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 North Fair Oaks
If you need a door lock changed or a cylinder swapped in North Fair Oaks, a locksmith from Dunmore Locksmith can usually reach your door in under an hour, with the full price in writing before any work begins. We work throughout this unincorporated San Mateo County community every week, from the fourplexes off Bay Road to the stucco bungalows near Middlefield Road. Most lock changes here take 30 to 60 minutes on site. Call (910) 714-4287 and a live person answers, any hour, any day.
Why Dunmore Locksmith Is North Fair Oaks’s Preferred Change Door Locks Company
North Fair Oaks is not a city. It is county land, patrolled by the San Mateo County Sheriff’s Department, with no municipal licensing layer for locksmiths. That changes who you should call. We hold county registration, and the Sheriff’s office sometimes refers non-emergency lockout callers straight to a short list of county-registered contractors. Being on that list matters here in a way it would not matter one block over in incorporated Redwood City.
Every technician we send into North Fair Oaks is background-checked and identity-verified under what we call the Threshold Standard. You get the tech’s name and photo before they arrive. When they knock, they show a photo ID badge at the door. If anyone shows up who you were not told to expect, that visit is covered at no charge. That is a written policy, not a slogan.
We have been part of the Threshold Group network since 2007. Our work in North Fair Oaks runs on the same rule everywhere we go: the price goes in writing before tools come out. No after-the-fact totals. No estimates that creep upward mid-job. If the work fails within a year, the 365-Day Done Right Promise means we return and make it right at no charge.
Perry Osgood leads our crew. He will be the one answering your call half the time, and the one making sure the job sheet matches the invoice. That level of accountability is why landlords who manage North Fair Oaks rentals from out of town keep our number saved.
Change Lock Cylinder in North Fair Oaks
Change Lock Cylinder work in North Fair Oaks usually means pulling the old cylinder out of the lock body and installing a fresh one, either keyed alike to your existing key or keyed to a brand-new set. In this neighborhood, we do a lot of cylinder swaps on rental units where a tenant moved out and the owner cannot account for every copy of the old key. Replacing just the cylinder is cheaper than replacing the whole lock, and it restores full key control.
Cylinder swap on a rental door
North Fair Oaks has one of the highest renter-to-owner ratios on the Peninsula, and turnover is constant. When a tenant leaves a small apartment building on Bay Road or a duplex off Fifth Avenue, the smart move is a cylinder change, not a full hardware replacement. A cylinder swap typically runs $75 to $160 per lock in North Fair Oaks, including the new cylinder and our time. The old key dies at the door.
Same-key convenience across locks
If you have three doors and want one key to work all three, we can key new cylinders alike on site. That is a common request from North Fair Oaks landlords who own a bungalow plus a rear cottage or a converted garage unit. We match the new cylinders to your Schlage, Kwikset, or Yale keyway, so you keep the hardware you trust and lose the keys you cannot track.
Door Lock Installation in North Fair Oaks
Door Lock Installation in North Fair Oaks often means more than bolting a new deadbolt onto the door. Many of the homes here went up between the 1940s and 1960s, and plenty still carry original or first-generation hardware that has been patched, miskeyed, and repainted for decades. When a deadbolt is seized with Bay fog corrosion or the strike is so wallowed out that the latch barely catches, the right call is full replacement, not another re-key.
Full hardware replacement
Installing a new deadbolt and knob set in North Fair Oaks typically runs $120 to $260 per door for standard residential hardware, depending on the condition of the door and whether we need to redrill or reinforce the strike. We stock Schlage, Kwikset, and Yale parts on the trucks, so we rarely need a second visit. When the existing bore holes are off-spec or the jamb needs a reinforced strike plate, we build that into the written price before we touch the door.
When the door itself matters
In rental buildings, the door belongs to the landlord. We use non-destructive methods to open locks, and we protect the finish while swapping hardware. If we need to remove a damaged knob or a deadbolt that will not retract, we do it without prying the frame apart. Landlords in North Fair Oaks hire us because we leave doors that close properly, not doors with split jambs and fresh touch-up paint over the damage.
