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 Inverness
Changing door locks in Inverness is a different job than it is almost anywhere else in Marin County, and we say that with a decade and a half of evidence behind it. The fog that pours off Tomales Bay doesn’t just chill the air; it works its way into every cylinder, every tumbler, every mortise pocket in a 1920s cottage until hardware that worked last summer is frozen solid by the time you return for Thanksgiving. Dunmore Locksmith sends background-checked, photo-badged technicians into Inverness neighborhoods like Paradise Ranch Estates, Seahaven, and the ridge roads above Sir Francis Drake Boulevard, and because our crews stock marine-grade cylinders and mortise lock parts on every truck, we usually get your door working again the same day you call. If you’re standing at a seized deadbolt right now, call (910) 714-4287 and a live person answers. Always.
Why Dunmore Locksmith Is Inverness’s Preferred Change Door Locks Company
Most locksmiths in the Bay Area will tell you they serve Inverness, then quote you a 90-minute window from San Rafael and send whoever’s available. That doesn’t work here. Inverness sits at the far western edge of Marin on the shore of Tomales Bay, and when a vacation rental owner arrives at 8 p.m. to find the front door won’t unlock, waiting two hours for a tech who’s never seen an original mortise lock body is not an option. We dispatch directly to Inverness, Point Reyes Station, Olema, and the beach roads off Pierce Point Road, and our technicians know this housing stock: 1910s to 1950s wood-frame summer cottages, swollen doors, salt-pitted cylinders, and obsolete formats that a big-box replacement lock simply won’t fit.
Perry Osgood, who runs Dunmore Locksmith, has built our Inverness reputation on one principle: tell the truth about what the lock actually needs. Sometimes that’s a fifteen-minute rekey. Sometimes it’s an honest conversation about why a new Schlage deadbolt won’t drop into a door that’s been breathing Tomales Bay fog for ninety years. Customers in Inverness consistently mention two things in their feedback: the tech showed a photo ID badge before stepping inside, and the written quote matched the invoice exactly. Those are both parts of the Threshold Standard, the vetting and pricing protocol every Dunmore technician follows. Background-checked, identity-verified, sent to you by name and photo before the visit. If the person at your door is not who we told you to expect, that visit costs you nothing.
Change Lock Cylinder in Inverness
A Change Lock Cylinder in Inverness almost always means swapping out a cylinder that has been eaten alive by salt air, and it’s the single most common job we do out here. The cylinder is the part your key slides into; when the tumblers inside oxidize from months of fog exposure, the key won’t turn, or turns only with a force that threatens to snap the key off in the lock. On Inverness’s older mortise locks, we pull the cylinder, clean or replace the internal pins, and install a marine-grade cylinder body that resists exactly the corrosion Tomales Bay delivers every single week of the year. On a modern deadbolt, the process is faster: remove the old cylinder, drop in a new one, rekey to your existing key if you want, and you’re done.
For a standard knob or deadbolt cylinder swap at an Inverness cottage, expect to pay $85 to $160 depending on whether we’re replacing the cylinder housing or just re-pinning the existing one. A mortise cylinder on an original 1920s lock body runs a bit higher, $120 to $210, because the extraction is slower and the replacement cylinder often has to be ordered to match the obsolete format. We write the price down before we start, and that’s the price on your invoice. No exceptions, ever.
When a Cylinder Swap Saves the Lock
Most Inverness homeowners assume a seized lock means replacing the entire lockset. That’s true inland, where hardware is dry and the failure is mechanical wear. Here, the failure is usually corrosion in the cylinder itself, and the lock body is still perfectly serviceable. Swapping the cylinder costs half what a full replacement does and keeps your original hardware, which matters when the door and frame were cut for a mortise body that modern locks won’t fit.
Marine-Grade Cylinder Upgrades
For vacation homes and rentals that sit empty between visits, we recommend bump-resistant, marine-grade cylinders from Schlage or Kwikset with sealed internals and stainless steel pins. These cylinders are designed for exactly the kind of salt-saturated environment Inverness dishes out, and we stock them locally so you’re not waiting on a parts order from the East Coast. The upgrade typically adds $30 to $50 over a standard cylinder, and for a second home that sits vacant for weeks at a time, it pays for itself the first year.
