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 Novato
Door lock repair in Novato usually costs between $95 and $240 for common fixes like a sticking latch, a loose knob, or a cylinder that won’t turn, and we can typically reach most Novato neighborhoods within 45 to 60 minutes for urgent calls. If you’re in Hamilton Landing, Bel Marin Keys, Lynwood, or anywhere between downtown and Black Point, call us at (910) 714-4287 and we’ll send a technician you know by name before they knock. We’ve been repairing door hardware across Marin since 2007, and we’ve learned that Novato doors fail differently than doors ten miles south: salt air eats cylinders near the canals, older military-era mortise locks resist modern retrofits, and brand-new builds sometimes still open with the builder’s key. Whether you need a Commercial Locksmith - Novato for your business or home, that local knowledge is the difference between a repair that lasts a season and one that lasts a decade. That local knowledge is the difference between a repair that lasts a season and one that lasts a decade.
Why Dunmore Locksmith Is Novato’s Preferred Door Lock Repair Company
Dunmore Locksmith is the Marin County member of Threshold Group, and every technician who drives into Novato is background-checked, identity-verified, and sent to you by name and photo before they arrive. We know that opening your door to a locksmith is not a casual decision, and we built our entire operation around that reality. When you book with us, you get a written price before any work starts, a uniformed technician with a photo ID badge, and a 365-Day Done Right Promise on the repair itself. If the repair fails within a year, we return at no charge. No fine print, no argument.
Novato homeowners tell us the same thing again and again: they called us after a bad experience with a dispatch service that sent an unknown contractor with an hourly meter and a vague estimate. We don’t operate that way. Perry Osgood, who leads Dunmore Locksmith, set the standard personally: a live person answers the phone 24/7, the price you approve on the phone is the price on the invoice, and the person we describe is the person who shows up. That’s what makes us the trusted Residential Locksmith - Novato for people who want to feel safe before they turn the handle, not just after.
Our Door Lock Repair team stocks common cylinders, latches, and knobsets for the hardware found across Novato: Schlage and Kwikset for 1960s tract homes in Lynwood, period-compatible mortise components for Hamilton Landing, and corrosion-resistant hardware for Bel Marin Keys canal-front properties. We don’t make you wait for a part to ship from a warehouse in another state. We arrive prepared, and we leave the door working better than we found it.
Door Lock Latch Repair in Novato
Door Lock Latch Repair in Novato means fixing the internal spring-loaded bolt that slides into the strike plate when you close the door, and on most homes here it runs $95 to $165 including the replacement latch assembly and labor. A failing latch is the most common reason a Novato door won’t stay closed, won’t open from the outside, or needs to be slammed to catch. In older ranch-style homes in the Lynwood and Black Point neighborhoods, we frequently see latches that have worn down after fifty years of daily use, where the bolt is rounded and the strike plate has drifted out of alignment.
Novato’s temperature swings make latch problems worse in late fall and early winter. Overnight drops cause wood door frames to swell, which shifts the strike plate and puts extra pressure on the latch. If you’re noticing the door only catches when you pull it hard, the latch is likely already compromised.
Signs Your Latch Is Failing
A latch that needs repair usually gives you warning: the door bounces back when you close it, the knob turns but the bolt won’t retract fully, or you can see scrape marks on the strike plate. Call (910) 714-4287 before the latch fails entirely while you’re outside.
Door Knob Lock Repair in Novato
Door Knob Lock Repair in Novato covers the full knob assembly, from loose or spinning knobs to cylinders that won’t turn with the key, and a standard repair typically runs $110 to $240 depending on whether we’re re-pinning the cylinder or replacing the entire knobs. It’s a common call in Novato because so much of the housing stock is fifty to seventy years old, and original builder knobsets from the 1950s and 1960s were never designed to last this long. In Bel Marin Keys especially, brass and steel components inside the knob corrode from the salt-laden air, and the internal springs lose tension years before the visible parts look worn.
When a knob lock fails, the immediate risk is being locked out of your own home or, worse, being unable to secure the door from the inside. We take those calls seriously, and we carry Schlage, Kwikset, and Baldwin replacement parts in our Novato service vehicles so the repair doesn’t stretch across multiple days.
What We Check First in Novato Homes
Before we replace anything, our technician checks the door alignment, the backset measurement, and the condition of the cylinder. A door that’s out of square will destroy a new knob in months, and we’d rather tell you that now than sell you a part that fails next season.
Trusted Brands We Service in Novato
Dunmore Locksmith is factory-authorized to service and install hardware from Schlage, Kwikset, Medeco, and Abloy, which means we can do more than patch a problem: we can repair, rekey, or upgrade to match the original fit and finish. Our team stocks Schlage and Kwikset latch and knob components for same-day repairs across Novato, and we can order Medeco or Abloy high-security cylinders with rush delivery when a job calls for it. Whether you’re in a 1940s Hamilton Landing duplex that needs a period-compatible mortise repair or a 2015 build near downtown that came with builder-grade Kwikset, we carry or can source the right part and install it correctly. We also handle smart lock integration on existing hardware, so you don’t have to trade security for convenience.
Common Door Lock Repair Problems We See in Novato Homes
- Builder’s-key handover on new builds. Many Novato buyers assume their locks were rekeyed at closing, but on new construction the original builder’s key often still turns the cylinder until someone re-pins it. We fix this with a full rekey, and we verify in front of you that every old key is dead.
