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 Colma, CA
Locksmith work in Colma, CA almost always involves institutional or commercial properties: cemetery gates, mausoleum hardware, chapel doors, and admin buildings. That is what makes this Town of the Dead different from any neighboring city. The persistent coastal fog here means exterior lock cylinders and heavy gate mechanisms corrode faster than they would a few miles inland. When you call Blackthorn Locksmith & Security at (818) 390-9007, a live person answers and gives you a written price before anyone is dispatched.
Why Colma Homes Are Different
Colma has a living population under 2,000, so the city operates unlike any other in San Mateo County. The majority of its land area belongs to roughly 17 active cemeteries, and that shapes nearly every aspect of the work. The residential footprint is small and clustered mostly near Hillside Boulevard and El Camino Real, with modest mid-20th century homes that often still hold original mortise locksets. Those older locks are worth maintaining rather than replacing – they were built with solid brass internals, and a careful rekey or cylinder rebuild usually outperforms a budget swap.
The climate is the other factor that changes everything. Colma sits in one of the foggiest microclimates on the peninsula, with marine air funneling through coastal gaps from the Pacific. Chronic high humidity accelerates corrosion in exterior lock cylinders, gate hinges, and mausoleum door hardware. We see sticky pin stacks and seized cylinders here far more often than in Daly City or South San Francisco, where the air runs a little drier. A lock that works fine in September may bind by February if nobody has lubricated the cylinder with the right weather-resistant product. That is not a hypothetical. It is the single most common service call pattern in Colma.
Our technicians work to the C.A.R.E. values on every job: Clean up like it is our own home, Ask before we move or touch anything, Respect the family’s time and quiet hours, and Explain the price before the work. In cemetery offices and chapel buildings where visitors may be grieving, that quiet, respectful approach matters even more. We lay drop cloths, wear shoe covers, and send you a photo of the clean-up before we leave – included on every visit, not as an upgrade.
Our Main Colma Services
Most calls in Colma fall into two groups: commercial locksmithing for cemetery and funeral-industry properties, and residential work for the modest number of homeowners near El Camino Real and Hillside Boulevard. Here is what each involves locally.
Commercial Locksmith in Colma
Commercial work in Colma is dominated by cemetery infrastructure: large ornamental wrought-iron entry gates, mausoleum door hardware, chapel locks, and historic mortuary administration buildings with antique mortise sets. These are not jobs a generalist locksmith can wing. The bronze mortise locks at places like Cypress Lawn Memorial Park date to the late 19th and early 20th centuries, and servicing them in place – or matching discontinued parts – is a specialized skill. Fog-driven corrosion, heavy daily gate cycling, and visitor traffic all wear hardware differently than a typical storefront. We carry and install Schlage, Medeco, and Mul-T-Lock commercial hardware, and we quote every job in writing before work begins. See Commercial Locksmith in Colma.

Residential Locksmith in Colma
Colma’s residential calls are understandably rare given the town’s small living population, but the homes that do exist near Hillside Boulevard and El Camino Real tend to be mid-century builds with original mortise locksets or early Kwikset and Schlage hardware. Many homeowners prefer to rekey and rebuild those older locks rather than replace them, and that is often the better call – the original hardware was solid brass, and a rebuilt lock with fresh pins usually outlasts a big-box replacement. We also handle rekey-after-move-in, deadbolt upgrades, and lockouts. For the full picture, see Residential Locksmith in Colma.

Access Control Systems in Colma
Access control in Colma means securing maintenance yards, administrative offices, and restricted areas across large cemetery properties where dozens of employees and contractors need controlled entry. Keypads, card readers, and electric strikes on heavy gates all suffer from the same fog-driven corrosion as mechanical locks, so choosing weather-rated hardware and sealing exterior connections properly is not optional here. We install and service systems using Schlage, Medeco, and Abloy hardware, and we survey and schedule every access control job with a written scope and a flat per-lock price. Details on Access Control Systems in Colma.

