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 Coronado
Changing door locks on Coronado means matching hardware to homes that sit in one of the most corrosive salt-air environments in San Diego County, and doing it before a seized cylinder turns into a drilled lock. A standard lock change or rekey in Coronado typically runs $95 – $240 depending on the cylinder type, and we can usually have a uniformed technician at your door within 45 minutes of your call. If you need someone on the island today, call (910) 714-4287 and you’ll speak to a live person, not a voicemail. We dispatch directly to Coronado, so you’re not waiting on a van fighting bridge traffic from the mainland.
Why Dunmore Locksmith Is Coronado’s Preferred Change Door Locks Company
Dunmore comes from old words for a great fort: a stronghold built to keep what is inside safe. That’s the standard we bring to every lock change on this island. We’re part of the Threshold Group, operating since 2007, and every technician we send to Coronado has been background-checked, identity-verified, and photo-badged. Before the van leaves, you get the technician’s name and photo on your phone, so you know exactly who is walking up your driveway before you open the door. If anyone arrives who you weren’t told to expect, that visit is covered at no charge.
Coronado homeowners call us because we respond fast and we don’t guess. Whether you’re in a 1910 Craftsman near Glorietta Boulevard, a condo on Orange Avenue, or a newer build in the Coronado Cays, our Change Door Locks team knows which cylinders fit which door prep, and which brands hold up to the marine air. Perry Osgood leads our crew with a focus on written pricing and work that holds up for years, not months.
Change Lock Cylinder in Coronado
A Change Lock Cylinder on a Coronado home means pulling the old cylinder out of the lock body and swapping in a new one, then rekeying to your existing or new keys. We see this job most often on ocean-facing doors off Ocean Boulevard and in the Cays, where salt and moisture have corroded the pin and tumbler stack so badly that the key binds, sticks, or snaps off in the cylinder. A rekey or cylinder swap like this typically runs $95 – $185 for standard Schlage or Kwikset hardware. If the cylinder is a restricted or patented key system like Medeco, Mul-T-Lock, or Abloy, expect $180 – $340 because you’re paying for key control, not just a new cylinder.
When a Cylinder Swap Beats a Full Lock Change
If the lock body and bolt still throw smoothly but the key turns rough or only works on one side, the cylinder is the failure point. Replacing just the cylinder preserves the door’s original hardware and trim, which matters a lot in Coronado’s historic homes where the lock set may be original to the house. We’ll tell you honestly if the lock body itself is failing and a full replacement makes more sense.
Restricted-Keys and Kiosk Copies
Coronado has a lot of Medeco, Mul-T-Lock, and Abloy cylinders because property managers and second-home owners want key blanks that can’t be copied at a big-box kiosk. If you’ve had a duplicate made and it won’t turn in the lock, that cylinder is a patented or restricted system. We rekey and replace these on Coronado every month, and we’ll issue the new keys directly to you, not to a third party.
Door Lock Installation in Coronado
A Door Lock Installation on a Coronado property means drilling fresh door prep, fitting a new deadbolt or knob set, and sizing everything to the door’s thickness and existing cross-bore. On the island, this job breaks into two very different situations. On newer construction in the Cays or along the Strand, it’s a straightforward install: new Schlage or Kwikset deadbolt above the handle, typically $150 – $275 including hardware and labor. On Coronado’s Victorian and Craftsman homes dating from the 1880s to the 1920s, the original mortise lock set often can’t simply be yanked and replaced with a modern deadbolt without custom work. Expect $240 – $450 for a mortise-to-modern conversion because we fabricate or source the right trim plate and reinforce the jamb so the door stays solid.
Mortise Lock Sets in Coronado’s Historic Homes
Original mortise locks sit in a carved pocket inside the door edge, with a narrow faceplate and ornate brass or bronze trim. A generic technician will drill out the pocket and slap in a universal cylinder, which damages the door and ruins the antique hardware. We take the non-destructive route: we assess the lock body, rekey or rebuild it if the internals are salvageable, and only add a modern deadbolt above the trim when the customer wants stronger security. That preserves the 1900s character and adds today’s protection.
Multi-Point Locks on Tall Doors
Several of the luxury properties around Coronado, especially newer builds and remodels along First Street and the Avenida de las Arenas, have tall entry doors with multi-point locking systems that throw bolts at the top, middle, and bottom of the slab. These locks are great security but they bind hard when salt air builds up in the track. We install, adjust, and service multi-point systems from Baldwin and Sargent, and we match the finish to existing hardware so the install looks factory-original.
Trusted Brands We Service in Coronado
We’re factory-authorized for Schlage, Kwikset, Medeco, and the wider Threshold Standard lineup including Mul-T-Lock, Abloy, Baldwin, Yale, and Sargent. That means we can source the exact cylinder, tailpiece, or trim plate a Coronado home needs without trial and error. Because the salt air on this island kills cheap hardware fast, we stock marine-tolerant finishes and high-security cylinders that hold up better on ocean-facing doors. If you want a key that no one can copy at a kiosk at the base or in downtown San Diego, we install Medeco and Mul-T-Lock systems right here in Coronado with same-week scheduling.
