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 Martinez
Changing your door locks in Martinez is a decision we see homeowners make for a handful of reasons: new keys after a move, a roommate or tenant situation, lost keys, or hardware that has finally given up against the Carquinez Strait air. The job itself usually takes 30 to 60 minutes per door, and our team reaches most Martinez neighborhoods within the hour. We quote the full price on the phone before anyone is dispatched, so you’ll know the number before our technician parks. Call (910) 714-4287 and we’ll walk you through what your specific door needs.
Why Dunmore Locksmith Is Martinez’s Preferred Change Door Locks Company
We have been answering calls in Martinez since 2007 as part of the Threshold Group family of independent locksmith businesses. Our customers here tend to ask the same thing first: who exactly is coming to the door? Under the Threshold Standard, every technician is background-checked, identity-verified, photo-badged, and sent to you by name and photo before the visit. That means the person who shows up is the person you were told to expect. If someone arrives who you were not told about, that visit is covered at no charge.
Martinez residents have called us for lock changes in neighborhoods across the city, from the historic blocks near Ferry Street and downtown to the hillside tracts on the east side. Reviews from Martinez customers consistently mention the written price and the clean, uniformed technician who showed a badge at the door. For a city with a lot of older doors and a lot of salt in the air, those details matter.
Dunmore comes from old words for a great fort, a stronghold built to keep what is inside safe. That is the standard we work to on every lock change in Martinez.
Door Lock Change in Martinez
Door Lock Change in Martinez almost always means pulling out a tired or compromised cylinder and putting in hardware that will actually hold up to this city’s particular environment. Homeowners call us after a tenant leaves, after keys are lost, or after a worn lock finally stops turning. A standard door lock change on a typical Martinez home runs $120 to $220 for the lock and labor, depending on whether the lock is a knob set, a deadbolt, or both. That is the full price in writing before work starts.
Cylinder Replacement for Salt-Air Damage
Exterior lock cylinders in Martinez pit and seize faster than almost anywhere else in Contra Costa County. The Carquinez Strait pushes marine air through this city even on clear, dry days. We replace the cylinder, lubricate the internal pins, and often fit a marine-grade stainless option so the same problem does not come back in two years.
Hardware Swaps on Older Doors
Some Martinez front doors, especially on Victorians and Craftsman bungalows near downtown, were built around mortise locksets that standard modern deadbolts will not fit without carpentry work. We can swap in a new mortise cassette with a modern keyway, or convert to a surface-mounted deadbolt if the door frame allows. Either way, you’ll get a written quote before any cutting starts.
Lock Change in Martinez
A Lock Change in Martinez is what you need when the entire lockset has failed, not just the cylinder. The bolt hangs, the key grinds, the latch will not retract. Sometimes the salt air has eaten the internal springs. Sometimes a pre-WWII strike plate has wallowed out and the deadbolt misses it entirely. A full lock change on a standard door in Martinez runs $150 to $300 for deadbolt or handle replacement, parts and labor included in the written quote.
Deadbolt Replacement
Deadbolts are the first to fail in strait-side neighborhoods. The throw bolt pits, the keyway corrodes, and suddenly the key only turns with force, or not at all. We fit stainless and marine-grade deadbolts on exterior doors as a standard recommendation in Martinez. It costs a few dollars more and survives years longer.
Mortise Lock Conversion
Homes along Alhambra Avenue and the Ferry Street historic core often still run original Corbin or Yale mortise locks on skeleton-key profiles. Big-box rekey kits will not touch these. We can either fit a new mortise cylinder with a modern keyway or convert the door to a standard deadbolt, keeping the original face plate where possible. The price is confirmed before we remove a single screw.
Trusted Brands We Service in Martinez
We are factory-authorized to install and service hardware from Kwikset, Medeco, Yale, Baldwin, Schlage, Mul-T-Lock, Sargent, and Abloy. In Martinez we stock common Kwikset and Baldwin cylinders locally so most lock changes are done the same day. If your door has a Medeco high-security cylinder or a Yale mortise lock, we can source the exact replacement without a second trip. Perry Osgood, our lead locksmith, has worked on every brand in this list and will tell you honestly what your door actually needs, even if the answer is a less expensive lock.
