Non-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.
Locksmith in Foster City, CA
A locksmith call in Foster City usually means one of three things: a deadbolt that stopped turning on a lagoon-facing patio door, a rekey after a condo purchase closes, or a storefront lock that took a hit during a weekend rush along Hillsdale Boulevard. Foster City homes and offices are newer than most of the Peninsula, but the hardware ages the same way everyone else’s does, and the salt air off the Bay accelerates corrosion on exterior locksets faster than homeowners expect. We’re Preston Locksmith & Security, and we answer the phone at (409) 405-4485 with a live person, 24/7.
Why Foster City Homes Are Different
Foster City was built on engineered lagoon land, which means most homes sit close to water and get more morning fog and salt spray than neighborhoods inland. Exterior lock hardware in the Marina Point and Whaler’s Island areas corrodes noticeably faster than the same hardware in San Mateo or Belmont, so we replace more tailpieces, strike plates, and exterior handles here than almost anywhere else on the Peninsula. The housing stock is mostly 1960s through 1980s single-family homes and townhome clusters, with a heavy mix of original builder-grade Schlage and Kwikset hardware that homeowners have patched, painted over, and jury-rigged for decades. When we open a Foster City door, we can usually tell within thirty seconds whether the lock has ever been serviced. Most haven’t. The good news is that the work is straightforward for a trained technician: the cylinders are standard, the doors are true, and the fixes hold.
HOA realities also shape the work. Many Foster City townhome and condo communities require locks to match the original building aesthetic, which means a bright brass Kwikset won’t fly in a community that standardized on oil-rubbed bronze Baldwin hardware twenty years ago. We walk homeowners through what their HOA will accept and what needs board approval before we install anything. Permits are not required for residential lock replacement or rekeying in Foster City, but some commercial properties along East Hillsdale Boulevard and Metro Center Boulevard have building-specific access requirements worth knowing about before we quote.
Our Main Foster City Services
Most Foster City calls fall into one of two groups: rekeying after a move-in, and repair work on aging locks that have finally given up. Below are the four services we run in Foster City, each with its own page so you get the full breakdown.
Commercial Locksmith in Foster City
Foster City’s commercial strip runs along East Hillsdale Boulevard and through the Metro Center area, with restaurants, clinics, dental offices, and small retail filling the storefronts. We handle storefront deadlatches, office lever sets, panic bars on rear exits, and high-security cylinder work for medical and professional offices that need key control. If your business is in a multi-tenant building, we coordinate with property management so the work doesn’t conflict with building access rules. Full pricing and the commercial service breakdown are on the Commercial Locksmith in Foster City page.

Rekey Locks in Foster City
Rekeying means swapping the internal pins in a lock cylinder so the old keys stop working. No new hardware gets installed, which is why it’s the standard job after a Foster City home or condo changes hands. We rekey single-family homes in the Dolphin Bay and Bay Vista neighborhoods, plus multi-unit buildings where a property manager wants one master key across several doors. If you lost a key or want one key to work your front door, garage door, and side gate, the Rekey Locks in Foster City page covers what the job involves and what it costs.

Door Lock Repair in Foster City
A door lock repair in Foster City usually starts with a call about a deadbolt that won’t throw, a knob that spins without catching, or a key that only works if you jiggle it at exactly the right angle. We rebuild what’s worn, replace the cylinder or tailpiece when it’s beyond saving, and get the door closing the way it’s supposed to. Lagoon humidity means exterior doors swell and shift slightly with the seasons, so we also check the strike plate alignment during every repair. Details and pricing are on the Door Lock Repair in Foster City page.

Residential Locksmith in Foster City
Residential locksmith work in Foster City means deadbolt installs, smart lock upgrades, patio door locks, and the occasional lockout when a homeowner steps out to grab a package and the wind swings the door shut. We stock hardware that matches what Foster City builders originally used, plus modern upgrades when you’re ready to move past the keyed knob. Every residential job gets a written price before we start and a written guarantee when we’re done. See the Residential Locksmith in Foster City page for the full scope.

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.
Brands We Service in Foster City
We work on the hardware Foster City homes and businesses actually have installed: Schlage and Kwikset on most residential doors, Medeco and Baldwin on higher-end condos and offices. We stock common parts in our service vehicles, so a standard Kwikset cylinder swap or Medeco rekey doesn’t wait on a parts order. See our brands for the complete list.
Pricing for Locksmith in Foster City, CA
| Service | Typical range in Foster City |
|---|---|
| House lockout | $50 – $100 |
| Vehicle lockout | $40 – $85 |
| Rekey a single cylinder | $15 – $40 per cylinder |
| Rekey whole house (4 – 6 cylinders) | $75 – $180 |
| Rekey after a move-in | $100 – $250 |
| Deadbolt installation | $75 – $200 |
| Door knob or lever replacement | $80 – $175 |
| High-security lock installation | $150 – $400 |
| Commercial lock rekey | $20 – $60 per cylinder |
| Mortise lock repair | $120 – $300 |
What pushes a Foster City job toward the top of those ranges is usually hardware condition: a corroded deadbolt on a lagoon-facing door takes longer to remove cleanly than a garage-entry lock that’s never seen salt air. The price we quote on the phone is the price on your invoice. No call-out surcharge added on arrival, no upsell after we open the door.
Neighborhoods We Serve in Foster City
We run calls across the entire city, from the waterfront townhomes near Sea Cloud Park to the residential streets behind the Foster City Library. Typical response time in Foster City is 20 to 35 minutes for lockouts and urgent repair calls.
- Dolphin Bay
- Marina Point
- Whaler’s Island
- Bay Vista
- Metro Center
Service Area – Cities Near Foster City
We serve Foster City locally, and our San Francisco Bay Area dispatch team also covers surrounding cities for scheduled and urgent work. If you’re searching from a neighboring city, see our pages for San Francisco, CA, San Jose, CA, Los Angeles, CA, or San Diego, 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
For lockouts and urgent repair calls, expect 20 to 35 minutes. We’re on the road in Foster City throughout the day and night, and you’ll get a live trackable arrival time when you book. Call (409) 405-4485 and we’ll give you the real ETA, not a four-hour window.
It depends on the community. Many Foster City townhome and condo HOAs restrict lock finish and style, especially on street-facing doors. We’ll help you confirm what’s allowed before we install anything, so your new deadbolt doesn’t turn into a board complaint.
Yes. We give you a written price before any work starts, and that’s the number on your invoice. There’s no call-out surcharge added on arrival and no surprise line items after the fact. If the job changes once we see the lock, we stop and get your approval in writing before proceeding.
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
"Showed me how to rekey a lock myself for the next time."
- Omar W."Commercial office lock replacement. Booked in the app, got a confirmation and a text with ETA. Quick and tidy."
- Jake L."Re-pinned the locks at our rental. Convenient and quick."
- Tina D.






