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.
Locksmith in Sunnyvale, CA
Locksmith work in Sunnyvale splits into two very different jobs. On the residential side, we spend a lot of time on aging ranch homes built in the 1950s and 1960s – deadbolts corroded by bay fog, original hardware worn past reliable use. On the commercial side, tech campuses along Mathilda Avenue and Java Drive need work few suburban locksmiths ever touch: HID and Lenel card readers at building perimeters paired with Medeco or Mul-T-Lock restricted-cylinder cores on server rooms and R&D labs. Whatever you call about, you’ll get a written price before any work starts, a background-checked technician sent to you by name and photo, and a quote that stays the quote. Call (910) 714-4287 any hour – a live person answers.
Why Sunnyvale Homes Are Different
Sunnyvale’s housing stock runs to two extremes, and that shapes nearly every call. In Lakewood, Borregas, and Cherry Chase – neighborhoods built out in the 1950s and 1960s as ranch-style tract homes – the original or first-replacement builder-grade deadbolts are now 50 to 70 years old. They fail in predictable ways: worn cylinder pins, misaligned strike plates from decades of settling, spindles that spin without engaging. Those are straightforward repairs for us, but they do require hardware knowledge because a 1962 Kwikset doesn’t always accept a 2026 replacement part without minor adaptation.
The marine layer and bay fog that push into Sunnyvale from the northwest play a real role too. Exterior deadbolts on north- and west-facing doors stay damp longer, and over years that moisture stiffens cylinders and corrodes internal springs. We see far more fog-driven cylinder wear in Sunnyvale than in Mountain View or Cupertino, where afternoon sun dries things out faster. Closer to the downtown Caltrain station, the 2010s condos and apartments use electronic fob and keypad entry systems, so a single route through Sunnyvale can swing from corroded mid-century hardware to modern access-controller programming without a break. Perry Osgood, who leads our team, has kept that range of competency standard across every Sunnyvale dispatch.
Our Main Sunnyvale Services
Most Sunnyvale homeowners call us for one of two reasons: they need a residential locksmith to rekey or repair locks around the house, or a specific door lock has failed and they need a repair done same day. Below are the four services we route through Sunnyvale, each with its own dedicated page.
Residential Locksmith in Sunnyvale
Residential calls in Sunnyvale lean heavily toward smart-lock integration and rekeying on homes where the buyer or renter wants certainty about who holds working keys. Homeowners here are more likely than in any neighboring city to call us about an August, Yale, or Schlage Encode lock that won’t sync with HomeKit or Google Home, and that’s work we handle directly. We also rekey traditional pin-tumbler cylinders in place, changing the internal pins so old keys no longer turn, usually in under an hour on standard hardware. Residential Locksmith in Sunnyvale

Door Lock Repair in Sunnyvale
Fog-driven corrosion and five-plus decades of daily use are the two biggest causes of door lock failure in Sunnyvale’s ranch homes. We routinely repair deadbolts that won’t throw, cylinders that bind partway, and latch plates that have drifted out of alignment as old houses settled. When the repair is on an exterior door, we check the weatherstripping and strike alignment at the same time, because in this climate a damp cylinder is usually a sign that something else isn’t sealing. Door Lock Repair in Sunnyvale

Change Door Locks in Sunnyvale
Door lock changes in Sunnyvale usually follow one of three events: a tenant turnover at a condo near Caltrain, a home purchase in Cherry Chase or Lakewood where the buyer wants fresh hardware, or a worn-out lock that isn’t worth repairing. We install what the door can actually support – which on some mid-century ranch homes means working within original bore sizes rather than forcing new hardware into an old prep. Every change comes with a written price up front and the 365-Day Done Right Promise on installation. Change Door Locks in Sunnyvale

