Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Get your free estimateLocksmith in Covina, CA
Most locksmith calls in Covina come down to rekeying, and for good reason. The city’s housing stock runs heavily to mid-century tract homes where builders installed the same keyed hardware on block after block. When you add decades of San Gabriel Valley heat drying out door jambs, you get a specific set of lock problems. Greystone Locksmith has served Covina since 2011, and we work on the lock in front of us – not just the brands we prefer. Call home base for help, or reach us at (866) 497-9415.
Why Covina Homes Are Different
Covina’s housing tells a story you can read in its locks. The postwar boom filled the 91722 ZIP and older parts of 91723 with single-story stucco tract homes, many still carrying original mortise locks and early cylindrical lockets. Those brass cylinders have spent 50 to 70 years turning in dry heat, and the wood around them has shifted with every hot summer. The result is a city where a deadbolt that worked in January sticks in August, and where strike plates slip out of alignment as door jambs dry and warp.
The older 91722 tracts have a quirk we run into routinely: the same builder keyway is still on dozens of neighboring houses. A homeowner who says “my key opens my neighbor’s shed” isn’t describing a fluke – it’s original hardware that was never individually keyed. That makes rekeying in Covina a block-by-block matching problem rather than a single-home job. Landlords managing fourplexes off Citrus Avenue deal with the same vintage hardware across multiple units. Meanwhile, Santa Ana wind events push fine dust into exterior lock cylinders, so keyways here need cleaning more often than in coastal cities.
Styles & brands we work with







Our Main Covina Services
Two calls dominate our Covina schedule: drivers locked out or needing a new key, and homeowners facing an urgent access failure after hours. Both need a locksmith who arrives prepared for the specific job.
Car Key Replacement in Covina
Covina drivers often discover their car key problem in a driveway off Badillo Street or a parking lot near the 10 Freeway. The heat here shortens key fob battery life, and older vehicles still running mechanical keys wear them down over years of daily use. We handle automotive locksmithing in the field, not outsourced to a third party. Whether you need a basic key cut or a transponder programmed, we arrive with the equipment to complete the job on the spot. Read more about Car Key Replacement in Covina.

Emergency Locksmith in Covina
A lockout at 11 p.m. in a Covina rental complex or a broken deadbolt on a 1970s tract home entry can’t wait for business hours. Our emergency locksmith service responds to time-critical lockouts and access failures when every minute counts. We’re built for the moments that can’t wait, with technicians available beyond standard business hours. When you’re locked out or locking down, Greystone handles both. Full details on Emergency Locksmith in Covina.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Rekey Locks in Covina
Rekeying in Covina starts with a simple question: how many other keys open this lock? In the older 91722 tracts, the answer is often surprising. Those mid-century builders installed identical keyed entry hardware across entire blocks, so the key in your pocket may match a dozen neighbors’ doors. Rekeying fixes that quietly and affordably. It’s often the smarter move – we’ll tell you which is right for your situation. For a full breakdown of the service, see Rekey Locks.
Lock Rekey
Signs you need it
You’ve moved into a Covina home, lost track of who has a spare key, or discovered your key opens a neighbor’s door in an older tract.
What it costs in Covina
Rekeying a standard lock in Covina typically runs $20 to $45 per cylinder, with most homes needing three to five cylinders done.
How we do it
We remove the cylinder, swap the internal pins to match a new key, and test every lock on site, including locks keyed alike if you want one key to work all doors.
Rekey Door Lock
Signs you need it
A roommate moved out, a key went missing, or you bought a Covina house and don’t know how many copies of the old key are floating around.
What it costs in Covina
Expect $20 to $45 per door lock cylinder, plus a trip charge if you’re outside our core Covina service area.
How we do it
We rekey the existing hardware on the door – no need to replace a functioning lock – and hand you new keys while the old ones stop working immediately.
Rekey Service
Signs you need it
You want one key to work every exterior door in your Covina home, or you manage a rental property and need a fresh key set between tenants.
What it costs in Covina
Each cylinder runs $20 to $45, and keyed-alike setups across multiple doors cost the same per cylinder.
How we do it
We match all designated locks to a single keyway or create a master key system for your property, then test each lock before we leave.
