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 Sebastopol
Changing door locks in Sebastopol typically runs $95 to $240 per lockset, depending on whether we rekey the existing cylinder or install new hardware. Most jobs at farms and homes around Sebastopol are completed the same day we get the call, often within two hours of dispatch. The fog that rolls in from Bodega Bay through the Petaluma Gap does real damage to exterior locks here, and we carry the marine-grade hardware that survives it. Call (910) 714-4287 and a live person answers, day or night. We have worked Sebastopol properties long enough to know which doors seize first and which hardware fails fastest.
Why Dunmore Locksmith Is Sebastopol’s Preferred Change Door Locks Company
Dunmore Locksmith operates under the Threshold Group umbrella, serving customers since 2007 with a standard most locksmiths don’t match: every technician is background-checked, identity-verified, and sent to you by name and photo before the visit. When our uniformed tech arrives on your Sebastopol doorstep, they show a photo ID badge before anything else. You know exactly who to expect before you turn the handle. That matters on a rural road off Bodega Highway or a quiet street near Ives Park, where opening the door to a stranger should never require a leap of faith. Our phones are answered by a live person 24 hours a day, every day of the year. No voicemail, no chatbot, no “press 1 for new service.” And every job carries the 365-Day Done Right Promise: if a repair fails within a full year, we return at no charge, in writing, stamped on the work order. Perry Osgood leads the team, and our Sebastopol customers regularly tell us they called because a neighbor recommended us after a bad experience with a company that quoted one price on the phone and another at the door. We don’t do that. The price goes in writing before any work begins, every single time.
Change Lock Cylinder in Sebastopol
Change lock cylinder work in Sebastopol is often driven by exactly one thing: the Petaluma Gap fog. Exterior lock cylinders on north- and west-facing doors absorb marine moisture from January through June, and we routinely pull cylinders with pitted plug faces, rusted springs, and seized pin chambers. A cylinder swap here costs $95 to $180 per lock, including parts and labor, and is honestly the more durable fix when a cylinder has years of coastal moisture behind it. The job means removing the old cylinder, pinning a new one to match your existing key, or generating new keys if you want a fresh start, then reinstalling and testing. Most Sebastopol cylinder changes are done in under an hour per door.
When Rekeying Isn’t Enough
Rekeying works when a cylinder is still mechanically sound. On Sebastopol’s older farmhouses, we frequently find original mortise locksets and early Schlage cylinders with worn plug faces and corroded pin chambers from decades of marine humidity. A rekey of a cylinder in that condition can fail within months because the internal tolerances are gone. A full cylinder change is the correct call there. We’ll tell you which one your lock needs and why, before any work starts.
Fog-Resistant Cylinder Hardware
For Sebastopol doors that face the fog line directly, we often fit stainless steel replacement cylinders or cylinders with alloy plugs that resist pitting. These cost a little more than standard brass, roughly $20 to $40 extra per cylinder. After a single wet season on a west-facing door, you understand where that money went.
Door Lock Installation in Sebastopol
Door lock installation in Sebastopol runs $120 to $240 per door for a standard knob, lever, or deadbolt replacement, depending on the hardware grade and whether the existing bore pattern matches. Many older Sebastopol bungalows built during the Gravenstein apple era have doors with thinner cross-bores or original mortise pockets that don’t accept modern cylindrical locks without adjustment. We install Schlage, Kwikset, and Medeco hardware as factory-authorized installers, and we keep a local stock of common parts so most installations finish same-call without a second trip. The full price is on paper before we start.
Marine-Grade Mortise Replacements
If your Sebastopol farmhouse still carries an original mortise lockset, replacement isn’t a simple box-store job. We match the mortise pocket dimensions and install new mortise locks or full-mortise cylindrical adapters that keep the door’s original profile. Most mortise lock installations here run $180 to $240, including refinishing the faceplate and adjusting the strike. Cheaper, modern bore-through conversions leave ugly gaps on century-old doors, and we’ll talk through the tradeoff with you honestly.
Smart Locks and Keypad Entry for Fog-Exposed Doors
Many Sebastopol homeowners ask about smart locks or keypad entry. They work here, but the marine environment dictates hardware choice. We fit keypad deadbolts with sealed, rust-resistant exterior housings and stainless interior hardware, never the cheapest line. Installation and configuration run $140 to $240 per door above hardware cost. We program codes, pair the app, and walk you through it before we leave.
