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 Change Door Locks Across Antioch
If you need to change door locks in Antioch, expect to pay roughly $95 to $260 for a standard knob-and-deadbolt swap, depending on hardware grade, and most jobs finish the same day. We run crews into Antioch from the Bay Area dispatch office, and a uniformed tech is usually at your door within 60 to 90 minutes of your call. Perry Osgood heads our Antioch work, and every tech arrives with a photo ID badge shown at the door before you open it – you’ll know the name and face before the visit, not after.
Call (910) 714-4287 for a written quote before anyone is dispatched. The price on the phone is the price on the invoice.
Why Dunmore Locksmith Is Antioch’s Preferred Change Door Locks Company
Antioch’s housing stock has a very specific problem, and we’ve spent years seeing it up close. Thousands of homes along the Lone Tree corridor and the eastern neighborhoods went up in the 1990s and 2000s with builder-grade Kwikset knob-and-deadbolt sets. Those locks are now 20 to 30 years old, and Delta humidity has been eating the zinc-alloy cylinders the whole time. We know which houses on which streets have the worst of it because we’ve changed the locks on enough of them. That block-level familiarity is not something a generalist locksmith rolling in from elsewhere can match.
When we say our Antioch customers trust us, we mean they call back when the next rental turns over or the next deadbolt seizes. The 365-Day Done Right Promise is written on every job: if the work fails, we return at no charge. Every tech who steps onto an Antioch porch is background-checked, identity-verified, and sent to you by name and photo before the visit under the Threshold Standard. You don’t guess who’s coming. You see them first.
And the phone never goes to voicemail. A live person answers 24 hours a day, every day. When a deadbolt jams at nine at night off Somersville Road, you reach a human being, not an answering service.
Door Lock Installation in Antioch
Door Lock Installation in Antioch means more than swapping out an old knob. On the city’s 1990s and 2000s tract homes, it usually means removing corroded builder-grade hardware, checking the strike plate and hinge alignment, and fitting something that can handle Antioch’s specific climate. A standard installation runs roughly $95 to $180 for labor plus hardware, and a Grade 1 deadbolt with a stainless strike plate adds another $60 to $120 on top. We stock Schlage, Kwikset, Yale, and Medeco hardware on the truck so the job finishes in one visit.
New Installations and Upgrades
On new door prep or bare slabs, we cut and fit the cross-bore and latch-bore, then hang the hardware square so the bolt seats cleanly on the first throw. If you’re moving into one of those same-spec stucco homes near Deer Valley and the old Kwikset is sagging, we can upgrade the whole entry to an ANSI Grade 1 deadbolt. The old Grade 3 sets were never built for two decades of Delta air. The hardware choice matters more here than in drier cities east of us.
Replacing Worn or Damaged Locks
When a key snaps inside the cylinder or the thumb-turn spins without throwing the bolt, the lock is done. We’ve pulled plenty of those off Antioch doors. On a 1999 home off Lone Tree Way recently, the zinc-alloy cylinder had corroded so badly the key only turned halfway. We replaced the whole knob-and-deadbolt set with an ANSI Grade 1 Schlage deadbolt, fitted a stainless strike plate, and the door has thrown clean ever since. That’s the typical fix: replacement, not repair, because the builder hardware was never meant to last this long.
Patio Door Lock Change in Antioch
Patio Door Lock Change in Antioch is one of our most frequent calls, and it’s usually about a sliding glass door that no longer latches or a surface-mounted lock that has corroded past the point of turning. Most Antioch homes built in the last 25 years have an aluminum-framed sliding door to the backyard, and the factory locks on those fail quietly. A typical patio door lock replacement runs $110 to $220, which includes the new lock body and the alignment work so the door actually locks when you pull it shut.
Sliding Door Locks
The stock sliding-door locks on Antioch tract homes are thin pot-metal, and Delta humidity attacks the internal springs. What starts as a stiff turn becomes a thumb-latch that won’t throw. We replace those with heavy-duty surface locks or mortise-style patio locks that engage the frame rail cleanly. If the door is off its rollers, we’ll tell you before we touch the lock because a misaligned door will kill a new lock the same way it killed the old one.
Patio Door Security Upgrades
Sliding doors are the weak point in most Antioch homes, and a good lock is half the fix. We can add an auxiliary foot lock, a secondary pin lock, or a keyed patio bolt. For homeowners who want one key for everything, we rekey the patio lock to the same pin sequence as the front entry while we’re out. One key, whole house, done in the same visit.
