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 Half Moon Bay, CA
Rekeying locks is the service Half Moon Bay homeowners call us for most often, and the coastal climate here makes it a recurring need rather than a one-time fix. Salt-laden fog works its way into exterior lock cylinders, deadbolts, and gate hardware, corroding pins and causing keys to stick or snap. Citadel Locksmith has served Half Moon Bay since 2011, and we stock the parts to rekey everything from vintage mortise locks on Main Street to modern smart-lock hardware in newer gated communities. Call (833) 589-8078 when you need a lock changed, a key replaced, or an emergency response on the coast.
Why Half Moon Bay Homes Are Different
Half Moon Bay sits on the isolated San Mateo County coastline, cut off from the peninsula by Highway 92 over the hill. That geography matters when a lock fails: a homeowner on Frenchman’s Creek Road or in Alsace Lorraine can’t wait forty minutes for a locksmith from San Mateo to arrive, and weekend traffic on Highway 1 through pumpkin-farm season makes everything slower. The fog belt and salt air corrode exterior locks and deadbolts faster than inland. We see lock cylinders that have seized from marine moisture after just two or three winters, and gate hardware on ocean-facing properties that needs replacement every few years. The housing stock compounds the issue. Older coastal cottages and ranches often have wood-framed doors with aging mortise locks or builder-grade Kwikset hardware that was never meant to withstand salt air. Mid-century subdivisions have their own quirks: worn latch assemblies, misaligned strike plates, and decades of paint fouling the mechanism. Newer upscale homes and gated estates may have better hardware, but many were built with smart locks that still rely on a mechanical key cylinder, and that cylinder corrodes just like any other. A large portion of Half Moon Bay homes are vacation properties and second homes that sit empty for months at a time. When owners return for a summer stay or a pumpkin-farm weekend, we get calls about locks that have seized from disuse or keys that no longer turn smoothly.
Styles & brands we work with







Our Main Half Moon Bay Services
Two calls dominate our work in Half Moon Bay: drivers who have lost or damaged a car key and need a replacement without a tow over the hill, and homeowners or renters facing a lockout or security emergency that cannot wait for regular business hours. Here’s how each works on the coast.
Car Key Replacement in Half Moon Bay
Car key failure hits harder in Half Moon Bay than it does inland. If a key breaks at Pillar Point Harbor or a transponder stops recognizing near Surfer’s Beach, the nearest dealership is over Highway 92 in San Mateo, and a tow adds hours and cost. We cut and program replacement keys, including transponder and remote-head keys, for most makes on-site. The salt air doesn’t spare automotive locks: we see corroded door cylinders and ignition wear from beach parking. One call covers the car, the house key, and the spare. Learn more about Car Key Replacement in Half Moon Bay.

Emergency Locksmith in Half Moon Bay
A lockout on the coast at night is a different situation than one in a dense city. There’s no all-night store to wait in, temperatures drop fast after the fog rolls through, and a broken lock on a rental cottage can strand an entire family. Our emergency service covers lockouts, broken keys extracted from cylinders, locks damaged by attempted break-ins, and deadbolts that fail shut. We treat urgent security as the core of the job, not an afterthought. For details on response and what to do before calling, see Emergency Locksmith in Half Moon Bay.

