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 Commercial Locksmith Across Colma
Commercial locksmith work in Colma runs about $95 to $240 for a standard service call and rekey, while full commercial lock installation typically lands between $180 and $480 per door. Most jobs on cemetery gates, mausoleum doors, and chapel hardware are completed same-day because our crews know exactly what this fog-soaked environment does to brass, zinc, and steel. If you manage a property along Hillside Boulevard or near El Camino Real and a lock has seized, snapped, or stopped throwing, call (818) 390-9007 and a live person answers, 24 hours a day.
Why Blackthorn Locksmith & Security Is Colma’s Preferred Commercial Locksmith Company
Colma is not a typical commercial locksmith market. With roughly 17 active cemeteries covering most of the city’s land and fewer than 2,000 people living here, the work skews almost entirely institutional: ornamental entry gates, mausoleum door hardware, chapel locks, and historic mortuary administration buildings. Blackthorn has built its reputation in Colma by servicing exactly that hardware, not by treating it as an afterthought to storefront work. Shane Delaney, who leads our team, insists on one standard for every job: a written price before any work starts, background-checked technicians in uniform, and the 365-Day Done Right Promise in writing. Colma customers call us back because the gate that seized last March still throws smoothly in the fog a year later.
We carry hardware from Kwikset, Medeco, and Yale so we are not stuck waiting on a distributor when a Colma property needs a cylinder matched. And because we work these properties regularly, we already know what the marine air does to standard hardware. That matters when a cemetery administrator on Hillside Boulevard calls about a gate that will not throw on a Tuesday morning.
Commercial Lock Installation in Colma
Commercial Lock Installation in Colma usually means fitting new hardware on a gate, chapel door, or office entry that has outlived its cylinder, strike, or latch body. The job includes removing the old set, prepping the door and frame, installing a properly rated lock body, and aligning the strike so the latch seats without dragging. On newer commercial doors along Serramonte Boulevard, this is often straightforward. On the ornamental wrought-iron gates at the older memorial parks, it takes more patience: the original mortise pocket may be worn, the gate may have sagged, and the replacement cylinder needs to be rated for constant humidity exposure. Typical cost in Colma runs $180 to $480 per opening, and we hand you a written price before touching the first screw.
Gate Hardware That Survives the Fog
The standard zinc-plated strikes and padlocks that work fine in a dry inland building fail fast here, often within one season. We fit marine-grade stainless strikes, brass-bodied cylinders, and hardware with sealed pin chambers when a Colma gate or exterior door needs to survive repeated fog cycles. The initial hardware cost is a little higher. The replacement cycle is dramatically longer.
Master Key Systems for Grounds and Office Staff
When we install commercial locks across a Colma cemetery property, we usually build a master key system at the same time. Grounds crews carry one key for maintenance gates, office staff carry another for chapels and administration buildings, and the property manager carries a master. It keeps the key ring small and keeps access controlled, without rekeying everything when one key goes missing.
High Security Locks in Colma
High Security Locks in Colma are not a luxury add-on; they are the practical answer to hardware that gets attacked by both corrosion and unauthorized key duplication. A high-security cylinder means a restricted keyway, patent-protected key blanks, and drill-resistant cores, all of which matter on a property where gates are spread across acres and staff turnover means keys walk away. On chapels, mausoleum doors, and admin offices, we typically see costs of $140 to $380 per cylinder depending on the key control level and brand. Every price is written down before work begins, and that written price is the invoice price.
Medeco and Mul-T-Lock Upgrades
Medeco and Mul-T-Lock are the two brands we install most in Colma for high-security applications. Both offer restricted key blanks that cannot be copied at a hardware store, and both hold up better than standard cylinders in this persistent humidity. If a Colma property manager wants key control across a campus with multiple buildings and gates, we build the system from the first cylinder so every future addition fits the same keyway.
Retrofitting Historic Hardware
Not every high-security need means ripping out a beautiful old bronze mortise lock. We can often rekey an existing antique lock to a high-security cylinder while preserving the original escutcheon and lever set, which matters on the late-19th century mausoleum doors at places like Cypress Lawn Memorial Park. It is slower than a swap-out, but the look stays right and the key control gets dramatically better.
Trusted Brands We Service in Colma
We work the full range, from everyday Yale and Kwikset commercial sets to Medeco high-security cylinders and the antique mortise hardware that shows up in Colma’s older mausoleum and chapel doors. Most Colma jobs do not wait on parts because we stock common pinning kits, strikes, and cylinder bodies for the brands we see weekly. If a discontinued part has to be matched rather than replaced, we will tell you what that means for the lock rather than pushing a whole new set on you.