Door Lock Installation in Inverness
Door Lock Installation in Inverness is where the fog really separates the honest locksmiths from the ones who just want to sell you a shiny new deadbolt. In a modern house with a straight, dry door, installing a new lock is a twenty-minute job. In a 1920s summer cottage on the western shore of Tomales Bay, the original door has been swelling and shrinking with coastal moisture for a hundred years, and a brand-new deadbolt often won’t align with the strike plate without cutting and re-mortising the frame. That’s the honest truth, and we tell it to you before we ever pick up a chisel.
A straightforward single-cylinder deadbolt installation on a modern Inverness vacation home runs $95 to $160 including the lock. If the door is original and warped, and we need to re-mortise the pocket or re-align the strike, expect $160 to $240 for the same job because the labor doubles and we’re protecting the integrity of a door you can’t easily replace. We’ll show you the written scope before cutting anything. Our techs carry Baldwin, Schlage, and Kwikset hardware on the truck, and we’ll match the existing finish on your interior hardware so a new lock doesn’t scream “replacement” on a century-old door.
Matching Period Hardware on Older Cottages
Inverness has more original hardware than almost any community in Marin, and tearing out a 1920s mortise lock because it’s sticky is a waste of money and character. We keep obsolete cylinder formats and period-appropriate faceplates in our local stock so a new cylinder can sit inside the original mortise body and look like it’s always been there. Your old keys quit working, your new keys work, and the door still looks like the door.
Vacation Rental Turnovers
If you run a short-term rental in Inverness, you already know the routine: guests leave, weeks pass, and the next guest arrives to a deadbolt that turns halfway and stops. We install marine-grade locksets and rekeyable smart deadbolts that survive the vacancy cycles, and we can schedule turnover-day rekeys so every new tenant gets fresh, working keys without you having to leave Point Reyes Station or travel in from the city. Call (910) 714-4287 and we’ll set up a schedule that works with your booking calendar.
Trusted Brands We Service in Inverness
Dunmore Locksmith is factory-authorized to install and service hardware from Schlage, Kwikset, Medeco, Baldwin, Yale, Mul-T-Lock, Sargent, and Abloy. We stock marine-grade cylinders and rekey kits specifically for Inverness customers, which matters when your 1950s cottage has a Baldwin mortise cylinder that’s been out of production since the Reagan administration. We don’t have to order it and make you wait a week; it’s on the truck or at our local supply point. From pin-tumbler residential locks to high-security commercial cylinders on vacation rental properties, we service what we install and we install what we stock. If you’re deciding between brands for a coastal environment, ask us about Schlage’s sealed-core deadbolts and Medeco’s corrosion-resistant cylinders. We’ll tell you what actually holds up in fog, not what the brochure says.
Common Change Door Locks Problems We See in Inverness Homes
- Salt-seized mortise cylinders. The fog off Tomales Bay carries salt that infiltrates the cylinder and oxidizes the tumblers. A key that turned fine in July won’t budge in December. We extract, clean, and re-pin these cylinders, or replace them with marine-grade units.
- Swollen original doors that throw off the deadbolt alignment. A 1920s cottage door that’s absorbed decades of coastal moisture sits differently in its frame than it did when it was hung. A new deadbolt won’t throw straight, so we re-mortise the pocket and re-align the strike rather than forcing a misaligned lock and shredding the bolt.
- Vacant-home corrosion creep. Second homes and vacation rentals in Inverness sit empty for weeks or months between visits, and that’s exactly when corrosion sets in. A deadbolt that worked perfectly when you locked up in August may be frozen solid when you return for the holidays. We recommend marine-grade cylinders and a periodic turn-and-lube visit for homes that sit empty.
- Obsolete cylinder formats on original hardware. Many Inverness cottages still have their original mortise lock bodies, and those bodies were built for cylinder formats that Schlage and Kwikset don’t make anymore. We match the obsolete format, re-pin the existing cylinder, and often save the original lock entirely.
