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 Door Lock Repair Across Millbrae
When a door lock fails in Millbrae, you need a straight answer fast. A standard lock repair here typically runs $85 to $190, rekeying a cylinder costs $20 to $30 per lock, and a broken key extraction usually lands between $75 and $150. We give you the full price on the phone before anyone is dispatched, and that is the price on the invoice. If your deadbolt won’t turn on Murchison Drive or your sliding door latch won’t catch near Taylor Middle School, call (409) 405-4485 and you’ll speak to a live person, not a voicemail tree.
We know Millbrae because we work here constantly. The housing stock shifts from 1950s single-story homes in the Highlands to newer infill townhomes along El Camino Real, and each type has its own lock problems. Our Door Lock Repair team arrives in uniform, background-checked, with a trackable live arrival time so you’re not stuck waiting in a four-hour window.
Why Preston Locksmith & Security Is Millbrae’s Preferred Door Lock Repair Company
Millbrae homeowners call us because we don’t play the bait-and-switch game that plagues this trade. We quote a written price before our tech leaves the van. We send a background-checked, uniformed technician whose name and arrival time you can track from your phone. And every repair carries the 365-Day Done Right Promise: if it’s not done right, we make it right, with a free second visit if the repair fails.
Kevin Yoon, who leads Preston Locksmith & Security, built the company in 2008 around a simple rule: the customer should know exactly what a fix costs and who is coming to do it. That rule is why Millbrae residents on streets like Chadbourne Avenue and La Cruz Avenue keep our number saved. We service Schlage, Kwikset, Medeco, and Abloy hardware daily, and our techs carry common parts for Millbrae’s older mortise locks and newer builder-grade cylinders on the truck.
Dispatch for Millbrae is coordinated from the brand’s San Francisco Bay Area office, and our crews reach most Millbrae neighborhoods within 30 to 45 minutes. Every job ends with before-and-after photos and a digital invoice with a pay link. No surprises, no anonymous tech, no bill that swells between the estimate and the invoice.
Broken Key Extractor in Millbrae
A broken key extractor job in Millbrae happens more often than you’d think, especially on the older single-story homes where keys have been in daily use for decades. When a key snaps off flush inside the lock cylinder, the fix involves using a specialized extractor tool to hook and pull the fragment out through the keyway without damaging the pin and tumbler stack. Done right, the cylinder survives and you keep your existing hardware.
Expect to pay $75 to $150 for broken key extraction in Millbrae, depending on how deeply the fragment is lodged and whether the key broke off cleanly or at an angle. We quote that price before dispatch. If the cylinder was already failing, we’ll tell you on the phone that Rekey Locks - Millbrae service or replacing may be needed and give you the full range before we arrive.
When the key snaps in the morning rush
We got a call from a homeowner on Murchison Drive in the Millbrae Highlands whose front door key snapped off flush inside the lock cylinder during a morning rush. Our tech used a broken key extractor and a non-destructive entry approach to pull the fragment without damaging the pin and tumbler stack, then rekeyed the existing Schlage deadbolt so the homeowner’s spare key worked again. Total time on site was under 35 minutes, and the price quoted before dispatch was the price on the invoice.
Older locks are more likely to snap keys
Millbrae’s mid-century homes often still carry original mortise lock bodies with internal springs that have worn down after 60-plus years of use. That wear creates extra friction inside the keyway, which is exactly what makes a key more likely to snap. A clean extraction is usually quick. A jagged break with a seized cylinder can take longer, and we’ll tell you that honestly up front.
Sliding Door Lock Repair in Millbrae
Sliding door lock repair in Millbrae often gets misdiagnosed, especially in the El Camino Real corridor’s infill townhomes where the real issue is frequently a misaligned track or a warped frame, not the latch itself. Our techs check the full assembly: the lock mechanism, the track alignment, the rollers, and the strike plate. That way you’re not paying for a new lock that won’t solve the problem.
Sliding door lock repair in Millbrae typically runs $110 to $220 when the lock itself needs replacing or the latch needs realignment. If the track or frame is the culprit, we’ll show you the misalignment with photos and give you a written quote for the full fix before any work continues. No discovery fees, no “while we’re here” upsells.
Misaligned track vs. broken latch
Builders in the newer townhome developments along El Camino Real installed a lot of sliding doors quickly, and those frames settle over time. The result is a lock that worked fine at move-in and now won’t catch. We check whether the door is square in its frame first; you’d be surprised how often the lock hardware is perfectly fine and the issue is a sagging roller or a loosened track screw.
Older sliding doors with worn hook latches
On Millbrae’s older homes, sliding door locks sometimes use a hook latch that has worn smooth over decades. The visible symptoms are the same: the door won’t stay shut, or a firm tug opens it. Replacement hook latches are often sourced same-day from local suppliers, and we stock the common sizes on the truck to avoid a second visit.
