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 Half Moon Bay
Commercial locksmith work in Half Moon Bay is different from lock work anywhere else on the Peninsula. The salt air off the Pacific gets into everything, and locks that look fine from the outside are often corroded solid inside. When a storefront deadbolt seizes at 7 a.m. on a Tuesday or a panic bar won’t retract during a fire inspection, you need a locksmith who stocks marine-grade hardware and knows the older commercial buildings along Main Street and in the Old Town core. We’re Dunmore Locksmith, and we serve Half Moon Bay businesses with same-day response, written pricing before any work starts, and a 365-day guarantee on every repair. Call us at (910) 714-4287 and a live person answers, day or night.
Our crews dispatch from the San Francisco Bay Area office and serve Half Moon Bay locally, so we’re not racing over Highway 92 from somewhere inland when you need us. That matters in a town with one mountain pass in and out.
Why Dunmore Locksmith Is Half Moon Bay’s Preferred Commercial Locksmith Company
Half Moon Bay businesses keep calling us back because we understand what this coastline does to hardware. A standard brass cylinder that would last a decade in Burlingame will often seize in three to five years here, and a locksmith who doesn’t know that will sell you the wrong product twice. We recommend stainless and marine-grade finishes from the first visit, not after a callback. Our technicians arrive in marked uniforms with photo ID badges, and you get their name and photo before they show up. That’s the Threshold Standard, and it’s non-negotiable. If anyone arrives who you weren’t told to expect, that visit is covered at no charge.
Perry Osgood leads our team, and every job we complete carries the 365-Day Done Right Promise in writing. If a repair fails within a year, we return at no charge. No fine print, no arguing about whether the salt air or the original hardware was to blame. We just fix it. That’s why storefront owners in Half Moon Bay’s commercial districts, from the shops along Main Street to the newer retail spaces near Route 1, trust us with their locks, closers, and access control.
Commercial Door Closer Repair in Half Moon Bay
Commercial Door Closer Repair in Half Moon Bay usually means dealing with a closer that has been fighting salt-air corrosion and constant coastal wind for years. A door closer on an ocean-facing storefront in Half Moon Bay gets hammered by gusts off the water, and the internal seals wear out faster than they would inland. When a closer slams shut or won’t hold the door open, it’s not just annoying, it’s a liability if an employee or customer gets hurt. We repair and replace closers on commercial entries throughout Half Moon Bay, including the storefronts along Main Street and the professional offices near Highway 92. Most closer repairs in Half Moon Bay run $180 to $340, depending on whether the closer can be rebuilt with new seals or needs full replacement.
A worn closer can often be repaired in place. A seized one usually gets replaced. Either way, you get the written price before we touch a screwdriver, and that’s the price on the invoice. No surprise totals.
Hydraulic Closer Rebuilds
Most Half Moon Bay closers don’t need full replacement. We can rebuild the hydraulic body with new seals and marine-grade fluid, which restores smooth closing without changing the look of the door. This costs less than replacement and keeps your existing hardware in service. If the closer body is cracked or the arm is bent from wind damage, replacement is the honest answer, and we’ll tell you that plainly.
Wind-Resistant Closer Selection
For entries that face the ocean or sit at exposed corners, we specify closers rated for high-wind environments, with adjustable backcheck and delayed action. Those features stop the door from slamming when a gust catches it. A standard closer from a big-box store will fail early here, and it won’t hold up to the constant salt exposure either.
High Security Locks in Half Moon Bay
High Security Locks in Half Moon Bay start with a simple fact: the coastal climate here eats standard cylinders from the inside while the face still looks new. A high-security cylinder from Medeco or Mul-T-Lock uses stronger internal components and tighter tolerances, which means it resists both the salt-air corrosion and the bumping, picking, and drilling that target commercial doors. We install and service high-security locks throughout Half Moon Bay, from the restaurants and galleries in the Old Town core to the offices and retail spaces along Cabrillo Highway. A commercial high-security cylinder upgrade in Half Moon Bay typically runs $140 to $280 per door, including the new keys and installation. If you’re also adding a new deadbolt or mortise lock body, expect $250 to $460 per opening depending on the hardware grade and finish.
We always specify a corrosion-resistant finish for coastal installs. A standard brass cylinder will seize within a few seasons here, no matter how good the brand is.
Bump-Resistant and Drill-Resistant Cylinders
Half Moon Bay businesses that handle cash or keep expensive inventory on site should consider cylinders that resist both bumping and drilling. These use hardened steel pins, sidebars, and reinforced cores. The difference is real: a determined thief with a bump key can open a standard deadbolt in seconds, but a bump-resistant cylinder stops that attack cold. We stock these for both Schlage and Medeco hardware, so we can usually install them the same day we inspect your doors.
Key Control and Restricted Keyways
If you need to know exactly who has keys to your Half Moon Bay business, we set up restricted keyways that can’t be copied at a hardware store. Only you authorize new keys, and every copy is tracked. That’s useful for storefronts with multiple employees, vacation rentals on the coast, or any building where a former employee might have kept a key. The cylinders themselves are also more difficult to pick, which is the point.
