock is keyed to match. Mixing brands works only when the keyways agree, which is why we check them before promising a single key for the whole 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.
- Sliding doors, French doors and patio security. Sliding glass doors often come with a latch that a thin screwdriver can defeat. We add a secondary lock, a pin or a track bar, and replace worn latch hooks. French doors get flush bolts and a proper keyed deadbolt on the active leaf.
- Strike plates, frames and hinges. Door alignment decides how a lock feels. If the bolt rubs the strike, the bolt wears and the key sticks. We shim hinges, adjust the strike and file the mortise where needed so your new deadbolt throws a full inch without a shoulder push.
- 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.
Local factors in Covina
Family houses in Covina 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 Covina 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.
Inland heat is hard on door hardware. Metal expands, finishes fade, and a south-facing front door can reach temperatures that warp thin lock parts. When you change locks after buying a house in Covina, we look at how exposed each door is and recommend finishes and brands that hold up to sun, such as durable PVD or powder-coated sets. Smart locks need extra thought, since heat shortens battery life. We suggest a keyed backup on every one.
Situations this covers
- A typical call: an estate sale in an older neighborhood off Barranca Avenue. Several siblings, cousins and a longtime caretaker all had keys to the family house, and nobody kept count. The buyers want the locks changed and the old mortise lock on the front door saved. We'd replace its cylinder, rekey the rest, and hand the new owners a written key count so the ring doesn't spread again.
- A typical call: a townhome buyer in Covina 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, buyers in Covina who want to change locks after buying a house close on a Friday afternoon and plan to move in over the weekend. We're open every day, so the sensible plan is to book Saturday morning from 6:30 a.m., before the moving truck shows up. Until then they keep the keys they were handed on their person, lock what they can, and avoid leaving the place empty overnight.
- A typical call: the seller rents the house back for nine days after closing, and the buyers want the locks changed right away. We'd explain that the seller is entitled to live there until the agreed date, so nothing changes until the keys are handed over. We'd schedule the visit for move-out day, bring the hardware in advance, and have the whole house keyed to the buyers that afternoon.
Step by step with Julian's Locksmith
- Call with your closing date and what you've been handed. Call (951) 903-3193 to plan how you'll change locks after buying a house. Give us your closing date, the house address and what the seller or agent has handed over so far: keys, remotes, codes, a lockbox combination. Tell us if the seller is renting back or a tenant lives there. That tells us when we can start and what to bring.
- Show proof of purchase and possession. A buyer's agent's word isn't enough for us, and we explain why. Locks protect people, so we ask the owner for ID and ownership papers, or in a rent-back, proof that possession has passed. If you can't be on site, call first and we'll explain what we need.
- Walk every door and score the hardware. We walk the house with you and look at every keyed opening: front, garage entry, back, side, sliders, French doors, gates. For each we note the brand, the grade, the condition and the door prep. That scorecard drives every recommendation that follows.
- 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. Rekeys follow the same discipline: new pins, a test with every key, and an inspection of the cylinder for wear. We cut keys on the spot with the same care, checking each cut against the lock's code instead of copying a copy.
- Test every key, hand over, and list what's still open. Our last step is the follow-up list: the garage opener, the alarm code, mailbox and gate keys, and any smart-home accounts. We tell you which tasks we can help with and which you can handle with the owner's manual, and we leave you with a clear picture.
How we quote the job
- How many doors move from rekey to replace. A house with four keyed doors is a different job from a house with nine. We count front, garage entry, back, side, sliders, French doors and gates, then price the plan door by door. You can choose to do the critical ones now and the rest later.
- Keys, key control and matching. Keyed-alike sets mix best within one brand. Mixed brands can still share a key if we rekey or choose compatible cylinders. We check keyways first, then quote the cleanest path to one key for the household. That check takes minutes and prevents ordering locks that can never share a key.
- Closing-date timing, travel and our hours. Possession day is busy for buyers, movers and locksmiths alike. Booking a day ahead gives you the best choice of times. We give an honest ETA when you call, and we don't promise a window we can't keep. Call as soon as you have a closing date, even if the exact day may still shift.