Common Change Door Locks Problems We See in Martinez Homes
- Seized exterior cylinders from strait air: The Carquinez Strait funnels salt-laden moisture into Martinez year-round. Exterior keyways pit and freeze, and keys start grinding or snap off inside the cylinder.
- Corroded strike plates on pre-WWII doors: Strike plates rust, thin out, and the screw holes wallow. A fresh deadbolt will not hold if the strike is gone, so we replace them in stainless steel.
- Original mortise locksets that reject standard rekey kits: The 1890s to 1930s homes around downtown and along Alhambra Avenue often still have skeleton-key Corbin or Yale mortise locks. Standard pin-and-tumbler cylinders will not fit those pockets without a hardware swap.
- Deadbolt throws that jam mid-way: Salt pitting on the bolt itself catches on the strike edge. The door locks but will not unlock, or unlocks but will not lock. This is a hardware replacement, not a lubrication fix.
Pricing for Change Door Locks in Martinez, CA
A standard door lock change in Martinez runs $120 to $220 on a typical knob set or deadbolt. A full lock change with a marine-grade deadbolt and stainless strike plate runs $150 to $300. Rekeying a standard pin-and-tumbler lock instead of replacing it runs $20 to $40 per cylinder, and that is the cheapest fix if the lock still operates. Higher-security hardware from Medeco or Mul-T-Lock runs higher, and we quote that before ordering. Every quote is delivered in writing before work begins. No call-out surcharge on arrival, no after-the-fact totals. Call (910) 714-4287 and we will confirm the exact number for your door.
We Also Serve Cities Near Martinez
Dunmore Locksmith serves Martinez and the surrounding Contra Costa and Benicia-side communities. If you are in Pleasant Hill, Benicia, Lafayette, or Crockett, our Change Door Locks in Martinez team rides over for the same written pricing and same Threshold Standard technician vetting. Most of these cities are within a 20-minute drive for us. You can read more about our full Change Door Locks service on the main page.
Serving Martinez, CA - Our Local Coverage Area
We’re based in the Martinez 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 Martinez
Yes. We can fit a new mortise cylinder with a modern keyway into the original pocket, or replace the mortise cassette entirely, without enlarging the hole in the door. We keep the original face plate whenever possible. The door survives, the old keys stop working.
Martinez sits directly on the Carquinez Strait, and that is the difference. Marine air with measurable salt content funnels into Martinez even on clear days, where inland cities like Concord do not get it. The salt pits the keyway, corrodes the springs and bolts, and freezes the cylinder. No amount of household lubricant will fix corrosion that has already set.
Marine-grade stainless deadbolts and cylinders from Kwikset, Baldwin, and Yale hold up best, with stainless strike plates and corrosion-resistant internal springs. We recommend those as standard for exterior doors in Martinez. They cost slightly more up front and do not need replacing every few years.
Yes, if the cylinder still turns smoothly. Rekeying runs $20 to $40 per cylinder in Martinez. If the keyway is pitted or the bolt hangs, rekeying will not fix the underlying corrosion, and we will tell you that honestly before taking the job. Call (910) 714-4287 for an honest assessment.
Only as a last resort. We use non-destructive entry methods first, including freeing the cylinder with penetrating lubricants and specialty tools. We drilled a seized Corbin mortise lock on Ferry Street only after freeing it without damage; drilling is not the default. If drilling is required, we will quote it before doing it.
If your locks are giving you trouble or you simply need new keys working today, call Dunmore Locksmith at (910) 714-4287. We will quote the full price over the phone, send a technician by name and photo, and back every lock change with our 365-Day Done Right Promise. The price we quote is the price on the invoice.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Martinez since 2007.