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 Kensington
Changing door locks in Kensington usually costs $95 to $220 per lock for standard hardware, with vintage mortise lock service running $180 to $380 due to the specialized parts and hand-fitting involved. Most jobs are completed the same day we hear from you. Call (910) 714-4287 and you’ll get a live person, a straight answer, and a written price before anyone drives up the hill.
Kensington is not an easy place to be a homeowner who ignores their locks. The houses are old, the fog is persistent, and the hardware in those thick pre-war doors was built to dimensions nobody manufactures anymore. We know this because we work here constantly. Our Change Door Locks team carries period-sized mortise cylinders, cast-iron strike plates, and marine-grade stainless hardware on every Kensington call because that’s what the houses demand.
When you need a Change Door Locks in Kensington specialist, you want someone who has already seen a 1928 Tudor with a seized tailpiece and knows not to drill it. That’s us.
Why Dunmore Locksmith Is Kensington’s Preferred Change Door Locks Company
Kensington homeowners call Dunmore Locksmith because the old locks in this town punish generic solutions. A standard big-box deadbolt kit often won’t seat in a 1924 Craftsman door without cutting into the frame, and a locksmith who doesn’t stock vintage mortise bodies will tell you to replace a perfectly restorable original with a run-of-the-mill cylindrical lockset. We don’t do that. We source, fit, and service period-appropriate hardware because keeping a Kensington house intact matters to the people who live in it.
Every technician we send up Colusa Avenue or along the Arlington corridor is background-checked, identity-verified, and dispatched under the Threshold Standard. That means you get the technician’s name and photo before the visit, and they show a photo ID badge at your door before you let anyone inside. If someone shows up who you weren’t told to expect, that visit is covered at no charge.
Our response time to most Kensington addresses is under 60 minutes for lockouts and urgent lock changes. Calls ring to a live person 24 hours a day, every day. Perry Osgood has built this operation around one promise: you should know exactly who is coming to your door before you open it.
Door Lock Change in Kensington
A Door Lock Change in Kensington means removing a worn or compromised lock from one of these older hill houses and installing a replacement that actually fits the door. On a 1930s home near the Kensington Circle, that might mean a new marine-grade cylinder inside the existing mortise body. On a newer door along Grizzly Peak Boulevard, it might be a straightforward ANSI Grade 1 deadbolt swap. The work varies. The standard doesn’t: written price first, correct hardware second, no surprise totals at the end.
Same-Day Door Lock Change for Kensington Residents
Most lock changes in Kensington are done the day you call. We keep our service vans stocked for this housing stock specifically, which means we’re not wasting your afternoon driving back down to the flatlands for a part.
What a Full Door Lock Change Includes Here
You get removal of the old hardware, a callout on whether the original is salvageable, installation of the new lock, testing for latch alignment, and a written 365-Day Done Right Promise. If the repair fails within a year, we return at no charge.
Lock Change in Kensington
A Lock Change in Kensington is the faster, more targeted version of the job: swapping the cylinder, rekeying the lock, or replacing a single failed component rather than the entire lockset. On these older Kensington doors, the wise move is usually this one. The original mortise bodies are often better built than anything you can buy now, and a lock change that preserves the vintage housing while upgrading the internal cylinder gives you modern security without gutting the door’s character.
Cylinder and Keyway Swap on Vintage Mortise Sets
We pull the corroded cylinder, clean the mortise pocket, and fit a new cylinder keyed to your existing keys when possible. If you want fresh keys entirely, we rekey, which means changing the internal pins so your old keys no longer work.
Modern Security in a Kensington Original
A lock change on a Kensington cottage often means upgrading to a bump-resistant, fog-tolerant cylinder while keeping the original skeleton-key face plate if that’s what you want. The door looks original. The lock works like it’s new.
Trusted Brands We Service in Kensington
We’re factory-authorized to install and service Schlage, Kwikset, Medeco, and Yale hardware, and we stock the parts Kensington doors actually need. If your home still has its original mortise set, we carry period-sized mortise cylinders and cast-iron strike plates that fit those deep 1920s-era door pockets. For coastal-facing doors along the ridges where fog pools hardest, we recommend Schlage’s marine-grade stainless cylinders and Kwikset’s ANSI Grade 1 deadbolts, both of which we keep on hand for same-day work. No waiting on a special order from a parts warehouse in Ohio. We have it in the van.
