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 Foster City, CA
Rekeying is the locksmith job we do most often in Foster City, and the reason is built into the streets themselves. Entire lagoon-front neighborhoods went up in the 1960s with the same builder, the same floor plans, and often the same lock model on every front door. Add bayfront salt air that stiffens and corrodes hardware year-round, and you get a city where rekeying is less a one-off repair and more a standard security step whenever someone moves in, rents out, or changes who has a key. Call us at (877) 265-4385 and we’ll tell you exactly what your job should cost before anyone rolls a truck.
Why Foster City Homes Are Different
Foster City is an engineered island, built on fill dredged from the Bay in the 1960s and laid out around a network of man-made lagoons. That geography shows up in the hardware. Homes on the bay side, especially along neighborhoods like the Islands and the streets fronting the lagoon system, see noticeably faster corrosion on exposed brass and steel locksets than identical homes a mile inland. The fog comes in off the water most mornings, and the salt in that marine layer works its way into cylinders, deadbolts, and strike plates. We see it most often as a key that turns fine one week and stiffly the next, or a deadbolt that won’t throw fully at night because the internal pins have accumulated corrosion.
The housing stock compounds it. Most of the city is 1960s-to-1980s planned-community construction: single-family ranchers, two-story contemporaries, and a high share of townhomes and condos. A lot of those units still carry their original builder-grade Schlage or Kwikset locksets, or a once-replaced version of the same. Because so much of Foster City is HOA-governed, visible hardware changes often require approval, which pushes homeowners toward rekeying the existing lock rather than swapping the whole thing out. And with attached units and shared entries, master-keying requests are common: one key for the owner, another for a property manager, and a third for a tenant, all working different doors in the same building.
Styles & brands we work with







Our Main Foster City Services
Ask any Foster City homeowner what locksmith work they’ve called for, and two answers dominate: a car key that stopped working or got lost, and a lockout at the worst possible moment. Here’s how each works here.
Car Key Replacement in Foster City
Foster City’s carport-heavy townhome complexes and open driveways on older lagoon streets mean car key problems surface at home almost as often as they do in a parking lot. Transponder keys, proximity fobs, and push-to-start remotes all fail eventually, and the local alternative to a dealership tow is having a locksmith cut and program a replacement on-site. We do it without you leaving your driveway, and it usually costs less than the dealership quote for the same key. Full details are on our Car Key Replacement in Foster City page.

Emergency Locksmith in Foster City
Locked out off Marlin Avenue at midnight, or standing on a lagoon-front deck with the slider latched behind you, the only thing that matters is that someone picks up and shows up. Our emergency line handles Foster City lockouts day and night, including re-entry into homes, condos, and vehicles. No scare tactics, no bait pricing – just a clear quote before dispatch and a technician who gets you back inside. Read the full rundown on our Emergency Locksmith in Foster City page.

