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 Kentfield
Changing door locks in Kentfield usually costs between $145 and $385 per lock for parts and labor, and our nearest technician can typically reach most Kentfield addresses within 30 to 60 minutes. Most jobs take under two hours once we arrive. We work on standard knob and deadbolt sets, but in Kentfield the real work is often retrofitting high-security hardware onto old mortise doors. If you need a lock changed today, call (910) 714-4287 and a live person answers, day or night.
Why Dunmore Locksmith Is Kentfield’s Preferred Change Door Locks Company
Kentfield is a unique market for lock work. This is one of Marin County’s most affluent and exclusively residential unincorporated communities, where estate-sized lots along the Corte Madera Creek corridor carry high-security hardware as a baseline, not an upgrade. Our Change Door Locks team reads blueprints and spec sheets before touching a Medeco or Mul-T-Lock cylinder because getting it wrong here costs a homeowner their key control. We have been part of the Threshold Group family of independent local locksmith businesses since 2007, which means every technician sent to a Kentfield home has already passed a background check and identity verification under the Threshold Standard. Before the visit, you get a name and a photo. When the technician arrives, they wear a clean marked uniform and show a photo ID badge at the door. If someone you were not told to expect shows up, that visit is covered at no charge. That matters on a quiet lane off Sir Francis Drake Boulevard, where most people do not open the door to strangers.
Our live phone coverage runs 24 hours a day, 365 days a year. When a Kentfield homeowner calls at 10 p.m. about a deadbolt that will not throw, a person picks up. Not a voicemail. Not a chatbot. A real person who can dispatch a tech from our San Francisco Bay Area office to your door. That is the Dunmore Locksmith difference, and it is written into how we operate, not just how we advertise.
Door Lock Change in Kentfield
A Door Lock Change in Kentfield means removing the existing lockset or deadbolt and installing a new one, either because the old hardware failed or because you want better security. In most Kentfield homes, this is not a fifteen-minute big-box swap. The area’s custom and semi-custom homes date largely from the 1940s through 1970s, and many still carry solid-wood statement entry doors with original mortise lock bodies that have no cylindrical bore. Swapping in a modern deadbolt means machining a new mortise pocket or fabricating an adapter plate. Standard door lock change in Kentfield typically runs $145 to $285 per lock. High-security replacements with brand hardware can reach $385 per lock. Our price goes in writing before any work starts, and that written figure is the price on the invoice.
Restricted Keyway Replacements
On Corte Madera Creek corridor estates, swapping a builder-grade cylinder for a Medeco or Mul-T-Lock restricted keyway often accompanies the lock change. The new blank requires an authorized dealer card to duplicate, so your key cannot be copied at a kiosk. We cut and register those blanks on-site.
Mortise Pocket Machining
When a Kentfield door still has its original mortise lock and you want an ANSI Grade 1 deadbolt instead, the pocket depth and profile are wrong. Our techs rout the pocket carefully to accept the new bolt assembly without chewing up the faceplate or leaving the door face scarred.
Lock Change in Kentfield
A Lock Change in Kentfield usually means a lock cylinder has failed or a key has been lost, and you need the hardware swapped so old keys stop working. In a standard modern door, that job runs $120 to $240 per lock and usually takes about an hour. But on a gated property above Sir Francis Drake Boulevard, the lock change often ties into an existing alarm panel or gate intercom loop, and the new cylinder needs to match the restricted key system already licensed to the house. Our crews coordinate the lock change with that low-voltage wiring so the driveway gate, intercom, and entry locks all stay on one controlled system.
Fog-Driven Cylinder Swaps
Kentfield sits in the Ross Valley with Corte Madera Creek running through it, and the persistent morning fog plus ambient humidity accelerates oxidation on exterior deadbolts and gate hardware. We see pin and tumbler stacks seize within a single season on uncoated iron hardware. A lock change here often includes anti-corrosion treatment on the new cylinder and strike plate as standard practice.
Same-Key Consolidation
If you have had three different keys for the front door, side gate, and garage man-door for years, a lock change is the moment to fix that. We can key all new locks alike and register the change on a restricted keyway so future copies stay controlled.
Trusted Brands We Service in Kentfield
We are factory-authorized to install and service hardware from Schlage, Kwikset, Medeco, Mul-T-Lock, Abloy, Baldwin, Yale, and Sargent. For Kentfield specifically, the conversation is usually Medeco and Mul-T-Lock because restricted key blanks protect key control on gated estates. We stock common cylinders, tailpieces, and replacement faceplates in our Bay Area service vehicles, which keeps turnaround on a Kentfield lock change tight. If your door carries a Baldwin mortise set with a worn cylinder, we can machine the replacement rather than telling you to replace the entire lockset. That saves the original hardware that belongs with the door.
