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 South Miami
Changing door locks in South Miami typically costs $85 – $240 for a standard deadbolt or knob swap, and $40 – $95 to change just the lock cylinder, with most jobs finished within an hour of arrival. If you’ve just moved into a mid-century ranch off Sunset Drive, changed housekeepers, ended a relationship, or realized an old key is floating around somewhere you can’t account for, rekeying or lock replacement closes the gap fast. Dunmore Locksmith, your trusted Residential Locksmith in South Miami, sends a named, photo-badged technician to streets like the ones around Dante Fascell Park, ready with the hardware to make your doors work the same day. Call (910) 714-4287 and you’ll get a live person, a written price before any work begins, and a 365-day guarantee in writing.
Why Dunmore Locksmith Is South Miami’s Preferred Change Door Locks Company
South Miami homeowners call us back because we treat a lock change as a security decision, not a parts swap. The houses here, mostly 1940s – 1960s CBS ranches with impact-door retrofits added after Hurricane Andrew, don’t accept average hardware without some finesse. Our technicians know what happens when a concrete block wall settles even a quarter inch: the keep plates on a multipoint lock shift, the bolts miss, and the door that looks locked isn’t. We carry shims, strike plates, and cylinder options matched to the mixed-vintage hardware scattered across this small city.
We’re part of the Threshold Group, serving customers since 2007, and every tech operates under the Threshold Standard: background-checked, identity-verified, uniformed, carrying a photo ID badge, and sent to you by name and photo before the visit. When the person at your door matches the photo on your phone, you open it with confidence. If someone shows up you weren’t told to expect, that visit is covered at no charge. That’s a written policy, not a promise.
Perry Osgood, the owner of Dunmore Locksmith, built this operation on a simple premise: you should know exactly who is coming to your door before you turn the handle. That matters more in South Miami and our South Miami service area than in a sprawling metro where everyone is a stranger. Here, neighbors talk, and a locksmith who shows up by name with a written price builds the kind of trust money can’t buy.
Lock Change in South Miami
A full Lock Change in South Miami means removing the existing deadbolt, knob, or handle set and installing new hardware, not just altering the old one. Homeowners choose this route when hardware is worn, a key has been lost and you want a different key entirely, or the old lock is so corroded from tropical humidity that rekeying it would be throwing good money after bad. On this city’s 1950s and 1960s CBS ranches, we also see owners upgrading after storm-season frame swelling exposed how far out of square the original door openings had drifted.
Dunmore uses this phrase, Change Door Locks, to cover both fresh installations and replacements, and their team walks you through which grades of hardware actually make sense on a block-stucco home. A typical standard deadbolt replacement in South Miami runs $95 – $180, while a full handle-plus-deadbolt swap on an impact-rated door sits closer to $180 – $240. The price you’re quoted on the phone is the price on the invoice.
When a full replacement beats a rekey
If the deadbolt turns like it’s grinding sand or the bolt takes two or three wiggles to seat, you likely need South Miami Door Lock Repair-the cylinder and internal springs have probably absorbed enough moisture to warrant replacement. Where original hardware from the 1960s remains, the savings from trying to rekey old, weakened brass disappears when it fails again in six months. We’ll tell you honestly which route is cheaper over three years, and the written quote makes that math plain.
Impact-door hardware checks
Many South Miami homes carry multipoint locking systems added after Hurricane Andrew. A full lock change on these doors means the technician measures the keep plate alignment and shims the frame before drilling anything, so the new hardware seats flush into the original CBS opening. It’s slower than a standard swap, and it prevents the repeat misalignment calls we see at the same addresses across South Miami every year.
Change Lock Cylinder in South Miami
A Change Lock Cylinder in South Miami replaces the core that your key slides into, rather than the entire lock body or handle set. It’s the right call when a lock works fine mechanically but the key is getting sticky, the cylinder binds, or you suspect a former tenant or contractor kept a copy. Rekeying (changing the internal pins so your old keys no longer work) handles the key-control side, but swapping the cylinder is faster and often cheaper when the old cylinder is pitted and worn from humidity that stays above 70% year-round.
In South Miami, cylinder swaps run $40 – $95 for most Kwikset, Schlage, and Baldwin hardware, including the new keys and labor. The work typically takes under half an hour. We stock common cylinders for the brands found on this city’s aging ranch homes, so there’s no week-long wait for a part.
Corrosion swap vs. rekey
When a brass cylinder sits in constant tropical humidity, the internal pins and springs oxidize and the key starts catching or sticking. A rekey smooths the old pins, but a cylinder swap replaces the whole assembly with fresh metal. On a 1960s Baldwin mortise lock off Red Road, we’ll usually recommend replacing the cylinder rather than rebuilding a sixty-year-old brass core that’s already been through sixty wet seasons.
Keeping your existing hardware
The point of a cylinder change is that your handle, rosette, and finish stay exactly as they are. If you have Baldwin or Kwikset hardware that matches the original mid-century door detail, a cylinder swap preserves the look while giving you brand-new key control. We’ll tell you whether your old knob is worth saving before any work starts.
Trusted Brands We Service in South Miami
We’re factory-authorized to install and service Schlage, Kwikset, Medeco, Mul-T-Lock, Abloy, Baldwin, Yale, and Sargent hardware, from basic pin-tumbler deadbolts to high-security commercial cylinders. For South Miami’s mixed-vintage housing stock, we keep Baldwin, Kwikset, and Yale cylinders and latch sets on the truck, so a cylinder swap on a 1950s ranch doesn’t turn into a two-trip job. Medeco and Mul-T-Lock cylinders require factory-cut keys, which we order with written lead times, and we’ll always quote in writing before ordering anything. Dunmore comes from old words for a great fort, a stronghold built to keep what is inside safe, and that’s the standard we hold every brand to.