Common Change Door Locks Problems We See in Coronado Homes
- Salt-seized cylinders on ocean-facing doors. The marine layer off the Pacific and San Diego Bay deposits salt and moisture into lock cylinders, especially on the 92118 side. Contacts corrode, pin tumblers freeze, and the key turns hard until one day it snaps off in the lock.
- Original mortise locks that still work but need a real locksmith. Homes built between the 1880s and 1920s along Glorietta Boulevard, Alameda Boulevard, and the historic core still carry original mortise lock sets. They can’t be swapped with a big-box deadbolt, and forcing one ruins the door’s edge and face trim.
- Kiosk-duplicated keys that won’t turn. Several Coronado condos and rental properties run Medeco, Mul-T-Lock, or Abloy cylinders with controlled blanks. A copy made at a kiosk or hardware store won’t even enter the keyway, and by the time the tenant realizes it, they’re locked out or the cylinder needs replacement.
- Vacation-home locks frozen after the winter marine layer. Second-home owners who leave Coronado for months and return to a stuck front door are a constant pattern. The salt and damp settle into the cylinder while the house sits, and the first turn of the key seizes the pins.
Pricing for Change Door Locks in Coronado, CA
Here’s what you can expect to pay for a lock change in Coronado, based on the work we actually see on this island. Rekeying a standard knob or deadbolt: $75 – $130 per cylinder. Changing a single lock cylinder: $95 – $185. Full door lock installation with new hardware: $150 – $275 for standard Schlage or Kwikset, $240 – $450 for mortise conversions or multi-point systems, and $180 – $340 for high-security Medeco, Mul-T-Lock, or Abloy cylinders. The price we quote on the phone is the price on the invoice, full stop. No dispatch fee added when the van shows up, no call-out surcharge, no bait-and-switch. Call (910) 714-4287 and we’ll give you an exact number before we send anyone.
We Also Serve Cities Near Coronado
While this page focuses on Coronado, our crews also serve Coronado‘s neighbors across the bridge and down the Strand, including San Diego, National City, Chula Vista, and Imperial Beach. If your property sits near the island or you manage rentals across the bay, we coordinate scheduling from our San Diego office and dispatch locally to wherever the work is.
Serving Coronado, CA - Our Local Coverage Area
We’re based in the Coronado 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 Coronado
Salt and moisture from the marine layer settle into the cylinder and corrode the pin tumblers, especially on doors facing the ocean or the bay. The grit you feel is corrosion on the pins and springs. A cleaning and re-lubrication can buy time, but if the cylinder has been binding for months, we usually recommend a direct cylinder replacement. Call us at (910) 714-4287 and we’ll tell you after a two-minute look whether it’s cleanable or cooked.
Yes. We are factory-authorized for Medeco, Mul-T-Lock, Abloy, and other restricted key systems, so we can rekey the existing cylinder and issue new controlled keys. You’ll need to show proof you’re the owner or an authorized property manager before we cut new keys, which is part of the key-control system. Rekeys on these run $130 – $220 per cylinder in Coronado.
Yes, and we do it carefully. The original mortise pocket and ornate trim stay intact. We assess the lock body first. If the internals are solid, we rekey or rebuild them and add a new deadbolt above the antique trim with reinforcement hardware, so the old hardware stays on the door and the new deadbolt gives you modern security. If the mortise lock body has failed, we can usually machine a replacement that fits the original pocket without widening the door prep.
It affects every mainland locksmith, and it’s one reason we schedule a Coronado-based van on the island. A San Diego or Chula Vista company has to cross the San Diego-Coronado Bridge or drive the Silver Strand, pay the toll, and sit in bridge approach traffic before they even reach you. That can add 30 to 60 minutes to a lockout. Our Coronado dispatch doesn’t eat that time because the van is already on the island. That’s the difference between a 30-minute response and a 90-minute one when you’re locked out.
Yes. Navy families on 2 to 3 year orders create a predictable turnover cycle in Coronado’s rental stock, and we work with property managers to rekey units on a recurring PCS schedule. We can pre-schedule rekeys for turnover weeks, issue new keys to tenants directly, and provide the written lock-change record landlords need. We also install Medeco or Mul-T-Lock systems for owners who want the keys controlled so tenants can’t duplicate them during the lease. Call (910) 714-4287 and we’ll map your properties and set up a recurring rekey calendar.
If your Coronado locks are worn, seized, or no longer under your key control, call (910) 714-4287 now for a free estimate. You’ll talk to a person, get a written price before anyone is dispatched, and know the name and face of the technician before they knock.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Coronado since 2007.






