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 Santa Rosa
Changing your door locks in Santa Rosa usually costs between $95 and $250 per door for a standard lock change, and $65 to $180 for a cylinder change. We can typically get a background-checked, photo-badged technician to most Santa Rosa neighborhoods in under an hour. You’ll get a written price before any work starts, and every repair carries our 365-Day Done Right Promise. Call (910) 714-4287 any hour, day or night, and a live person answers. Not a voicemail. Not a chatbot. A real human who can dispatch a named technician to your door.
Santa Rosa has a lock problem most Sonoma County cities don’t. Marine air pushing through the Petaluma Gap keeps west- and northwest-facing entry hardware in older Santa Rosa homes wet most of the year. Exterior lock cylinders seize and pit before the interior side shows any wear at all. That’s a corrosion pattern inland cities like Windsor or Rohnert Park rarely see, and it changes which hardware we recommend and how fast you should act when a lock starts sticking.
Why Dunmore Locksmith Is Santa Rosa’s Preferred Change Door Locks Company
Dunmore Locksmith has been part of the Threshold Group family since 2007, and our Change Door Locks team works in Santa Rosa every day. We’re not a call center that subcontracts to whoever answers. Every technician is background-checked, identity-verified, and sent to you by name and photo before the visit. They show a photo ID badge at the door before you open it. If someone shows up you weren’t told to expect, that visit is covered at no charge. That’s the Threshold Standard, and it’s written into how we operate.
Santa Rosa homeowners call us for a lot of reasons. Some just closed on a rebuilt home in Coffey Park and want the builder’s master key system eliminated. Others live in a 1960s Roseland tract house where the original deadbolt finally gave out. Perry Osgood leads our work in this area, and the team knows which hardware survives here and which fails within a few seasons. The phone rings, a live person answers, and a technician who knows Fountaingrove from Bennett Valley gets dispatched. The written price arrives before work begins. No surprises on the invoice.
Change Lock Cylinder in Santa Rosa
Change Lock Cylinder work in Santa Rosa means swapping the internal cylinder of an existing lock so your old keys stop working, without replacing the entire lock body. This is the right call when the lock itself is solid but the cylinder has seized from Petaluma Gap corrosion, when a key has been lost or copied too many times, or when someone who had a key shouldn’t have one anymore. In Santa Rosa, a standard cylinder change runs $65 to $180 depending on the brand and finish, and a high-security cylinder like Medeco or Mul-T-Lock runs from $180 to $350 installed.
What the job involves
We remove the old cylinder, install the new one, and often rekey the cylinder to match any existing keys you want to keep using. On older Santa Rosa homes, we check the tailpiece and strike alignment while we’re in there. West-facing doors near the Railroad Square historic district often have cylinders that look fine outside but are pitted inside from years of fog and rain.
When a cylinder change beats a full lock replacement
If your deadbolt throws and your latch works but the key won’t turn, the cylinder is usually the problem. That’s a $65 to $180 fix rather than a $150 to $250 full lock replacement. We’ll tell you which one you actually need. If the lock body is corroded through or the finish is flaking, we’ll say so and give you a written price for the full job before anything gets taken apart.
Door Lock Installation in Santa Rosa
Door Lock Installation in Santa Rosa means replacing an entire lock assembly, deadbolt, handle set, or knob lock with new hardware. This is the right move when the current lock is worn past repair, when a Coffey Park rebuild has a builder-grade Kwikset that’s loosened past the point of adjustment, or when you’re upgrading to something that can actually stand up to marine air. Standard door lock installation in Santa Rosa runs $95 to $250 per door, including the hardware for a good-quality Schlage or Kwikset deadbolt. High-security residential hardware runs higher.
What gets installed
We carry Schlage, Kwikset, and Yale hardware on the truck, and we can order Medeco, Baldwin, and other high-security lines fast. For Santa Rosa’s west-facing doors, we typically recommend stainless-steel or marine-grade ANSI Grade 1 deadbolts. They cost more up front, but they don’t seize and pit like brass hardware does after three or four winters of Petaluma Gap moisture.
When new hardware is the only honest answer
If the lock housing is cracked, the finish is corroded through, or the bolt won’t fully throw even after we’ve adjusted the frame, new hardware is cheaper than repeated repair calls. We’ll tell you straight. The written price covers the lock, the labor, and any faceplate or strike work needed to make it line up.
Trusted Brands We Service in Santa Rosa
Dunmore Locksmith is factory-authorized to install and service Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware. We stock common Schlage and Kwikset parts in our service vehicles so a standard lock change in Santa Rosa doesn’t wait on a parts run. For Medeco and high-security residential cylinders, we coordinate directly with the factory. That matters when you want a restricted keyway that can’t be duplicated at a hardware store, something we’ve fitted on more than a few Fountaingrove and Giotto-area wine country homes where barrel-storage outbuildings and vineyard gates fall under the same security umbrella.