Trusted Brands We Service in Antioch
We install and service Schlage, Kwikset, Yale, and Medeco hardware, and we carry the common cylinders and deadbolt bodies on the truck when we run calls into Antioch. If you have a Baldwin or a Sargent, we can order and fit that too. For the moisture and heat we get here, we point Antioch homeowners toward Schlage’s stainless steel and marine-grade options, along with Medeco for higher-security needs. The right hardware lasts. The wrong hardware seizes in two seasons of Delta air.
Common Change Door Locks Problems We See in Antioch Homes
- Seized cylinders from Delta humidity. The fall and spring moisture in Antioch settles into zinc-alloy lock cylinders and corrodes the pin chambers from the inside, so keys bind and eventually snap. This is the single most common failure we see on 1990s and 2000s builder-grade Kwikset sets.
- Deadbolts that drag in summer. Antioch regularly passes 100°F, and the stucco-frame door jambs expand enough to pull the strike plate out of line. The bolt drags or won’t seat, even if the lock itself is fine. A stainless strike plate and a properly set jamb solves it.
- Tenant turnover on rental corridors. Landlords along Lone Tree Way and Somersville Road rekey or replace locks on nearly every vacancy. We run multi-unit rekey packages on a schedule for several Antioch property managers, and those cycles are steady, high-volume work here in a way quieter neighboring cities never see.
- Old mortise locks on pre-1960s homes. The older bungalows and craftsman-style houses near downtown Antioch often have non-standard keyways or mortise lock bodies that are no longer made. Replacement means fitting a modern mortise cassette or retrofitting a fresh bore to fit current deadbolts, which is not a parts-store fix.
Pricing for Change Door Locks in Antioch, CA
Here are honest ranges for Antioch, not teaser numbers. A standard knob or lever lock swap runs $95 to $150 in labor, plus $30 to $90 for the hardware. A deadbolt-only change is $85 to $140, and a full knob-and-deadbolt set replacement lands between $130 and $260 all-in with a mid-grade Schlage or Kwikset. Patio door locks run $110 to $220. A full-home rekey after a key loss or tenant turnover runs $65 to $165 depending on lock count. You get the full written quote on the phone before we dispatch, and there is no call-out surcharge added when the tech arrives. Call (910) 714-4287 for an exact number for your door.
We Also Serve Cities Near Antioch
Antioch is the center of our East Contra Costa coverage, and our Change Door Locks crews run the same day into Oakley, Pittsburg, Clayton, and Brentwood when you need us there. Same written pricing. Same background-checked techs by name and photo. Same 365-day guarantee.
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 About Change Door Locks in Antioch
Because the homes along the Lone Tree corridor were built in the same 1990s and 2000s boom window with the same Grade 3 builder-grade Kwikset hardware, and twenty-plus years of Delta-influenced fall and spring humidity has corroded the zinc-alloy cylinders across entire blocks at once. When we change one lock in that area, the neighbors are usually next. Call (910) 714-4287 and we’ll tell you over the phone what your door likely needs.
In Antioch it is usually the door frame, not the lock. Heat past 100°F expands the stucco-frame jamb and throws the strike plate out of alignment, so the bolt drags. We check the alignment during any lock change and fit a stainless strike plate where the swelling is repeat. The fix is structural, and we price it in before we start.
If the hardware is the original 1990s or 2000s builder set, replace it. Rekeying a corroded cylinder buys you a few months. If the hardware is newer and operating cleanly, rekeying is enough and costs $65 to $165 for a typical set. We’ll check the condition and give you a straight answer before any work happens. Call (910) 714-4287 for a quote.
Yes. We replace sliding-glass-door locks, add secondary patio bolts, and rekey patio locks to match your front entry so one key covers the house. A typical patio door lock change in Antioch runs $110 to $220, written and quoted before we dispatch.
We recommend an ANSI Grade 1 Schlage deadbolt with a hardened bolt and a stainless steel strike plate, plus a rekey or replacement of every other exterior lock to cut off copied keys. On high-risk properties we fit Medeco cylinders. We’ll assess the entry, tell you what failed, and quote the upgrade on the phone before anyone drives out.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Antioch since 2007 as part of the Threshold Group family.