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 Sonoma
Changing door locks in Sonoma typically costs $95 – $245 per lock for standard residential hardware, with smart lock and keypad installations running $180 – $420 depending on the system. Most jobs take under an hour on site, and our crews respond to Sonoma neighborhoods every day. The real question is what you’re trying to accomplish: keeping an ex out, securing a vacation rental between guests, or upgrading twenty-year-old hardware that’s starting to bind. Call (910) 714-4287 and we’ll give you a firm written price before anyone is dispatched.
We know Sonoma’s lock problems because we see them every week. Salt air moving up from San Pablo Bay, old mortise locks in historic Plaza buildings, smart lock systems on vacation rentals that see five different guests a month. Different homes, different hardware, different fixes. That’s why we send a background-checked technician to you by name and photo before the visit, with a written quote in hand.
Why Dunmore Locksmith Is Sonoma’s Preferred Change Door Locks Company
Dunmore Locksmith has served customers as part of the Threshold Group family since 2007. Every technician who drives into Sonoma carries a photo ID badge, wears a clean marked uniform, and is sent to you by name and photo before the visit. That’s the Threshold Standard, and it exists because we know you’re opening your door to a stranger. You should know exactly who’s coming before you turn the handle.
Our Change Door Locks team handles everything from a single deadbolt on a Boyes Hot Springs bungalow to full rekeying projects on multi-unit vacation rental properties. We stock Schlage, Kwikset, Medeco, and Yale hardware locally, so most jobs are completed same-day without waiting on parts. Every repair is covered by the 365-Day Done Right Promise: if something fails within a year, we return at no charge.
Perry Osgood, who leads Dunmore Locksmith, built the business around a simple rule: the price you’re quoted on the phone is the price on the invoice. No call-out surcharges added on arrival, no last-minute upsells. That’s why Sonoma homeowners and property managers keep our number saved.
Door Lock Change in Sonoma
Door Lock Change in Sonoma usually means one of three things: an old lock has worn out, someone moved out and you need new keys, or you want to upgrade to something smarter for a vacation rental. The job itself involves removing the existing lock body, checking the door prep, installing the new hardware, and testing the strike alignment. On older Sonoma homes with unusual door thicknesses or original mortise pockets, we’ll often need to route or modify the prep slightly to seat a modern lock without damaging the door.
Deadbolt Replacement
A single-cylinder deadbolt replacement in Sonoma runs $95 – $145 on doors with standard prep. If you’re coming from a 1970s-era lockset with a small backset, we may need to enlarge the bore. We carry retrofit kits for most Schlage and Kwikset models, so this rarely adds time or cost.
Smart Lock and Keypad Systems
For Sonoma vacation rental owners, we install keypad and smart lock systems that let you issue and revoke guest codes remotely. Standard smart lock installation runs $180 – $320 for Schlage Encode and Yale Assure models. On properties near the valley floor where Wi-Fi can be spotty, we recommend Z-Wave hubs for more reliable remote access.
Lock Change in Sonoma
Lock Change in Sonoma covers any swap of existing hardware for new: knob locks, lever sets, mortise locks, gate locks, and padlocks. If you bought a second home here and don’t know who still holds keys, a full lock change is the right call. We also handle commercial storefront lock changes in the Plaza district, where many buildings still use mortise locks that require specialized cylinders.
Full Home Lock Changes
Changing all exterior locks on a typical Sonoma three-bedroom home costs $285 – $520, assuming standard door prep. For historic homes with original mortise locksets, expect $140 – $260 per lock because we’re preserving the existing hardware and replacing only the cylinder and trim. That distinction matters: forcing a modern bored lock into a 1900s mortise pocket ruins the door.
Vacation Rental Turnover
We rekey or change locks on Sonoma vacation rentals every week. The economics are straightforward: rekeying costs less than changing hardware, but if the lock itself is failing or guests keep complaining about sticky entry, replacement is cheaper than refunding a night’s stay over a lockout. We’ll tell you straight which option fits your situation.
Trusted Brands We Service in Sonoma
We service and install Schlage, Kwikset, Medeco, and Yale hardware, and we stock common cylinders, springs, and strike plates for these brands in our service vehicles. Sonoma’s housing stock ranges from 1800s mortise locks to brand-new smart systems, so our trucks carry both. If you have a Medeco high-security lock on a wine cellar or outbuilding, we can rekey it and cut new keys on site. Most parts are available same-day for Sonoma customers, which means fewer return visits.
