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 San Martin
Changing door locks in San Martin usually means rekeying or replacing hardware across several structures at once, not just one front door. A standard single-lock change on a ranch home runs $95 – $185, but most San Martin visits involve five to ten locksets because barns, tack rooms, and detached garages almost always need attention in the same trip. We send a named, photo-badged technician to your property, quote the full price in writing before any work starts, and back every job with a written 365-day guarantee. Call (910) 714-4287 and a live person answers, day or night.
San Martin is different from Morgan Hill or Gilroy in one way that changes everything about lock work: land. Your property likely has outbuildings the prior owner keyed separately, sometimes with keys that were never returned by ranch hands, boarders, or tenants. That changes the job from a quick lock swap into a full key-control reset. We plan for that from the first phone call.
Why Dunmore Locksmith Is San Martin’s Preferred Change Door Locks Company
We’ve done enough work on Llagas Road, Fitzgerald Avenue, and the ranches east of San Martin Avenue to know that no two properties here key the same way. One house off New Avenue had four separate keyways: the main door, the back kitchen door, a workshop, and a wine cellar. Our technician sorted all four in under three hours and the owner now carries one key. That’s the kind of thing you only learn by working this specific terrain, not by dispatching from a storefront 20 minutes away.
Dunmore Locksmith operates as part of Threshold Group, which has served customers under the same standard since 2007. That standard is simple: background-checked, identity-verified technicians sent to you by name and photo before the visit. They arrive in a marked uniform, show a photo ID badge at the door, and never begin work until you’ve confirmed who they are. If someone shows up who we didn’t tell you to expect, that visit costs you nothing.
Response time to most San Martin addresses is under 45 minutes during normal hours, with 24/7 live-answer phone coverage for real lockouts. Every repair carries the 365-Day Done Right Promise: if it fails within a year, we return at no charge. That’s written on the invoice, not said over the phone.
Door Lock Change in San Martin
Door Lock Change on a San Martin property is rarely a one-lock job. Because most homes here sit on 2- to 20-acre parcels with multiple outbuildings, we treat a lock change as a key-control reset across the whole property, not a single-cylinder swap. A front door lock change typically runs $95 – $185 including the new hardware and labor. Adding a barn, tack room, or detached garage to the same visit usually brings the total to $250 – $600 depending on hardware grade and cylinder count.
When a Ranch Property Needs It
Buying a San Martin property is the number-one trigger. The prior owner may have given keys to a ranch manager, a stable hand, a neighbor, or a wine delivery service, and none of those people ever signed anything. There’s no way to know how many copies exist. We rekey every exterior lock in one visit, cross-key outbuildings so your house key opens the barn and workshop if you want it to, and leave you with a clear list of which keys operate which doors.
Hardware We Replace
Many San Martin outbuildings still have builder-grade cylinders that seize when the wooden door swells or warps after a few summers above 95°F. We replace those with ANSI-rated Schlage or Kwikset hardware that holds alignment better when the frame moves. Deadbolts get a heavy-duty strike plate screwed into the jamb, not just the trim, because a deadbolt in a barn door is only as strong as the wood behind it.
Lock Change in San Martin
Lock Change in San Martin means swapping the entire lockset, either because the old one has seized, the finish is worn, or you want a better grade of hardware on a door that matters. A basic knob-lock change starts around $85 – $145. Replacing a deadbolt with a keyed entry set on a front door runs $120 – $210. On outbuildings with warped frames, the labor can run higher because we true the strike alignment rather than forcing a lock into a door that fights back.
Non-Destructive Entry and Replacement
When a lock on a barn, tack room, or detached garage has seized completely, we don’t drill unless there’s no other option. Drilling a lock on a door you don’t own seldom makes sense anyway, since the cylinder usually comes out cleanly with the right picks and a little patience. Non-destructive entry is faster, quieter, and leaves the door intact. We drilled exactly zero locks on our last dozen San Martin outbuilding jobs.
Multi-Structure Keying Plans
The real value in a San Martin Lock Change is the keying plan. We can set a master key to open every structure while barn-help keys stay restricted to specific outbuildings. A wine cellar door gets its own key. The detached garage can take a different key than the equipment shed. That’s not possible with one-size-fits-all rekeying, and it’s the main reason we think through the whole property before touching the first cylinder.
Trusted Brands We Service in San Martin
We stock Schlage and Kwikset cylinders, deadbolts, and keyed entry sets in our service vehicles because those brands cover the majority of San Martin ranch hardware. For higher-security applications, we’re factory-authorized to install and service Medeco and Yale as well. That matters on a property where the wine cellar holds more than the front door. We carry common replacement parts for these lines so a same-day fix doesn’t turn into a “wait for the part” phone call. If your existing hardware isn’t worth saving, we’ll tell you that before quoting, not after opening it up.
