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 Residential Locksmith Across Sunnyvale
When a lock fails or keys go missing in Sunnyvale, you need a residential locksmith who knows this city’s homes, not just a generic dispatch. Our Residential Locksmith team works on the 1950s and 60s ranch houses in Lakewood, Borregas, and Cherry Chase every week, and we understand how Sunnyvale’s marine layer affects aging hardware in ways that out-of-area crews typically miss. A real person answers our phone 24 hours a day, and our Sunnyvale response time for emergency lockouts runs 20 to 35 minutes for most neighborhoods. Call (910) 714-4287 and you’ll get a named technician with a photo sent to your phone before we arrive.
Why Dunmore Locksmith Is Sunnyvale’s Preferred Residential Locksmith Company
Dunmore comes from old words for a great fort, a stronghold built to keep what is inside safe. That’s the standard we hold ourselves to in Sunnyvale. Led by Perry Osgood, our team has served customers under the Threshold Group umbrella since 2007. Every technician we dispatch to Sunnyvale is background-checked, identity-verified, uniformed, and carrying a photo ID badge they show at your door. You’ll receive the technician’s name and photo before the van leaves, so you know exactly who to expect before you turn the handle.
The Threshold Standard is what we call this identification protocol, and it matters because opening your door to a stranger is not a small thing. Sunnyvale homeowners call us because they want written prices before any work begins, a live person on the phone at any hour, and a 365-Day Done Right Promise on every job. If a repair fails within a year, we come back at no charge. That guarantee is stamped on every invoice we write in Sunnyvale.
Perry Osgood built Dunmore Locksmith around this principle: the person at your door should be exactly who the company says they are. We hold to that on every call in Sunnyvale, from a 2 a.m. lockout near the downtown Caltrain station to a scheduled rekey on a Ranch-style home off Fremont Avenue. The price we quote on the phone is the price on your invoice. No call-out surcharge added when the van pulls up.
Locked Out of Apartment in Sunnyvale
Locked Out of Apartment in Sunnyvale is one of our most frequent emergency calls, and we treat every one as a security event, not just an inconvenience. Most apartment locks in Sunnyvale fall into two camps: modern keypad or fob systems in the newer complexes near downtown, and traditional pin-tumbler deadbolts and knob locks in the older courtyard buildings scattered along El Camino Real and Wolfe Road. A typical apartment lockout in Sunnyvale runs $95 to $165 for non-destructive entry, and we carry tools specific to both electronic and mechanical systems.
Non-Destructive Entry First
Our default approach on any Sunnyvale lockout is to pick or manipulate the lock open, not drill it. We only drill when the cylinder is genuinely beyond saving or the door hardware is already failing. Drilling means replacing the cylinder afterward, which adds cost. If your apartment uses a Kwikset or Schlage cylinder, we almost always get it open without damage.
After Entry, Verify and Secure
Once you’re inside, we recommend a quick check of the lock’s condition. In older Sunnyvale apartments near Washington Park, we frequently find cylinders that are stiff or worn and near failure. Rekeying the existing lock costs $65 to $120 per cylinder. If replacement is the honest call, a new deadbolt installed in Sunnyvale runs $140 to $220 including the hardware.
Apartment Locksmith in Sunnyvale
Apartment Locksmith in Sunnyvale work means more than lockouts. We handle rekeys between tenants, keypad programming, fob duplication where the system allows it, and deadbolt installations for landlords and property managers across the city. In complexes along Mary Avenue and Arques Avenue, we regularly program Schlage Encode, Yale Assure, and August smart locks, and we’re fluent in HomeKit and Google Home integrations common in Sunnyvale tech households. A standard apartment rekey in Sunnyvale runs $65 to $120 per cylinder, and deadbolt replacement runs $140 to $220 installed.
Rekey vs. Replacement in Sunnyvale Apartments
If your apartment or rental unit still has its original Schlage or Kwikset hardware and the cylinder is mechanically sound, rekeying is the cost-effective path and we’ll tell you so outright. If the deadbolt feels gritty, the bolt no longer throws fully, or the faceplate is corroded from years of marine-layer moisture, replacing the lock is the honest recommendation. We write the scope and price before any work starts, so there is no upsell at the end of the visit.
Property Manager Support
For Sunnyvale landlords and property managers, we schedule service windows instead of emergency dispatch. We provide a written scope for multi-unit rekeys, charge a flat per-lock price, and can key multiple units to a master system on request. Every lock we install or rekey is covered by the 365-Day Done Right Promise.
Common Residential Locksmith Problems We See in Sunnyvale Homes
Sunnyvale’s housing stock has a particular fingerprint, and we see the same failure patterns repeat across the city:
- Corroded original deadbolts from the 1950s and 60s: In Lakewood, Borregas, and Cherry Chase, original builder-grade Kwikset and Schlage deadbolts are now 50 to 70 years old. The marine layer that pushes in from the northwest keeps north- and west-facing door hardware damp, so cylinders stiffen and corrode rather than freeze and crack.
- Warped original doors that reject modern hardware: Many Sunnyvale ranch homes have solid wood entry doors that have shifted slightly over six decades. A modern ANSI Grade 1 deadbolt rarely drops into these without strike plate adjustment, and sometimes the door needs a new bore location. We adapt the hardware to the door, not the other way around.
