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 North Tustin
Changing door locks in North Tustin typically costs $95 – $240 per lockset depending on hardware grade, and a standard lock swap is usually completed in under an hour once our technician arrives. We schedule calls across North Tustin daily, from homes off Cowan Heights Drive to properties tucked into the Arroyo Avenue foothills, and you’ll always receive a written quote before any work begins. If you need a deadbolt replaced or a full entry re-keyed, call (910) 714-4287 and a live person answers, any hour.
We know what older North Tustin doors do under the Santa Ana winds. That’s the difference between a company that replaces hardware and one that actually fixes why your lock stopped turning in the first place. Perry Osgood built our service on that distinction.
Why Dunmore Locksmith Is North Tustin’s Preferred Change Door Locks Company
We’ve worked on the custom ranch homes and split-levels that define North Tustin‘s foothill neighborhoods since opening as part of the Threshold Group family in 2007. That means our technicians arrive already knowing what they’ll probably find: an original 1970s deadbolt on a door jamb that shifted an eighth of an inch in the last wind cycle. Homeowners here don’t call us for the same cookie-cutter fixes you’d see in a tract subdivision. They call because someone they trust mentioned we diagnosed the problem correctly the first time.
Before a technician rolls up to your street, you get their name and photo sent to your phone. They arrive in a marked uniform, show a photo ID badge at the door, and already have the written scope of work in hand. That’s the Threshold Standard, and it applies to every single job in North Tustin – no exceptions, no surprises about who’s at the door. The full price goes in writing before any hardware is touched, and that written price is what you pay. No dispatch surcharge added when they walk up.
Our Change Door Locks team fields regular calls from the older hillside sections where original doors and frames have settled well out of square. That local familiarity means we carry strike plate extensions, longer screws, and shim materials on the truck, not just a box of new deadbolts. Perry Osgood has drilled it into every tech: in North Tustin, replace the lock only when the lock is actually the problem. And if a repair fails within a year, the 365-Day Done Right Promise puts a second visit at no charge.
Lock Change in North Tustin
A Lock Change in North Tustin usually runs $95 – $180 for a standard Kwikset or Schlage entry knob or deadbolt, and a homeowner typically requests one after losing keys, buying a new property, ending a rental, or discovering that the existing lock has been damaged or picked. On many 1960s – 1980s ranch homes in North Tustin, we first check whether the current lock can be rekeyed – a process that changes the internal pins so your old keys no longer work – because salvaging original matching hardware across a multi-door estate often makes better sense than replacing pieces one at a time.
When Replacement Beats Rekeying
If the cylinder is so worn that the key wobbles, the tailpiece has cracked, or the deadbolt throw seat is visibly hogged out, replacing is the honest call. We also recommend replacement rather than rekeying when you want to upgrade from a standard pin-tumbler cylinder to a high-security bump-resistant format. The new hardware we install is factory-authorized Schlage, Kwikset, Medeco, Yale, or Baldwin.
Multi-Door Ranch Home Lock Changes
North Tustin’s larger lots often mean four to six exterior doors plus a gate. When we do a Lock Change on one, we talk you through keying options: keyed alike, where one key runs every door, or a master-key arrangement that lets you hand a gardener or house sitter a limited-access key. Pricing for a multi-lock project on these larger properties commonly lands between $300 and $700, depending on hardware grade and cylinder count.
Change Lock Cylinder in North Tustin
A Change Lock Cylinder in North Tustin typically costs $60 – $140 per cylinder including labor, and it’s the right fix when the lock’s exterior housing remains sound but the internal cylinder itself has failed, seized, or simply won’t accept a fresh re-key any longer. Homes built between 1960 and 1985 around North Tustin frequently have original Schlage or Kwikset cylinders with obsolete pin formats or worn-down keyways that make a cylinder swap the fastest path back to a working lock.
Signature Cylinder Formats on Older Ranch Homes
What surprises many newer North Tustin homeowners is that their original 1970s hardware often predates today’s universal retrofit kits. A Change Lock Cylinder on these systems calls for matching the tailpiece configuration and cylinder length to the existing mortise cassette or deadbolt housing. We stock those cylinder formats specifically because we see them constantly on the hillside acreages off Newport Boulevard and Cowan Heights Drive.
Cylinder Change vs. Full Lock Replacement
If your key still slides in smoothly but the plug won’t rotate, the cylinder is tired. If the thumb-turn feels gritty or the deadbolt won’t fully extend, the cylinder may need changing, but so might the strike alignment. Perry Osgood tells our customers plainly: a cylinder swap is a lower-cost repair, and we’ll never pad it into a full lock replacement if that’s not warranted. You’ll see the actual condition of your hardware before you approve the work.
