Lock Repair in Monrovia, CA.

Working as a locksmith in Monrovia for 15+ years has taught us a few things about this part of San Gabriel Valley.

Around Old Town Monrovia, we see a steady volume of residential lockouts and rekey calls, especially after home sales close.

Quick access to I-210 means our nearest van can usually clear the freeway and reach you fast — even at peak traffic times.

We dispatch across every Monrovia ZIP — 91016, 91017 — and our techs know the residential street grid as well as the commercial corridors.

Cross-border jobs into Arcadia, Duarte, Bradbury are routine, so the same fast response applies if your address technically straddles a city line.

Older Monrovia homes often have mortise or aging cylinder locks that need careful handling — drilling them is rarely the right answer the first time.

Mobile, fully-stocked vans. We don't hand you a quote and then "go get the parts." Our trucks carry deadbolts, strikes, smart locks, panic bars, transponder blanks, programmers, extractors, and more — first-visit completion on the vast majority of jobs.

Local knowledge of Monrovia. Older homes have older mortise locks. Newer high-rises have proprietary cylinders. Cluster mailboxes have specific USPS standards. We know what's typical for the San Gabriel Valley and bring the right hardware on the first trip.

Live human dispatcher, 24/7. Call (888) 492-0666 and a real person picks up. No phone trees, no offshore call centers, no callback queues. The dispatcher knows Monrovia traffic, knows our nearest van, and gives you a real ETA.

Same crew, start to finish. Whether it's a 5-minute lockout or a multi-day master key system in Monrovia, the same technician owns your job from arrival to handoff. No "we'll send another guy out for that part."

Transparent pricing. You get a quote on the phone and a written quote on site before any work starts. We do not have a "minimum service charge" hidden in fine print, and we do not run the bait-and-switch game some pop-up locksmiths play.

Real reviews, real reputation. Over 1,286 verified reviews and a 4.9-star average. We've built our business one neighbor at a time and we don't gamble that on a single bad job.

Transparency is the whole point — here's what your call to One & Only Locksmith looks like end to end.

1. You call (888) 492-0666. A live dispatcher picks up. They confirm the address, the issue, and any specifics ("front door deadbolt, Schlage, brushed nickel"). You'll get a clear ETA and a price range.

2. The nearest van rolls. We dispatch the closest fully-stocked technician to your Monrovia location. You'll get a text or call when they're a few minutes out.

3. ID and authority verified. For lockouts and rekeys, we verify ownership or authority before opening anything. This protects you and us.

4. On-site assessment. Your tech inspects the lock, door, frame, hardware, and any related issues. We'll explain what we recommend and why.

5. Written, signed quote. Before any work begins, you get a clear written quote. If you don't want to proceed, you don't owe a dime.

6. Clean work. Hardware is installed straight, square, and to manufacturer spec. Strikes are reinforced into the king stud where appropriate. Old hardware is removed and disposed of.

7. Test and tour. We test the lock or system top to bottom, walk you through any new keys/codes/fobs, and answer questions.

8. Receipt and warranty. Itemized receipt by email, plus our workmanship warranty on every install.

9. Lock Repair-specific testing. Verify smooth, full-throw operation.

Transparency is more useful than a fake "starting at" number.

Standard lock repair calls in Monrovia are quoted by our dispatcher when you call. The number depends on a few real variables: the lock or system involved, time of day, distance from the nearest van, and any parts required. Once our technician is on site and has eyes on the job, you get a written quote — and you don't pay anything until you sign off.

Our pricing is in line with other reputable, licensed locksmiths in San Gabriel Valley. If a quote sounds dramatically lower than ours, it's almost always going to climb dramatically once a technician is on site.

Payment: Cash, Credit Card, Debit Card, Apple Pay, Google Pay. We email an itemized receipt the same day, useful for insurance claims, expense reports, or property management records.

If any of these sound familiar, you're in the right place.

1. The deadbolt is hard to throw the last 1/4".

2. Your knob spins freely without retracting.

3. Cold weather makes the lock stick.

4. The key turns but the bolt doesn't fully extend.

5. A door has dropped on its hinges over time.

Our trucks carry hardware from the brands that actually hold up in San Gabriel Valley.

Residential locks: Schlage B60/B62/Encode, Kwikset 980/SmartCode, Yale Assure, Baldwin, Emtek, Medeco, Mul-T-Lock, Level.

Smart locks & access control: August, Schlage Encode, Yale Assure SL, Kwikset Halo, Level Bolt, Salto KS, Brivo, Kisi, Openpath. Mobile, fob, and PIN credentials.

We dispatch across every neighborhood and ZIP code in Monrovia.

ZIP codes covered: 91016, 91017.

Adjacent areas we routinely serve in the same trip: Arcadia, Duarte, Bradbury.

If you're in a gated community or HOA in Monrovia, our dispatcher will coordinate guard-house access in advance so you're not waiting on us at the gate.

One call, one trip, one technician — start to finish. Real humans answer (888) 492-0666 every hour of every day.