Common Change Door Locks Problems We See in Kensington Homes
- Seized tailpieces from hillside fog. The marine layer that pools over Kensington drives damp, salty air into the iron and brass internals of old mortise locks. The tailpiece oxidizes, the key turns, and nothing happens. We free and replace the tailpiece rather than drilling the lock.
- Pitted cylinder faces that snap keys. Salt-laden air corrodes the cylinder face on fogward doors, causing keys to drag and eventually snap in the keyway. A marine-grade stainless cylinder fixes this permanently.
- Modern deadbolts that won’t seat in pre-war doors. Thick wood-frame doors from the 1920s and 1930s have deep mortise pockets sized for lock bodies no longer manufactured. A generic cylindrical deadbolt kit often leaves the bolt misaligned. We fit the right-size mortise hardware instead of cutting into your original door.
- Cast-iron strikes that have rusted through screw holes. The strike plate is the weakest link in a fog-battered Kensington door. We replace them with new cast-iron or stainless strikes sized to the original pocket, so the deadbolt actually throws fully.
Pricing for Change Door Locks in Kensington, CA
Here are the honest ranges for Kensington work. A standard lock change on a modern door runs $95 to $150 per door. Rekeying a standard knob or deadbolt runs $85 to $120 per cylinder. Vintage mortise lock service, including pulling the body and freeing a seized tailpiece, runs $180 to $380 depending on parts. Marine-grade stainless cylinder upgrades add $60 to $110 per lock. The price we quote on the phone is the price on the invoice. No call-out surcharge added when the tech arrives, no bait-and-switch. Call (910) 714-4287 for a free estimate and a written quote before anyone is dispatched.
We Also Serve Cities Near Kensington
Dunmore Locksmith works throughout the Bay Area, including Kensington and the nearby communities of Los Angeles, San Diego, San Jose, and San Francisco. If you’re in one of those cities and dealing with a seized mortise lock or a lock change after a tenant moves out, the same Threshold Standard applies: named technician, photo ID, written price.
Serving Kensington, CA - Our Local Coverage Area
We’re based in the Kensington 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 Kensington
Often not without cutting, because pre-WWII Kensington doors have deep mortise pockets sized for obsolete lock bodies. We stock mortise-specific Schlage and Kwikset options, plus period-sized mortise cylinders that drop into the existing pocket without damaging the door. Call (910) 714-4287 and tell us the year of your house; we’ll know what fits before we arrive.
Because Kensington sits in the Berkeley Hills where marine fog pools nightly, and that salty damp air corrodes the cast-iron and early-brass internals of old mortise locks. El Cerrito’s flatlands are drier, so their locks age differently. Oiling a seized tailpiece won’t reverse oxidation; the fix is disassembly, cleaning, and replacing the affected part with marine-grade stainless. Call us for a free phone assessment.
In most cases we open it without damage. We use non-destructive entry methods first, especially on vintage Kensington doors where preserving the mortise set matters. Drilling is a last resort for locks that are already failed beyond salvage. Tell us what the lock is doing and we’ll tell you what the likely approach will be, along with the cost, before we dispatch anyone.
If the mortise body is original and intact, rekeying it, which means changing the internal pins so your old keys stop working, is almost always the better and more affordable choice, typically $85 to $120. If the tailpiece is seized, the strike is rusted through, or the cylinder face is pitted, you’re looking at a lock change or component replacement. We’ll tell you which one your door needs, and quote it in writing. Call (910) 714-4287.
It should. Kensington relies on county Sheriff response rather than a local police department, and response times are slower than in a city with its own force. That’s why we recommend ANSI Grade 1 deadbolts and high-security key control systems on Kensington homes, and why many of our customers here choose Medeco or Schlage high-security cylinders. A stronger first-line lock buys you real time. We’ll walk you through the options on the phone for free.
If you need a lock changed, rekeyed, or upgraded in Kensington, call (910) 714-4287. You’ll reach a live person who can quote your job in writing before anyone is dispatched. The price we give you on the phone is the price on the invoice, and every job carries the 365-Day Done Right Promise. That’s it. That’s how we work here.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Kensington through the Threshold Group’s Bay Area office.