Pricing for Change Door Locks in Inverness, CA
Here are real numbers for the jobs we do most often in Inverness. A cylinder swap on a standard deadbolt runs $85 to $160. A mortise cylinder replacement on an older home runs $120 to $210. A full deadbolt installation on a modern door runs $95 to $160, and if the door is original and warped, $160 to $240 because we’re re-mortising, not just drilling. Rekeying a standard knob or deadbolt runs $65 to $110. The price we write down before we start is the price on your invoice. If the job requires parts we didn’t anticipate, we stop and quote you the new number before touching anything else. Call (910) 714-4287 for a free estimate over the phone, and we’ll give you a range you can actually budget against.
We Also Serve Cities Near Inverness
Our Change Door Locks team covers Inverness and the surrounding West Marin and coastal North Bay communities, including Petaluma, Novato, Cotati, and Fairfax. If you own a vacation property in any of these towns or split your time between Inverness and anywhere else in Marin, one call to (910) 714-4287 handles the whole map. Same written pricing, same photo-badged technicians, same 365-day guarantee.
Serving Inverness, CA - Our Local Coverage Area
We’re based in the Inverness 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 Inverness
In most cases, we can rekey the existing mortise cylinder and keep your original lock body, which is almost always the better move on a 1910s to 1950s cottage door. The cylinder is what holds the pins, and if the lock body itself is intact, rekeying runs $65 to $110 and keeps your original hardware. If the cylinder is too corroded to re-pin, we replace just the cylinder rather than the whole lock. Call (910) 714-4287 and describe what’s on your door; we’ll tell you what’s salvageable before we ever schedule the visit.
Salt-laden fog off Tomales Bay infiltrates the cylinder and oxidizes the brass or steel tumblers inside. When the lock sits unused for weeks, that oxidation sets and the key won’t turn without extreme force. This is a failure mode we rarely see in inland Marin towns like Fairfax or San Anselmo, but it’s the defining lock problem in Inverness. The fix is a marine-grade cylinder with sealed internals, and you can get an exact quote by calling (910) 714-4287.
Almost always, yes. Inverness locks fail from corrosion far more often than from mechanical breakage, and a corroded cylinder can usually be opened non-destructively with the right extraction tools and a marine-grade replacement dropped in the same visit. We drilled exactly zero Inverness doors last year that we could have opened another way, and we’ll tell you before we drill anything. If you’re locked out at an Inverness rental tonight, call (910) 714-4287 and tell us what you’re seeing; we’ll walk you through whether it’s safe to keep turning the key or whether you should stop and wait for us.
We stock marine-grade cylinders and sealed-core deadbolts from Schlage, Kwikset, and Baldwin specifically for Inverness service, because standard hardware retailers in Marin don’t carry what this climate demands. These cylinders have stainless steel pins and sealed internal chambers that resist exactly the fog-driven corrosion that kills standard locks out here in a year or two. The upgrade is modest, usually $30 to $50 over a standard cylinder, and for a second home that sits vacant for weeks at a time, it’s the difference between a lock that works when you arrive and a lockout at midnight. Call (910) 714-4287 and we’ll spec the right cylinder for your specific door.
Yes, and Inverness vacation rentals are exactly the properties we set up most often. A master key system lets you carry one key that opens every unit on the property while we assign individual tenant keys that change with each turnover. We can build this around existing mortise cylinders as well as new Schlage or Kwikset hardware, so you’re not forced to rip out the original locks just to get a master system. We’ll quote the per-lock rekey and the master cylinder setup in writing before we start, and the system is covered by our 365-day guarantee. Call (910) 714-4287 and ask for a master key assessment on your Inverness property.
Call Dunmore Locksmith for Change Door Locks in Inverness
When your lock fails at a fog-soaked cottage on the Tomales Bay shore, or when you want a rental rekeyed before the next booking, you want a written price, a named technician, and a guarantee that means something. Dunmore Locksmith delivers all three. Call (910) 714-4287 now and you’ll get a live person, a straight answer, and an exact quote before anyone is dispatched. If it’s not done right, it’s covered for 365 days. If the repair fails, we return at no charge. That’s the Done Right Promise, and it applies to every lock we touch in Inverness.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Inverness and West Marin since 2007.