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 Highlands
Commercial locksmith work in Highlands follows a different calendar than the rest of the Inland Empire. Between the 105°F summers, the Santa Ana grit, and a housing stock that runs from 1950s ranch builds to post-Old Fire rebuilds, the hardware on commercial doors here takes a beating most neighboring cities never see. Dunmore Locksmith sends background-checked, photo-badged technicians to every commercial property in Highlands, from Base Line to the 210 corridor. The quote you get on the phone is the price on your invoice, in writing, before we dispatch. Call (910) 714-4287 for a free estimate.
Why Dunmore Locksmith Is Highlands’s Preferred Commercial Locksmith Company
Highlands property managers call us because we know what a Santa Ana event does to a deadbolt before they describe it. We have seen warped aluminum frames on eastern-facing storefronts along Base Line, seized cylinders on warehouse roll-up doors, and strike plates that stopped catching because the steel expanded just enough over a 110°F week to throw the alignment out. That local pattern recognition means we arrive with the right parts the first time, not after a second trip.
Our technicians are identity-verified, uniformed, and sent to you by name and photo before the visit. Every one of them carries a photo ID badge and shows it at the door. That is The Threshold Standard, and it matters even more on a commercial call where the person opening up may be a night manager, a new hire, or someone’s relative covering a shift. They should know exactly who is walking up before they unlock anything.
Every commercial repair we complete in Highlands carries the 365-Day Done Right Promise. If the repair fails within a year, we return at no charge. Written guarantee, not a verbal promise. Since 2007, as part of the Threshold Group family of independent local locksmith businesses, that guarantee has been stamped on every job.
Commercial Door Repair in Highlands
Commercial Door Repair in Highlands usually means one of three things: re-hanging, re-latching, or re-aligning. The specific twist here is thermal expansion. Highland sits at roughly 1,200 feet at the base of the San Bernardino Mountains, and the radiant heat from the foothills warms aluminum frames and steel strike plates just enough each summer that doors that closed perfectly in March stop latching by August. We replace warped strike plates with heavier stainless, adjust hinges, and re-set closers so the door seals clean and latches without slamming. Re-hanging a commercial door with hinge adjustment typically runs $240 – $400 depending on frame condition. Strike plate replacement and realignment on a commercial door runs $120 – $180.
Fast Response for Business Interruptions
A commercial door that will not latch is an open invitation. We schedule Highlands commercial door repair calls the same day in most cases because we understand a propped-open back door is not something a business owner wants to leave overnight. Our dispatchers are live humans, not voicemail, any hour you call.
Hardware That Actually Holds Up Here
We stock and install commercial-grade door hardware rated for the Inland Empire’s thermal swings: heavy stainless strike plates, ANSI Grade 1 cylindrical locks, and closers with adjustable backcheck. When a door needs repeated realignment, we recommend upgrading rather than re-bending the same fatigued metal.
Master Key System in Highlands
Master Key System work in Highlands typically fits multi-tenant buildings, medical offices, and small retail strips where different staff need different access levels from one front door system. The goal is simple: your manager’s key opens everything, your staff key opens only what they need, and you never have to carry a ring of nine different keys. We design, cut, and rekey master key systems for buildings across Highlands, from older commercial blocks near San Bernardino to newer construction north of Base Line. A basic master key system setup for a small office suite with four to eight doors typically runs $450 – $800 depending on cylinder count and keying depth.
Rekeying Without Replacing Every Lock
Most Highlands properties do not need new locks. If the existing cylinders are in good mechanical shape, we rekey the internal pins to a new master key chart and cut fresh keys. That is far cheaper than a full hardware swap, and you keep the door hardware that already matches your building.
Key Control and Written Schedules
Every master key system we install in Highlands comes with a written key schedule that documents who holds which key and what each one opens. When an employee leaves, rekeying to a new master or sub-master is a same-day job in most cases. No new hardware required, just a new pinning and fresh keys.
Trusted Brands We Service in Highlands
We are factory-authorized to service and install Schlage, Medeco, and Kwikset commercial hardware, plus high-security cylinders from Abloy and Mul-T-Lock when a Highlands property needs restricted keyways that cannot be duplicated at a hardware store. For most commercial doors in this area, we recommend Schlage or Medeco commercial-grade cylinders paired with stainless strikes, because those brands hold up better under heat cycling and grit exposure than builder-grade alternatives. We keep common Schlage and Kwikset commercial parts stocked in our vans serving Highlands specifically, so turnaround is usually same-visit rather than a parts-order delay.
Common Commercial Locksmith Problems We See in Highlands Homes
- Seized deadbolt cylinders from Santa Ana grit. Fine mountain debris gets driven into keyways every autumn, and a lock that worked in July freezes by October. We extract, clean, and lubricate the cylinder, and if the pins are worn past service life we rekey to fresh hardware.
