Why local Walnut experience matters
Walnut has its own personality, and our service approach reflects it.
Quick access to CA-60 and CA-57 means our nearest van can usually clear the freeway and reach you fast — even at peak traffic times.
We dispatch across every Walnut ZIP — 91788, 91789 — and our techs know the residential street grid as well as the commercial corridors.
Cross-border jobs into Diamond Bar, Industry, West Covina are routine, so the same fast response applies if your address technically straddles a city line.
Older Walnut homes often have mortise or aging cylinder locks that need careful handling — drilling them is rarely the right answer the first time.
Why Walnut customers choose One & Only Locksmith
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.
Same crew, start to finish. Whether it's a 5-minute lockout or a multi-day master key system in Walnut, 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.
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 Walnut traffic, knows our nearest van, and gives you a real ETA.
Bonded and insured. Bonded & Insured. We can provide our certificate of insurance, W-9, and license info on request — useful for HOAs, property managers, insurance claims, and commercial procurement.
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.
What to expect when you call us in Walnut
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 Walnut 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 Installation-specific testing. Test alignment, throw, and key action.
Honest pricing for Walnut customers
We don't dodge pricing questions — here's how we think about it.
Standard lock installation calls in Walnut 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.
Volume work — apartment turnovers, master keying, multi-door rekeys, and access control — is priced more aggressively per door because the setup is shared. Ask us for a multi-door quote.
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.
Common scenarios in Walnut
Most lock installation calls in Walnut happen for one of a small number of reasons.
1. Your front door has a flimsy builder-grade lock.
2. You're upgrading to Grade 1 hardware.
3. You want a smart lock for your Airbnb.
4. A storm or break-in damaged the existing lock.
5. You added a new entry door, gate, or ADU.
Hardware we install in Walnut
Here's a snapshot of the hardware we install most in Walnut.
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.
Service coverage in Walnut
Our Walnut service area is the entire city.
ZIP codes covered: 91788, 91789.
Adjacent areas we routinely serve in the same trip: Diamond Bar, Industry, West Covina.
If you're in a gated community or HOA in Walnut, our dispatcher will coordinate guard-house access in advance so you're not waiting on us at the gate.
Get help in Walnut — fast
Live dispatcher 24/7. Most Walnut jobs reached in 15-30 minutes. Honest, written pricing on site. Bonded and insured.