Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-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.
Get your free estimateLocksmith in Mill Valley, CA
Rekeying locks is the service Mill Valley homeowners call us for most often, and the reason usually comes down to the houses themselves. Older redwood and shingle-sided homes on hillside lots still carry original mortise locksets and narrow-gauge door prep that big-box hardware can’t match. The damp, fog-influenced winters here accelerate corrosion in door frames and lock bodies, which means a rekey often includes stabilizing the strike plate and cleaning the cylinder rather than just swapping pins. If you need your locks changed fast, call (877) 265-4385.
Why Mill Valley Homes Are Different
Mill Valley’s housing stock is dominated by early-to-mid 20th century construction: Craftsman bungalows, redwood-sided cottages, and shingle-style homes tucked into steep, wooded lots. Many of these houses still have their original mortise locksets, which operate differently from the standard bored cylindrical locks found in newer construction. The lock body is larger, the keyway sits lower in the door, and the internal springs and levers are often decades old. A rekey on a 1920s mortise lock in Old Mill or Sycamore typically means stripping away layers of paint, extracting the cylinder, and verifying the spindle and trim still align before new pins go in.
Marin’s fog and redwood canopy create conditions that punish exterior hardware. Moisture settles into door frames, rust forms on strike plates, and wood around the hinges swells and contracts. In Mill Valley we regularly find door frames that have shifted enough to throw the latch out of alignment with the strike. Rekeying the cylinder solves the access concern, but if the frame has moved, the door may still bind. Part of our job on these houses is checking that the lock is not just rekeyed but actually seated correctly in a frame that has to survive damp winters and the occasional seismic shake.
Hillside access also changes the work. Steep driveways, narrow stair paths, and doors that open outward are common here, and out-swinging entries need hardware that resists exposure and forced entry from the hinge side. We carry parts sized for narrow-gauge door prep and older backset dimensions because that is what Mill Valley doors demand.
Styles & brands we work with
Our Main Mill Valley Services
Most calls from Mill Valley come in for two reasons: car key trouble and emergency lockouts. Both have their own detailed pages, but here is what matters for local homeowners.
Car Key Replacement in Mill Valley
Mill Valley’s steep driveways and carport setups mean a lost or snapped car key can leave you stranded before you even get to the road. We cut and program replacement keys for a range of vehicles without a trip to the dealership. The equipment travels to you, whether you are off East Blithedale or up in the Cascade Canyon area. See Car Key Replacement in Mill Valley for full details on key types and programming.
Emergency Locksmith in Mill Valley
Locked out at night on a Mill Valley hillside is not the same as a lockout in a flat suburban neighborhood. The temperature drops, the fog rolls in, and you need someone who knows the roads. We carry tools sized for older mortise locks and newer deadbolts, so the first trip usually solves it. Read Emergency Locksmith in Mill Valley for response specifics and what to expect.
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.
Rekey Locks in Mill Valley
Rekeying in Mill Valley is less about replacing hardware and more about preserving it. Homes from the 1920s through the 1950s often have mortise locksets or narrow-gauge door prep that modern off-the-shelf hardware will not fit without cutting the door. Rather than enlarge a 90-year-old door for a new lock, we rekey the cylinder pins so the existing lock works with a new key. That keeps character intact, keeps the bill down, and restores security in one visit. If you have bought a home, changed tenants, or ended a relationship, see our full writeup on Rekey Locks for the process in depth.
Lock Rekey
Signs you need it
You have just moved in, you have given out more keys than you can account for, or a contractor, cleaner, or ex-partner still has access.
What it costs in Mill Valley
A standard cylinder rekey typically runs $20 to $35 per cylinder, plus the service call fee.
How we do it
We remove the cylinder, replace the pins with a new set matched to a fresh key, and test the lock in the door before we leave.
Rekey Service
Signs you need it
You manage a rental in the 94941 or 94942 ZIP, you have multiple entry doors, or you want all locks in the house working from a single key.
What it costs in Mill Valley
Rekeying all entry doors at a residence generally falls between $65 and $180, depending on how many cylinders are involved.
How we do it
We work through each door in sequence, confirm the new key operates every cylinder, and adjust any misaligned strike plates that the rekey exposes.
Keyed Alike
Signs you need it
Your front door, back door, and side gate each require a separate key, and you would rather carry one key for the whole property.