Trusted Brands We Service in North Tustin
We carry factory-authorized parts for Schlage, Kwikset, Medeco, Yale, and Baldwin, which covers nearly every original lockset we encounter across North Tustin’s custom home stock. What that means for you: when we diagnose a failing tailpiece or a worn cylinder on a 1972 Kwikset, we often have the matching replacement part on the truck rather than ordering and returning a second day. For higher-end North Tustin properties running Medeco or Baldwin hardware, we service what you have rather than talking you into a downgrade just because it’s on the shelf. The right part, same day, in writing before we start.
Common Change Door Locks Problems We See in North Tustin Homes
- Deadbolt throw-binding every Santa Ana season. The October-November winds that barrel through the Santiago Hills canyons rack original wood door jambs hard enough that your deadbolt won’t throw or retract cleanly. Most of these calls resolve with strike plate repositioning or jamb shimming, not new hardware.
- Original mortise locks on pre-1985 entries swapped for modern bored hardware that won’t seat. A modern cylindrical deadbolt cannot simply drop into a door machined for an old mortise cassette, especially once the slab has warped on a hillside foundation. We fix the frame first, then spec the right lock for the door edge you actually have.
- Obsolete cylinders on 1960s-70s Schlage and Kwikset kits. These older pin formats often can’t be rekeyed with the pins we carry today. A Change Lock Cylinder commonly restores full function at roughly a third the cost of replacing the entire lockset, and it preserves the visual match across multiple doors.
- Wrought-iron pedestrian gates and detached garages that won’t key alike. Estate-sized North Tustin properties frequently have secondary structures that were keyed independently over the decades. We build keyed-alike systems so one key runs the house, gate, and garage – a scale of master-key work you rarely see in denser Orange County neighborhoods.
Pricing for Change Door Locks in North Tustin, CA
A standard single deadbolt or knob lock change in North Tustin runs $95 – $180 in labor and hardware. A lick cylinder change runs $60 – $140 per cylinder. If you need a full entry set swapped on a custom front door, budget $180 – $280. High-security cylinders or Medeco upgrades push toward the top of these ranges, and multi-door estate projects commonly total $300 – $700 when we rekey the whole perimeter and gate system to one key. The write-up always comes to you before work starts, and that’s the figure on your invoice. Call (910) 714-4287 for a free estimate tailored to your home.
We Also Serve Cities Near North Tustin
While this page focuses on North Tustin, our technicians also cover Los Angeles, San Diego, San Jose, and San Francisco for larger Threshold Group members. If your property sits near the North Tustin foothills but in an adjacent Orange County community, call us at (910) 714-4287 and we’ll confirm scheduling for your location directly.
Serving North Tustin, CA - Our Local Coverage Area
We’re based in the North Tustin 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 North Tustin
Probably not. In North Tustin’s 1960s-1980s hillside homes, the Santa Ana winds flex original wood door frames, and the deadbolt binds because the strike plate has drifted out of alignment, not because the lock has failed. We test the lock in hand to confirm, then reposition the strike and shim the jamb where needed. If the cylinder itself is worn, a Change Lock Cylinder typically solves it for $60 – $140. Call (910) 714-4287 for a diagnosis before buying hardware.
Yes, in most cases. Original pin-tumbler Schlage and Kwikset hardware from the 1970s and 1980s rekeys cleanly, and we can typically complete a re-key on multiple doors in under two hours. The exception is the occasional obsolete pin format that predates today’s standard kits – those units often need a cylinder change instead. Either way, we’ll show you the cylinder before recommending which route saves you money. Call (910) 714-4287 for an exact quote.
It does. North Tustin falls under Orange County Public Works rather than a municipal building department, which means permitting for new electronic-access installations and gate operators goes through the County, not the City of Tustin. We handle that paperwork for you and schedule the required inspections. Most North Tustin homeowners are caught off guard by this, and we walk you through it from the first phone call. Call (910) 714-4287 to confirm your project’s scope.
Yes. On North Tustin’s estate-size properties, we regularly build keyed-alike systems where a single key operates the front entry, the pedestrian gate, and the detached garage. For gates with original or replacement cylinders, this often means a Change Lock Cylinder on a couple of units plus a re-key on the rest, typically $180 – $350 total depending on how many cylinders are involved. The full written quote comes before any work starts. Call (910) 714-4287 to schedule.
Yes. What we don’t do is rip out a working mortise lock and carve the door for a modern bored deadbolt if it can be avoided – on warped or settled doors, that conversion often leaves a binding, sloppy install. We service mortise cassettes, match replacement cylinders, and rebuild the internal mechanisms where possible. When replacement is genuinely the better call, we source a proper mortise replacement rather than forcing round hardware into a rectangular pocket. Call (910) 714-4287 for an honest assessment.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving North Tustin and surrounding Orange County communities since 2007.






