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 Millbrae
Most Millbrae lock changes run between $120 and $340 for standard residential hardware, and we can usually reach your home within 45 to 60 minutes. If you just handed keys to a contractor, tenant, or caregiver you no longer trust, changing the lock cylinder is the fastest way to regain control of who can get in. We cover every neighborhood in Millbrae, from the hillside streets west of El Camino Real down to the flats near the BART station. Call (910) 714-4287 and a live person answers, any hour, any day.
Millbrae’s older housing stock means lock changes here often involve more than swapping one knob for another. The 1950s and 1960s ranches that dominate the hillsides above El Camino Real frequently have original single-cylinder deadbolts, worn mortise locks, or passage-knob-only setups that predate modern security standards. Perry Osgood, who leads our Millbrae work, has walked through enough of these homes to know when a cylinder can be rekeyed and when the whole lock needs to come out. That honest assessment is what separates a real fix from a temporary patch.
Why Dunmore Locksmith Is Millbrae’s Preferred Change Door Locks Company
Dunmore Locksmith is part of Threshold Group, a network of independent local locksmith businesses serving customers since 2007. What that means for you in Millbrae is simple: every technician we send is background-checked, identity-verified, and sent to you by name and photo before the visit. When the doorbell rings, you already know who is on the other side. They arrive in a clean marked uniform and show a photo ID badge at the door. If anyone shows up who you were not told to expect, that visit is covered at no charge. We call this The Threshold Standard, and it exists because opening your door to a stranger should never be a leap of faith.
Our Millbrae customers get a written price before any work begins. That price covers the lock, the labor, and the hardware. It does not grow at the end of the job. And every repair or installation carries the 365-Day Done Right Promise: if something fails within a full year, we come back and make it right at no charge. No vague satisfaction pledge, no fine print. Just a written guarantee stamped on the job.
Change Lock Cylinder in Millbrae
Change Lock Cylinder work in Millbrae typically runs $85 to $180 per cylinder, depending on whether you choose standard pin and tumbler hardware or a high-security keyway from Medeco or Mul-T-Lock. A cylinder swap is the right call when the lock body itself is still solid but you need to invalidate old keys. In Millbrae, we see this most often after a tenant moves out of an in-law unit, after a house cleaner or contractor relationship ends, or after keys go missing somewhere between home and SFO.
Rekeying Existing Cylinders
Rekeying changes the internal pins so your old keys stop working, while the exterior hardware stays in place. On standard Schlage or Kwikset cylinders, this is usually a 20 to 30 minute job. On the 1950s mortise locks common in older Millbrae ranches, rekeying may not be possible because the cylinder format predates modern pin and tumbler standards. We will tell you honestly which one you have.
Replacing Corroded Cylinders
Homes on the bay-facing hillsides of Millbrae get hit with salt-laden marine layer nearly every morning. That fog eats brass and zinc-plated cylinders fast. If your key turns stiffly or sticks halfway, the cylinder may already be seized internally. Replacement is the only durable fix, and we stock corrosion-resistant cylinders locally so you do not wait on a parts shipment.
Door Lock Installation in Millbrae
Door Lock Installation in Millbrae generally costs $140 to $320 for a complete deadbolt and handle set, including the strike plate and door prep work. We install new locks when the existing hardware is beyond rekeying, when a door has no deadbolt at all, or when a homeowner wants to upgrade from a builder-grade knob to something that actually resists forced entry. Many 1950s and 1960s Millbrae homes still have single-cylinder deadbolts that screw into a bored hole with no reinforcing plate, and those are weak points.
Hardware Upgrades on Postwar Doors
Original wood-frame doors on Millbrae ranches have usually settled or warped over six or seven decades. A new deadbolt can test perfectly on the workbench and still fail to throw if the strike plate is out of alignment. We adjust the frame and reposition the strike during installation so the bolt seats fully. Skipping that step leaves a lock that looks installed but does not actually secure the door.
Mortise Lock Conversion
When a Millbrae home has an original mortise lock, a modern cylindrical deadbolt does not simply drop in. The door needs to be prepped for the new format, and the old mortise pocket may need to be filled or reinforced. We do this conversion work regularly on homes west of El Camino Real, and we carry the plates and jigs to make the transition clean.
Trusted Brands We Service in Millbrae
We are factory-authorized to install and service Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware. For Millbrae customers, that means we can match existing finishes and keyways from brands like Baldwin and Yale without mixing mismatched components. We Stock common pinning kits, cylinders, and strike hardware for rapid turnaround. Most lock changes in Millbrae are completed same-day because the parts are already on hand, not ordered from a distributor across the bay. Whether you want a basic Kwikset deadbolt or a high-security Medeco cylinder, we quote the exact hardware price before we start.
