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.
Locksmith in San Diego, CA
Locksmith work in San Diego, CA runs into things you don’t see in other cities: salt air chewing through exterior deadbolts within a few seasons, older Spanish-style and mid-century homes whose original lock hardware has been out of production for 30 years, and canyon-adjacent neighborhoods where a lockout at night means a real drive up winding roads. We’re Preston Locksmith & Security, and we handle residential and commercial locksmith, rekeying, and door lock repair across the city. Every job starts with a written price before any work begins, and you’ll know your technician’s live arrival time before they knock. Call (409) 405-4485 and a live person answers, 24/7.
Why San Diego Homes Are Different
San Diego’s coastal air is hard on locks. In Point Loma, Ocean Beach, and La Jolla, we regularly replace exterior deadbolts that have corroded from years of salt exposure. The mechanism still works one day, then the tailpiece snaps or the cylinder seizes the next. Homeowners near the water should expect to swap exterior hardware more often than inland, and choosing a marine-grade finish makes a measurable difference.
The housing stock matters too. Mission Hills, North Park, and Kensington are full of 1920s through 1950s homes with original mortise locksets that aren’t made anymore. You can’t just pop a modern deadbolt into those doors. The work requires retrofitting, custom strike plates, or sourcing compatible replacements. We keep repair parts in the van for older Schlage and Baldwin mortise units because we see them so often. In newer communities like Otay Ranch, Del Sur, and Civita, it’s the opposite: builder-grade Kwikset and Schlage hardware that works fine for a few years, then wears loose and needs tighter, better-installed replacements.
Terrain affects response too. From Chula Vista up through Kearny Mesa and down to Imperial Beach, we’re moving through neighborhoods with different parking rules, gate codes, and building access. Our dispatch coordinates locally from the San Diego office, and the technician tracks toward you with a live arrival time, so you’re not standing outside guessing.
Our Main San Diego Services
Most San Diego calls to us fall into two buckets: home lockouts and people who just bought a house or changed renters and want the locks rekeyed. Here’s what each looks like on the ground.
Commercial Locksmith in San Diego
Commercial work in San Diego means storefronts in Hillcrest and North Park, offices in Sorrento Valley and Mission Valley, and restaurants across the Gaslamp. We handle high-security cylinders, master key systems, access control hardware, and door closers. The salt air hits commercial storefront hardware just as hard as residential, especially roll-up doors and exposed panic bars near the coast. For commercial jobs, we survey first, give a written scope and flat per-lock price, then schedule the work. Commercial Locksmith in San Diego

Rekey Locks in San Diego
Rekeying means swapping the internal pins inside your existing lock cylinders so the old keys stop working. No new hardware needed. It’s the most common job we do for new homeowners in San Diego, and it’s faster and cheaper than replacing every lock. If you just closed on a house in Clairemont, Normal Heights, or Allied Gardens, assume someone else still has a key until you rekey. We can key all exterior doors to one key, and the price is in writing before we start. Rekey Locks in San Diego

Door Lock Repair in San Diego
Door lock repair in San Diego covers sticky deadbolts, latches that don’t line up with the strike plate, loose knobs, and cylinders that spin without engaging. In older homes, the issue is often decades of paint layers or a door that’s settled out of square. In coastal areas, corrosion is the usual culprit. We’ll tell you honestly whether a repair makes sense or if replacement is cheaper. Every repair carries our 365-Day Done Right Promise: if it’s not done right, we make it right. Door Lock Repair in San Diego

Residential Locksmith in San Diego
Residential locksmith calls in San Diego range from lockouts in Rancho Bernardo apartment complexes to full hardware upgrades in single-family homes in Scripps Ranch. We install deadbolts, handle sets, keyless entry pads, and smart locks on wood, fiberglass, and metal doors. If the hardware is worn or corroded, we’ll show you the problem before touching it, and the written price covers the entire job. Residential Locksmith in San Diego

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.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Diego
We’re trained and equipped to service Schlage, Kwikset, Medeco, and Abloy hardware, plus Yale, Baldwin, Mul-T-Lock, and Sargent. We stock common cylinders, pins, and tailpieces locally so most lock repairs and rekeys finish in one visit. See our brands for the full range.
Pricing for Locksmith in San Diego, CA
| Service | Typical range in San Diego |
|---|---|
| Rekey a standard lock (per cylinder) | $20 – $45 |
| Rekey a high-security lock (Medeco, Mul-T-Lock, Abloy) | $35 – $75 |
| House rekey (3 – 4 cylinders, one key) | $90 – $180 |
| Deadbolt installation (standard) | $65 – $120 |
| Smart lock installation | $95 – $180 |
| Door lock repair (latch, alignment, strike) | $65 – $140 |
| Lockout service (residential) | $75 – $160 |
| Commercial rekey (per cylinder) | $25 – $55 |
| High-security cylinder upgrade | $85 – $180 |
| Master key system setup (per lock) | $30 – $70 |
Coastal corrosion and older mortise hardware are the two biggest price drivers in San Diego. When a cylinder has seized from salt exposure or a 1930s mortise lock needs custom retrofitting, the labor runs higher than a straightforward swap. The price we quote on the phone is the price on the invoice. No call-out surcharge added on arrival, no last-minute upsell.
Neighborhoods We Serve in San Diego
Our San Diego dispatch covers the full city, from the coast to the inland mesas. Here’s a representative slice of where we work regularly:
- Point Loma and Ocean Beach – salt-air hardware corrosion and older beach bungalow locks
- North Park and Hillcrest – 1920s – 1940s homes with original mortise locksets and commercial storefronts
- Clairemont and Kearny Mesa – mid-century single-family homes and light commercial strips
- Mission Valley and Sorrento Valley – office buildings, apartments, and mixed-use commercial
- Otay Ranch and Del Sur – newer construction with builder-grade hardware that wears out early
In most San Diego neighborhoods, you’ll see a live arrival time within minutes of booking, and the technician will call if anything affects the ETA.
Service Area – Cities Near San Diego
We also serve several cities right around San Diego, including Coronado, CA, National City, CA, Chula Vista, CA, and Lemon Grove, CA. If you’re on the edge of the city line or just outside, give us a call and we’ll confirm coverage and a live arrival time before you commit.
Serving San Diego, CA - Our Local Coverage Area
We’re based in the San Diego 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 Locksmith in San Diego
Most residential and lockout calls in San Diego get a technician dispatched within 30 to 60 minutes, depending on your neighborhood and time of day. You’ll see a live trackable arrival time before anyone heads your way. Call (409) 405-4485 and a live person confirms the ETA on the spot.
For single-family homes you own, no. For condos, apartments, or HOA-governed communities, check your CC&Rs or lease. Many San Diego HOAs require matching finish styles or prior approval for visible hardware. We can provide the hardware specs you need to submit the request.
Yes. We give a written price before any work begins, and that’s the price on the invoice. No call-out surcharge added on arrival, no padding between the estimate and the bill. If the job needs something unexpected, we show you and get a new written approval first.
What happens when you call
- 1A real person answersNo phone trees - talk to a local locksmith pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Diego Customers Say
"Showed me how to rekey a lock myself for the next time."
- Omar W."Commercial office lock replacement. Booked in the app, got a confirmation and a text with ETA. Quick and tidy."
- Jake L."Re-pinned the locks at our rental. Convenient and quick."
- Tina D.