Common Change Door Locks Problems We See in Kentfield Homes
- Assuming a standard cylindrical deadbolt will drop into a mortise-lock door. The pocket is the wrong depth and profile, so the new bolt will not throw, the door will not latch, and the faceplate gets chewed up. We see this after a homeowner tries a DIY swap on a 1960s entry door off Woodland Road.
- Recommending a builder-grade Kwikset or Schlage F-series cylinder on a gated Corte Madera Creek estate. The driveway gate, intercom, and alarm panel are often already on a restricted Medeco or Mul-T-Lock system. Dropping in a kiosk-copyable cylinder breaks key control and defeats the whole system.
- Leaving exterior iron gate and deadbolt hardware uncoated in the Ross Valley humidity. Oxidation seizes the pin and tumbler stack quickly, and within a season the lock stops throwing cleanly. A proper Kentfield lock change includes treating exterior hardware for the local fog.
- Ignoring low-voltage access wiring on hillside parcels above Sir Francis Drake Boulevard. Gated driveways are common enough that a lock change may require integrating a new cylinder with the existing gate intercom and alarm panel. A locksmith without that wiring fluency can leave the gate dead and the customer locked out.
Pricing for Change Door Locks in Kentfield, CA
Here are the honest ranges for Kentfield. A standard knob or cylindrical deadbolt replacement runs $120 to $240 per lock. A door lock change with mortise pocket machining on an original solid-wood entry door runs $180 to $320 per lock. High-security replacement with Medeco or Mul-T-Lock restricted cylinders runs $240 to $385 per lock. Smart lock installation with existing alarm or gate integration starts around $260 and goes up with wiring scope. These are not teaser prices. They are written estimates, delivered before any work starts, and the final invoice matches. We do not add a call-out surcharge when the tech arrives. Call (910) 714-4287 for an exact quote, and the price you hear on the phone is the price on paper.
We Also Serve Cities Near Kentfield
Our techs serving Kentfield also cover the surrounding Ross Valley and north Marin communities. We run regular calls to Change Door Locks in Kentfield neighbors in Larkspur, San Anselmo, San Rafael, and Corte Madera. If you live just outside Kentfield on the San Anselmo or Ross border, call us and we will tell you exactly when a technician can reach you.
Serving Kentfield, CA - Our Local Coverage Area
We’re based in the Kentfield 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 Kentfield
You cannot swap a standard cylindrical deadbolt into an original mortise-lock door because the mortise pocket is the wrong depth and profile, so the new bolt will not latch and the faceplate gets damaged. The door needs the pocket machined to accept the new deadbolt assembly, or an adapter plate fabricated to mate the hardware cleanly. Call (910) 714-4287 and we will tell you what your specific door needs before any work starts.
No. Medeco and Mul-T-Lock restricted key blanks require an authorized dealer card to duplicate, and hardware store kiosks do not carry those blanks. We are an authorized dealer for both systems, so we can cut and register spare keys on-site during a lock change in Kentfield. That is the whole point of key control: nobody copies the key without your authorization.
Yes, in Kentfield it often is. Gated driveways on hillside parcels above Sir Francis Drake Boulevard commonly tie the gate intercom into the same low-voltage loop as the alarm panel and entry locks. When the gate stops responding, the failure is often a worn or corroded lock cylinder or a broken wire in the access loop, which is exactly what our lock and access techs troubleshoot. Call us and we will trace the loop before quoting the fix.
Quite fast. Kentfield’s morning fog and Ross Valley humidity cause exterior deadbolts, padlocks, and iron gate hardware to oxidize far faster than in drier neighboring communities. We have seen uncoated exterior cylinders seize within a single season. Any lock change on a Corte Madera Creek side property should include anti-corrosion treatment on the new hardware as a standard step.
Yes, if your existing system uses a restricted keyway, we can key the new locks alike and register the change on the same controlled blank. If your alarm and gate system uses a standard keyway, we can often upgrade the whole property to a Medeco or Mul-T-Lock restricted system during the lock change so one key operates every door and gate. Call (910) 714-4287 and we will map your current keying before quoting the work.
Call Dunmore Locksmith for Change Door Locks in Kentfield
If you need a door lock changed in Kentfield, call us at (910) 714-4287. A live person answers, day or night, and gives you a written quote before any work starts. Every lock change is covered by the 365-Day Done Right Promise: if the repair fails within a year, we return at no charge. You will know the technician’s name and face before they arrive. That is how lock work should work in Kentfield.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Kentfield as part of the Threshold Group family of independent local locksmith businesses since 2007.