Common Change Door Locks Problems We See in Sonoma Homes
- Seized cylinders from salt air and winter rain. Locks on properties along Sonoma Highway and lower Sonoma Valley get a steady dose of marine air. Corrosion forms inside the cylinder, keys stick, and eventually the lock seizes. We replace with stainless steel or marine-grade cylinders that hold up years longer.
- Deadbolt binding after the first October storms. Wooden door frames in older Craftsman and ranch homes swell when the rains arrive. A deadbolt that worked fine in September won’t throw in November. We realign the strike and sometimes rebore the strike plate, addressing the swelling rather than just forcing the bolt.
- Original mortise locks jamming in Plaza-area buildings. Those 1800s and early 1900s commercial and residential buildings around Sonoma Plaza still have skeleton-key mechanisms. When a modern key is forced or a cylinder is badly worn, the mechanism binds. We open and rekey these non-destructively, preserving the original hardware.
- Agricultural padlocks and gate systems failing on vineyard estates. Properties off Napa Road and rural Sonoma Highway often run large agricultural padlocks or electronic gate systems. Standard residential hardware doesn’t survive coastal moisture and daily farm use. We fit commercial-grade stainless padlocks and weather-sealed gate hardware designed for that environment.
Pricing for Change Door Locks in Sonoma, CA
Here’s the honest range: standard deadbolt or knob lock change runs $95 – $145 per lock. Rekeying a standard cylinder runs $18 – $45 per lock when done as part of a lock change. Smart lock installation lands between $180 – $420 depending on brand and wiring. Mortise lock service on historic buildings runs $140 – $260 per lock. Commercial ag gates and vineyard padlock systems are quoted per project after we assess the hardware. The price we give you on the phone is the full price, in writing, before any work starts. There’s no call-out surcharge added when the technician arrives. Call (910) 714-4287 for a free estimate.
We Also Serve Cities Near Sonoma
Beyond Sonoma itself, our technicians regularly cover Boyes Hot Springs, Petaluma, Novato, and Cotati. If you manage properties across the valley or have a rental in town and a home up in Petaluma, one call (910) 714-4287 handles all of it. We quote each property separately so you know exactly what you’re paying for.
Serving Sonoma, CA - Our Local Coverage Area
We’re based in the Sonoma 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 Sonoma
Yes. We install marine-grade smart lock systems with sealed electronics and stainless steel internal components specifically because standard keypads corrode in Sonoma’s coastal-influenced air. The Schlage Encode and Yale Assure lines both hold up well here when paired with weather-sealed strike plates. For rentals, we configure remote code management so you can issue and revoke guest access from your phone. Call (910) 714-4287 and we’ll recommend the right system for your property’s exposure.
Yes, and that’s the right instinct. We open these locks non-destructively, extract the cylinder, and rekey the internal pins while preserving the original mortise body and trim. Forcing a modern key into a worn skeleton-key mechanism is what causes most of the damage we see in Sonoma Plaza buildings. Rekeying a historic mortise lock typically runs $140 – $260. Call (910) 714-4287 and we’ll assess your specific lock before touching anything.
It’s one of the most common seasonal calls we get. Sonoma Valley’s dry summers leave wooden door frames shrunken, and the first October or November storms make them swell. The deadbolt no longer lines up with the strike plate. Fixing it properly means realigning the strike or slightly reboring it, not just shaving the bolt. A standard strike realignment in Sonoma runs $60 – $110. Call (910) 714-4287 before the next storm cycle.
Yes. We stock commercial-grade stainless padlocks, gate hinge hardware, and weather-sealed electronic gate components for Sonoma’s vineyard properties. These are not residential locks and they fail differently: pitting, internal corrosion, and failed gate sensors. We quote ag property work per project after assessing the hardware on site. A written price comes first, always. Call (910) 714-4287 to schedule an assessment.
Rekeying changes the internal pins so old keys no longer work, while the external hardware stays. Changing the lock replaces the entire unit. For a second home where the hardware is in good shape, rekeying is cheaper: $18 – $45 per cylinder. If the hardware is worn, corroded, or you want smart features, a full lock change at $95 – $245 per lock is the better long-term answer. We’ll inspect and tell you honestly which fits. Call (910) 714-4287 for a free phone consultation.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Sonoma since 2007.