Common Change Door Locks Problems We See in Santa Rosa Homes
- Seized exterior cylinders from Petaluma Gap moisture. Salt-laden fog keeps west- and northwest-facing lock hardware wet for much of the year. The pin and tumbler stack binds, the key won’t turn, and internal pitting ruins the cylinder before the interior side shows anything wrong. We see this constantly in older homes near Railroad Square and along the western edge of Bennett Valley.
- Builder-grade deadbolts drifting out of alignment in Coffey Park rebuilds. The 2018 – 2022 construction boom in Coffey Park filled the neighborhood with nearly identical Kwikset and Schlage hardware installed under contractor master-key systems. New wood frames swell through wet winters and shrink in summer heat, loosening deadbolts and causing them to hang up or fail to throw fully. Neighborhood-wide rekeying is one of our most common calls as new owners take possession.
- Corroded strike plates and latch faces on 1950s – 1980s tract homes. In Roseland and Bennett Valley, the original hardware has been exposed to decades of fog and seasonal frame movement. The strike plate corrodes, the latch face pits, and the deadbolt won’t seat cleanly. Sometimes a strike replacement fixes it. More often, the cylinder’s internal pins are also corroded and a full lock change makes more sense.
- Builder master-key systems that leave new homeowners unsure who has keys. After the Tubbs Fire rebuild, many Coffey Park homes went up under a single contractor’s master-key plan. Subcontractors, phase supervisors, and staging crews all had access at one point. We rekey or replace cylinders on these homes so new owners know exactly who can open their door and who cannot.
Pricing for Change Door Locks in Santa Rosa, CA
In Santa Rosa, a standard door lock change runs $95 to $250 per door, and a cylinder replacement runs $65 to $180. High-security residential cylinders from Medeco or Mul-T-Lock run $180 to $350 installed. What moves the price: the lock type and finish, whether we’re matching existing hardware, the condition of the door frame, and whether the lock is a simple knob-lock or a mortise set in an older Craftsman or Victorian. Every quote is delivered in writing before work begins, and the price you see is the price on the invoice. No call-out surcharge, no additions at the door. Call (910) 714-4287 for an exact quote on your Santa Rosa home. Estimates are free.
We Also Serve Cities Near Santa Rosa
Beyond Santa Rosa, our Change Door Locks team regularly works in Sebastopol, Windsor, Rohnert Park, and Cotati. The marine-corrosion pattern that hits Santa Rosa’s west-facing doors skews differently in each of those towns, and the hardware we recommend changes accordingly. If you’re in one of those areas, the same written-price and 365-day guarantee apply.
Serving Santa Rosa, CA - Our Local Coverage Area
We’re based in the Santa Rosa 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 Santa Rosa
The problem isn’t lack of lubrication, it’s corrosion. Lubricant washes out and the salt-laden marine air pushing through the Petaluma Gap keeps the internal pins and springs wet. Even after you spray the cylinder, the pitting inside the pin chambers means the key binds as soon as moisture returns. The durable fix is a marine-grade stainless deadbolt or a high-security cylinder from Schlage, Medeco, or Mul-T-Lock. We’ll match the finish to your hardware. Call (910) 714-4287 for a free assessment of your Santa Rosa door hardware and a written price to fix it right.
Yes, and that’s one of the most common calls we run in Santa Rosa. The post-fire rebuild in Coffey Park was done under contractor master-key systems, which means staging crews, subcontractors, and supervisors may all have held working keys. We’ll replace or rekey the cylinders so the old master keys are useless, then hand you the only copies that work. A standard rekey of a two-lock entry runs $65 to $180. Call (910) 714-4287 and we’ll send a named technician to your Coffey Park home in under an hour.
The mist and fog settle on those upper slopes, and that means stainless-steel or marine-grade hardware. A stainless ANSI Grade 1 deadbolt from Schlage or an Abloy high-security cylinder will outlast brass by years on a hill property. For vineyard gates and outbuildings, we typically recommend heavy-duty padlocks or a small access-control system keyed to the same restricted cylinder as the house. It’s a mixed residential and agricultural security need, and we quote it as a single written scope. Call (910) 714-4287 and ask for Perry Osgood’s team to survey the property.
Usually it’s both. Santa Rosa door frames swell visibly during wet winters and shrink in summer heat, and a deadbolt that lined up fine in August can bind by February. We’ll check the bolt and strike geometry first, then inspect the hinges and frame. Sometimes the fix is a striker adjustment and sometimes the threshold has settled. If the lock is also corroded, we’ll tell you and quote both repairs separately in writing, so you can decide. Call (910) 714-4287 and a technician will diagnose the exact problem at your Santa Rosa door.
If the key won’t turn, the keys are unaccounted for, or someone who shouldn’t have a key might, a cylinder change is enough and it runs $65 to $180 in Santa Rosa. If the bolt doesn’t throw, the finish is failing, the housing is cracked, or the lock has already been worked on multiple times, replacing the whole lock is the better long-term call at $95 to $250. We never push a full replacement when a cylinder swap solves the problem. Call (910) 714-4287 for a straight answer and a written price before we touch anything.
Written by Perry Osgood of Dunmore Locksmith, serving Santa Rosa homeowners with change door locks service since 2007 as part of the Threshold Group family.






