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.
Locksmith in Corte Madera, CA
A locksmith in Corte Madera deals with a specific kind of wear most Marin County locksmiths rarely see: salt air corrosion that eats lock hardware from the inside out. Homes here sit on San Francisco Bay flatlands, where marine moisture settles into cylinders, seizes springs, and shortens the working life of even quality deadbolts. Perry Osgood and the Dunmore Locksmith team handle the full range: lock changes, rekeying, repairs, and high-security upgrades. Call (910) 714-4287 any hour and a live person answers, not a voicemail.
Why Corte Madera Homes Are Different
Corte Madera’s residential stock is mostly 1950s to 1970s ranch and split-level homes built on bay-adjacent flatlands. Many still carry their original or first-generation replacement locksets, which means hardware that has absorbed decades of salt-laden condensation rolling off the tidal marshlands. The marine layer that stalls over the low-lying areas near Corte Madera Creek and the Corte Madera Ecological Reserve keeps humidity high year-round, not just in winter. We routinely open up deadbolts on west- and bay-facing doors where the keyway looks fine but the internal springs have oxidized to the point of failure.
That hidden corrosion is the defining characteristic of lock work in Corte Madera. A homeowner calls expecting a simple rekey and we find a six-year-old cylinder with swollen pin chambers and a strike plate flaking rust. The newer hillside construction and infill homes bring a different request: smart lock installation and high-security deadbolt upgrades. So the town runs on two tracks – legacy hardware that needs full replacement, and newer builds where owners want stronger hardware from the start.
Our Main Corte Madera Services
The two calls we hear most from Corte Madera homeowners are residential lock work and door lock repairs. Each service has its own detailed page, linked below.
Residential Locksmith in Corte Madera
Rekeying, lock changes, deadbolt replacements, and key duplication for Corte Madera houses come with one local constant: we check internal cylinder condition before touching the pins. In the flatlands near the marsh, even young locks can have salt-induced spring damage that makes rekeying a waste of your money. We tell you upfront if the hardware is worth saving or if replacement is the honest call. Full details are on our Residential Locksmith in Corte Madera page.

Door Lock Repair in Corte Madera
A sticking deadbolt or a key that turns but won’t throw the bolt is often a corrosion problem here, not an alignment problem. We disassemble, clean, lubricate where it will actually help, and replace springs, pins, or the entire cylinder when the salt air has done too much damage. Every repair carries the 365-Day Done Right Promise: if the repair fails, we return at no charge. See Door Lock Repair in Corte Madera for the repair specifics and pricing.

Change Door Locks in Corte Madera
Whether you’ve lost a key, moved into a new house, or ended a relationship, changing locks in Corte Madera usually means swapping the entire lockset rather than just the cylinder. The bayside housing stock carries older hardware that often can’t be rekeyed cleanly, so we price full replacement honestly from the start. We can match new Schlage or Kwikset hardware to your existing door prep and finish. Read the step-by-step options at Change Door Locks in Corte Madera.

Commercial Locksmith in Corte Madera
Corte Madera’s commercial spaces – offices along Tamalpais Drive, retail near Town Center, and the light-industrial units east of 101 – need lock systems that survive salt air and heavy daily use. We handle storefront deadbolts, panic bars, master key systems, and high-security cylinders from Medeco and Schlage. Commercial jobs are surveyed and scheduled, never dispatched blind. Get the full scope at Commercial Locksmith in Corte Madera.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Corte Madera
We install and service Yale, Schlage, Kwikset, and Medeco hardware, including high-security cylinders. We stock common parts for these brands on our trucks, so most Corte Madera repairs are completed same-day. See our brands for the full list of authorized lines.
Pricing for Locksmith in Corte Madera, CA
| Service | Typical range in Corte Madera |
|---|---|
| Rekey a standard knob or deadbolt | $180 – $340 |
| Change a door lock (parts included) | $225 – $475 |
| Door lock repair (sticking or jammed cylinder) | $150 – $320 |
| Deadbolt replacement (single-cylinder) | $240 – $500 |
| Smart lock installation | $350 – $700 |
| High-security cylinder upgrade | $340 – $680 |
| Commercial storefront deadbolt | $300 – $650 |
| Commercial rekey (per cylinder, 5+ locks) | $120 – $210 per cylinder |
In Corte Madera, corrosion damage is the main factor pushing a job toward the high end of these ranges: when a cylinder has internal rust or swollen pins, the labor goes up and parts are more often replaced than salvaged. The price we quote on the phone is the price on the invoice. We put it in writing before any work starts, and there is no call-out surcharge added when the technician arrives.
Neighborhoods We Serve in Corte Madera
We work across the full flatland and hillside map of Corte Madera, with most response times running 30 to 45 minutes depending on traffic across the 101 corridor.
- Marina Village
- Madera Gardens
- Chapman Park
- Corte Madera Keys
- Christmas Tree Hill
Service Area – Cities Near Corte Madera
Dunmore Locksmith covers Corte Madera plus the surrounding Marin County communities. If you’re in Larkspur, CA, Mill Valley, CA, Kentfield, CA, or San Rafael, CA, the same live-person phone line and written-price policy applies. Dispatch and scheduling are coordinated from the brand’s San Francisco Bay Area office, and crews serve Corte Madera locally.
Serving Corte Madera, CA - Our Local Coverage Area
We’re based in the Corte Madera 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 Locksmith in Corte Madera
Most Corte Madera calls are reached in 30 to 45 minutes. The bay-adjacent flatlands and the 101 access make this one of the more accessible parts of Marin, though afternoon traffic through the Sir Francis Drake interchange can add time. Call (910) 714-4287 and we’ll give you a real ETA, not a guess.
No permit is required for residential lock changes, rekeying, or deadbolt replacement in Corte Madera. Commercial properties with fire-rated doors or panic hardware may need to stay within existing code requirements, which we factor into any commercial job. Homeowners associations in some Corte Madera developments do enforce finish and hardware style rules, so we match what’s there.
We cover all of Corte Madera, from the bayside flats around Marina Village and the Ecological Reserve up to the hillside streets on Christmas Tree Hill. The marine corrosion pattern is worst on west- and bay-facing doors, but we see it everywhere in town. Every job gets written pricing and the 365-Day Done Right Promise.
For a free estimate on any lock work in Corte Madera, call (910) 714-4287. A live person answers, the price goes in writing before work begins, and every job is covered for a full year.
What happens when you call
- 1A real person answersNo phone trees - talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Corte Madera Customers Say
"The fact that he was background checked and carried ID made me comfortable letting him into the home. Changed out two worn deadbolts for new grade 1 ones."
- Brenda Z."We moved into a new house and wanted to know nobody else had a key. He rekeyed every exterior door and showed me how the pins work. Clear and patient."
- Anita P."Our storefront door lock was worn and tough to turn. He repaired it on the spot and left us extra keys cut properly."
- Camille W.






