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 Residential Locksmith Across Los Altos
Locked out of your house on a quiet cul-de-sac in Los Altos? A residential locksmith call here usually means one of three things: an emergency lockout, a deadbolt that finally gave out, or an original 1960s lock that no longer turns. Most Los Altos jobs run $85 – $185 for a standard rekey and $120 – $275 for a lockout or lock replacement, with the full price agreed on the phone before our tech ever heads your way. We know the ranch homes, the long driveways, and the aging hardware that characterizes this city, and we answer the phone 24/7 at (409) 405-4485 with a live person who can give you a written price before dispatch.
Why Preston Locksmith & Security Is Los Altos’s Preferred Residential Locksmith Company
Kevin Yoon leads our team, and since 2008 we have built a reputation around one thing: doing exactly what we said we would do, at the price we quoted, by a tech you can identify the moment he steps out of the truck. Los Altos homeowners tend to ask harder questions than most, because they have been burned by bait pricing before. So we built our entire process around the answer: a written price before work begins, a live arrival link you can track, and before-and-after photos of every job. The Relay Visibility Guarantee is our standard, not an upsell. When you book with us, you see a live arrival time, you see who is coming, and the price on the invoice matches the price on the phone.
We are not a call-center that subcontracts to whoever is closest. Our techs are background-checked, uniformed, and trained specifically on the lock families common in Los Altos: Medeco high-security cylinders, Baldwin mortise hardware, Schlage and Kwikset deadbolts, and the older Yale and Sargent units that still hang on mid-century doors here. You will never watch a tech fumble with a mortise lock body and reach for a drill unless the hardware truly warrants it. And every repair is covered by the 365-Day Done Right Promise: if it is not done right, we make it right, including a free second visit if a repair fails.
House Key Locksmith in Los Altos
House key locksmith work in Los Altos covers anything from cutting a fresh set of keys after a family member locks themselves out, to rekeying every exterior lock after a housekeeper, contractor, or ex-partner had access. Rekeying, for the uninitiated, is swapping the internal pins in a cylinder so the old keys no longer turn the lock, but the hardware itself stays in place. No new lock to buy, no matching cuts to make. It is often the smarter first move when a key goes missing or a tenant leaves. A standard rekey in Los Altos runs $85 – $150 for the first cylinder and $15 – $25 per additional cylinder, depending on the cylinder type, with the written price confirmed before our tech steps onto your doorstep.
Rekeying Existing Hardware
Older Schlage or Kwikset cylinders usually rekey cleanly. Medeco and Mul-T-Lock cylinders take measured programming and cost more, and we stock the pins and tools in the truck to do it on site. You get every old key invalidated and new keys cut to match, then a photo of the completed cylinder with the invoice.
New Key Cutting Services
We cut standard house keys, high-security Medeco keys (with proof of ownership), and dimple keys like Mul-T-Lock. If your key has seen better days, it is faster and cheaper to cut a fresh one from the code on a working original than to replace the entire lock. Most Los Altos key-cutting calls are done in under 20 minutes at the door.
House Lockout in Los Altos
A house lockout in Los Altos is our most common overnight call, and the first thing we tell you is that drilling the lock is almost always avoidable. We use non-destructive entry tools: a pick set, an under-door tool, a plug spinner, or a bypass of the latch, depending on what is on the door. Most lockouts at Los Altos homes run $120 – $225, including the service call and entry, and the majority do not require any hardware replacement. The price is set before dispatch, and there is no added call-out surcharge when the tech arrives.
Non-Destructive Entry Methods
On a Kwikset or Schlage pin-tumbler lock, we pick or shim the cylinder. On anti-bump or higher-security cylinders, we go through the latch with a flexible tool. The only time drilling is justified is when the cylinder is physically seized, and even then, replacing just the cylinder, not the whole lock body, is usually all it needs.
What Happens When We Arrive
Before we touch the door, you see a uniformed tech with a matching ID badge and a dispatch confirmation on your phone. The tech re-confirms the written price, takes a before-photo of the door, performs the entry, then walks the door with you to confirm it latches and locks properly from both sides. After-photo, digital receipt, done.
Trusted Brands We Service in Los Altos
We are set up to service Schlage, Kwikset, Medeco, Yale, Baldwin, Mul-T-Lock, Sargent, and Abloy hardware, from basic residential deadbolts up to high-security cylinders. That matters in Los Altos because so many homes carry mixed hardware: a Baldwin mortise on the front door, a Kwikset on the garage side, maybe a Medeco on a wine-room door. We carry the pinning kits, tailpieces, and cylinders for those brands in the truck, so a rekey or cylinder swap is done on the first visit, not ordered Residential Locksmith parts that take days to arrive. And we will tell you straight when an old Yale or Sargent unit is not worth rekeying and should be replaced with a new ANSI Grade 1 lock.
