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 Door Lock Repair Across Tiburon
Door lock repair in Tiburon usually costs between $95 and $280 depending on what has failed, and most jobs are completed the same day we take the call. If a key has snapped off inside a salt-corroded deadbolt or a sliding door latch no longer catches, we get a technician to your peninsula address fast. Call (910) 714-4287 and you’ll speak with a live person, not a call center or chatbot.
Tiburon is not an easy place to be without a working lock. The hillside lots off Tiburon Boulevard, the waterfront estates facing Richardson Bay, and the steep driveways in Belvedere all create unique demands on door hardware. Salt air works on cylinders year-round. We know how these locks fail here because we work on them every week.
Why Dunmore Locksmith Is Tiburon’s Preferred Door Lock Repair Company
Commercial Locksmith - Tiburon clients and homeowners call us because we tell them exactly who is coming before they open the door. Every technician is background-checked, identity-verified, and sent to you by name and photo before the visit. When the tech arrives, they wear a clean uniform and show a photo ID badge at the door. That is the Threshold Standard, and it has been how we operate since 2007 as part of the Threshold Group family of independent local locksmith businesses.
We carry parts for Schlage, Kwikset, Medeco, Mul-T-Lock, and Baldwin hardware on the truck, so a Door Lock Repair job on a hillside ranch rarely requires a second trip. Our dispatchers coordinate from the San Francisco Bay Area office, and our crews know the roads, the marine layer, and the specific ways salt air attacks lock cylinders on this peninsula. The name Dunmore comes from old words for a great fort: a stronghold built to keep what is inside safe. That is what we do for Tiburon homes.
Broken Key Extractor in Tiburon
A broken key extractor is the tool we use when a key snaps inside a lock cylinder, and in Tiburon it is one of our most frequent service calls. Salt-laden air off Richardson Bay corrodes the internal pins and springs over months, the key binds, and under normal turning pressure the brass key snaps at the weak point. You are left with a deadbolt that will not turn and a broken key stuck in the keyway.
How We Remove a Broken Key Without Damaging the Lock
Our technician uses a non-destructive extraction kit with hooked probes and spiral extractors to pull the broken piece from the keyway. If the cylinder is too corroded to salvage, we replace it and rekey the lock to your existing key if you want to keep using the same one. No drilling is needed in most cases, and the repair is usually complete in under an hour.
What It Costs on the Tiburon Peninsula
A standard broken key extraction from a deadbolt or doorknob in Tiburon typically runs $95 to $160. If the cylinder itself is seized beyond repair and needs replacement plus rekeying, the range moves to $180 to $280 including parts and labor. We put the full price in writing before any work begins, and that written price is the invoice price.
Sliding Door Lock Repair in Tiburon
Sliding door lock repair in Tiburon is a special case because so many hillside and waterfront homes rely on patio sliders for primary access to decks, terraces, and bay-facing backyards. The locks on these doors are exposed to direct salt fog, and the narrow latch mechanisms corrode faster than standard deadbolts. A lock that worked fine during a summer weekend visit can refuse to engage by February.
Signs a Sliding Door Lock Has Failed
The handle turns but the latch does not seat. The door locks but still lifts or slides a few millimeters. The key cylinder on the slider accepts the key but will not rotate. When we see these on Tiburon calls, the usual cause is internal oxidation inside the mortise latch body, which sits directly in the path of salt-laden air.
Repair Versus Replacement on Waterfront Sliders
We repair what is repairable, and we will tell you plainly if replacement is cheaper in the long run. A sliding door lock repair on the Tiburon peninsula generally costs $120 to $220. If you are replacing a corroded latch with a new multipoint or hook-bolt assembly, expect $220 to $350 depending on the manufacturer. Written price first, every time.
Trusted Brands We Service in Tiburon
We service and install Schlage, Kwikset, and Medeco hardware across Tiburon and Belvedere, and we stock common replacement cylinders, latches, and strike plates for those brands on the truck. Medeco high-security cylinders are a frequent upgrade on the waterfront, where owners want drill-resistant and bump-resistant protection that stands up to salt air better than commodity hardware. If you have Abloy or Mul-T-Lock on a hillside estate, our techs are factory-authorized to work on those lines too. Same-visit repair is the goal on every call.
Common Door Lock Repair Problems We See in Tiburon Homes
- Salt-air cylinder seizure: The marine layer rolling off Richardson Bay deposits fine salt particles that oxidize lock pins and springs. A deadbolt that worked in September may be frozen solid by January, especially on doors facing the water.
