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.
Fast, Reliable Lock Installation & Rekey Across Antioch
A standard lock rekey in Antioch runs $25-$45 per cylinder, and a full smart lock installation with hardware typically lands between $180-$420 depending on the lock model and door condition. We quote the firm price on the phone before anyone drives to your street, and that’s the number on the invoice. No arrival surcharges, no “discovered damage” upcharges. Call (331) 310-8471 and a live person answers.
Antioch homeowners deal with a particular combination of problems: Delta humidity that pits exterior cylinders, and a housing stock where thousands of east-side tract homes were built with the same builder-grade Kwikset and Schlage hardware now reaching the end of its service life at the same moment. We know which cylinder models are failing on which streets because we replace them every week in Prewett Ranch, Deer Valley, and the Lone Tree corridor. If your key sticks, your deadbolt won’t throw, or you never rekeyed after closing, this page tells you what’s actually going on and what it costs to fix.
- Rekeying in Antioch runs $25-$45 per cylinder, written before we start.
- Smart lock installation runs $180-$420 including hardware and adjustment to your door.
- New construction homes in Deer Valley and Lone Tree often still open with the builder’s key until rekeyed.
- Delta humidity corrodes exterior lock cylinders faster here than in Brentwood or Oakley.
- Every job includes a documented photo record and the 365-Day Done Right Promise.
Why Novak Lock & Security Is Antioch’s Preferred Lock Installation & Rekey Company
Local call pattern. Antioch has the highest concentration of same-build-year tract housing in East Contra Costa. When a deadbolt seizes on a Deer Valley cul-de-sac, we usually know the exact model before we arrive because we’ve rekeyed or replaced the same unit on the same or adjacent street that month. That’s not a marketing line. It’s a field observation from our Lock Installation & Rekey crews who work the Prewett Ranch and Lone Tree corridor weekly.
Live dispatch, no queue. When you call (331) 310-8471 about a lockout on Lone Tree Way or a rekey on a mid-century bungalow off A Street, a person answers. We don’t route Antioch calls through a national call center. Your call is answered, your address is confirmed, and a dispatcher gives you a written price range on the spot, per Haven Standard Clause 1: the price on the phone is the price on the invoice.
Documented work. Every technician arrives in uniform, background-checked, and leaves behind a photo record of the work performed. Daniel Novak, who leads Novak Lock & Security, has built the company since 2002 on a rule most locksmiths won’t commit to: a firm quote, in writing, before a single cylinder is touched. We’ve installed and serviced over 60,000 locks, keys, and systems since then, and each one carries a record.
Our Lock Installation & Rekey Services in Antioch

Smart Lock Installation
Antioch’s newer subdivisions, particularly the 1990s-2000s builds east of Hillcrest Avenue, have standardized hollow-core steel doors that make smart lock retrofits easier than in older west Antioch homes. That said, a smart lock installed on a door that’s out of square from summer heat expansion will fail to throw the bolt cleanly. We check the frame alignment, the strike plate clearance, and the existing deadbolt grade before we mount the smart lock. In Antioch, we install Yale Assure and Schlage Encode locks most often, because they tolerate the temperature swings of Delta summers without motor strain. Expect $220-$420 including hardware and labor.

Keypad Lock Installation
A keypad deadbolt is the fastest upgrade for an east Antioch tract home where the builder’s Kwikset is finally failing. You get a code you can change after a contractor, house cleaner, or dog walker has access, and you don’t carry keys. In Deer Valley and Prewett Ranch, we commonly pair a keypad deadbolt with a rekey of the existing knob or lever so both entry points match. Installed cost runs $180-$320, depending on whether we’re replacing the deadbolt or adding a keypad unit to an existing lock. We stock the common finishes for this market: satin nickel and aged bronze.

Keyless Entry and Electronic Lock Systems
If you’re running a multi-door setup or you manage rental properties in Antioch, keyless entry with audit trail capability matters. We install and program electronic lock systems from Schlage and Yale that log access events, so you can see which code opened which door and when. For landlords near downtown Antioch with four-plexes and smaller apartment buildings, we schedule a walkthrough, give you a flat per-lock price in writing, and document every entry point before and after. No hourly billing surprises.

Biometric Lock Installation
Biometric locks work by scanning a fingerprint or, on some models, a fob or smartphone credential. In east Antioch, where summer heat can exceed 100°F, we recommend biometric units with a physical key override. If the fingerprint scanner fails from sweat, heat, or a dead battery, you still need a cylinder to fall back on. We install biometric deadbolts from eufy and Kwikset Halo and always program a backup code or key. Expect $280-$480 for hardware and installation on a standard front door. For commercial or high-traffic doors, we recommend scheduling an assessment first.

