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 Cotati
Changing door locks in Cotati usually costs between $95 and $260 for a standard knob or deadbolt swap, and most jobs are completed the same day. If you’ve just bought a home near the historic hexagonal downtown, lost a key, or need to rekey between Sonoma State renters, a locksmith should be able to get you sorted within a few hours. Our Change Door Locks team knows Cotati’s housing stock well, including the older bungalows and the high-turnover rentals near the university. Call (910) 714-4287 and you’ll speak to a live person who can quote the full price over the phone before anyone is dispatched.
Why Dunmore Locksmith Is Cotati’s Preferred Change Door Locks Company
Cotati is not Rohnert Park. The housing here is older, the rental churn is constant, and the locks we see have often been ignored for years. Dunmore Locksmith has been serving customers since 2007 under the Threshold Group umbrella, and the technicians we send into Cotati are background-checked, identity-verified, and arrive in clean marked uniforms with a photo ID badge. You’ll get the technician’s name and photo before the visit, so you know exactly who to expect at the door.
We work across all of Cotati, from the streets around Cotati Creek Critters and La Plaza Park to the apartment buildings and duplexes near Sonoma State University. Response time to most Cotati neighborhoods is under an hour. Perry Osgood leads the team, and every job carries our 365-Day Done Right Promise in writing. If a repair fails within a year, we return at no charge.
Patio Door Lock Change in Cotati
A patio door lock change in Cotati usually runs $120 to $240, and it is one of the most common calls we get from the city’s older homes and rentals. Sliding patio doors in 1950s and 1960s wood-frame houses often have original or once-replaced hardware that was never designed for the salt-laden air that comes through the Petaluma Wind Gap. The result is a track that binds and a lock that no longer secures the door against the frame.
Sliding Door Handle and Lock Replacement
When the handle snaps or the lock cylinder refuses to turn, we replace the assembly with hardware that actually fits the door’s existing cutouts. On some older Cotati patios, the mounting holes are no longer standard, and we’ll need to re-drill or install a surface-mount lock. We quote the full price in writing before starting, and the 365-Day Done Right Promise applies to every patio lock we install.
Rekeying a Patio Door to Match the House Key
Most Cotati landlords and homeowners want one key for everything. We can rekey a patio door cylinder to match your existing house key, which usually costs less than a full replacement. This is a frequent request at tenant turnover, when a landlord wants the new SSU renter to have a single key that works the front, back, and patio doors.
Door Lock Change in Cotati
A door lock change in Cotati typically runs $95 to $180 for a standard knob or deadbolt swap, with high-security hardware from Medeco or Yale running higher. The older homes near the hexagonal downtown grid often have vintage mortise locks that need specialty parts or a full conversion to a modern cylindrical lock. We do both.
Deadbolt Replacement on Hollow-Core Doors
Many Cotati rentals built between the 1950s and 1970s have hollow-core doors with builder-grade locksets. A rushed lock change on these doors can split the stile if the new hardware has a different backset or faceplate. We reinforce the door when needed and make sure the strike aligns so the deadbolt actually throws fully. The door stays intact, and the tenant gets a lock that works.
Whole-House Lock Change After a Tenant Moves Out
Rental turnover near Sonoma State University is constant. A typical call starts with a landlord who needs front, back, and garage locks changed or rekeyed in a single visit. We do a full perimeter pass and confirm every old key is dead, then verify the new keys work on all doors. The written quote covers the whole job before we begin.
Trusted Brands We Service in Cotati
Dunmore Locksmith is factory-authorized to service Schlage, Kwikset, Medeco, Yale, and Baldwin hardware. We stock common cylinders, pins, and strike plates for these brands locally, so a standard Cotati lock change rarely needs a second visit. When a vintage mortise or a high-security Medeco cylinder needs a specialty part, we source it fast and keep you informed on timing. Our techs are trained on residential pin-tumbler work through commercial high-security systems, and we’ll tell you plainly whether a lock is worth rekeying or should be replaced.
Common Change Door Locks Problems We See in Cotati Homes
- Worn cylinders packed with broken pins. Because so many Cotati rentals are owned by individual landlords rather than property managers, deadbolts often go unrekeyed through three or four SSU tenant turnovers. By the time we arrive, the cylinder is often so worn that it jams instead of accepting new pins.
- Coastal corrosion on exterior hardware. The Petaluma Wind Gap funnels cool, salt-laden air across Cotati year-round. Strike plates, hinges, and pin-tumbler cylinders rust and pit faster here than in drier parts of Sonoma County, which is why we see so many sticky, seized locks.
- Vintage mortise locks with no off-the-shelf replacement. The older Craftsman bungalows around the historic downtown grid often still have original mortise lock bodies. A standard cylinder swap won’t fit, and the job stalls without a specialty part or a full lock change.
- Split stiles on hollow-core rental doors. Rushed lock changes on low-grade doors end with cracked stiles and a misaligned strike. We check the door’s backset and grade before choosing hardware, so the door you own stays intact.
Pricing for Change Door Locks in Cotati, CA
Here’s what Cotati homeowners and landlords can expect. A standard knob or deadbolt lock change runs $95 to $180. A patio door lock change runs $120 to $240. Rekeying a single cylinder runs $25 to $45 per lock, with a typical trip charge built into the per-job quote. High-security hardware from Medeco or a full mortise lock restoration will push toward $300 or more depending on parts. Every price is put in writing before work starts, and that written price is the price on the invoice. There is no call-out surcharge added on arrival. Call (910) 714-4287 for a free estimate over the phone.
We Also Serve Cities Near Cotati
Our team covers Cotati and the surrounding Sonoma County communities regularly. We work in Rohnert Park, Petaluma, Santa Rosa, and Sebastopol, with the same written pricing and 365-Day Done Right Promise on every job. If you own rentals in more than one of these cities, one call gets all the locks changed.
Serving Cotati, CA - Our Local Coverage Area
We’re based in the Cotati 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 Cotati
Not always. A sticking key often means the cylinder is packed with broken pins from years of copied keys, or corroded from the Petaluma Wind Gap air. We can usually rekey the existing cylinder and free the stuck pins for $25 to $45 per lock, which is cheaper than a full replacement. If the cylinder is too far gone, we’ll tell you before doing any work. Call (910) 714-4287 for an exact quote.
Yes. Hollow-core doors from the 1950s to 1970s are common in Cotati rentals, and they split easily if the new hardware doesn’t match the existing backset and faceplate. We measure before drilling, reinforce when necessary, and align the strike so the deadbolt throws fully. The door stays intact. Call (910) 714-4287 and we’ll talk through the job.
It means each tenant has a key that only opens their unit, while a building owner or manager holds one master key that opens every door. For older Cotati buildings with converted downtown units, this usually requires a survey visit to assess existing cylinders and door prep before we quote a per-lock price. We provide a written scope and a flat per-lock rate before any work starts.
Cotati sits squarely in the Petaluma Wind Gap, where cool, salt-laden marine air moves through the city year-round. That coastal moisture accelerates rust and pitting inside pin-tumbler cylinders and on exterior strike plates and hinges, faster than in drier eastern Santa Rosa neighborhoods. We see the pattern in nearly every older Cotati home we service.
Yes. We install bump-resistant cylinders and smart locks from Schlage, Kwikset, and Yale, and we’ll be straight with you about which hardware actually holds up on Cotati’s older wood-frame doors. The price goes in writing before any work starts, and the 365-Day Done Right Promise covers the install. Call (910) 714-4287 for a free estimate.
Written by Perry Osgood, Owner at Dunmore Locksmith, part of the Threshold Group family serving Cotati and Sonoma County since 2007.