Common Residential Locksmith Problems We See in Los Altos Homes
- Original mortise locks on 1950s and 1960s ranch homes. Los Altos has one of the highest concentrations of these mid-century structures in Santa Clara County, and their original mortise bodies often outlive their thumb-turn internals. We can re-key and repair the original cylinder, then add a modern ANSI Grade 1 deadbolt above it for actual security without disturbing the vintage faceplate.
- Builder-grade deadbolts that have worn smooth. Many Los Altos homes built between 1955 and 1975 still carry the original pin-and-tumbler deadbolt that came with the house. The cuts in the key wear down, the pins drift, and one day the key will not turn at all. We see this regularly around the Loyola Corners and North Los Altos areas.
- Lock hardware that bakes in the afternoon sun. West-facing front doors in Los Altos take direct summer sun for hours, and we have seen Kwikset and Schlage cylinders with internal lubricant baked dry, making the key stick. A good clean and graphite-free lubricant often restores them; if not, a cylinder swap is quick and cheaper than a full lock replacement.
- Long driveways and set-back front doors. Lots in Los Altos are deep, and many front doors cannot be seen from the street. That makes lockout calls here different from a dense urban market: the tech walking your driveway has no natural witness, so we make identity verification part of the booking process, not an afterthought.
Pricing for Residential Locksmith in Los Altos, CA
Here are honest ranges for Los Altos, and these are the numbers we quote on the phone before dispatch. A standard lockout runs $120 – $225. A rekey runs $85 – $150 for the first cylinder, then $15 – $25 per additional cylinder. A deadbolt installation runs $95 – $180 for the labor plus the cost of the hardware, with decent Schlage and Kwikset ANSI Grade 1 units usually $40 – $80 from the truck. A full lock replacement, including the new lock, runs $125 – $275 depending on the cylinder and finish. What changes the quote is the hardware on your door: a Baldwin mortise costs more to re-key than a Schlage, and a high-security Medeco cylinder has program costs. You get the full written price on the phone, and it is the price on the invoice. There is no separate dispatch fee and no arrival surcharge. Call (409) 405-4485 and we will quote it in two minutes.
We Also Serve Cities Near Los Altos
Our crews cover Los Altos plus the surrounding Peninsula and South Bay communities, including Mountain View, Stanford, Palo Alto, and Portola Valley. If you are right on the city line near Rancho San Antonio or heading out toward I-280, you are still well inside our normal response area.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 Residential Locksmith in Los Altos
Yes. You will get a written price on the phone before the tech leaves the shop, and that is the price on the invoice. We will not send a tech to your Los Altos address and then reprice the job when he sees the hardware. If the lock is original 1960s hardware, we ask a few extra questions about brand and condition on the call so the quote matches what is actually on the door, not a mythical low number. Call (409) 405-4485 and we will give you the range and confirm it in writing.
Most original 1960s cylinders can be rekeyed if they are not mechanically worn or seized. We will try to preserve the original hardware first. If the cylinder is too far gone internally, we replace just the cylinder, usually for the same or less than a full lock replacement. The 365-Day Done Right Promise applies to either outcome. We will show you the worn internals in a photo before you decide, which is what we did for a homeowner on University Avenue whose original mortise thumb-turn had frozen solid.
Before the tech rings the bell, you will have a dispatch confirmation with the tech’s first name, a live arrival link, and a photo of the uniform. When the doorbell rings, the clothes, the badge, and the truck match that confirmation. Los Altos has too many long, private driveways for a homeowner to wave in a stranger, and we built our verification process around exactly that. If anything does not match, call the office back at (409) 405-4485.
Almost never. Drilling is the last resort for a cylinder that is physically seized or damaged, not the go-to for a routine lockout. Most Los Altos lockouts are opened non-destructively with lock-picking, shimming, or an under-door tool. If drilling is ever necessary, we will tell you before we do it, show you why, and replace the cylinder on the spot. Most lockouts end with the original lock intact and working.
Yes. A master key system uses pinned cylinders so one key opens only a single door, while your key opens all of them. We do this on Los Altos homes all the time, particularly on larger properties with pool houses, detached garages, or separate ADUs. We survey the doors first, provide a written scope with a flat per-cylinder price, and schedule the work. The pricing is agreed before anything is pinned, and the system is documented so rekeys later are controlled. Call (409) 405-4485 for a survey appointment.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Los Altos with a crew that arrives on time, proves it, and stands behind every lock they leave behind.