Common Change Door Locks Problems We See in San Martin Homes
- Builder-grade cylinders seizing after summer heat. South Santa Clara County regularly hits 95°F, and that heat warps wooden barn and gate doors enough to rack a cheap deadbolt out of alignment. We replace these with ANSI-rated hardware before the next lockout happens.
- Prior owner’s keys still circulating. Ranch properties change hands with boarders, stable hands, and delivery services who all had a key at some point. Rekeying the front door alone leaves the barn and tack room wide open to anyone still holding an old copy.
- Separate keys for every outbuilding. We routinely find properties where the house, barn, workshop, and detached garage each take a different key, and nobody remembers which one opens what. A master key system or cross-keying plan fixes that in one afternoon.
- Restricted keys copied at the hardware store. Multi-tenant gates and hangar entries in San Martin sometimes use restricted keyways, but a previous owner may have had a duplicate made at a place that ignored the restriction. That single copy voids key control for everyone who shares the entry. Rekeying the cylinder re-establishes control.
Pricing for Change Door Locks in San Martin, CA
Here are real numbers for San Martin’s market, not “starting at” bait. A single knob or deadbolt lock change runs $85 – $185. Rekeying a standard Schlage or Kwikset pin-and-tumbler cylinder runs $35 – $75 per lock, and most San Martin visits involve five to ten locksets, putting the typical bill between $250 and $600. Hardware grade moves the number: basic residential hardware sits at the low end, while keyed entry sets and high-security cylinders from Medeco or Yale push toward the top. The price we quote on the phone is the price on the invoice, written before any work begins. No dispatch fee added on arrival, no after-the-fact totals. Call (910) 714-4287 for a free estimate, and ask us to walk the property on FaceTime if you want a firmer number before we drive out.
We Also Serve Cities Near San Martin
We cover San Martin and the surrounding South County communities, including Morgan Hill, Gilroy, Los Gatos, and Campbell. If you’re in San Martin and your call rolls to our Metro Bay Area dispatch office, you’ll still get a local technician who knows the ranch roads and gate setups here. For the full breakdown of our Change Door Locks services across the region, start there.
Serving San Martin, CA - Our Local Coverage Area
We’re based in the San Martin 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 San Martin
Yes, in most cases. If the cylinder still turns with the key, we can rekey it even when the door itself has shifted. The real question is whether the lock will stay aligned through the next hot summer, and that’s where we’ll recommend a heavier strike plate or a small realignment of the jamb rather than a full replacement. Call (910) 714-4287 for an exact assessment; we’ll tell you what’s salvageable before quoting anything.
Every exterior door key the previous owner ever distributed should be rekeyed in one visit: the house, barn, tack room, detached garage, and any gate locks. The outbuildings matter just as much as the house because a stolen saddle or a cleaned-out workshop is just as real a loss. We can cross-key everything so one key opens the house and outbuildings, or set up a master key with restricted barn-help keys if you have employees or boarders. Call (910) 714-4287 and we’ll walk you through the plan before anyone arrives.
We pick the lock open non-destructively rather than drilling, which keeps the freeholder’s door and frame untouched. Once the resident is inside, we rekey the cylinder so the previous key, or any unauthorized copy, no longer works. If the property manager requires a restricted key system, we can supply that on the same visit. Call (910) 714-4287 and a live person will dispatch a technician who can handle the entry and the rekey in one trip.
Restricted-key entries require a registered locksmith who can order and cut cylinders from the manufacturer’s key-control system. We rekey the cylinder to a new, unused key combination and return the property to full key control, meaning nobody can get a duplicate cut without the property owner’s written authorization. That’s the whole point of a restricted system. If someone already copied a key against the restriction, rekeying kills that copy’s usefulness. Call (910) 714-4287 for a written quote and a same-day appointment.
Yes. We regularly handle hangar locks, keypad entries, and gate-access hardware at San Martin Airport (E16), including weekend morning lockouts before early flights. Hangar hardware usually needs a keypad re-pin or a cylinder rekey rather than a full door replacement, and we can usually do that within two hours of the call. If the keypad itself has failed, we can source a compatible replacement and install it the same week. Call (910) 714-4287 and tell the live person you need hangar access; we’ll send someone who knows the airport’s gate layout.
Call Dunmore Locksmith for Change Door Locks in San Martin
Perry Osgood leads our San Martin service area, and the standard he set is the one every technician carries: background-checked, photo-badged, sent to you by name before arrival, with a written price before any work begins. If a repair fails within 365 days, we come back at no charge. That’s not a slogan. It’s printed on the invoice.
The name Dunmore comes from old words for a great fort, a stronghold built to keep what’s inside safe. That’s the job. Whether you’re rekeying a ranch off Llagas Road, restoring key control on a shared gate, or locked out of a hangar before a Saturday flight, call (910) 714-4287. A live person answers, any hour, and the price you’re quoted is the price you’ll pay.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving San Martin and southern Santa Clara County with verified, background-checked lock change and rekeying service.