What Rekey Locks Costs in Covina
| Item | Typical range in Covina |
|---|---|
| Standard lock rekey (per cylinder) | $20 – $45 |
| Full home rekey (3-5 cylinders) | $60 – $225 |
| Keyed alike setup (per cylinder, same key) | $20 – $45 |
Is rekeying worth it if my locks are from the 1960s?
Usually yes, if the cylinder itself still works. Rekeying only changes the pins inside, so a worn but functional mortise lock can accept a new key as long as the cylinder isn’t cracked or seized from decades of Covina heat.
Can you rekey my rental property between tenants?
Yes, and it’s one of the most common calls we handle for Covina landlords managing fourplexes and single-family rentals. We rekey each unit to a unique key – or set up a master key – so old tenants’ keys stop working.
Brands We Service in Covina
We work across Schlage, Kwikset, and Medeco hardware, and we carry common pins and cylinders in the truck for same-day turnaround. For the full line of hardware we’re certified on, see our brands. High-security hardware like Medeco and Abloy requires a locksmith who knows it cold – that’s us.
Pricing for Locksmith in Covina, CA
| Service | Typical range in Covina |
|---|---|
| Lock rekey (per cylinder) | $20 – $45 |
| Locksmith rekey (full door) | $20 – $45 |
| Rekey door lock (single cylinder) | $20 – $45 |
| Rekey service (full home, 3-5 cylinders) | $60 – $225 |
| Keyed alike (per cylinder) | $20 – $45 |
| Car key replacement (basic mechanical key) | $75 – $150 |
| Car key replacement (transponder/chip key) | $125 – $250 |
| Car key replacement (key fob to push-to-start vehicle) | $175 – $350 |
| Emergency lockout (residential, business hours) | $60 – $120 |
| Emergency lockout (after hours) | $90 – $180 |
| Emergency lock rekey (lockout + rekey) | $60 – $160 |
What pushes a Covina job higher: a 1960s mortise lock that needs a retrofit kit rather than a simple rekey, or a car key that requires programming equipment beyond a standard transponder. The price we quote on the phone is the price on the invoice. No call-out surcharge added on arrival, and no bait pricing – you’ll know your total before anyone is dispatched.
Neighborhoods We Serve in Covina
We cover all three Covina ZIP codes – 91722, 91723, and 91724 – and everything from the older single-story tracts near the downtown core to the denser rental clusters off Citrus Avenue. Response times across Covina typically run 30 to 60 minutes for emergency calls, depending on traffic and where you are in the city.
- Downtown Covina (Citrus Avenue corridor)
- North Covina (91723 and 91724)
- South Covina (91722 tracts)
- Charter Oak
- Via Verde
Service Area – Cities Near Covina
Greystone Locksmith serves the San Gabriel Valley beyond Covina’s city limits. If you’re in Irwindale, CA, Azusa, CA, Citrus, CA, or West Covina, CA, we handle the same range of rekey, automotive, and emergency work with the same upfront pricing.
Serving Covina, CA — Our Local Coverage Area
We’re based in the Covina area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Locksmith in Covina
Most emergency calls in Covina are reached within 30 to 60 minutes. Traffic on the 10 Freeway and San Bernardino Road can extend that during peak hours, but our dispatcher gives you a realistic window when you call, not a vague promise.
No permit is required for rekeying or standard lock replacement on residential or commercial property in Covina. If you’re in an HOA, some older associations want approval for visible hardware changes, but a simple rekey with existing hardware doesn’t trigger that.
Yes. We set up and maintain master key systems for landlords and property managers across Covina’s rental stock, from single-family homes to fourplexes. Each unit gets a unique key, and you get a master that opens them all, with a written key schedule so you know exactly who has what.
Locked out or locking down, Greystone handles both. Call (866) 497-9415 for a free estimate on any locksmith work in Covina – we’ll quote the full price before anyone is dispatched.
What happens when you call
- 1A real person answersNo phone trees — talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Covina Customers Say
"Rekeyed every lock in the house the day after we closed. Six doors, all matched to one key, done in about ninety minutes."
— Yolanda Martinez"The old deadbolt was mounted crooked by whoever lived here before and had been sticking for years. He redrilled and reset it properly rather than just replacing the hardware."
— Brooke Ackerman"Programmed a transponder key for a 2014 model that the dealership wanted an absurd amount for. Same key, fraction of the price, took him twenty minutes in my driveway."
— Grace Lin