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 Colma
We stock and service Kwikset, Schlage, and Baldwin hardware for most residential jobs in Colma, and Medeco for high-security commercial and institutional work. Weather-rated cylinders and gate hardware are kept in local service stock, so most repairs are same-visit rather than ordered. Every brand we carry is covered under our 365-Day Done Right Promise. Full details on our brands.
Pricing for Locksmith in Colma, CA
Every price below is a typical range for Colma. The exact number depends on the hardware on your door, the time of day, and whether parts need to be matched to existing mortise sets rather than replaced with new ones. You always get a written price before any work starts – the phone quote is the invoice price, with no call-out surcharge added on arrival.
| Service | Typical range in Colma |
|---|---|
| Residential lockout | $90-$150 |
| Rekey a lock (standard cylinder) | $25-$45 per lock |
| Replace a standard deadbolt (customer-supplied) | $75-$120 |
| Replace a standard deadbolt (Blackthorn-supplied) | $140-$220 |
| New Schlage or Kwikset knob/handle install (Blackthorn-supplied) | $120-$200 |
| High-security cylinder install (Medeco or Mul-T-Lock) | $150-$300 per cylinder |
| Commercial lockout | $120-$250 |
| Commercial rekey | $35-$75 per lock |
| Panic bar install | $450-$750 |
| Door closer install | $180-$350 |
| Card reader / keypad installation | $650-$1,500 |
| Electric strike installation | $350-$700 |
Fog-corrosion repair on cemetery gate hardware and antique mortise locks can add time, because the work is done in place rather than swapped. You will still see that written price before a single screw is turned.
Neighborhoods We Serve in Colma
Colma is small, but the job types shift quickly from one block to the next. We respond to calls throughout the Town of Colma, including:
- Cypress Lawn Memorial Park area
- Holy Cross / St. Mary’s Cemetery areas
- El Camino Real corridor
- Hillside Boulevard residential cluster
- Serra Center / commercial area
Our typical response time in Colma is 45-60 minutes during business hours, and a live person answers 24/7 – including holidays – when the call comes in.
Service Area – Cities Near Colma
While our Colma crews focus on the Town of Colma itself, we also serve clients across the greater metro area. If you are in San Francisco, CA or further south in San Jose, CA, we can coordinate service from our Los Angeles dispatch office and route a local crew. For larger commercial or access control projects, we also cover Los Angeles, CA and San Diego, CA.
Serving Colma, CA - Our Local Coverage Area
We’re based in the Colma 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 Colma
Typically 45-60 minutes during business hours. Colma is geographically compact, so response times are consistent across the town. Call (818) 390-9007 and a live person will give you a realistic arrival window and a written price before anyone is dispatched.
For standard rekeying, lock replacement, and lockout work, no permit is required. Some access control installations on commercial properties may need local review depending on the scope, and we will walk you through that during the written quote process.
Yes. Our technicians have experience with late-19th and early-20th century mortise locks and ornate bronze lever hardware commonly found in Colma’s mausoleum and chapel buildings. We service those locks in place, and when a part has been discontinued, we match it with period-appropriate replacements.
Yes. Every Blackthorn job begins with a written price sent to you before any work starts. The price on the phone is the price on the invoice – no call-out surcharge, no surprise line items. Call (818) 390-9007 for an exact quote for your Colma property.
If you are locked out, need a rekey after moving into one of the homes off Hillside Boulevard, or manage a cemetery property with failing gate hardware, call us at (818) 390-9007. We will answer right away, quote a written price, and send a background-checked technician in uniform who will leave your property exactly as they found it.
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 Colma Customers Say
"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"Good rekey work and very respectful of the home. It took a day longer to schedule than I'd hoped, but once here he was careful, clean, and patient with my questions."
- Pauline Esparza"Installed a keypad on our office door. Tidy install, explained it to the staff gently and clearly, and he swept up after drilling. No mess on the carpet."
- Desmond Yoo






