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 Santa Ana
Changing door locks in Santa Ana usually costs between $95 and $260 for a standard Santa Ana Door Lock Repair or lock change on one door, and most jobs are completed the same day we get the call. Whether you’re a renter in a 1960s apartment building off Bristol Street or a homeowner in a Floral Park bungalow, getting a new lock installed correctly matters more than the hardware itself. We know Santa Ana’s doors, frames, and rental quirks, and we send a named, background-checked technician to your door ready to do the job right the first time. Call (910) 714-4287 and you’ll speak to a live person, any hour of the day or night.
Why Dunmore Locksmith Is Santa Ana’s Preferred Change Door Locks Company
Santa Ana’s Residential Locksmith - Santa Ana calls are different from what you’d see in Irvine or Costa Mesa, and the work reflects that. We have spent years working on the city’s dense apartment corridors, older tract homes, and the pre-war bungalows around Floral Park and French Court. Our customers here tell us the same thing: they want to know who is arriving before they open the door. So we send a photo and a name before dispatch. The technician shows up in a marked uniform, carries a photo ID badge, and hands you a written price before any work starts. No surprises, no vague totals after the fact.
Dunmore Locksmith is part of The Threshold Group, a network of independent local locksmith businesses operating since 2007. The name Dunmore comes from old words for a great fort, a stronghold built to keep what is inside safe. That’s the standard Perry Osgood holds when he dispatches a technician to Santa Ana. Every repair is covered by the 365-Day Done Right Promise: a written guarantee is included on every job, and if the repair fails within a year, we return at no charge. Perry Osgood and the team have built this business around one question: would you open your door to someone you haven’t been told to expect? With us, you always know.
Our response time to most Santa Ana neighborhoods is under 60 minutes for emergency calls. We serve the entire city, from the apartment complexes along First Street and Main to the single-family streets near Santiago Park and the Santa Ana Zoo. When a renter near Civic Center needs a lock changed on a Saturday evening or a landlord in Heninger Park needs three units rekeyed before Monday showings, we’re already on it.
Door Lock Change in Santa Ana
Door Lock Change means removing the existing lock hardware and installing a new locking mechanism, whether a knob lock, deadbolt, or full handle set. In Santa Ana, this job is most common during move-ins and move-outs, after a break-in or attempted break-in, or when an older lock simply stops holding. Because so much of Santa Ana’s housing stock dates from the 1940s through the 1970s, many of these doors still carry original builder-grade Kwikset knob locks without a deadbolt. Swapping one out is straightforward for us, but you should expect the frame to need attention too.
New Lock, Old Frame
Many Santa Ana door frames have decades of seasonal movement behind them. The Santa Ana winds, those dry offshore gusts this region is named for, pull moisture out of wooden frames and cause them to shrink. When a new lock is installed on a door that no longer meets the strike plate cleanly, the lock won’t latch and the door won’t secure. We fix that as part of the job, not as a separate surprise charge. A standard door lock change in Santa Ana typically runs $95 to $180, including the lock hardware installation and strike alignment.
Non-Destructive Opening Before the Change
If you’re locked out and the lock needs to be changed anyway, we open the door without drilling whenever possible. Drilling a cylinder destroys the lock and can damage the door itself, and in a rental, that door belongs to the freeholder. In Santa Ana, where renters make up the majority of households, damaging a door can cost a tenant their deposit or create a dispute with the landlord. Our Change Door Locks team brings the tools to open most residential locks without damage, then installs the replacement cleanly.
Lock Change in Santa Ana
Lock Change in Santa Ana frequently means something different than a simple hardware swap. Because this city has one of the highest renter concentrations in Orange County, tenant turnover is constant. A landlord rarely needs just one lock changed. They need key control restored. The problem: many older apartment buildings along Bristol and First Streets have master key systems that have gone unmanaged for years. Key copies are circulating that no one has tracked. Changing one unit’s lock cylinder without addressing the master key situation leaves those old keys still working.
