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 Rekey Locks Across Sunnyside
Rekeying a lock in Sunnyside typically runs $18 to $35 per cylinder for standard Schlage or Kwikset hardware, and most single-family home jobs finish in under an hour. The work involves swapping the internal pins inside the lock cylinder so your old keys stop working, without replacing the hardware itself. If you’ve just moved into a place off Monterey Boulevard, ended a rental agreement, or lost track of who has a spare key, call (409) 405-4485 and we’ll give you a written price before anyone is dispatched.
Sunnyside sits right on the San Francisco side of the Daly City border, and that geography matters more than most people realize. Blocks here mix pre-war single-family homes with newer multi-unit buildings, which means one street address often hides multiple units, multiple doors, and multiple people who might have keys. We know to ask which unit and which door before touching a pin. That local habit saves everyone time, and it’s the kind of thing you only learn by doing lock work on these actual streets.
Why Preston Locksmith & Security Is Sunnyside’s Preferred Rekey Locks Company
We’ve been doing locksmith work since 2008, and the way we run a rekey in Sunnyside is built around one promise: the price is in writing before a single tool leaves the bag. No vague hourly rate, no bill that swells on the porch. Kevin Yoon leads our crew, and every technician who shows up at a Sunnyside door is background-checked, uniformed, and carrying a live arrival time you can track from your phone. You know who’s coming and when, before they knock.
The Relay Visibility Guarantee is what that looks like in practice. Written price first. Live trackable arrival. Before-and-after photos of the lock work. A written guarantee on every repair, stamped and handed to you. If the rekey fails inside a year, we come back and make it right at no charge under the 365-Day Done Right Promise. That’s the standard we hold for every single job in Sunnyside, from a one-bedroom rental off Edna Street to a commercial storefront on Monterey Boulevard.
We answer the phone with a live person, 24/7. No voicemail trees, no callback queue. When you call (409) 405-4485 to ask about a rekey in Sunnyside, a real human picks up and tells you what it will cost in dollars, not ranges that could mean anything.
Keyed Alike in Sunnyside
Keyed alike means exactly what it sounds like: we set multiple locks to open with the same key. A Sunnyside homeowner with three exterior doors and a garage side door can carry one key instead of four. We pin each cylinder to a single keyway pattern so the cuts on one key turn every lock in the set. For a typical Sunnyside house with two or three entry doors, keying them alike runs $18 to $35 per cylinder, the same as a standard rekey, and the whole job usually takes under 90 minutes.
When home owners ask for this
Most calls come after a move-in, after a bad tenant turnover, or after someone realizes they’ve got five different keys on one ring and no idea which one opens what. On a duplex near Monterey Boulevard, a landlord we worked with had two exterior unit doors and a shared entry. We keyed both unit doors alike for the owner and set the shared entry on a separate key so the landlord could keep control of common spaces. That’s the kind of setup that makes sense for Sunnyside’s mixed housing stock.
What it costs and how long it takes
Figure $18 to $35 per cylinder for standard Schlage or Kwikset locks. If the locks are Medeco or another high-security brand, the price shifts up, and we’ll tell you exactly how much before we start. The work itself is quick: pulling each lock out, swapping the pin stacks, and reinserting the cylinder. We then test every key at the door, in front of you, before we call it done.
If you need a firm quote for keyed alike work in Sunnyside, call (409) 405-4485. We’ll give you a written number over the phone.
Rekey Deadbolt in Sunnyside
Rekeying a deadbolt in Sunnyside means taking the cylinder out of your existing deadbolt, replacing the internal pin and tumbler stack, and putting it back so old keys no longer turn it. You keep the same deadbolt housing and hardware. Cost runs $18 to $35 per deadbolt for standard Schlage or Kwikset models, and a single deadbolt rekey at a Sunnyside home usually takes 20 to 30 minutes from doorbell to testing.
Why deadbolts need care on older Sunnyside housing
Pre-1990s Sunnyside homes often still have original deadbolts, and those cylinders can be worn. A cheap rekey that only swaps the top pins and leaves the bottom pins alone will let old keys still work. That’s a failure mode we see in Sunnyside more than newer neighborhoods because the housing stock is older and the locks have decades of use on them. We change the complete pin stack every time, and we test the old key right there at the door. If it turns, we’re not done.
What to do if you’re not sure what brand you have
You don’t need to know. We service Schlage, Kwikset, Yale, Baldwin, Medeco, Mul-T-Lock, Sargent, and Abloy. When you call, we’ll ask what the lock looks like so we bring the right pin kit. The price is confirmed in writing before anyone leaves our shop, and that price is the price on your invoice, even if the lock turns out to be a brand we didn’t discuss. Call (409) 405-4485 for a rekey deadbolt quote in Sunnyside.
