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 Hillsborough, CA
Locksmith work in Hillsborough is unlike anywhere else on the Peninsula. We’re working almost exclusively on large custom estates built between the 1920s and 1960s, where original mortise lock sets, heavy brass hardware, and multi-point entry systems are the norm, not the exception. The marine-layer fog that rolls off the coastal hills year-round also means we’re dealing with corroded cylinders and seized gate mechanisms far more often than in drier inland cities. If you need a lock rekeyed, a gate system repaired, or a master key plan designed for a main house plus outbuildings, call us at (818) 390-9007.
Why Hillsborough Homes Are Different
Hillsborough is one of the few incorporated cities in California with zero commercial zoning. It is entirely large single-family residential estates, many built between the 1920s and 1950s in Tudor Revival, Spanish Colonial Revival, and Mediterranean styles. That shapes every call we take here. Thick solid-core doors fitted with original mortise lock bodies from companies that stopped making replacement parts decades ago. Ornate brass escutcheons that a standard deadbolt install would destroy. Wrought-iron perimeter gates with cylinders that have been corroding in salt-laden fog for forty years. We keep specialty mortise parts, custom cylinder blanks, and corrosion-resistant hardware on our trucks because we know this housing stock.
The terrain matters too. Hillsborough’s hillside lots mean long driveways, steep service paths, and gates that sit exposed to wind-driven fog. We plan service visits knowing that a pool house, guest cottage, or caretaker unit often sits two hundred feet from the main residence and needs to be keyed into the same system. That’s a routine job here, not a special request.
Our Main Hillsborough Services
Most Hillsborough homeowners call us for one of two things: estate lock repair or rekeying on the residential side, and access control or master key planning for properties with multiple buildings. Here’s what each involves in Hillsborough specifically.
Commercial Locksmith in Hillsborough
Hillsborough has no storefronts, so commercial work here means something different: estate offices, home-based professional spaces, and the occasional private school or club facility. The work involves high-security cylinder upgrades, rekeying after staff turnover, and master key hierarchies that separate family areas from office or service areas on the same parcel. We often retrofit older mortise locks with modern Medeco or Schlage cylinders without disturbing the original brass faceplates. For the full scope and local pricing, see Commercial Locksmith in Hillsborough.
Residential Locksmith in Hillsborough
Residential calls in Hillsborough usually start with a lock that’s sixty years old and has finally stopped turning, or an estate purchase where the new owners want every exterior door rekeyed before move-in. We service original mortise lock bodies, replace worn cylinders, align sagging doors on older frames, and install modern deadbolts where they won’t damage period hardware. We carry Kwikset, Schlage, Baldwin, and Medeco hardware, and we always protect the door frame and flooring before starting. Full details are on the Residential Locksmith in Hillsborough page.
Access Control Systems in Hillsborough
Many Hillsborough properties have a main residence plus a guest house, pool house, or caretaker cottage across the same parcel. Access control work here means designing a system that lets the family move through every building with one credential while giving a landscaper or household staff access only to specific doors at specific hours. We install and service keypads, card readers, and smartphone-based entry on gates and entries, and we cut master keys that respect the existing mortise hardware. Read the full breakdown on Access Control Systems in Hillsborough.
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 Hillsborough
We service and install hardware from Schlage, Kwikset, Medeco, and Abloy, among others. For Hillsborough’s older estates, we keep mortise lock parts and heavy-duty cylinder blanks stocked locally so a rekey doesn’t stall while parts ship. Learn more about what we carry on our brands page.
Pricing for Locksmith in Hillsborough, CA
| Service | Typical range in Hillsborough |
|---|---|
| Rekey a single cylinder | $85-$125 |
| Rekey multiple locks after move-in | $180-$340 |
| Deadbolt installation (standard) | $140-$220 per lock |
| Mortise lock repair or cylinder replacement | $190-$320 |
| High-security cylinder upgrade (Medeco or Abloy) | $220-$400 per cylinder |
| Gate lock repair or replacement | $160-$380 |
| Master key system for main house plus outbuildings | $400-$900 |
| Access control keypad or reader install (single door) | $550-$1,100 |
| Emergency lockout, same day | $120-$200 |
What pushes cost up in Hillsborough is usually the hardware itself: original mortise bodies that need specialty parts, or perimeter gates that require corrosion-resistant cylinders and weatherproofing. Whatever the job, you get a written price before any work begins, and that is the price on the invoice, with no surprise add-on when we arrive.
Neighborhoods We Serve in Hillsborough
Hillsborough’s estates are spread across rolling terrain, and we cover all of it. Our typical response time for non-emergency calls within Hillsborough is under two hours, often faster during weekday mornings.
- Carolands
- Lakeview
- Lower South Hillsborough
- Trousdale
- Upper North Hillsborough
Service Area – Cities Near Hillsborough
While this page focuses on Hillsborough, we also serve the broader Bay Area through our network. If you’re looking for locksmith service further afield, see our pages for San Francisco, CA, San Jose, CA, Los Angeles, CA, or San Diego, CA.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 Hillsborough
For lockouts and urgent repairs, we typically reach any Hillsborough address within 45 to 90 minutes. Scheduling dispatch comes from our San Francisco Bay Area office, and we keep technicians staged near the Peninsula during the day. Call (818) 390-9007 and a live person confirms the arrival window.
In most cases, no. Exterior hardware changes on a private Hillsborough estate don’t require town approval, though the Hillsborough Architectural and Design Review Board does review major structural changes or new gate construction. Rekeying a lock or replacing a cylinder is routine maintenance, and we can advise if your project seems to fall under design review.
Yes. Rekeying the main residence plus a guest house, pool house, or caretaker unit on the same Hillsborough parcel is a standard job for us. We arrive with enough cylinders and key blanks to handle every door on the property in a single visit, and you get one written price before work starts.
Call Blackthorn Locksmith & Security at (818) 390-9007 for a free, written estimate on any lock, gate, or key system work in Hillsborough.
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 Hillsborough Customers Say
"Rekeyed the house and added a deadbolt the first week we moved in. He wore shoe covers, swept the shavings off the floor, and was kind and patient. Felt safe right away."
- Marisol Quint"Rekeyed the whole house after we moved in. He was calm and careful, wore shoe covers without me asking, and cleaned up the little metal shavings from each door. Felt safe that first night."
- Harriet Boyle"Access control for a small clinic. He understood we had patients around and kept it quiet and clean. Protected the floors where he was drilling and tidied everything after."
- Ron Pak