Trusted Brands We Service in Sebastopol
We’re factory-authorized to install and service Schlage, Kwikset, Medeco, Abloy, Baldwin, Yale, Mul-T-Lock, and Sargent hardware. For Sebastopol specifically, we stock extra Schlage and Kwikset cylinders, plus a small inventory of Medeco high-security cylinders for commercial barns and ag buildings across the west county. If you have a specific brand or key profile on an older farmhouse lock, we likely carry the matching pinning kit on the truck. That means fewer callbacks and no “we’ll have to order it” when you’ve already got the door apart.
Common Change Door Locks Problems We See in Sebastopol Homes
- Seized exterior cylinders from Petaluma Gap fog: Marine humidity pitts and rusts external plug faces, causing keys to bind or snap. This is the single most common change-door-locks call across Sebastopol from Gravenstein to South Main.
- Corroded mortise locks on apple-era farmhouses: Original mortise bodies rust internally after decades of damp air. Rekeying isn’t possible when the lock body itself is failing, so the cylinder and often the entire mortise mechanism get swapped.
- Seasonal deadbolt binding from frame swelling: Wood-frame bungalows off Pleasant Hill Road and Florence Avenue absorb winter moisture. The deadbolt tests fine in July and jams in January, which usually means adjusting the strike plate or planing the frame slightly, not replacing the lock.
- Frozen shed and barn padlocks after wet season: Rural Sebastopol properties often have three to five lock points across outbuildings. Shackles rust solid from October to March. In January and February, we replace padlocks or cut and replace them more than in any other Sonoma County town.
Pricing for Change Door Locks in Sebastopol, CA
We Also Serve Cities Near Sebastopol
Our crews handle Change Door Locks work in Sebastopol plus Santa Rosa, Forestville, Rohnert Park, and Cotati. Same-day coverage applies through most of Sonoma County, and the same written-price guarantee and 365-Day Promise follow every job no matter the city.
Serving Sebastopol, CA - Our Local Coverage Area
We’re based in the Sebastopol 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 Sebastopol
Why do the locks on my Sebastopol shed seize every spring even though I cover them?
The Petaluma Gap fog keeps padlock shackles and cylinder mouths wet for months, not weeks. Covers trap condensation against the metal and make the problem worse. The shackle rusts internally, the ball bearings pit, and the key turns a partially destroyed core until something snaps. In January and February we replace seized padlocks on Sebastopol outbuildings more often than any other lock type. A stainless-shackle padlock or a marine-grade lock body will hold up far better. Call (910) 714-4287 and we’ll match the right padlock to your gate or shed.
Can you rekey the old mortise lock on my apple-era farmhouse, or do I have to replace it?
Sometimes yes, often no. If the mortise lock body is still mechanically sound and the cylinder isn’t pitted from decades of fog, we can rekey it for $65 to $95. But many original mortise cylinders in Sebastopol farmhouses have internal corrosion that makes rekeying a short-term fix. We’ll inspect it, show you what we’re seeing, and tell you if a cylinder swap or full mortise replacement is the better call. Honest answer before any work starts. Call (910) 714-4287 to schedule a look.
My deadbolt drags only in winter – is that the lock or the door?
In Sebastopol, it’s usually the door frame, not the lock. Wood-frame bungalows and farmhouses take on winter moisture and swell until a deadbolt that was fine in July binds hard in January. We adjust the strike plate, shave the frame slightly where needed, or occasionally reset the hinges. If the lock itself is corroding inside from fog exposure, that’s a separate issue, and we’ll fix that too. Either way, it’s a house-call diagnosis with a written price. Call (910) 714-4287.
Do you handle multiple lock points across a rural Sebastopol property in one visit?
Yes. That’s the normal pattern for Sebastopol, not the exception. Many properties hold a farmhouse lock, two to four outbuilding locks, and several padlocks. We walk the property with you, inventory every lock point, and give you one itemized written price before beginning. One visit can handle rekeying the house to one key, replacing corroded cylinders, and cutting off frozen padlocks all in the same trip. Call (910) 714-4287 and we’ll plan the whole property at once.
Should I upgrade to a smart lock or keypad entry for a coastal Sebastopol door?
Yes, if you pick the right hardware. Marine fog will ruin a cheap smart lock within two seasons. We install sealed keypad deadbolts and smart locks with stainless or rust-resistant exterior housings, and we stock several models that hold up along the Bodega Bay fog corridor. The installation and programming runs $140 to $240 per door plus hardware. You get a written price, a demo of the app, and a full year under the 365-Day Done Right Promise. Call (910) 714-4287 for a recommendation specific to your door.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Sebastopol under the Threshold Group standard since 2007.