Trusted Brands We Service in Sunnyside
We stock pin kits and spare parts for Schlage, Kwikset, and Medeco at our service vehicles serving Sunnyside, which means a standard rekey doesn’t wait on a parts run. Kwikset is everywhere in Sunnyside rentals because it’s affordable and fast to work on. Schlage is the deadbolt you see on homes where the owner wanted something sturdier. Medeco shows up less often but when it does, it demands precision and special pin sets, and we have them. Same-day rekey turnaround is the norm on all three, and we quote each brand’s work by the cylinder, never by the hour.
Common Rekey Locks Problems We See in Sunnyside Homes
- Phone quotes that become porch replacements. A homeowner gets a low rekey quote, then the tech arrives and says the lock is too worn and it needs a $180 replacement. We avoid that by asking about your lock’s age and brand on the phone, and confirming a written price before dispatch. If a replacement is needed, you’ll know before anyone leaves the shop.
- Old keys still working after a cheap rekey. Some rekey jobs only change top pins, leaving bottom pins untouched. On older Sunnyside locks, that old key can still turn. We replace the full pin stack and test every old key at the door before we leave.
- Disputes between landlords and tenants over authorization. Because many Sunnyside buildings have multiple units at one address, we confirm who is authorized to approve a rekey before we touch a pin. No signed work order, no work. That protects the owner, the tenant, and our tech.
- Worn cylinders on pre-1990s hardware. Decades of fog and cool, damp air off the Pacific takes a toll on lock internals. We see pitted pins and sticky tumblers in older Sunnyside locks more often than in newer builds. A full pin swap usually solves it, and we’ll tell you honestly if the cylinder itself is too far gone.
Pricing for Rekey Locks in Sunnyside, CA
A standard rekey in Sunnyside runs $18 to $35 per cylinder for Schlage, Kwikset, and Yale hardware. A full single-family home with three exterior locks typically lands between $54 and $105. Keyed alike work costs the same per cylinder, with no extra charge for the keying. High-security brands like Medeco or Mul-T-Lock run more, and we’ll quote those by phone before anything is scheduled.
What affects the price: the number of cylinders, the brand, and whether the lock is accessible and functional. We don’t charge a call-out fee on top of the quoted price, and we don’t add a surcharge when we arrive. The number you agree to on the phone is the number on your invoice. Call (409) 405-4485 for a free estimate on rekey work in Sunnyside, and we’ll put it in writing before anyone is dispatched.
We Also Serve Cities Near Sunnyside
Our Rekey Locks team covers Sunnyside and the surrounding Bay Area. If you’re in Los Angeles, San Diego, San Jose, or San Francisco, we run the same written-price, trackable-arrival process there. Each job gets the Relay Visibility Guarantee, no matter the city.
Serving Sunnyside, CA - Our Local Coverage Area
We’re based in the Sunnyside 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 Rekey Locks in Sunnyside
Yes. We quote $18 to $35 per cylinder for standard Schlage, Kwikset, and Yale locks, and we’ll ask you to describe what your lock looks like so we can confirm the brand before dispatch. The price we agree on the phone is the price on the invoice. If your lock turns out to be a different brand than we discussed, we’ll still honor that written quote or tell you the new number before any work begins. Call (409) 405-4485 and we’ll walk you through it.
Yes, with one exception. We can key all the unit doors to a single key and leave the shared entry on its own key so common spaces stay controlled. This is a common setup on Monterey Boulevard and the surrounding blocks where landlords want one key for tenant units and a separate key for the building. We’ll confirm exactly which doors should be on which key before we start, and the written price covers each cylinder individually.
Most residential rekey jobs in Sunnyside take 30 to 60 minutes from arrival to final testing. A single deadbolt rekey is often done in 20 minutes. Keyed alike work across three or four locks runs closer to 90 minutes. We test every old key at the door before we leave, so you see proof the old keys are dead. Call (409) 405-4485 and we’ll give you a realistic time window for your specific address.
Every Preston technician arrives in uniform, shows identification, and arrives with a live trackable arrival time you received before they left the shop. You’ll see a photo of who is coming before they get there. We also send before-and-after photos of the lock work and a written guarantee with every job. If someone shows up at your Sunnyside door claiming to be from Preston without a uniform and without a live arrival link, call us at (409) 405-4485 to verify.
A rekey changes the internal pins inside the lock cylinder, not the lock body or the hardware. The old keys stop working because the pin stack no longer matches their cuts. We keep the same lock, the same deadbolt, and the same keyhole. This is the fastest and cheapest way to invalidate old keys when you move into a Sunnyside rental or after a tenant leaves. Call (409) 405-4485 for a free rekey estimate in Sunnyside.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Sunnyside since 2008.