- Smart lock integrations on older hardware: Sunnyvale homeowners adopt smart locks at a higher rate than almost any comparable suburban city. We regularly install Schlage Encode and Yale Assure locks on 1960s doors that need a careful retrofit, including repositioning strike plates and sometimes replacing the original deadbolt’s bore.
- Mortise lock failures in older homes and some apartment buildings: Some Sunnyvale homes built before 1950, and a handful of older apartment buildings, still use mortise-style locksets. These are not a simple drop-in replacement. We service them on-site, and when replacement is needed, we source hardware that fits the existing mortise pocket.
Pricing for Residential Locksmith in Sunnyvale, CA
Sunnyvale pricing reflects the cost of doing business in this market, and we believe in giving you real numbers before you commit. A standard lock change on a single cylinder runs $95 to $160. Rekeying a knob or lever lock runs $65 to $120 per cylinder. Deadbolt installation runs $140 to $220 including the hardware. Window lock installation runs $45 to $85 per lock. Door reinforcement, including strike plate replacement and longer screws, runs $60 to $140 per door. Every price is written down and agreed to before any work begins.
What affects the total is the door’s age and condition. A 1962 ranch on Lakewood with a warped door and a corroded cylinder may need an extra 20 minutes of work to adjust the strike plate and clean the lock body. We quote that on the phone. Call (910) 714-4287 for a free estimate, and that estimate is the price on your invoice.
Trusted Brands We Service in Sunnyvale
We are factory-authorized to service and install Kwikset, Medeco, and Baldwin hardware, and we stock the most common cylinders, deadbolts, and faceplates for Sunnyvale’s older homes in our Bay Area service vehicles. When your 1960s Kwikset deadbolt needs a new cylinder but the original faceplate is no longer manufactured, we source a compatible replacement rather than making you hunt for a discontinued part. That matters in Sunnyvale, where many older locks deserve repair and rekeying rather than wholesale replacement. The parts our techs carry are selected for this city’s housing stock, not a generic national inventory.
We Also Serve Cities Near Sunnyvale
Our Residential Locksmith in Sunnyvale routes also cover Mountain View, Santa Clara, Cupertino, and Los Altos. If you live near the Sunnyvale border, you’ll get the same named-technician dispatch and written pricing we provide in Sunnyvale proper. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, with local crews serving Sunnyvale daily. Call (910) 714-4287 and we’ll route the nearest available technician.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale 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 Residential Locksmith in Sunnyvale
In most cases, yes, it can be rekeyed. The original Kwikset deadbolts found in Lakewood, Borregas, and Cherry Chase homes are simple pin-tumbler cylinders, and rekeying runs $65 to $120 per cylinder. We’ll first clean marine-layer corrosion from the cylinder and lubricate the internal pins. If the cylinder is too corroded to rekey cleanly, we recommend replacing just the cylinder rather than the entire lock, which keeps the original faceplate and bolt assembly intact. Call (910) 714-4287 and we can tell you over the phone which path makes sense.
Almost never. Keypad and electronic entry locks on Sunnyvale’s newer apartments can usually be opened through non-destructive methods: either the property manager’s master code, a battery bypass port, or a locksmith’s programming tool. Drilling is a last resort we use only on hardware that has failed mechanically and cannot be reset. We carry the programming equipment for Schlage, Yale, and August systems in our Bay Area vehicles. A keypad lockout in Sunnyvale runs $95 to $165 for non-destructive entry.
That stiffness is marine-layer corrosion. Sunnyvale’s bay fog pushes in from the northwest and settles on north- and west-facing doors, keeping the cylinder internals damp for hours at a time. Over years, that moisture corrodes the brass pins and springs inside the cylinder, making the key hard to insert and turn. South-facing doors dry in the sun and rarely show the same problem. The fix is a cylinder cleaning and lubrication, which we include as part of any rekey, or a cylinder replacement if corrosion has advanced too far.
In most Sunnyvale ranch homes, yes, with some preparation. The original door bore on 1950s and 60s homes is typically 2-1/8 inches, which matches modern Schlage Encode and Yale Assure footprints. The common issues are a warped door, a misaligned strike plate, or a deadbolt hole that has drifted over time. We adjust the strike plate, sometimes drill a new bore location, and verify the bolt throws cleanly before we call the job done. Smart lock installation in Sunnyvale runs $160 to $260 including setup and app pairing.
A rekey changes the internal pins so your old keys no longer work, while the lock body, cylinder, and faceplate stay in place. A full replacement removes the entire mortise lock body from the door, which on an older Sunnyvale home usually means sourcing hardware that fits the existing mortise pocket. Rekeying a mortise cylinder runs $65 to $120. Replacing a complete mortise lockset runs $180 to $350 depending on the hardware, and we always provide a written quote before ordering anything. If your mortise lock body is sound, rekeying is the honest recommendation and we’ll tell you that plainly.
If you’re in Sunnyvale and need a residential locksmith who tells you the truth about your old hardware, call (910) 714-4287. We’ll send a named, photo-badged technician to your door, put the price in writing before any work begins, and back every repair with the 365-Day Done Right Promise. Free estimates, 24 hours a day, every day of the year.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Sunnyvale since 2007.