Trusted Brands We Service in Millbrae
Our techs are trained and equipped to service Schlage, Kwikset, Medeco, and Abloy hardware, which covers the vast majority of what’s installed in Millbrae homes. That means we’re not limited to one manufacturer’s parts. We rekey Kwikset and Schlage deadbolts on site, we can cut Medeco high-security keys for Commercial Locksmith in Millbrae clients on Taylor Boulevard, and we’re familiar with the Abloy cylinders used in some of the newer condominium buildings near the BART station. We carry common residential parts on the truck, and when a specialized mortise lock body needs to be ordered, we tell you the timeline before we start, not after.
Common Door Lock Repair Problems We See in Millbrae Homes
- Seized mortise lock bodies in 1950s-era homes. The original locks on Millbrae’s older single-story houses often have worn internal springs that no longer match modern replacement parts. A simple fix can turn into a parts-sourcing delay, so we inspect first and quote honestly rather than selling you a replacement lock you don’t need.
- Misdiagnosed sliding door failures in newer townhomes. Along the El Camino Real corridor, the average sliding door issue is a track alignment or frame warping problem, not a broken latch. Replacing the lock without fixing the alignment wastes your money and the door still won’t latch.
- Builder-grade pin and tumbler cylinders that wear out quickly. Newer townhomes in Millbrae often ship with entry-level cylinders that start feeling loose or sticky after five to seven years. Rekeying is usually the fastest fix, and it’s cheaper than replacing the hardware: $20 to $30 per cylinder, written price confirmed before we start.
- Stripped deadbolt strike plates. We see this on both old and new construction across Millbrae. The strike plate is the metal plate on the door frame. When the screws strip out, the deadbolt won’t hold, and the fix involves drilling out for longer screws and securing the plate properly, not replacing the entire lock.
Pricing for Door Lock Repair in Millbrae, CA
Standard door lock repair in Millbrae runs $85 to $190. Broken key extraction runs $75 to $150. Rekeying is $20 to $30 per cylinder, and sliding door lock repair lands between $110 and $220. If you need a new deadbolt installed, expect $95 to $220 including the hardware, depending on the grade of the lock. These are the real numbers for this market, not teaser rates that balloon after someone “discovers” a problem.
What affects your final price: the age and type of the lock, whether parts need to be sourced for a mortise lock body, and whether the door itself has alignment issues. We tell you all of this on the phone, in writing, before dispatch. Call (409) 405-4485 and you’ll get a free estimate with the full price range spelled out before anyone gets in a van.
We Also Serve Cities Near Millbrae
While this page covers door lock repair in Millbrae specifically, our team also handles calls in San Bruno, Burlingame, South San Francisco, and Pacifica. If you’re just over the city line near the Millbrae/San Bruno border, we’ll still get to you fast. Wherever you are on the Peninsula, the same written-price guarantee and Door Lock Repair standard applies.
Serving Millbrae, CA - Our Local Coverage Area
We’re based in the Millbrae 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 Door Lock Repair in Millbrae
You’ll get the technician’s name, photo, and a live trackable arrival time on your phone before anyone knocks. Our techs wear Preston Locksmith & Security uniforms and drive marked vehicles. Every job includes The Relay Visibility Guarantee, which means a written price before work starts, before-and-after photos, and a written guarantee on the repair. Call (409) 405-4485 to book; you’ll know exactly who is coming.
In most cases we can repair it. Millbrae’s 1950s-era homes often have original mortise lock bodies with worn internal springs or a seized cylinder, and those can frequently be rebuilt by sourcing the correct parts rather than replacing the entire assembly with a modern deadbolt that doesn’t fit the door prep. We’ll tell you honestly whether repair or replacement makes more sense, and give you the written price for both before we start.
It’s usually a door alignment issue. In the infill townhomes along El Camino Real, track settling and frame warping are the most common causes of a sliding door that won’t latch, even when the lock hardware is perfectly functional. We check the full assembly, including rollers, track alignment, and strike plate, before recommending a lock replacement. If the lock is actually fine, we’ll show you the proof with photos and quote only for the real fix.
No. For standard lockouts, our techs use non-destructive entry methods first: bypass tools, air wedges, or picks, applied carefully to avoid damaging your door or frame. Drilling is an absolute last resort, and if it ever comes to that, we’ll tell you the cost and the exact reason before we reach for a drill bit. Most Millbrae lockouts are resolved without a single scratch on the hardware.
Rekeying swaps the internal pins inside the cylinder so the old keys no longer work and a new key operates the same lock. It costs $20 to $30 per cylinder in Millbrae, compared to $95 to $220 for a new deadbolt installation including hardware. If your existing lock is in good mechanical shape, rekeying is almost always the smarter and cheaper move. We’ll inspect the lock first and give you a straight recommendation.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Millbrae since the company’s founding in 2008.