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 Foster City
In Foster City, rekeying is the smartest security move you can make after a move-in, a tenant change, or a relationship change, and it almost always costs less than replacing hardware. Because so many lagoon-front streets were built by a single builder, neighbors sometimes discover they have identical lock models – and in rare cases, near-identical pinning from the factory. Add the fact that bay-side locks corrode faster and you get a city where rekeying doubles as both a security reset and a chance to overhaul tired internals. The full service breakdown lives on our Rekey Locks hub page; below is how it plays out specifically in Foster City.
Lock Rekey
Signs you need it
You’ve moved into a new home, ended a tenancy, or can’t account for every copy of a key that was ever handed out.
What it costs in Foster City
A standard single-cylinder lock rekey in Foster City typically runs $95 to $140 for the first lock, with additional locks at $25 to $45 each on the same visit.
How we do it
We remove the lock cylinder, swap the internal pins to match a new key, and reinstall it – usually under 30 minutes per lock, with the old keys made useless immediately.
Rekey Door Lock
Signs you need it
The key sticks, the cylinder feels gritty when you turn it, or you want one key to work every exterior door instead of carrying a ring of three.
What it costs in Foster City
Rekeying a door lock to match an existing key runs $80 to $130 per lock in Foster City, slightly higher on the bay side where corroded internals need more cleanup.
How we do it
We disassemble the cylinder, clean or replace worn pins, and repin the lock so your chosen key operates it – without changing any visible hardware, which keeps HOAs happy.
Keyed Alike
Signs you need it
You’re tired of carrying separate keys for the front door, the garage, and the side gate, or you manage a rental property and want a single key across units you own.
What it costs in Foster City
Keying multiple locks alike costs $30 to $50 per cylinder after the first, on top of the base rekey fee for the first lock.
How we do it
We repin each lock to the same key code so one key operates every cylinder on the list, then test each one in front of you before we leave.
What Rekey Locks Costs in Foster City
| Item | Typical range in Foster City |
|---|---|
| First lock rekey (service call included) | $95 – $140 |
| Each additional lock, same visit | $25 – $45 |
| Keyed alike, per additional cylinder | $30 – $50 |
Can you rekey my Foster City locks the same day?
Yes. Most rekey jobs in Foster City are completed same-day, usually within a few hours of your call. We carry pinning kits for all eight brands we service, so there’s no waiting on parts.
Will rekeying damage my original hardware?
No. Rekeying replaces only the internal pins, not the lock body or trim. Your existing Schlage, Kwikset, Baldwin, or other hardware stays exactly as it is, which matters for HOA compliance in Foster City.
Brands We Service in Foster City
We work on the lock you already have, whether it’s a builder-grade Schlage on a 1970s rancher, a Multi-Lock high-security deadbolt on a lagoon-front condo, or a Sargent commercial set on a shared HOA entry. We stock common pins, cylinders, and parts for these lines locally, so most Foster City rekeys and repairs don’t require a second trip. See the full breakdown on our brands page.
Pricing for Locksmith in Foster City, CA
| Service | Typical range in Foster City |
|---|---|
| Lock rekey, first lock | $95 – $140 |
| Additional locks, same visit | $25 – $45 each |
| Keyed alike, per additional cylinder | $30 – $50 |
| Rekey door lock to match existing key | $80 – $130 |
| Standard lockout service | $80 – $160 |
| Car key replacement, basic metal key | $75 – $145 |
| Transponder or chip key | $120 – $220 |
| Key fob replacement and programming | $120 – $240 |
| Lock repair or hardware replacement | $90 – $210 |
| Locksmith service call fee | $40 – $80 |
Two things push Foster City pricing slightly above inland averages: bay-side corrosion that adds cleanup time on older locks, and HOA-governed properties where we coordinate with management before starting. Whatever the number, the price we quote on the phone is the price on your invoice – no dispatch fee surprise, no “parts upgrade” add-on after the fact.
Neighborhoods We Serve in Foster City
We cover every corner of Foster City, from the lagoon-front streets to the inland subdivisions. Most calls get a response within 30 to 45 minutes depending on where you are in the city and the time of day.
- The Islands
- Whale Isle
- Dolphin Isle
- Mariners Island
- Bay Vista
Service Area – Cities Near Foster City
Cypress Lock & Key serves Foster City and the surrounding Peninsula communities. If you’re just over the border, we regularly handle rekeys, lockouts, and car key work in Redwood Shores, CA, San Mateo, CA, Belmont, CA, and Highlands-Baywood Park, CA.
Serving Foster City, CA — Our Local Coverage Area
We’re based in the Foster City 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 Foster City
Most Foster City calls see a technician arrive within 30 to 45 minutes. You’ll get a more exact window when you call, based on your specific neighborhood and current call volume. The quote you receive includes the response, so there’s no separate dispatch fee on arrival.
Rekeying almost never requires HOA approval because it changes no visible hardware. Replacing a lock or changing the finish color may need a sign-off from your association. We can work within whatever your HOA requires, and we’re familiar with the common restrictions in Foster City’s planned communities.
Yes. We serve the entire 94404 ZIP code, from the bay-side streets to the inland neighborhoods. The only difference on lagoon-front properties is that we may spend extra time cleaning corrosion from exterior hardware, which we factor into the quote before dispatch.
If you need a rekey, a lockout response, or a car key cut and programmed in Foster City, call (877) 265-4385 for a free estimate. You’ll speak to a locksmith who knows this city’s hardware, not a call center reading a script.
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 Foster City Customers Say
"Quoted a price on the phone and honored it. After the last locksmith I called, that alone is worth a review."
— Sarah Vaughn"Got me back in and the price was fair for the hour. He did arrive closer to 45 minutes than the 20 he estimated, which felt long standing outside, but he was honest that traffic was the problem."
— Marcus Prince"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."
— Lisa Sullivan