Trusted Brands We Service in North Fair Oaks
We are factory-authorized to install and service hardware from Schlage, Kwikset, Medeco, and Yale, so when you need a cylinder change or a full deadbolt replacement in North Fair Oaks, we are working with parts built for the job, not whatever the hardware store had on the shelf. The older Schlage cylinders on 1960s bungalows respond to a different touch than a modern Kwikset SmartKey. We keep common North Fair Oaks parts on the truck: ANSI Grade 1 deadbolts, entry knobs, strike plates, cylinder housings, and tailpieces. Saves you a second trip and a second bill.
Common Change Door Locks Problems We See in North Fair Oaks Homes
- Tenants handing off keys the landlord never sees. In high-turnover rental buildings, three tenants in a row might each get a key, and nobody asks who still has one. We fix this with re-keying, not with trust. A fresh cylinder means the old key is scrap.
- Fog-corroded cylinders that spin or seize. The daily marine layer off the Bay settles on north- and west-facing exterior doors here. Inside the cylinder, brass and steel corrode until the key turns hard or not at all. This is the single most common failure we see in North Fair Oaks, and it rarely shows up in drier inland Peninsula cities.
- Mismatched knobs and deadbolts on the same door. Remote landlords replace one piece of hardware at a time, so a door might carry a 1960s knob lock and a five-year-old deadbolt from a different brand. A re-key might make one work and not the other. We bring the whole set back into spec.
- Forced entry damage on multi-tenant doors. Building front doors get propped, kicked, and shoulder-checked. The strike plate bends, the latch hangs low, and no new cylinder will fix a door that will not close square. We replace the worn hardware and reinforce the strike.
Pricing for Change Door Locks in North Fair Oaks, CA
Here are the straight numbers for North Fair Oaks. A cylinder change on a single knob or deadbolt runs $75 to $160. A full deadbolt and knob replacement runs $120 to $260 per door for standard hardware. Re-keying a knob and deadbolt set to match a new key runs $95 to $190, depending on how many cylinders we are re-pinning. If the door frame needs wood filler or a reinforced strike, that adds $25 to $60. The price we quote on the phone is the price on the invoice. No dispatch fee tacked on when the tech arrives. Call (910) 714-4287 and we will give you a firm written range before the truck rolls.
We Also Serve Cities Near North Fair Oaks
Our crews cover North Fair Oaks and the surrounding Bay Area. If you own rentals in North Fair Oaks but need work done at another property, we also serve Los Angeles, San Diego, San Jose, and San Francisco. Dispatch is coordinated from our San Francisco Bay Area office, and scheduling works the same in every market: written price first, named technician before arrival.
Serving North Fair Oaks, CA - Our Local Coverage Area
We’re based in the North Fair Oaks 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 North Fair Oaks
Because North Fair Oaks is unincorporated, landlords often manage their buildings remotely, and turnover is constant. More tenants pass through more doors here than in a single-family-heavy city like Redwood City. That means more unaccounted keys floating around, and more doors where the only real fix is a fresh cylinder or a full re-key. Call (910) 714-4287 and we will tell you which option matches your building.
Yes. We use non-destructive entry methods and padded tools on every door, and we re-install or replace hardware with the frame intact. We regularly work on North Fair Oaks rentals where the owner lives out of county and needs the job done cleanly. Our 365-Day Done Right Promise covers the workmanship for a full year. If a door does not close or latch properly after we leave, we come back at no charge.
Yes, and it is more common in North Fair Oaks than most people realize. Older multi-unit buildings were sometimes pinned sloppily, or a landlord handed out a master key without telling anyone. If your key opens your neighbor’s unit, you cannot control who opens yours. We can re-key every unit to its own key and issue a proper master key only to the owner. We do this kind of key control audit for peninsula landlords all the time.
North Fair Oaks sits close to the Bay, and the daily marine fog layer lingers on north- and west-facing doors through mid-morning. That damp air works its way into older lock cylinders and corrodes the springs and brass pins inside. Menlo Park sits slightly inland and higher, so the same Schlage cylinder that works for a decade there can seize here in five years. We stock corrosion-resistant replacement cylinders and deadbolts for exactly this failure.
If the deadbolt is mechanically sound, we re-key it for $95 to $190 depending on the number of cylinders. If the cylinder is seized with fog corrosion, the key spins, or the bolt does not throw cleanly, replacing the deadbolt is usually the better value. A new Kwikset or Schlage deadbolt installed in North Fair Oaks runs $120 to $260. We will show you the condition of your hardware and give you the written price for both options before you choose.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving North Fair Oaks since 2007.