Trusted Brands We Service in Half Moon Bay
We’re factory-authorized to install and service hardware from Medeco, Yale, and Kwikset, and we keep the common replacement parts for those brands stocked specifically for Half Moon Bay customers. That means we’re not waiting on a shipment from a distributor when your storefront lock gives out. Medeco high-security cylinders, Yale panic bars and closers, and Kwikset commercial deadbolts are all familiar territory for our technicians. We also work on Schlage, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware, from basic lever sets to full access-control integrations. For coastal installs, we specify stainless or marine-grade finishes wherever the hardware is exposed to the air. It costs a little more up front and saves you from replacing the same lock in three years.
Common Commercial Locksmith Problems We See in Half Moon Bay Homes
- Seized cylinders that look fine from the outside. The chloride-laden air here corrodes the internal pin and tumbler stack while the brass face stays shiny. A lock that worked in October can be frozen solid by March, and the fix is usually a stainless replacement cylinder, not a newer version of the same brass part.
- Warped wood doors in older buildings. The Old Town core has storefronts with original wood doors that swell and twist with the coastal humidity. A lock that worked fine in the dry season can bind completely after a wet winter, and forcing the key just breaks it further.
- Wrong hardware for the climate. Standard residential-grade deadbolts installed on commercial doors here fail in three to five years. The bolt binds, the internal springs corrode, and the cylinder seizes. Marine-grade hardware is the only honest fix for an exterior door this close to the Pacific.
- Mortise locks no one wants to replace. Early-20th-century bungalows and the older commercial buildings in Half Moon Bay often have original mortise lock bodies. A modern cylinder doesn’t simply drop in, and replacing the whole lock means modifying a historic door. We rekey and repair these to keep the original look.
Pricing for Commercial Locksmith in Half Moon Bay, CA
Here’s what commercial lock work actually costs in Half Moon Bay. A commercial lockout during business hours runs $90 to $160, and emergency after-hours lockouts run $140 to $220. Rekeying a standard commercial door runs $25 to $45 per cylinder, plus the service call. A new commercial deadbolt installed on a standard door runs $120 to $200. A high-security cylinder upgrade runs $140 to $280 per door. Commercial door closer repair or replacement runs $180 to $340. Master key system setup for a small Half Moon Bay building runs $300 to $800 depending on the number of doors. Panic bar installation runs $350 to $700 per door for hardware and labor. Access control installation runs $800 to $2,500 per entry depending on the system. These are honest ranges, not teaser prices. You get a written quote before any work starts, and that quote is the final price. Call (910) 714-4287 for a free estimate.
We Also Serve Cities Near Half Moon Bay
Our commercial locksmith team covers the entire Half Moon Bay coastside and the surrounding Peninsula. We regularly serve businesses in Half Moon Bay, along with El Granada just north along Highway 1, plus Burlingame, Millbrae, and Belmont over the hill. If your business sits in one of those nearby communities, you get the same written pricing, background-checked technicians, and 365-day guarantee. Our Commercial Locksmith team handles every job the same way.
Serving Half Moon Bay, CA - Our Local Coverage Area
We’re based in the Half Moon Bay 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 Half Moon Bay
The marine layer here deposits chloride-laden moisture on your lock every night, and that works its way into the internal pins and springs while the brass face stays intact. The lock corrodes from the inside out. The fix is to replace the cylinder with a stainless or marine-grade version, not another standard brass one. Call (910) 714-4287 and we’ll specify the right hardware for your door.
Usually yes, and we prefer to keep the original lock body when it’s still sound. A lot of Old Town storefronts have mortise locks with case dimensions that don’t match modern replacements, so rekeying the existing body with a new stainless cylinder is cleaner and cheaper than modifying the door for a new lock. If the mortise body itself is corroded or cracked, replacement is the honest answer, and we’ll tell you which one applies before any work begins.
Rekeying changes the internal pins so the old keys stop working, but it keeps the existing cylinder housing. Replacing the cylinder swaps out the whole assembly for a new one. On the Half Moon Bay coast, we often recommend replacement even when rekeying would work, because the old cylinder housing is usually partway through salt-air corrosion and will fail soon anyway. A stainless replacement cylinder rekeyed to your desired key is the long-term fix. Call (910) 714-4287 for a written quote.
Yes. We install bump-resistant and high-security cylinders from Medeco and Mul-T-Lock, with key control so employees can’t copy keys at a hardware store. Half Moon Bay commercial doors get both a security upgrade and a corrosion-resistant finish. Installation runs $140 to $280 per door for the cylinder upgrade, and we quote the full price before starting.
Most of the time, yes. We rebuild hydraulic closers with new seals and fluid, which restores smooth operation for far less than replacement. If the closer body is cracked or the internal piston is scored from salt-air corrosion, replacement is the honest call. Either way, the written quote covers the full amount, and the repair is guaranteed for 365 days under our Done Right Promise.
If you run a business in Half Moon Bay and your locks, closers, or access control need attention, call (910) 714-4287. A live person answers 24 hours a day, every day of the year. You’ll get a written price before any work starts, a background-checked technician sent by name and photo, and a 365-day guarantee on the repair. That’s how we do every job in Half Moon Bay.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Half Moon Bay and the surrounding coastside.