Commercial Locksmith in Sunnyvale
Commercial work in Sunnyvale carries a security layer most cities never see. Corporate campuses along North Mathilda and Java Drive commonly pair HID or Lenel card readers at building perimeters with Medeco or Mul-T-Lock high-security mechanical cylinders on interior server rooms and classified R&D spaces. That means a billable service call may require competency in electronic credential systems and restricted-keyway mechanical cores on the same visit. We also handle tenant improvements at the mid-size office parks off Moffett Park Drive, where rekeying after tenant turnover is frequent. Commercial Locksmith in Sunnyvale

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Sunnyvale
We service Schlage, Kwikset, Yale, and Medeco hardware on Sunnyvale calls, with common Kwikset and Schlage cylinders and latch parts stocked in our Bay Area dispatch vehicles. High-security Medeco cores are ordered per keyway and typically arrive within two business days. Our brands page shows the full line we support.
Pricing for Locksmith in Sunnyvale, CA
| Service | Typical range in Sunnyvale |
|---|---|
| Rekey a standard knob lock | $40 – $90 per lock |
| Rekey a deadbolt | $40 – $90 per lock |
| Install a new deadbolt | $120 – $250 |
| Repair a door lock cylinder | $80 – $180 |
| Change door locks (hardware included) | $150 – $400 per door |
| Commercial rekey (per cylinder) | $50 – $120 |
| High-security key cutting (Medeco) | $25 – $60 per key |
| Smart lock installation | $150 – $350 |
| Card reader / access control service call | $180 – $450 |
What pushes the price up in Sunnyvale is usually the hardware itself: a Medeco restricted cylinder costs more than a standard Schlage pin-tumbler, and card-reader work on a campus security system is a different job from swapping a deadbolt. Whatever the scope, the full price goes in writing before any work starts, and the price on the paper is the price on the invoice – no dispatch surcharge added on arrival.
Neighborhoods We Serve in Sunnyvale
We serve all of Sunnyvale, including the neighborhoods where the housing stock varies most – which changes the job, not our availability. Typical response to Sunnyvale calls is under an hour for residential emergencies, with a live person coordinating dispatch around the clock.
- Lakewood
- Borregas
- Cherry Chase
- Downtown Sunnyvale / Caltrain corridor
- North Mathilda corridor
Service Area – Cities Near Sunnyvale
We coordinate Sunnyvale dispatch from the brand’s San Francisco Bay Area office, and we run calls across the neighboring peninsula and South Bay cities. That includes Mountain View, CA, Santa Clara, CA, Cupertino, CA, and Los Altos, CA, with the same written-price policy and technician verification on every job.
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 Locksmith in Sunnyvale
For residential emergency calls in Sunnyvale, typical response is under one hour, coordinated by a live person on our dispatch phone 24/7. Commercial jobs requiring access-control or high-security cylinder work are scheduled in a specific window so the right technician and parts arrive together. Call (910) 714-4287 for an exact ETA.
Some Sunnyvale condo and HOA communities, especially newer buildings near downtown and along Mathilda, have appearance and hardware-uniformity policies that restrict exterior lock changes. Before scheduling, check your HOA’s document or ask our team to walk through what the rules typically require for your building type.
Every Dunmore Locksmith technician is background-checked, identity-verified, and sent to you by name and photo before the visit. The technician arrives in a clean marked uniform and shows a photo ID badge at the door. If anyone arrives who you were not told to expect, that visit is covered at no charge – that is the Threshold Standard.
Need a lock fixed, rekeyed, or replaced in Sunnyvale? Call (910) 714-4287 for a free estimate and a written price before any work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Sunnyvale Customers Say
"Our storefront door lock was worn and tough to turn. He repaired it on the spot and left us extra keys cut properly."
- Camille W."Good work installing a keypad lock on our back office. Showed up fifteen minutes late, but he called first. Programming codes took a while, but he made sure I understood it."
- Mitchell K."Deadbolt on the front door was sticking and wouldn't throw all the way. He cleaned it, adjusted the strike plate, and it works smoothly now. Charged very little."
- Victor S.