Common Change Door Locks Problems We See in Millbrae Homes
- Seized bay-facing cylinders. Morning fog off the San Francisco Bay carries salt that corrodes brass and zinc lock cylinders on hillside homes faster than anywhere else on the Peninsula. A cylinder that turns fine in August can bind hard by February. Replacement is usually the fix.
- Original 1950s mortise locks. Many Millbrae ranches still have the mortise locks the house was built with. The internal springs wear out, the trim plates loosen, and the old cylinder format often has no modern rekey equivalent. We convert these to modern deadbolts.
- Warped doors and misaligned strike plates. Sixty-year-old wood doors settle. The deadbolt stops aligning with the strike plate, and suddenly the lock feels broken when it is actually a frame problem. We realign the strike and adjust the door so the lock engages fully.
- Keypad and access control resets near SFO. The hotel corridor along El Camino Real cycles through electronic key card resets and master key audits constantly. Extended-stay properties change locks on a near-continuous schedule due to staff turnover and guest key returns. We handle both the physical swap and the access control programming.
Pricing for Change Door Locks in Millbrae, CA
In Millbrae, a standard lock cylinder change runs $85 to $180. A complete door lock installation, including new deadbolt, handle set, strike plate, and labor, runs $140 to $320. High-security hardware from Medeco or Mul-T-Lock costs more, usually $200 to $380 per lock depending on the keyway and cylinder type. The price you get on the phone is the price on the invoice. We do not add a call-out surcharge when the technician arrives. If you manage a commercial property along El Camino Real, ask us about flat per-lock pricing for multi-unit rekeys. Call (910) 714-4287 for a free estimate, and we will quote the full job before anyone is dispatched.
We Also Serve Cities Near Millbrae
Our Millbrae team covers the surrounding Peninsula communities daily, including San Bruno, Burlingame, South San Francisco, and Pacifica. If you live on the border of Millbrae and San Bruno, or near the Burlingame line, you get the same Threshold Standard vetting, written pricing, and 365-day guarantee. Our Change Door Locks service is one call away, no matter which side of the city line you are on.
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 Change Door Locks in Millbrae
Most original 1950s mortise locks in Millbrae cannot be reliably rekeyed because the cylinder format has no modern pin and tumbler equivalent, and the internal springs and trim are usually too worn to justify the labor. We will inspect the lock and tell you honestly whether a rekey is workable. If it is not, we convert the door to a modern deadbolt setup that actually secures the entry. Call (910) 714-4287 for an assessment, and we will quote you the replacement cost before you commit.
On Millbrae’s bay-facing hillsides, the marine layer pushes salt-laden fog directly onto exterior hardware, corroding the internal pins and springs of your lock cylinder from the inside out. Cleaning the face of the lock does nothing for internal corrosion. The fix is to replace the cylinder with corrosion-resistant hardware and, in some cases, upgrade the faceplate and strike plate. This is a job for a trained locksmith because forcing a seized lock can snap the key inside the cylinder.
It is both. The door has settled and the strike plate has shifted out of alignment, so the bolt cannot seat fully even though the lock itself works. We reposition the strike plate and, where needed, shave or adjust the door edge so the deadbolt throws cleanly. A lock that does not fully engage is not securing your home, even if it feels like it latched. The repair is typically included in a door lock installation quote, and the final price is the one we gave you on the phone.
Extended-stay properties along El Camino Real run master key and electronic access control systems, and a lock change that works on a single-family ranch will often fail a hotel or extended-stay front door. The hardware is commercial grade, the keying is hierarchical, and the access control programming has to be handled alongside the physical swap. We quote a flat per-lock price for commercial rekeys and give the property manager a written scope before any work starts. Expect the job to be scheduled, not dispatched same-day.
No. We can key the new lock to match your existing house key, a process called keying alike, so one key still opens every door you currently use. This is standard practice on Millbrae homes where the front door, side gate, and garage all share a single key. If you are replacing hardware because you do not trust who has the old keys, we can also rekey the rest of the house and issue you a new key set at the same time. Call (910) 714-4287 and we will walk you through the options before we arrive.
If you need a lock changed in Millbrae, call Dunmore Locksmith at (910) 714-4287. A live person answers around the clock, the price you hear is the price you pay, and the technician at your door will be the one we told you to expect, by name and photo. That is The Threshold Standard, and it covers every job we do in Millbrae.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Millbrae since 2007.