- Detached outbuilding and gate locks ignored for weeks: Weekend homeowners often have a workshop, detached garage, and side gate that go unused between visits. Each one is a separate lock exposed to fog. When you finally need in, the key snaps or the cylinder will not turn.
- Keyway degradation from coastal humidity: The same salt fog that seizes cylinders also abrades the keyway itself, making keys stick, bind, or break. We see this most on 1970s and 80s hillside homes off Tiburon Boulevard with original Baldwin and Schlage locks.
- Mortise locks on legacy homes oxidizing internally: Many mid-century ranch homes and custom builds on steep lots have mortise locks that cannot be swapped for a standard cylindrical deadbolt without door modification. When these sit unused for months, internal oxidation turns a simple rekey into a full lock body replacement.
Pricing for Door Lock Repair in Tiburon, CA
You should know before you call. A standard Door Lock Repair visit in Tiburon runs $95 to $160 for labor, with common parts adding $20 to $120 depending on the hardware. Rekeying a single knob or deadbolt costs $85 to $130. A full cylinder replacement with rekeying on a corroded waterfront deadbolt typically lands between $180 and $280. Keying multiple outbuildings, gates, and doors alike in one visit runs $45 to $75 per additional cylinder after the first. There is no call-out surcharge added on arrival, and the written quote you approve before work starts is the final invoice price. Call (910) 714-4287 and we will give you an exact number before anyone is dispatched.
We Also Serve Cities Near Tiburon
Tiburon is our focus, but our crews regularly handle lock repair for clients across the Bay Area. If you are searching for Door Lock Repair in Tiburon, you may also need service in San Francisco, San Jose, or other nearby communities. Our service area includes Los Angeles and San Diego for clients with properties on both ends of the state, though the bulk of our peninsula work stays right here in Marin County.
Serving Tiburon, CA - Our Local Coverage Area
We’re based in the Tiburon 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 Door Lock Repair in Tiburon
Yes. In most cases we remove a broken key from a seized gate lock using non-destructive extraction tools, then re-lubricate or replace the corroded cylinder and rekey it to your existing key. Drilling is a last resort. On one call to a hillside ranch off Tiburon Boulevard, our tech extracted a broken key from a frozen Schlage deadbolt on a detached workshop, pulled the corroded pin and tumbler set from the salt-exposed cylinder, and rekeyed the workshop and main house gate to a single master key system so the owner could stop carrying three separate keys. Call (910) 714-4287 for a free estimate.
Yes, and on multi-structure Tiburon lots this is exactly what we recommend. We can key every exterior door, gate, workshop, and detached garage to a single key, or we can set up a master key system if you want one key for everything and a separate key for a tenant, housekeeper, or contractor. We rekey each lock and provide as many copies as you need, all in one service trip. Pricing depends on the number of cylinders, and the written quote you approve is the final price.
Because Tiburon sits on a peninsula with San Francisco Bay on three sides, and the salt-laden marine air off Richardson Bay corrodes lock cylinders, keyways, and exposed deadbolt faces far faster than the drier, more protected air in inland Marin. A lock in San Rafael may go a decade without service. The same lock on a Tiburon waterfront property can seize in two or three years. Morning fog deposits salt, and the salt works on brass and steel internals even when you are not using the door.
If the property sits empty for stretches, yes. A high-security deadbolt from Medeco, Mul-T-Lock, or Schlage Primus resists bumping and picking, and the cylinders hold up better against salt air than standard brass cylinders. The ball-bearing hardened inserts and stronger springs resist the corrosion that snaps keys and seizes standard locks. The upgrade typically runs $220 to $340 per door including installation, and it is one of the most common requests we receive on weekend homes.
Usually yes. We rebuild mortise lock bodies by cleaning corroded internals, replacing worn springs and levers, and fitting new cylinders where the keyway has degraded. Because original mortise locks on 1970s Tiburon custom builds are often higher-quality than anything you would buy today, repair is frequently the better route. We will tell you honestly if the lock body is beyond salvage, and the repair is covered by the 365-Day Done Right Promise: if the repair fails within a year, we return at no charge.
Contact Dunmore Locksmith in Tiburon
Call (910) 714-4287 now to schedule door lock repair anywhere on the Tiburon peninsula. A live person answers 24 hours a day, every day of the year. We will give you a written price before anyone is dispatched, and the technician we send will arrive in a marked uniform with a photo ID badge shown at the door. Every repair is covered by the 365-Day Done Right Promise. If it is not done right, we return at no charge.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Tiburon and the San Francisco Bay Area since 2007.