Common Change Door Locks Problems We See in South Miami Homes
- Multipoint keep plates drifted out of alignment. Post-Andrew impact doors were retrofit into original 1950s and ’60s CBS openings, and when those concrete walls settle even slightly, the bolts miss the keep plates. The door shuts, the handle lifts, but the lock never fully bolts; that’s the most common repeat service call we answer in South Miami after every major rain season.
- Corroded brass cylinders and steel springs. Humidity above 70% year-round eats at brass cylinders and strike plates faster than most hardware can handle. Sticky or seized deadbolts start showing up years before the hardware reaches its rated life in drier markets.
- Frames that swell after sheet-flooding. South Miami’s low elevation and seasonal heavy rain mean door frames swell intermittently, binding locks that worked fine in dry weeks. The same address often generates multiple calls across one storm season, especially on older CBS frames with original wood jambs.
- Mixed-vintage hardware from decades of partial upgrades. A 1950s Baldwin knob on one door, a 2005 Kwikset deadbolt on another, and a Multipoint Yale system on a third is a normal South Miami interior. We map what you have and standardize where it makes sense so one key can work the whole house.
Pricing for Change Door Locks in South Miami, FL
Expect to pay $85 – $240 for a standard lock change in South Miami, depending on hardware grade and whether we’re dealing with a misaligned impact door or a simple deadbolt swap. Changing a cylinder runs $40 – $95. Rekeying a standard knob or deadbolt usually falls around $60 – $110. If the frame has shifted and needs shimming before new hardware goes in, we’ll include that in the written quote before any drilling starts. There’s no dispatch fee added on arrival, and the full price is quoted on the phone, in writing. Call (910) 714-4287 and we’ll give you a firm range for your specific locks before we send anyone out.
We Also Serve Cities Near South Miami
Besides South Miami, our crews regularly handle lock changes in Change Door Locks in South Miami and the surrounding areas of Miami, Hialeah, Miami Gardens, and Homestead. The same Threshold Standard applies across every visit: named technician, written price, and a 365-day guarantee on every repair. If your property sits in one of these neighboring cities and you need a lock changed after a storm or a tenant turnover, the process is identical.
Serving South Miami, FL - Our Local Coverage Area
We’re based in the South Miami 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 South Miami
South Miami’s impact doors were retrofitted into original 1950s and ’60s CBS openings, and when those concrete block walls settle, even slightly, the multipoint keep plates drift out of alignment. Newer suburbs like Kendall or Doral were built with door openings that match their impact hardware from the start, so they don’t generate the same repeat misalignment calls. Call (910) 714-4287 and we’ll align and secure the hardware so it bolts flush on the first attempt.
Yes. We re-seat the strike and keep plates, shim the frame where gaps have opened, and only then install or rekey the lock. If the original CBS wall has settled, forcing new hardware into an out-of-square opening is what damages doors; careful shimming prevents it. Our techs do this daily on South Miami’s post-Andrew retrofits.
If the handle, latch, and bolt still engage smoothly, a cylinder swap is usually enough, $40 – $95 in South Miami for most brands. If the whole lock feels gritty or the bolt won’t seat, replacing the entire unit, $85 – $240, makes more sense long-term. We’ll assess both options and put the recommendation in writing before any work begins.
We service Kwikset, Baldwin, Yale, Schlage, Medeco, Mul-T-Lock, Abloy, and Sargent. On South Miami’s 1940s – 1960s CBS ranches, Baldwin and Kwikset are the most common original or early-replacement brands we see, and Yale multipoint systems cover many post-Andrew impact doors. Call (910) 714-4287 with the brand on your door and we’ll confirm availability from the truck.
In most cases, within a few hours of your call. We prioritize properties with doors that won’t close or won’t bolt, which is common after sheet-flooding swells frames and knocks keep plates out of line. A live person answers at (910) 714-4287 any hour, and we’ll get a named technician to your South Miami address with hardware matched to the door type.
Securing South Miami Before and After the Storms
Around here, the security gap is most visible right after a heavy rain season. South Miami’s post-Andrew impact-door retrofits put multipoint locking hardware into original 1950s – 60s CBS openings, and the suburb generates repeat misalignment calls after every storm season. A service pattern locksmiths in newer Kendall or Doral rarely see. Even several miles inland, this city’s low elevation and seasonal sheet-flooding swell door frames just enough that a lock that worked in dry weeks binds hard after a storm, leaving a property that looks secure but won’t actually bolt.
On a 1950s CBS ranch off Sunset Drive near Dante Fascell Park, our tech answered a repeat call where an impact-rated door’s multipoint keep plates had slipped out of alignment after a rain-heavy week. The handle lifted, but the bolts never seated. We re-seated the strike and keep plates, replaced the corroded brass cylinder with a bump-resistant option, and re-keyed the pin and tumbler so the homeowner’s old keys were dead. The door locked flush on the first try, no drilling needed.
That same address now has a written record of what was done and a 365-day guarantee that if the alignment fails again during the next storm cycle, we return at no charge. That’s the Done Right Promise, stamped on every repair, and it’s how a South Miami property becomes genuinely lockable again when the walls have shifted. Call (910) 714-4287 for a free estimate. A live person answers, the price goes in writing before anyone is dispatched, and the technician at your door arrives by name and photo, with a badge, so you know exactly who to expect.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving South Miami under the Threshold Group since 2007.