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 Castro Valley, CA
Rekey Locks is the service Castro Valley homeowners call Citadel Locksmith for most often, and the reason is written into the valley’s housing stock. Mid-century ranches with original mortise locks, detached garages with separate entries, and private gates along long driveways mean most properties here have four or more locks that all need to work off the same key. Call (833) 589-8078 and we’ll get your locks rekeyed to one key, usually same-day.
Why Castro Valley Homes Are Different
Castro Valley sits in a semi-rural East Bay valley where many homes are accessed by long private driveways, front gates, and detached garages rather than a short walk from the curb. From a locksmith’s perspective, that means one address often involves five or six locks: the driveway gate, a side-yard gate, the garage service door, the back door, and the front entry. We carry enough cylinders and pins to do the whole property in one visit, not three.
The housing mix adds another layer. The flats off Castro Valley Boulevard are dominated by 1950s and 1960s single-story tract ranches. A lot of those still have their original mortise locksets, and after sixty-plus years of foundation settlement, the strike plates are often misaligned by an eighth of an inch or more. That means rekeying an old mortise lock here frequently involves re-mortising the pocket and adjusting the strike, not just swapping a cylinder. Meanwhile, the newer custom homes in the Palomares and Five Canyons foothills often run Medeco or higher-end Baldwin hardware. The truck has to carry everything, because Castro Valley does both ends of the spectrum on the same street.
The climate works against exterior locks too. Hot, dry summers in the 90s warp wooden doors and gate frames, which makes deadbolts bind and keys stick. Winter rains do the opposite, swelling wood and shifting gate posts. And the oak trees on the hillsides drop acorns and leaf debris that jam gate hardware. We see seasonal call patterns here that don’t exist in flat, newer East Bay cities.
Styles & brands we work with







Our Main Castro Valley Services
Castro Valley homeowners call us most often for two services: rekeying locks after a move or a key went missing, and emergency response when a lockout happens at the worst possible time. Here’s what each involves here.
Car Key Replacement in Castro Valley
Losing a car key in Castro Valley usually means you’re stranded in a driveway or a strip-mall lot off Castro Valley Boulevard, not parked neatly at a dealership. We cut and program replacement keys without the dealer markup and without you towing the car anywhere. For older vehicles we handle traditional keys; for newer ones we program transponder and fob keys on-site. See the full breakdown at Car Key Replacement in Castro Valley.

Emergency Locksmith in Castro Valley
Lockouts don’t check business hours, and neither do we. Whether you’re locked out of a ranch house near Lake Chabot or you’ve broken a key off in a deadbolt on a Sunday evening, we come out. The semi-rural setting is a factor: some Castro Valley homes are far enough off the main roads that a generic dispatcher will misroute, but we know the valley. Details at Emergency Locksmith in Castro Valley.