- Salt-driven corrosion in Bel Marin Keys. Lagoon air oxidizes lock cylinders and strike plates far faster than inland Marin conditions. A deadbolt that looks fine from the outside can seize internally from rust, leaving you locked out with no warning.
- Non-standard backset mortise locks at Hamilton Landing. The 1935 – 1942 military duplex doors were built with backset depths that don’t match modern deadbolt retrofits. A standard Schlage B60N won’t seat properly, and forcing one can damage the mortise pocket and run afoul of historic review requirements.
- Frame swelling and seasonal binding. Novato’s inland valley position means sharper overnight temperature drops than coastal Marin towns. Wood door frames swell in late fall and winter, shifting strike plates and making locks bind at the worst possible time: a cold, dark morning when you’re already running late.
An Unusual Novato-Specific Skillset: Hamilton Landing Mortise Locks
There is one Novato problem you won’t see on a generic locksmith FAQ: the non-standard backset mortise locks on the 1935 – 1942 military duplexes at Hamilton Landing. We were called to a 1938 duplex there where the homeowner couldn’t get their builder’s key to stop working after closing. The obvious fix, a modern deadbolt swap, was off the table because the original mortise lock body uses a backset depth that a Schlage B60N won’t seat into, and the historic review board requires hardware that matches the original profile. Our technician removed the cylinder, re-pinned it with period-compatible components, and confirmed in front of the owner that every builder’s key was fully deactivated. We also walked them through which slim-profile mortise replacements would pass review if they ever wanted an upgrade. That’s a Novato-only skill, and it’s one we’ve built over years of working on those specific doors.
We cover this on our Door Lock Repair in Novato resource page too, but the short version is simple: if you own a Hamilton Landing home, don’t let a generalist locksmith bore into that door. The moment a standard retrofit fails, you’re facing a damaged mortise pocket, a rejected historic review application, and a repair that costs three times the original job.
Pricing for Door Lock Repair in Novato, CA
You should know the numbers before you call, so here they are. A door lock latch repair in Novato runs $95 to $165. A door knob lock repair, which includes the cylinder and internal mechanism, runs $110 to $240. A full rekey to eliminate a builder’s key or an old roommate’s key runs $75 to $180 depending on how many cylinders are involved. If you’re in Bel Marin Keys and corrosion has reached the internal pins, expect the higher end of those ranges because the cylinder often needs full replacement rather than cleaning. We give you a written price before any work starts, and that price is the price on the invoice. There is no call-out surcharge added on arrival, no vague hourly meter, and no pressure to approve extras. Call (910) 714-4287 for a free estimate, and we’ll tell you over the phone what your repair will cost.
We Also Serve Cities Near Novato
Our crews serve Novato every day, and we also cover the surrounding North Bay communities: Fairfax, San Anselmo, Petaluma, and San Rafael. If you’re in one of those towns and need door lock repair, you’ll get the same upfront pricing, named technician, and 365-day guarantee we offer in Novato.
Serving Novato, CA - Our Local Coverage Area
We’re based in the Novato 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 Novato
No, you don’t need to replace the whole lock. The builder’s key still works because the cylinder was never re-pinned after construction, and a proper rekey, which runs $75 to $180 in Novato, permanently deactivates every old key without changing the hardware. Call (910) 714-4287 and we’ll verify in front of you that the builder’s key is dead before we leave.
Hamilton Landing’s 1935 – 1942 military duplex doors use a non-standard backset depth that a Schlage B60N won’t seat into, and forcing the retrofit can damage the mortise pocket and trigger a historic review violation. A Lynwood ranch home from the 1960s was built for modern backset dimensions, so the swap works there. In Hamilton Landing, you need a slim-profile mortise lock or a period-compatible cylinder rekey, which our technicians handle regularly. Call (910) 714-4287 for a free assessment.
No, in Bel Marin Keys that gritty feel is almost always salt-driven corrosion from the lagoon air, which oxidizes the internal pins and springs far faster than normal wear would. If you leave it, the cylinder will eventually seize completely. We recommend a full cylinder replacement or a corrosion-resistant lock upgrade, and we can do it same-day. Call (910) 714-4287 for an exact quote.
Novato’s inland valley position causes sharper overnight temperature drops than coastal Marin towns, and those drops make wood door frames swell and shift the strike plate, which causes the latch and bolt to bind. The fix is usually a strike plate adjustment and latch realignment, which runs $95 to $165 in Novato. Call (910) 714-4287 and we’ll have it working before the next cold morning.
Yes, in most cases we can integrate a smart lock with your existing door hardware without replacing the entire lockset, as long as the backset and cylinder are compatible. The exception is Hamilton Landing’s non-standard mortise doors, where we’ll recommend a specific slim-profile smart lock that passes historic review. Call (910) 714-4287 and we’ll tell you what’s possible for your specific door.
Call Dunmore Locksmith for Door Lock Repair in Novato
If your door latch is sticking, your builder’s key still works, your Bel Marin Keys lock is corroding, or your Hamilton Landing mortise won’t accept a standard deadbolt, call Dunmore Locksmith at (910) 714-4287. You’ll get a live person on the phone, a written price before any work begins, and a technician sent to you by name and photo. Every repair is covered for 365 days under our Done Right Promise. If it fails, we return at no charge. That’s what we mean when we say Novato should know exactly who is coming to the door before they open it.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Novato since 2007.