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 Covina.
Practical tips before you call
- Photograph each exterior door and its hardware at the final walkthrough. A clear picture of the front lock, the garage-entry knob and the slider latch helps us plan the visit before we arrive and gives you a record of what you inherited in Covina.
- 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.
- 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.
- Test the door before you blame the lock. Close it slowly and watch the latch meet the strike. If the bolt drags or the door rubs, shim the hinges or call us before installing new hardware, because a fresh lock on a sagging door fails early.
What not to do
- Buying the cheapest set at the home store for every door. Bargain-grade locks fit the budget and fail under pressure. Spend more on the front and garage entry doors, and save on the interior privacy knobs where the stakes are lower.
- 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.
Getting to Covina
Covina is about 39 miles from our San Bernardino base, roughly 45 minutes in light traffic via I-215 North to I-15 South. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
Once the evening commute thins out on Arrow Highway, drive times usually shrink. That makes an evening call before closing a practical option for non-urgent jobs that you couldn't fit into the workday.
About Covina: Covina was founded in 1884 by Joseph Swift Phillips on about 2,000 acres of the former Rancho La Puente and incorporated as a city on August 14, 1901.
| Neighborhoods | Covina Park area, Kelby Park area, Downtown / Old Town Covina, Village Oaks Drive and Jalapa Park area by I-10, Charter Oak, Sunkist Park area |
|---|---|
| ZIP codes | 91722, 91723, 91724 |
| Main routes | I-210, I-10, SR-57, Azusa Avenue |
| From our San Bernardino base | about 39 miles via I-215 North to I-15 South, then the Foothill Freeway (SR-210/I-210) West through Rancho Cucamonga, Upland, La Verne and San Dimas to the Citrus Avenue exit in Glendora and south on Citrus Avenue into downtown; Sunflower Avenue exit for Charter Oak and the east side, Azusa Avenue (SR-39) for the west side, or I-15 South to I-10 West through Pomona for the south end near IKEA |
Friday is a full day for us. We begin at 6:30 a.m. and close at 11:30 p.m., the same as every other day, Saturday included. If a lock fails after 11:30 p.m., call us when we reopen at 6:30 a.m., and in the meantime fall back on a neighbor's spare key, a night with family, or a door you can secure from inside.
Expect a few questions and a signature. A licensed California locksmith has to document who asked for a lock to be opened or a key to be made, and we follow that rule on every job in Covina. If a locksmith skips the ID check entirely, ask yourself whose door they'd open next.
Locked out in Covina?
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's the difference between changing locks and rekeying?
Rekeying changes the pins inside your existing lock so a new key works and old keys don't. Changing, or replacing, means installing new hardware. Rekey sound, quality locks you like. Replace locks that are loose, worn, damaged, mismatched or low-grade, or when you want features like a keypad. Most houses end up with a mix. We inspect each door and give you the options with prices before we start.
Is it better to install smart locks when I change them?
It can be, if your doors are in good shape and your family will use the features. A smart lock adds codes for each person, remote locking and an activity log. It also needs batteries, a Wi-Fi plan and a keyed backup. For a garage entry or back door, a simple keypad is often enough. We look at your doors and your habits, then recommend what fits.
What grade of lock should I choose for the exterior doors?
ANSI/BHMA Grade 1 is the most durable, Grade 2 is a strong residential standard, and Grade 3 is basic and often found in builder packages. For exterior doors we usually recommend Grade 2 or better, along with a reinforced strike and 3-inch screws. Grade matters most for deadbolts, since they resist force. We show you the grade on the package so there's no guesswork.
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.
What proof do you need before changing my locks?
Photo ID plus something that ties you to the address, such as a closing statement, recorded deed, settlement paperwork or utility bill. If a seller is renting back, we also want to see that possession has passed. We check before work begins, and the checks protect both of us. If you're unsure what you have, call (951) 903-3193 and we'll tell you what to gather.
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 far is Covina from your base?
Covina is about 39 miles from our San Bernardino base, roughly 45 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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