- Warped strike plates from seasonal thermal expansion. Highland’s 1,200-foot elevation means intense radiant heat every summer. Steel strikes expand and stop letting the latch seat. We swap in heavier stainless and realign the frame so the door closes without slamming.
- Builder-grade Kwikset hardware on post-Old Fire rebuilds. Foothill-adjacent commercial properties built after 2003 often still have original builder locksets now 15 – 20 years old. Heat cycling has worn the pin and tumbler mechanisms past their service life, and they fail quietly.
- Misaligned aluminum frames on storefront doors. Aluminum expands more than steel under Highland’s summer sun. Storefront doors with aluminum frames routinely drift out of alignment, and a closer adjustment alone will not fix it. We re-align and re-anchor the frame hardware.
Pricing for Commercial Locksmith in Highlands, CA
We Also Serve Cities Near Highlands
Beyond our commercial work across Highlands, our crews handle jobs in Los Angeles, San Diego, San Jose, and San Francisco. If your business has multiple locations in Southern California, one call to our Commercial Locksmith team covers all of them. We coordinate scheduling from our Los Angeles office, with technicians dispatched locally to each site. Every job carries the same 365-Day Done Right Promise.
Serving Highlands, CA - Our Local Coverage Area
We’re based in the Highlands 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 Highlands
Why do commercial locks in Highland seize up more than in Redlands or Loma Linda?
The difference is elevation and wind. Highland sits at roughly 1,200 feet at the base of the San Bernardino Mountains, where summer radiant heat bakes door hardware and autumn Santa Ana winds drive fine mountain grit into keyways. Redlands and Loma Linda sit lower and get less concentrated wind-blown debris. The result here is a lock cylinder that seizes from grit packed into the pins, not from normal wear. That means Highland commercial locks need cleaning and re-keying more often, even when nothing has broken. Call (910) 714-4287 if a key is starting to stick in the cylinder.
What lock hardware actually holds up on a commercial property in Highland?
We recommend ANSI Grade 1 commercial locksets with stainless steel or marine-grade strike plates, paired with Schlage or Medeco cylinders. Those brands and materials resist both the thermal expansion we see every summer and the grit intrusion from Santa Ana events. Builder-grade Kwikset hardware will fail sooner here, especially if the door faces east or sits on an exposed corner. For high-security or restricted keyway needs, Abloy and Mul-T-Lock cylinders are the best choices for Highlands commercial properties.
Can you rekey a commercial master key system without replacing every lock?
Yes. If the existing cylinders are mechanically sound, we rekey the internal pins to a new master key chart and cut fresh keys. You keep the existing door hardware, which saves hundreds of dollars compared to a full lock replacement. Rekeying a master key system in Highlands typically runs $75 – $130 per cylinder depending on count and keying depth, and the work is usually completed the same day.
How does Highland’s thermal cycling affect commercial door repair?
The 105°F-plus summer heat and the cooler nights at this elevation cause aluminum frames and steel strike plates to expand and contract repeatedly. Over a few seasons, that cycling warps metal and throws door alignment off so the latch no longer seats. A door that closes fine in May may not latch by August. The fix is usually a heavier stainless steel strike plate and a frame realignment, not just a closer adjustment. This is the most common commercial door repair we handle in Highlands.
What should a Highland property manager do after a Santa Ana wind event?
Check every exterior door before the first cold snap. Fine grit blown into keyways during a Santa Ana event will eventually seize the cylinder, even if the key still turns today. Walk the property, try every key, and look for any door that needs a slam to latch. If anything sticks or feels gritty, call (910) 714-4287. We will clean, lubricate, and rekey as needed before a tenant gets locked out at the worst possible time.
We got a call from a property manager on Base Line north of the 210, where a 2005 post-Old Fire rebuild had a builder-grade Kwikset deadbolt that had been heat-cycling for 15 years. The aluminum strike plate had warped and the cylinder was packed with wind-driven grit. Our tech used non-destructive entry to get the tenant back in, then rekeyed the pin and tumbler to a fresh key and swapped in an ANSI Grade 1 stainless steel strike plate and a marine-grade lock cylinder. The door now seals cleanly through the next Santa Ana event, and the manager scheduled the rest of the complex for the same upgrade.
If you manage commercial property in Highlands, call Dunmore Locksmith at (910) 714-4287. A live person answers, the quote is in writing before anyone is dispatched, and every job is covered for a full year. If it is not done right, we make it right, at no charge.
Written by Perry Osgood, Owner at Dunmore Locksmith, serving Highlands since 2007.






