Fast, Reliable Lock Installation & Rekey Across San Dimas
Lock installation and rekeying in San Dimas runs $120-$380 for most residential jobs, with same-day service available throughout the 91773 ZIP code and surrounding foothill neighborhoods. We’re local to the San Gabriel Valley, so our Lock Installation & Rekey team typically reaches San Dimas homes in 25-40 minutes, whether you’re in the historic Old Town core near Bonita Avenue or up in the equestrian estates along San Dimas Canyon Road. After 42 years serving this corridor, we know the difference between a standard tract-home rekey and a ranch gate dual-system setup - and we quote the real price before the truck rolls. Call (877) 664-8139 for a flat estimate.
Why Strongbox Lock & Safe Co. Is San Dimas’s Preferred Lock Installation & Rekey Company
San Dimas homeowners remember the last time a locksmith quoted $19 on the phone and handed them a $400 invoice. We don’t work that way. Our price is the price - quoted flat, in writing, before any work begins.
We’ve been serving San Dimas and the broader San Gabriel Valley for over 42 years. Our technicians are background-checked, uniformed, and present company ID at every door. The 90-Day Done Right Promise backs every job in writing: if something isn’t right, we come back. No paperwork to file, no argument.
A live person answers our phones 24/7, including nights, weekends, and holidays. No voicemail trees, no callback queues. When you call (877) 664-8139, you speak to someone who can dispatch a technician and quote your job on the spot.
We also understand San Dimas’s specific housing stock - the post-war tract homes with original Kwikset hardware, the older commercial buildings in Old Town with legacy mortise locksets, and the equestrian properties north of Foothill Boulevard with combined gate operator and pedestrian lock systems. That local knowledge saves time and prevents mismatched solutions.
Our Lock Installation & Rekey Services in San Dimas
Smart Lock Installation
San Dimas’s 1950s-1970s tract homes present a real challenge for smart lock retrofits. The original deadbolt bore holes are often smaller or irregularly placed compared to modern ANSI standards, and the door edge prep may lack the reinforced strike pocket a connected lock needs. We measure first, then recommend Schlage Encode Plus or Yale Assure Lock models that accommodate legacy door prep without oversized adapter plates that weaken the installation. For homes near Bonita Avenue with original mortise locksets, we assess whether a full retrofit or a mortise-to-cylindrical conversion makes more sense - and we quote both options upfront.

Keyless Entry Systems
Keyless entry is particularly popular with San Dimas’s equestrian property owners who need to access gates while handling horses or equipment. We install keypad and proximity systems that integrate with existing LiftMaster or Viking gate operators, or stand alone on pedestrian walk-through panels. The summer heat here - regularly pushing past 100°F - demands hardware rated for extended temperature ranges. We specify Baldwin or Yale commercial-grade keyless units for exposed gate installations, not residential-grade products that will fail in the thermal stress. Every keyless system we install in San Dimas is programmed on-site and documented with master codes you control.

Electronic Lock Installation
Electronic locks bridge the gap between traditional mechanical security and modern access control. In San Dimas, we see strong demand from both the older residential stock and the small commercial buildings along Arrow Highway. For homes with seasonal frame swelling from the mountain heat, we specify electronic locks with adjustable backsets and flexible mounting systems that tolerate minor door movement without binding. Our electronic lock installations include hands-on training - we don’t leave until you can add and delete codes confidently. And every unit carries our 90-Day Done Right Promise, backed in writing.

Biometric Lock Installation
Biometric locks - fingerprint readers, primarily - work well for San Dimas homeowners who want keyless access without code-sharing concerns. We recommend these for secondary properties, home offices, or specific interior doors rather than primary front entries, since fingerprint sensors can struggle with extreme temperature swings. For the equestrian estates with multiple family members or staff needing access, we often pair a biometric interior lock with a keypad or keyed exterior system, creating layered security that matches how the property actually functions.

Key Duplication
Key duplication in San Dimas isn’t always straightforward. The original Kwikset hardware in many tract homes uses pinning systems that modern big-box key machines don’t replicate accurately. We cut keys by code on precision equipment, test every copy in your lock before you leave, and can duplicate Medeco high-security keys, Mul-T-Lock dimple keys, and standard residential profiles. For the equestrian gate properties, we also duplicate gate-specific keys that match both the pedestrian lockset and the operator release - a common request that standard locksmiths often fumble.