Common Commercial Locksmith Problems We See in Colma Homes
- Fog-seized gate cylinders and snapped keys. The marine air that funnels through the coastal gaps here condenses on cold metal overnight, corroding pin stacks until keys bind or break off in the cylinder. We see it constantly on cemetery entry gates and any exterior commercial lock within a few hundred yards of the fog belt.
- Pitted padlocks and corroded strikes on outdoor hardware. Standard zinc-plated padlocks fail fast in Colma’s humidity. The shackle pits, the body swells, and the keyway eventually locks up. Marine-grade stainless is the only thing we have seen hold up for more than a couple of seasons.
- Antique mortise locks that neighboring locksmiths will not touch. The bronze mortise sets in Colma’s older mausoleum and chapel doors often need in-place rekeying with discontinued parts, not replacement. Most local locksmiths default to drilling and swapping. We service them in place and keep the door’s original hardware intact.
- Strikes and latches misaligned after gate sag. Heavy wrought-iron gates settle over decades, and a latch that drags on the strike will eventually stop throwing entirely. We re-align the strike, shim the hinge side if needed, and often remount the lock body so the lever moves cleanly again.
Pricing for Commercial Locksmith in Colma, CA
A straightforward rekey on a Colma commercial door runs $95 to $180 per lock. Commercial lock installation lands between $180 and $480 per opening, and high-security cylinders run $140 to $380 each depending on key control and brand. Master key system design for a cemetery property typically runs $300 to $900 depending on the number of openings and cylinders. Those are honest Colma market ranges. The written price you get before dispatch is the price on the invoice, and no call-out surcharge gets added when the technician arrives. Call (818) 390-9007 and we will quote the job fully on the phone, then send a technician with that written quote in hand.
We Also Serve Cities Near Colma
While this page is written for Colma property managers and staff, our Commercial Locksmith team also covers nearby Bay Area and California cities including San Francisco, San Jose, Los Angeles, and San Diego. If you manage property across city lines, one call covers the whole portfolio. For full details on our Colma work, see Commercial Locksmith in Colma.
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 Commercial Locksmith in Colma
Because lubricant does not remove the corrosion already inside the pin stack. Colma’s marine fog layer condenses on cold gate hardware overnight, and the resulting moisture wicks into the cylinder, corroding the pins and springs until keys bind. We disassemble the cylinder, clean and re-pin it, and often replace it with a marine-grade cylinder rated for constant humidity. Call (818) 390-9007 for a free estimate, and we will tell you whether your existing cylinder can be saved or should be swapped for coastal-rated hardware.
Yes, in most cases we can rekey and repair antique bronze mortise locks in place without replacing the original set. That means matching discontinued parts or fabricating simple replacements rather than drilling the door. We have done this exact work on mausoleum doors in Colma’s older memorial parks, and we know the difference between a lock that needs cleaning and a lock that needs new springs. The written quote tells you which one you have before any work begins.
We build master key systems around marine-grade cylinders and schedule annual service to clean and lubricate pin stacks before they seize. In Colma’s fog belt, a master key system falls apart when the cylinders corrode unevenly and different keys stop working in different doors. Our approach is to pin every cylinder with the same humidity tolerance in mind, then document the full key chart so future additions fit the system. Call (818) 390-9007 to talk through your property’s openings, and we will give you a written price for the whole system.
Rekeying changes the internal pins so the old key stops working and a new key operates the existing hardware. Replacing means installing a new lock body, cylinder, or full handle set. Rekeying is faster and costs less, usually $95 to $180 per lock in Colma, while replacement runs $180 to $480 per opening. If the existing hardware is in good shape, we will say so and rekey it. If the cylinder is corroded beyond cleaning, we will show you and quote the replacement before any work starts.
Yes, we install bump-resistant and high-security locks from Medeco and Mul-T-Lock on chapel and office doors throughout Colma. Cylinders typically run $140 to $380 each depending on the key control level and whether we build a restricted key system for your property. Restricted blanks mean no one can copy a key at a hardware store, which matters on a campus where keys change hands between staff, volunteers, and grounds crews. Call (818) 390-9007 and we will help you decide which level is right for each door.
Written by Shane Delaney, Owner at Blackthorn Locksmith & Security, serving Colma since 2008.