Key Control Is the Real Issue
When we get a call from a Santa Ana landlord asking for a “one unit rekey,” we often find the building is running on a kwikset knob lock keyed into a master system that hasn’t been documented in years. The tenant returns one key, but nobody knows how many copies were made. We’ll rekey the cylinder so old keys stop working, then walk the landlord through exactly which keys still operate the door and recommend whether a master rekey across multiple units is the safer play. A standard lock change or rekey on one door in Santa Ana runs $85 to $160, and a whole-building master rekey is priced by door count.
Adding a Deadbolt to an Older Door
Most Santa Ana homes built before 1980 have knob locks only. Upgrading to a Schlage B60N deadbolt or similar gives a real improvement in resistance to forced entry. But it will likely reveal that the strike plate needs resetting, because the older frame has moved over the decades. We include strike adjustment when we install a deadbolt, and we do not leave a job with a door that won’t latch. A lock change that includes adding a deadbolt typically runs $140 to $260 in Santa Ana.
Trusted Brands We Service in Santa Ana
We carry and service the brands Santa Ana homeowners and landlords actually ask for: Schlage, Kwikset, Medeco, and Yale. If you want Medeco service in Santa Ana on a duplex off Orange Avenue or a Schlage deadbolt on a condo in downtown, we stock those parts locally and can usually complete the job in one visit. Factory-authorized work on Schlage, Medeco, and Kwikset means the warranty stands up and the hardware fits. We do not push one brand over another. We match the lock to the door, the frame, and the level of key control you actually need. For a landlord managing multiple units along Bristol Street, that often means a master-keyed Medeco system. For a renter in a 1970s apartment, a Schlage deadbolt is the more sensible move. We’ll tell you the difference in plain terms and put the price in writing before we begin.
Common Change Door Locks Problems We See in Santa Ana Homes
- Old master key systems with untracked copies. A landlord hands back one key and thinks the unit is secure. But if the building has a shared master key pattern, four or five unreturned copies may still open that door. We document the key count and rekey to eliminate the unknown copies.
- Knob locks without deadbolts from the 1940s through 1970s. Most original Santa Ana homes were built with a single knob lock and nothing else. That’s a weak point on a street-facing door. Upgrading to a deadbolt is common, and we check the strike alignment so the new deadbolt actually throws fully.
- Wind-driven frame movement causing latch failure. The Santa Ana winds dry out wooden frames seasonally, and doors that latched in the spring stop latching in the fall. The strike plate moves, or the door sags. We reset the strike, reinforce it with longer screws, and the lock functions again.
- Damaged doors from drilled lockouts. We see doors in Santa Ana apartments where a previous locksmith drilled the cylinder during a lockout and walked away. The door now needs repair plus a new lock. We open most doors without drilling, and if a lock must be drilled, we replace it cleanly and tell you why the drill was necessary.
Pricing for Change Door Locks in Santa Ana, CA
Here are the honest numbers for the Santa Ana market. A standard lock change on one door runs $95 to $180. Rekeying a single knob lock runs $75 to $120. Adding a deadbolt where none exists runs $140 to $260. Rekeying an entire apartment building with a master key system is priced by door count and cylinder type; we quote that in writing before any work begins. The price you get on the phone is the price on your invoice. No call-out surcharge added on arrival, no bait pricing. The full price goes in writing before the technician touches your door. If the number changes, you approve the change in writing before we proceed. Call (910) 714-4287 for a free estimate specific to your Santa Ana address.
We Also Serve Cities Near Santa Ana
Beyond our work across Santa Ana, our technicians regularly serve Tustin, Orange, Garden Grove, and Villa Park. If you manage rental properties across multiple Orange County cities, one call to (910) 714-4287 covers the whole map. Same live-person scheduling, same written pricing, same 365-day guarantee on every job, whether we’re in a Santa Ana apartment complex or a Garden Grove tract home.