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 Castro Valley
Rekeying is the fastest way to take back control of who holds a key, and in Castro Valley it usually means rekeying multiple locks across a whole property, not one deadbolt. The older homes here have original mortise locksets with worn strike plates, many properties have detached garages and gates with their own locks, and seasonal wood movement means hardware gets stiff. Rekey Locks is the fix for all of it: we leave you with one key, old keys dead, no hardware thrown away.
Lock Rekey
Signs you need it
Lost keys, a roommate or tenant moved out, or you bought a home in one of the 1950s-60s tracts off Castro Valley Boulevard and don’t know who holds old copies.
What it costs in Castro Valley
Lock rekeying for a standard cylinder runs $30 to $60 per cylinder, with labor typically $65 to $85 for a service call that covers all the locks on-site.
How we do it
We identify each lock’s keyway, open the cylinder, replace the pins with a fresh set matched to a new key, and test every cylinder for smooth throw in the door.
Rekey Door Lock
Signs you need it
The door lock is original to a mid-century home and you want it working off a modern key, or the wood in the frame has warped and the deadbolt doesn’t turn smoothly anymore.
What it costs in Castro Valley
Rekeying a door lock is the same $30 to $60 per cylinder, and if the strike plate has shifted after decades of foundation movement, re-mortising and alignment runs $65 to $85.
How we do it
We remove the cylinder, re-pin it to the new key, then check the throw of the deadbolt through the strike plate and adjust the pocket or plate until the lock operates with a single hand.
Keyed Alike
Signs you need it
Your front door, garage service door, side gate, and back door all take different keys and you’re tired of carrying a ring that looks like a jailer’s.
What it costs in Castro Valley
We rekey each cylinder at the same $30 to $60 per cylinder rate, so keying four locks alike typically lands between $120 and $240 in cylinders plus the service call.
How we do it
We pull each cylinder, re-pin all of them to the same new key, then test every lock so the single key turns the front deadbolt, the gate lock, and the garage entry smoothly.
What Rekey Locks Costs in Castro Valley
| Item | Typical range in Castro Valley |
|---|---|
| Cylinder rekey (per cylinder) | $30 – $60 |
| Standard service call / labor | $65 – $85 |
| Full home rekey (4-5 cylinders) | $185 – $385 |
How much does it cost to rekey a house in Castro Valley?
Plan on $185 to $385 for a typical Castro Valley home with four or five locks. The price is fully quoted by phone before we dispatch, and that phone quote is the invoice price, no call-out surcharge added at the door.
Can you rekey multiple locks to one key in Castro Valley?
Yes, and that’s the most common job we do here. We re-key front gates, detached garage service doors, side-yard gates, and the house entry so one key works everything on the property.
Brands We Service in Castro Valley
We stock and service the brands serious about security: Schlage, Kwikset, Medeco, and Abloy. Most Castro Valley homes run Schlage or Kwikset, but the foothill estates often carry Medeco or Abloy cylinders, and we keep parts for them locally. Turnaround on rekeying any of these is same-day in most cases. See our brands.
Pricing for Locksmith in Castro Valley, CA
| Service | Typical range in Castro Valley |
|---|---|
| Lock Rekey (per cylinder) | $30 – $60 |
| Locksmith Rekey (labor/service call) | $65 – $85 |
| Rekey Door Lock (per cylinder) | $30 – $60 |
| Rekey Service (standard call) | $65 – $85 |
| Keyed Alike (per cylinder) | $30 – $60 |
| Full home rekey, 4-5 locks | $185 – $385 |
| New lock installation (parts extra) | $65 – $120 per lock |
| Knob/lever/cylinder replacement (labor) | $65 – $85 |
What pushes the price up in Castro Valley is the older stock: original mortise locks that need re-mortising and strike-plate realignment cost more than a simple cylinder swap on a newer knobset. Whatever the job, the price is quoted in full on the phone before anyone is dispatched, and that is the price on the invoice.
Neighborhoods We Serve in Castro Valley
We work the full valley, from the older flatland tracts off Castro Valley Boulevard to the Palomares and Five Canyons foothill neighborhoods. The truck is stocked for both the 1950s ranch house and the newer custom home on the ridge, and the usual response window is same-day for rekeying and immediate for lockouts.
- Castro Valley Boulevard corridor
- Lake Chabot area
- Palomares foothills
- Five Canyons
- Baywood and the flats
Service Area – Cities Near Castro Valley
Citadel Locksmith covers Castro Valley and the surrounding East Bay communities. We regularly handle rekeys and lockouts in Cherryland, CA, Fairview, CA, Hayward, CA, and Ashland, CA. If you’re just over the ridge or down the hill, call and we’ll confirm coverage.
Serving Castro Valley, CA — Our Local Coverage Area
We’re based in the Castro Valley 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 Castro Valley
We run same-day rekey appointments and immediate dispatch on lockouts. The valley’s side roads and long driveways can slow down a dispatch that isn’t familiar with the area, but we navigate them daily.
You will almost never need a permit or HOA approval for a rekey or lock replacement on your own home. Five Canyons and some newer hill associations have standards for visible hardware, so swapping to a matching finish is worth it.
Yes, we cover both ZIP codes fully, from the flats to the Foothill estates. That includes 94546 closer to the boulevard and 94552 up into the hills.
Call (833) 589-8078 for a free estimate on any locksmith work in Castro Valley. We quote the full price by phone before we send anyone out, and that’s the invoice price.
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 Castro Valley Customers Say
"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"Locked out at eleven at night with a kid asleep in the car. He was there in 25 minutes, had the door open in under two, and did not do the thing where the price goes up once he's standing in front of you."
— Greg Lawson"Told me over the phone that what I needed was a five dollar part from the hardware store, not a locksmith. I called him back a month later for real work because of that."
— Yolanda Mendoza