What it costs in Mill Valley
Keying multiple locks alike starts at the per-cylinder rekey rate of $20 to $35 each, with total cost based on cylinder count.
How we do it
We pin all cylinders to the same key cuts, verify each lock throws correctly, and hand you the number of keys you need on the spot.
What Rekey Locks Costs in Mill Valley
| Item | Typical range in Mill Valley |
|---|---|
| Rekey per cylinder | $20 – $35 |
| Service call / trip fee | $19 – $40 |
| Full house rekey (all entry doors) | $65 – $180 |
Is rekeying better than replacing locks in Mill Valley?
On older Mill Valley homes with mortise locks or non-standard door prep, rekeying is almost always the better first move. You keep the original hardware, avoid cutting into a vintage door, and get new-key security at a third of replacement cost.
Can you rekey my 1920s mortise lock without damaging the door?
That is the work we do most in Old Mill and Sycamore. We strip the cylinder, clean the pins and springs, install new pinning, and reinstall the original trim without altering the door or the lockset body.
Brands We Service in Mill Valley
We stock parts and key blanks for the locks already in Mill Valley homes, especially Schlage, Baldwin, and Sargent. For clients upgrading security, we work with Mul-T-Lock and Abloy high-security cylinders, which means most jobs finish same-day. See our brands for the full eight-brand breakdown.
Pricing for Locksmith in Mill Valley, CA
| Service | Typical range in Mill Valley |
|---|---|
| Standard deadbolt rekey | $20 – $35 per cylinder |
| Service call / trip fee | $19 – $40 |
| Purchase and install a standard deadbolt | $120 – $170 |
| Purchase and install a Grade 1 deadbolt (high-security) | $200 – $300 |
| Car key replacement (basic) | $150 – $250 |
| Car key replacement (key fob) | $150 – $450 |
| Car key replacement (push-button start / proximity) | $250 – $600 |
| Full house rekey | $65 – $180 |
Mill Valley pricing climbs when a job involves a 1920s mortise lock that has been painted over several times, because the cylinder extraction and cleaning take longer. The quote you get on the phone is the price on the invoice: no surprise fees when the technician arrives, and no dispatch charge beyond the stated service call fee.
Neighborhoods We Serve in Mill Valley
We cover both Mill Valley ZIP codes, 94941 and 94942, from downtown flats to the steeper lanes where driveways and entry doors demand patience. Typical response for emergency calls in Mill Valley is under an hour, depending on traffic on East Blithedale and the time of day.
- Old Mill
- Sycamore
- Tamalpais Valley
- Homestead Valley
- Cascade Canyon
Service Area – Cities Near Mill Valley
We take jobs throughout central Marin. If you are in Tamalpais Valley, CA or Tamalpais-Homestead Valley, CA, the same local knowledge of hillside homes and older hardware applies. We also serve Corte Madera, CA and Larkspur, CA for rekey and lock replacement work.
Serving Mill Valley, CA — Our Local Coverage Area
We’re based in the Mill Valley 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 Mill Valley
Most emergency jobs in Mill Valley are reached within 45 to 60 minutes. Steep hillside roads and narrow driveways slow some approaches, but our technicians know the terrain and plan routes accordingly. Call (877) 265-4385 and we can give you an honest ETA for your street.
Rekeying your own door does not require a permit or HOA approval anywhere in Mill Valley. Some condo buildings and shared-entry complexes may have master-key systems, and in those cases we coordinate with the property manager to preserve the master key function while changing your unit key.
Yes. We cover all of Mill Valley, including downtown 94941 and the hillside and canyon areas in 94942. The same technician and the same upfront pricing apply across both ZIP codes.
Mill Valley doors are worth doing right the first time. For rekeying, car key replacement, or an emergency lockout, call Cypress Lock & Key at (877) 265-4385 and talk through the job before anyone is dispatched. The estimate is free, the price is fixed, and the work is done by someone who knows older Marin homes.
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 Mill Valley Customers Say
"Installed a smart lock and actually set up the app and the codes with me instead of leaving me to figure it out from a leaflet."
— Renee Doyle"Quoted a price on the phone and honored it. After the last locksmith I called, that alone is worth a review."
— Sarah Vaughn"Got me back in and the price was fair for the hour. He did arrive closer to 45 minutes than the 20 he estimated, which felt long standing outside, but he was honest that traffic was the problem."
— Marcus Prince