Serving Santa Ana, CA - Our Local Coverage Area
We’re based in the Santa Ana 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 Santa Ana
Most emergency lock changes in Santa Ana are reached within 60 minutes. If you’re near downtown, Civic Center, or Floral Park, we’re often there even faster. For non-emergency work, we schedule same-day or next-day appointments at a time that works for you. Call (910) 714-4287 and the dispatcher will give you an arrival window before you hang up.
We cover all of Santa Ana, including Floral Park, French Court, Heninger Park, Santiago Park, downtown, the Civic Center area, and the apartment corridors along Bristol, First, and Main Streets. If you’re in a zip code starting with 92701, 92703, 92704, 92705, 92706, or 92707, you’re in our service area. Our technicians know the building types in each part of the city.
Yes. Our phones are answered by a live person 24 hours a day, 7 days a week, 365 days a year. If you’re locked out at 2 a.m. in an apartment near Orange Avenue, you’ll talk to a real human who dispatches a technician to you. Emergency rates apply outside normal business hours, and you’ll hear the full price on the phone before anyone is sent.
Probably not. In Santa Ana, the more likely cause is the frame. The Santa Ana winds dry out older wooden door frames and cause them to shrink or shift, which throws the strike plate out of alignment. The lock itself may be fine. We’ll reset the strike, reinforce it with longer screws, and the door will latch solidly. If the lock is genuinely defective we’ll tell you, but most “won’t latch” calls here are frame issues. Call (910) 714-4287 and we’ll diagnose it over the phone first.
Yes, and we do it often here. The majority of Santa Ana homes built before 1980 have knob locks without deadbolts. We install Schlage B60N deadbolts most frequently on those doors, because they fit the existing bore pattern and hold up well. The job includes strike plate reinforcement and frame alignment, so the deadbolt throws fully and the door closes without resistance. Your landed cost includes all of that, in writing, before we start. Call (910) 714-4287 for a quote.
Why a Santa Ana Lock Change Is Never Just a Hardware Swap
Santa Ana has one of the highest renter concentrations in all of Orange County. Most residents rent. Tenant turnover is constant. And property crime rates here run significantly higher than in surrounding suburbs like Irvine or Mission Viejo. That combination means a “change the locks” call in Santa Ana is usually about key control, not hardware. A landlord with a 1960s building off First Street isn’t buying a new lock because the old one broke. They’re trying to get back to a place where they know exactly who has a working key. It’s a harder problem than swapping hardware, and it’s the problem this page exists to solve.
The winds make it harder. The Santa Ana winds, the dry offshore gusts this city is named for, pull moisture out of older wooden door frames and cause them to shrink seasonally. A new lock that doesn’t latch is often a frame problem, not a bad cylinder. If a technician changes a lock but doesn’t check the strike and frame alignment, you’ll be calling again in a month. We check it every time.
We took a call from a property manager on First Street, where a 1960s apartment building still ran on its original builder-grade Kwikset knob locks with no deadbolts and a pile of untracked tenant keys. We rekeyed the unit’s lock cylinder and added a Schlage B60N deadbolt. Then we found the door wouldn’t latch because the Santa Ana winds had shrunk the frame and thrown the strike out of alignment. We reset the strike, upgraded to a reinforced plate, and left the manager with a documented key count for the building. That’s what a complete lock change looks like in Santa Ana. It’s rarely a quick cylinder swap. It’s key control, hardware, and frame work handled as one job.
Non-destructive entry matters here too. In a renter-heavy city, the door you’re standing in front of belongs to someone else. A drilled cylinder means a damaged door, and that’s a repair the tenant or landlord has to cover. We open most residential doors without drilling. When drilling is unavoidable, we say so before we do it and replace the lock cleanly.
If you’re in Santa Ana and need a Change Door Locks in Santa Ana professional who sends you a name and photo before arrival, puts the price in writing before work starts, and backs the job for 365 days, call (910) 714-4287. Speak to a live person. Get a real answer. Then open the door knowing exactly who’s standing there.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Santa Ana since 2007.