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 Half Moon Bay
Rekeying is the fastest way to take back control of who holds a key, and in Half Moon Bay it’s rarely a one-time job for one lock. We cover the full rekey process at Rekey Locks, and here’s the local reality: a vacation home that has cycled through cleaners, contractors, and rental guests needs rekeying after every change in the keyholder list. A coastal cottage that has spent five winters in fog needs the cylinder cleaned and the pins replaced more often than an inland home because the salt air accelerates pin wear. Most Half Moon Bay rekey jobs involve multiple doors, a mix of mortise cylinders and modern deadbolts, and at least one gate or shed lock.
Lock Rekey
Signs you need it
You have lost track of how many copies of your key are out there, or you have recently bought, inherited, or rented a property and cannot confirm who still holds a working key.
What it costs in Half Moon Bay
A standard lock rekey in Half Moon Bay typically runs $75 to $160 for the service visit and first lock, with each additional cylinder from $20 to $45 depending on whether it’s a standard pin tumbler or a mortise cylinder.
How we do it
We disassemble the lock cylinder, replace the internal pins with a new pinning that matches a fresh key, reassemble it, and test the key in front of you before we leave.
Rekey Door Lock
Signs you need it
Your key works roughly in the cylinder, sticks on insertion, or turns with resistance, and you notice the hardware has visible corrosion or the finish has begun to pit from salt air.
What it costs in Half Moon Bay
Rekeying a single door lock in Half Moon Bay typically runs $75 to $160 on-site, but if we need to service a corroded cylinder, expect $20 to $35 extra for cleaning and lubrication before the rekey.
How we do it
We remove the cylinder, clean any salt or oxidation from the pins and bore, install the new keyed pins, lubricate with a corrosion-resistant lubricant suited to coastal conditions, and verify smooth operation.
Keyed Alike
Signs you need it
Your keyring holds three or four different keys for the front door, back door, garage side door, and gate, and you want one key to operate all of them.
What it costs in Half Moon Bay
Keying multiple locks alike runs $75 to $160 for the first lock, then $20 to $45 per additional lock on the same visit.
How we do it
We repin each cylinder to match a single key, resetting all locks to the same keyway, then test the one key across every lock and hand you the keyring in one piece.
What Rekey Locks Costs in Half Moon Bay
| Item | Typical range in Half Moon Bay |
|---|---|
| Service visit and first lock rekeyed | $75 – $160 |
| Each additional standard cylinder | $20 – $45 |
| Mortise or high-security cylinder (Medeco, Mul-T-Lock, Abloy) | $40 – $70 each |
How long does a rekey take in Half Moon Bay?
Most rekeys are done same-day in Half Moon Bay. A single door takes 20 to 30 minutes. Call (833) 589-8078 for a firm quote.
Is the price quoted over the phone the final price?
Yes. The full rekey price is quoted on the phone before anyone is dispatched, and that is the price on the invoice. No surcharges are added on arrival.
Brands We Service in Half Moon Bay
We rekey, repair, and replace hardware across the brands serious about security, including Schlage, Kwikset, Medeco, and Abloy. Our van carries common pins, cylinders, and replacement parts for these lines, which means most Half Moon Bay jobs are completed in one visit rather than two. See our brands for the full roster.
Pricing for Locksmith in Half Moon Bay, CA
| Service | Typical range in Half Moon Bay |
|---|---|
| Lock rekey (first lock) | $75 – $160 |
| Each additional lock rekeyed same visit | $20 – $45 |
| Mortise or high-security cylinder rekey | $40 – $70 each |
| Emergency lockout response | $90 – $190 |
| Broken key extraction from lock | $70 – $140 |
| Car key replacement (non-transponder) | $50 – $130 |
| Car key replacement (transponder key) | $150 – $350 |
| Car key replacement (remote-head or smart key) | $250 – $450+ |
| Deadbolt replacement (basic) | $65 – $150 plus hardware |
| High-security deadbolt installation | $150 – $350 plus hardware |
Corroded cylinders from the fog belt add labor time to many Half Moon Bay jobs, and vintage mortise locks on Main Street storefronts and historic cottages can require extra disassembly. The full price is always quoted on the phone before we dispatch, and there is no call-out surcharge added when we arrive.
Neighborhoods We Serve in Half Moon Bay
We work throughout the 94019 ZIP code, from the historic downtown up through the coastal hills and along Highway 1. Our typical response window in Half Moon Bay is 40 to 60 minutes, with weekend pumpkin-farm traffic sometimes pushing that higher on Highway 92 approaches.
- Downtown Half Moon Bay and Main Street
- Alsace Lorraine
- Frenchman’s Creek
- Ocean Colony and the gated coastal communities
- Miramar and the Highway 1 beachside homes
Service Area – Cities Near Half Moon Bay
Citadel Locksmith also covers the coastside communities north of Half Moon Bay, including El Granada, CA, Moss Beach, CA, and Montara, CA. Over the hill, we serve Hillsborough, CA for larger estate properties that need a wider brand range. If you’re not sure whether your address falls in our area, call (833) 589-8078 and ask.
Serving Half Moon Bay, CA — Our Local Coverage Area
We’re based in the Half Moon Bay 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 Half Moon Bay
Most Half Moon Bay calls are reached within 40 to 60 minutes. Highway 1 traffic around pumpkin-farm season and summer weekends can add time, so call (833) 589-8078 before a small problem becomes an urgent one.
Rekeying and lock replacement on a residential door does not require a permit in Half Moon Bay. Historic-district storefronts on Main Street may have hardware specifications, so we match existing mortise cylinders where required rather than swapping them out.
Yes, and it’s one of the most common jobs we do in Half Moon Bay. We rekey the existing hardware so previous guests’ keys stop working, and we can key all doors alike so the next guest gets one key for every lock. Call (833) 589-8078 to schedule it between turnovers.
For a free estimate on any lock, key, or emergency job in Half Moon Bay, call Citadel Locksmith at (833) 589-8078. We quote the full price before dispatch, and that is the price you pay.
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 Half Moon Bay Customers Say
"Something came loose about a month after the work. Called them, and they were back out the next day and fixed it at no charge. Didn't argue, didn't try to bill me for the trip."
— Carmen Castillo"Quoted a price on the phone and honored it. After the last locksmith I called, that alone is worth a review."
— Eduardo Vargas"Rekeyed every lock in the house the day after we closed. Six doors, all matched to one key, done in about ninety minutes."
— Beatriz Martinez