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.
Trusted Brands We Service in Antioch
We install, rekey, and repair the full range: entry-grade Kwikset and Schlage on the low end, Medeco and Mul-T-Lock high-security cylinders on the high end, plus Baldwin and Yale for hardware-grade door sets. We carry common Schlage and Kwikset keyways in the van, so a lunchtime rekey in Prewett Ranch doesn’t wait on a parts order. If you want high-security cylinders that resist picking and bumping, we’ll quote Medeco or Mul-T-Lock at a flat per-cylinder price and schedule the work with a written scope. No show-up-and-see pricing, ever.
Common Lock Installation & Rekey Problems We See in Antioch Homes

- Builder’s-key handover. In Deer Valley and Lone Tree, new owners often move in and never rekey. The builder’s key, the listing agent’s key, and the subcontractor’s key still open the door. We rekey every cylinder in one visit, typically under an hour, and issue new keys on the spot.
- Delta-driven cylinder corrosion. Antioch sits at the inland edge of the Sacramento-San Joaquin Delta. Moisture-laden air pushes into exterior cylinders and pits the brass pins, so keys hang up or stop turning. This corrosion pattern is noticeably worse here than in Brentwood or Oakley, which sit further inland and dry out faster.
- Summer heat and door frame expansion. When temperatures push past 100°F, wooden and some composite frames absorb heat and swell. Deadbolts bind. New smart locks misalign and fail to throw the bolt. We adjust the strike plate, realign the mortise if needed, and re-set the lock to operate with clearance.
- Builder-grade hardware reaching end-of-life. The 1990s-2000s east Antioch buildout used entry-level Kwikset and Schlage passage sets and deadbolts. Those units start failing between 15 and 25 years. We see entire cul-de-sacs where several homes are dealing with the same worn-out cylinder model in the same season.
One case from Prewett Ranch sticks with us. A homeowner called because her front deadbolt seized entirely, the key wouldn’t turn and the door was locked. The cylinder had pitted from years of Delta humidity, a pattern we’ve documented on that exact Schlage model throughout the subdivision. We rekeyed the deadbolt to a bump-resistant keyway, replaced the strike plate on the hollow-core steel door, and matched the finish to the existing hardware. Before we packed up, two neighbors came over holding the same builder-grade Schlage deadbolt with the same corrosion. We rekeyed one that afternoon and scheduled the other for the next day. That’s Antioch in a nutshell: same build year, same hardware, same failure curve, hitting all at once.
Pricing for Lock Installation & Rekey in Antioch, CA
Here’s what Antioch homeowners can expect, in writing:
- Rekey service, per cylinder: $25-$45. Most single-family homes need 3-6 cylinders rekeyed. A typical Antioch rekey job runs $75-$270.
- Smart lock installation: $180-$420 including hardware. Yale Assure and Schlage Encode are the most common we install in Antioch.
- Keypad deadbolt installation: $180-$320 depending on door prep and finish.
- Biometric lock installation: $280-$480 including hardware and programming.
- Key duplication: $3-$8 for standard keys, $15-$40 for high-security or restricted keys like Medeco or Mul-T-Lock.
- Lockout service (non-destructive): $75-$150 depending on lock type and time of day.
Every quote includes labor, hardware if we’re supplying it, and cleanup. We don’t add a dispatch fee, a “service call” fee, or a fuel surcharge. The price we quote on the phone is the price on the invoice. If a competitor gave you a lower written estimate, bring it to us. We’ll review it at no charge and tell you honestly whether it’s comparable or whether they’re lowballing to get a foot in the door. That’s our Free Second Opinion policy.
We Also Serve Cities Near Antioch

Our Lock Installation & Rekey in Antioch service area extends to Oakley, Pittsburg, Brentwood, and Concord. Jobs in those cities get the same written-price rule, the same documented photo record, and the same 365-Day Done Right Promise. If you’re on the edge of Antioch near the Concord border or out toward Brentwood, call (331) 310-8471 and we’ll confirm which crew can reach you fastest.
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 - Lock Installation & Rekey in Antioch

Yes, rekey that home before you move furniture in. New construction in Prewett Ranch changes hands with a builder’s key that may have been copied by contractors, inspectors, and the previous owner’s agent. Even if you received “all the keys,” you can’t account for every copy. A full rekey of a typical Prewett Ranch home runs $75-$270 depending on cylinder count, and we do it same-day or next-day. Call (331) 310-8471 for an exact written quote.
Antioch sits on the inland edge of the Sacramento-San Joaquin Delta, and the prevailing Delta breeze carries sustained moisture into exterior lock cylinders all year. That moisture pits the brass pins and wears the plug, so keys bind and eventually stop turning. Brentwood and Oakley sit further inland and experience drier air, which is why the same Kwikset deadbolt can last years longer there than on a west Antioch bungalow. We replace or rekey corroded cylinders in Antioch regularly, and we’ll show you the damage before we touch it.
In most cases, yes, but it’s a different job than on a modern hollow-core steel door. Older west Antioch bungalows often have mortise locks with a narrow body, and a smart lock needs either a compatible mortise smart unit or a conversion that fits within the existing door prep. We’ll assess the door, tell you whether a Yale or Schlage smart lock will fit cleanly, and give you a written price before any modifications. Some older doors need a wrap plate or a new bore, which we quote upfront.
Yes. A contractor’s key is a copy you can’t track. Any general contractor, plumber, electrician, or cleaner who held a key to your Deer Valley home could have made duplicates. Rekeying changes the pins inside the cylinder so all old keys stop working, without replacing the lock hardware itself. For a typical Deer Valley home with three exterior doors, that’s a one-hour job and runs $75-$200. Call (331) 310-8471 and we’ll have a technician out same day in most cases.
Heat above 100°F makes wooden frames and some composite doors swell, which shifts the strike plate alignment and can stop a smart lock’s bolt from throwing. The motor then strains and reads the bolt as “jammed.” We account for that on every smart lock install in Antioch by checking frame clearance, adjusting the strike plate if needed, and using a lock with sufficient motor torque. Schlage Encode and Yale Assure units have handled Antioch summers well in our field testing, but we always leave a physical key override as backup.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Antioch since 2002.






