House lockouts
Re-keying
Deadbolt upgrades
Smart locks
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 estimateFast, Reliable Car Key Replacement Across Antioch
Losing a car key in Antioch usually happens at the worst possible moment, whether you’re parked off Lone Tree Way, hauling tools out at a job site near the 94531 hills, or fumbling with keys at the marina after a day on the Delta. A replacement transponder key for most vehicles in Antioch runs $180 – $340, and we can get to most parts of the city same day. Call us at (877) 265-4385 and you’ll get a straight answer on cost before anyone rolls out.
We know Antioch not as a pin on a map but as the city where the river meets the hills, where 94509’s mid-century ranch blocks sit a few miles from 94531’s newer tract homes, and where salt air off the water quietly eats at lock hardware. Cypress Lock & Key works the full problem, not just the key. If your car key is dead and your gate lock is seized from Delta moisture, we handle both in one visit.
- Typical transponder key replacement in Antioch: $180 – $340
- Rekeying a gate, workshop, or outbuilding lock to match your car key set: $25 – $65 per lock
- Non-destructive car lockout entry: $95 – $160, most cases done in under 30 minutes
- Service coverage: 94509 and 94531, plus Oakley, Brentwood, Knightsen, and Bay Point
Why Cypress Lock & Key Is Antioch’s Preferred Car Key Replacement Company
Antioch isn’t a place where a generic locksmith model works well. The city’s older 94509 side near the river sits on 1950s – 1980s housing with original mortise hardware, while 94531 up the hill runs on late-90s and 2000s deadbolts, keypads, and HOA-standardized locks. A tech who only carries modern blanks will get stumped fast on the older blocks. We carry both, and we’ve spent enough time on Antioch’s roads to know which side of the city we’re driving into before the truck leaves.
That local knowledge shapes how we scope every job. If you’re on an acreage parcel off the Delta shoreline and you want your workshop deadbolt, gate lock, and truck key matched to one key set, we arrive with the right cylinders and a weathered-hardware plan, not a surprise return trip. Our Car Key Replacement team handles automotive transponder work alongside traditional lock rekeying, so one truck covers the whole property.
Noel Carver runs Cypress Lock & Key with a simple bar: do the job correctly the first time, and be the shop that actually answers the phone at night. Antioch customers call us because they don’t want to choose between a dealership quote and a locksmith who can’t touch their gate hardware. We do both sides of the driveway.
Styles & brands we work with
Our Car Key Replacement Services in Antioch
Transponder Key Programming and Duplication
Most vehicles built after 2000 need a transponder chip, and Antioch’s split fleet means we see everything from older Ford and Chevy work trucks in 94509 to newer SUVs and hybrids up in 94531. We cut and program transponder keys on-site at your location in Antioch, no tow to a dealership required. If you have one working key, duplication is straightforward; if you’ve lost all keys, we can originate a new one at the vehicle.
Rekey of Gate, Outbuilding, and Workshop Locks
Rural and acreage properties around Antioch, especially near the Delta shoreline, often have three or four separate key systems: the house, the gate, the workshop, and the outbuilding. We rekey gate and outbuilding locks to accept the same key you use on the vehicle keychain, which collapses your ring to one or two keys total. On older 94509 ranch properties, that can mean sourcing vintage mortise cylinders for the house front door while rebuilding the gate lock with a fresh pin and tumbler set, and we carry parts for both jobs on the same truck.
Non-Destructive Entry for Locked Vehicles
Locking keys inside a truck or car on a long service drive off a 94531 hillside parcel is different from doing it in a strip-mall parking lot. We open locked vehicles without drilling or prying, using air wedges and long-reach tools that don’t mar weather stripping or door frames. If the vehicle is on acreage, give us the gate code or the property access note when you call so we don’t waste a trip at the driveway end.
Matched Key Sets for Multi-Building Properties
Property owners around Antioch who run workshops, ADUs, or detached garages ask us for one thing more than anything else: make every lock on the parcel turn with one key. We do that by rekeying each cylinder to a master pattern, then cutting car keys and house keys that fit the same ring without forcing you to choose between factory fobs and local hardware. For 94531 HOA-standardized homes with keypad deadbolts, we can keypad-and-key match so the physical override key and the vehicle key don’t fight each other.
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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Antioch
We stock and service hardware across the brands Antioch homes and vehicles actually run: Baldwin and Sargent on higher-end residential deadbolts, Mul-T-Lock and Abloy on gates and workshops where the owner wants serious pick resistance, and the common Kwikset and Schlage repair in Antioch for sets found throughout both 94509 and 94531. If your gate hardware near the Delta has corroded to the point a standard cylinder won’t seat, we’ll rebuild it with a Mul-T-Lock or Abloy cylinder that’s built for exposure. Vehicle side, we program most major manufacturer transponder systems, so the car key you get in Antioch is the same blank and chip spec a dealership would supply.
Read more about our automotive work on our Car Key Replacement service page.