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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Dimas
We stock and install Kwikset, Medeco, Yale, and Baldwin hardware from our San Gabriel Valley inventory, which means most San Dimas jobs don’t wait on parts orders. Kwikset covers the legacy hardware still common in local tract homes; Medeco and Yale provide the upgrade path for homeowners who want pick-resistant or connected options; Baldwin delivers the solid brass and forged construction that holds up to San Dimas’s thermal expansion cycles. We don’t push brands. We match the lock to the door, the exposure, and your actual security needs.
Common Lock Installation & Rekey Problems We See in San Dimas Homes
- Summer frame swelling misaligns legacy locks. San Dimas’s position in the mountain thermal pocket means 100°F+ days from late June through September. Wooden door frames expand, deadbolt strikes no longer line up, and original Kwikset locks bind or seize. We see this spike predictably every summer - and we fix it by realigning the strike, not just forcing the lock.
- Smart lock retrofits on 1960s door prep leave weak mounting. The original bore holes in San Dimas tract homes are often 1-3/8″ rather than the modern 2-1/8″ standard. An improperly adapted smart lock strips screws or leaves unsupported surface area. We assess prep integrity before recommending any connected hardware.
- Equestrian gate dual-system key mismatches. The pedestrian keyed lockset on a ranch gate often uses a different keyway than the vehicular operator’s manual release. Homeowners carry two keys, or worse, force the wrong key and jam the cylinder. We rekey both systems to a single master, or upgrade to a unified electronic solution.
- Old mortise locksets in Old Town commercial buildings. The historic core near Bonita Avenue has businesses still running original mortise hardware that modern locksmiths won’t touch. We service, rekey, and where appropriate convert these locksets - preserving the door’s integrity while bringing security current.
Pricing for Lock Installation & Rekey in San Dimas, CA
| Service | Typical Range in San Dimas |
|---|---|
| Standard residential rekey (per cylinder) | $120-$180 |
| Smart lock installation (retrofit, existing prep) | $220-$340 |
| Smart lock installation (new door prep required) | $280-$420 |
| Equestrian gate dual-system rekey | $180-$280 |
| Electronic/keypad lock installation | $260-$380 |
| Mortise lock service or conversion | $200-$340 |
| Key duplication (standard) | $4-$12 per key |
| Key duplication (high-security) | $18-$35 per key |
These are the prices we quote on the phone - the same prices on the invoice. What moves a job toward the higher end: new door prep on older San Dimas doors, high-security cylinders like Medeco or Mul-T-Lock, or equestrian gate systems requiring operator reprogramming. We don’t add trip charges for San Dimas calls, and we don’t upsell hardware you don’t need. Seniors and veterans receive a permanent 5% discount. Call (877) 664-8139 for a free estimate with no obligation.
We Also Serve Cities Near San Dimas
Our Lock Installation & Rekey in San Dimas coverage extends to neighboring communities including La Verne, Pomona, Glendora, and Covina. Each city gets the same flat-price quoting, same written guarantee, and same live-answer phones - though San Dimas’s equestrian properties and thermal-specific challenges keep us particularly busy in the 91773 ZIP.
Serving San Dimas, CA - Our Local Coverage Area
We’re based in the San Dimas 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 - Lock Installation & Rekey in San Dimas
Yes, but the original 1-3/8″ bore hole and shallow door edge prep often require professional adaptation. We use reinforced mounting plates and select smart lock models - Schlage Encode Plus and certain Yale configurations - designed to accommodate legacy door specs without compromising security. Call (877) 664-8139 and we’ll assess your specific door prep over the phone or in person, with a flat quote before any work begins.
The 100°F+ heat in San Dimas’s mountain thermal pocket swells wooden gate frames and jambs, misaligning the strike plate and binding the deadbolt. We see this every July through September. The fix is realigning the strike and often upgrading to a lock with more tolerant backset adjustment - not just lubricating a lock that’s mechanically sound but poorly positioned. If your gate is along San Dimas Canyon Road or another equestrian corridor, we also check whether the companion gate operator needs synchronization. Estimates are free.
You don’t have to. Many San Dimas equestrian properties run two independent systems - a LiftMaster or Viking operator with its own manual release key, plus a separate Kwikset or similar deadbolt on the pedestrian panel. We routinely rekey both to a single master, or replace the pedestrian lock with a keypad or electronic unit that integrates with the operator. One key, one code, or both - your choice, quoted flat. Call (877) 664-8139 to discuss your specific gate setup.
No - Kwikset and Schlage use different keyways and pinning systems that aren’t cross-compatible. What we can do: rekey your existing Kwikset hardware to a new key, or replace the Kwikset with a Schlage smart lock and rekey other Kwikset doors in your home to match your new Schlage key. We quote both paths clearly so you choose what fits your budget and security goals. Free estimates, no pressure.
A commercial-grade electronic or mechanical lock rated for extended temperature ranges - Baldwin or Yale for electronic, or a solid brass Medeco deadbolt for mechanical. Residential-grade hardware fails prematurely in San Dimas’s direct sun and thermal cycling. For gates with combined vehicular and pedestrian access, we often recommend a keypad on the operator plus a matching mechanical backup, or a unified electronic system. We’ll look at your specific exposure, gate construction, and daily use pattern, then quote the right solution flat. Call (877) 664-8139.
Ready for Lock Installation or Rekeying in San Dimas?
We’re here when you need us - 24/7, live answer, flat price quoted before the truck rolls. Whether it’s a stuck Kwikset in a 1960s tract home, a smart lock upgrade, or an equestrian gate system that needs unified access, our San Dimas technicians arrive prepared and identified. Every job carries the 90-Day Done Right Promise in writing. Call Strongbox Lock & Safe Co. at (877) 664-8139 for your free estimate today.
Written by Gil Navarro, Owner at Strongbox Lock & Safe Co., serving San Dimas and the San Gabriel Valley since 1982.