Common Car Key Replacement Problems We See in Antioch Homes
- Delta-driven corrosion on gate and outbuilding cylinders. The marine moisture that rolls off the Sacramento – San Joaquin Delta and up through the river corridors settles into exterior locks faster than you’d think. We regularly see antioch waterfront parcels where the gate lock is seized solid after two winters, and the job starts as a car key replacement and turns into a cylinder rebuild.
- Worn transponder keys paired with original mortise house locks. In the 94509 ranch blocks near the river, homeowners often hand us a vehicle key with the transponder shell cracked open, plus a mortise lock on the house front door that’s been turning since the Eisenhower administration. We source vintage parts for the mortise and program a fresh transponder key in the same stop.
- Long service drives without a complete scope. Hillside parcels in 94531 and acreage near the Delta shore mean 10 to 15 minutes from the gate to the house. If we arrive without enough cylinders or the right key blank, you’re waiting days for a return trip. We scope every Antioch property call on the phone before dispatch, asking what buildings and locks exist on the parcel so the truck leaves loaded correctly.
- Matched key sets on properties with mixed hardware generations. A 94509 house may have a modern deadbolt added to the back door while the front door still carries the original mortise body. We cut and pin both to one key without replacing usable hardware, which keeps your antioch property secure and your key ring light.
Pricing for Car Key Replacement in Antioch, CA
A transponder key replacement in Antioch runs $180 – $340 for most vehicles, including the key blank, chip programming, and the service call. Basic non-transponder keys for older trucks and fleet vehicles fall in the $35 – $90 range. Rekeying a gate, workshop, or outbuilding lock to match your vehicle key set costs $25 – $65 per lock cylinder, and if the cylinder has corroded from Delta moisture, a replacement cylinder adds the hardware cost, which we quote before any work starts.
The price you hear on the phone is the price on the invoice. We don’t quote a teaser rate and show up with a different number, and we don’t add a call-out surcharge when the tech arrives. If you’re outside the immediate 94509 or 94531 zones but still in the wider Antioch area, tell us where the property sits when you call (877) 265-4385 and we’ll factor the drive into the estimate up front.
We Also Serve Cities Near Antioch
Our service area includes Oakley, Brentwood, Knightsen, and Bay Point. Much of our east Contra Costa work comes from Antioch residents who recommended us to neighbors across the county line, and we run the same pricing and same single-visit scoping for those areas. For a full look at our Antioch coverage, see our Car Key Replacement in Antioch city page.
Serving Antioch, CA — Our Local Coverage Area
We’re based in the Antioch 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 – Car Key Replacement in Antioch
Yes, that’s the job we do most often on acreage and rural parcels around Antioch. We cut and program your vehicle transponder key at the property, then rekey gate, workshop, and outbuilding cylinders to the same key pattern so one key turns everything. Tell us how many locks are on the parcel when you call (877) 265-4385 and we’ll quote the full job before anyone drives out.
The salt-laden marine air and winter damp off the Sacramento – San Joaquin Delta corrode lock internals fast, especially on waterfront and river-corridor parcels in Antioch’s 94509 zone. We rebuild those cylinders with corrosion-resistant brands like Mul-T-Lock or Abloy, and for heavily exposed hardware we recommend an annual graphite or spray-lube maintenance pass before the wet season starts.
Yes. We use non-destructive entry tools, air wedges and long-reach rods, that open locked vehicles without drilling, prying, or marking the door frame. For Antioch properties with long driveways or gated access, tell us the gate situation when you book so we arrive without waiting at the driveway end.
We do. The 1950s – 1980s ranch and stucco homes in Antioch’s 94509 blocks still carry original mortise bodies and weathered builder-grade cylinders, and we stock or source vintage mortise components plus modern replacement cylinders so the front door and the back door can share one key. No hardware replacement required unless the body is beyond repair.
Rekeying changes the internal pins so a new key operates the existing lock, which costs $25 – $65 per cylinder and keeps the original hardware in place. Replacing swaps the entire lock body or cylinder for new hardware, which costs more and is only needed when the old part is seized, cracked, or otherwise unserviceable. For most Antioch properties, rekeying is the smarter first step. Call (877) 265-4385 for a straight answer on your specific locks.
On a rural parcel out toward the Antioch Delta shoreline, a customer with a workshop and detached outbuilding needed a transponder key replaced for the truck and asked us to rekey the gate and shop deadbolt to the same key while we were on site. Our tech cut and programmed the transponder key at the vehicle, then rekeyed the weathered exterior lock cylinder and gate hardware, which had corroded fast from the marine moisture, into one matched set so the owner wasn’t making three separate trips or juggling keys.
When you need a car key replaced and a gate, workshop, or outbuilding lock matched to it in one visit, call us at (877) 265-4385. We’ll give you an honest price over the phone, and the estimate is free whether we come out or not.
Written by Noel Carver, Owner at Cypress Lock & Key, serving Antioch and east Contra Costa County.