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 San Mateo
If you’re locked out of your San Mateo home or need to change the locks after moving into a new place near Central Park, we can typically have a uniformed technician at your door in 30 to 45 minutes. The price is always in writing before anyone is dispatched, and it’s the same price on the invoice. Call (409) 405-4485 and you’ll get a live person, not a voicemail tree.
We work across San Mateo every week: the pre-war bungalows along the El Camino corridor, the 1960s and 70s tract homes up in the San Mateo Highlands, and the newer condos around Bay Meadows. Each of those neighborhoods has different lock hardware, different door construction, and different failure patterns. Knowing that before we arrive cuts the job time in half and keeps the price honest.
Why Preston Locksmith & Security Is San Mateo’s Preferred Residential Locksmith Company
Preston Locksmith & Security has been operating since 2008, and our Residential Locksmith team handles more San Mateo door jobs than any other single category. Every technician is background-checked and arrives in uniform with a photo ID clipped to the belt. When you book, we send a live trackable arrival time, so you watch our van move toward your street the same way you’d track a rideshare.
The biggest difference our San Mateo customers tell us about isn’t speed. It’s the written price. Before a single tool comes out of the bag, you’ll see the full job cost on paper. If the repair fails within 365 days, the Done Right Promise means we come back free and make it right. No argument, no requote, no new invoice.
We service a wide mix of housing stock in San Mateo, from the 1920s bungalows near Hayward Park to the hillside homes above Hillsdale, and we stock the lock cylinders and parts those older doors actually need. A generic locksmith showing up with only modern deadbolts isn’t prepared for this city’s older inventory. We are.
Lost Key Replacement in San Mateo
Lost Key Replacement in San Mateo usually means one of two situations: you’ve misplaced your house key and can’t get in, or you’ve lost one and worry someone else might have found it. If you only need to regain access, a non-destructive entry in San Mateo typically runs $95 to $160. If you want our Rekey Locks in San Mateo service so old keys stop working, the full fix runs $180 to $280 including the service call.
When you call about a lost key, we ask a few quick questions before dispatch: whether the door is deadbolted, whether you have a smart lock or traditional cylinder, and whether you need us at the door or just need a written price first. That conversation keeps us from sending a tech out blind.
Rekeying After a Missing Key
Rekeying means swapping the internal pins inside the lock body, so the old key physically cannot turn the cylinder anymore. No new hardware needed. It’s the right call if you lost a key around San Mateo, whether at a restaurant near downtown or after a move in the Shoreview area, because it revokes access for every missing copy at once.
Replacing Worn Cylinders
Sometimes the key isn’t lost so much as the lock is tired. If your key is hard to turn or sticks halfway, Door Lock Repair in San Mateo may be needed because the cylinder could be past its useful life. We’ll show you the wear, quote a replacement before work starts, and have the new cylinder keyed to match your existing set if the rest of the house is on the same key.
House Key Locksmith in San Mateo
House Key Locksmith calls in San Mateo are rarely just about cutting a duplicate. A typical request is a key that snaps off in the lock, a key that works the deadbolt but not the doorknob, or a spare that the hardware store cut badly and now won’t turn at all. Extracting a broken key from a door lock in San Mateo runs $95 to $180, depending on how deep the piece is seated and what cylinder type it broke inside.
If you need a reliable set of duplicate keys, we cut them on-site with calibrated equipment for $5 to $12 per key depending on the blank. That includes popular profiles like Schlage SC1 and Kwikset KW1, as well as restricted blanks that bigger hardware stores in San Mateo won’t stock.
Key Extraction Without Damaging the Cylinder
Broken keys in a lock cylinder are a constant around San Mateo, especially in the older mortise locks on pre-war doors where the keyways are narrow and the metal fatigues over decades. We extract the fragment with a broken-key tool, then test the cylinder for hidden damage before cutting a replacement. If the cylinder is compromised, we’ll tell you on the spot and give a written price for a new one.
Smart Lock and Keypad Programming
If you have a keypad deadbolt or smart lock in San Mateo, we can reprogram codes, replace batteries, or swap the cylinder without replacing the entire unit. We service Kwikset, Schlage, and other major smart lock brands, and we carry the programming instructions for most common models. The job is usually done in under an hour, and the price is confirmed before the tech leaves the shop.
Trusted Brands We Service in San Mateo
Our San Mateo customers run everything from standard Schlage deadbolts and Kwikset knobs on mid-century ramblers to high-end Abloy and Medeco cylinders on newer security upgrades. We keep a rolling inventory of common residential parts for Schlage and Kwikset locks in the van, which means a typical rekey or cylinder swap doesn’t require a second trip. If your San Mateo property has premium hardware, we can usually have the correct Medeco or Abloy cylinder in hand the same day through our Bay Area supply network. You won’t have to wait a week for a part.
Common Residential Locksmith Problems We See in San Mateo Homes
- Aging mortise locks on pre-war bungalows. Along the El Camino corridor and into Hayward Park, homes built in the 1920s and 30s often still carry original mortise lock bodies. These take different cylinders than modern deadbolts, and a tech without parts either drills or leaves. We stock what’s needed.
- Fog-dampened hardware on the west side. Homes in the Marina and Shoreview areas get salt-tinged morning air rolling off the Bay. Over years, that accelerates corrosion on exterior cylinders, and we see more stuck keys and seized deadbolts in these neighborhoods than anywhere else in San Mateo.
- Split-spindle door handles from the 1970s. The tract homes built in the hills above Highway 92 and around Beresford Park often have split-spindle hardware that’s now obsolete. When a spindle breaks, retrofitting a standard handle is the practical fix, and we keep the conversion kits on the van.
- Knob-and-deadbolt mismatch on rental units. San Mateo has a lot of multi-unit rentals near the downtown transit corridor, and we regularly see doorknobs and deadbolts keyed differently. A rekey that ties both to one key costs $20 to $30 per cylinder and eliminates the two-key shuffle for tenants and landlords.
Pricing for Residential Locksmith in San Mateo, CA
For a standard residential locksmith call in San Mateo, realistic pricing breaks down like this: lockout entry runs $95 to $160, rekeying a single cylinder runs $20 to $30 per cylinder with a $65 to $95 trip charge, deadbolt installation runs $150 to $280 including hardware, and key duplication runs $5 to $12 per key. These are the numbers we quote on the phone, they’re the numbers written on the price sheet before work starts, and they’re the numbers on your invoice. We don’t add a call-out surcharge when the tech arrives, and we don’t advertise a teaser rate that swells later. Kevin Yoon, who leads our San Mateo operations, reviews every field estimate for accuracy, and if anything on site changes the scope, the new price is approved by you in writing before we proceed.
Call (409) 405-4485 for a free estimate. You’ll get the full price before anyone is dispatched, and that’s the price you pay.
We Also Serve Cities Near San Mateo
Our techs cover San Mateo and the surrounding mid-Peninsula every day. That includes Burlingame, Belmont, Millbrae, and San Carlos, all within a short drive of our San Mateo dispatch zone. If you’re in any of those cities and need residential locksmith work done with written upfront pricing, call (409) 405-4485 and we’ll get you on the board. We’re also proud to be the Residential Locksmith in San Mateo that locals call when the hardware gets stubborn.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 San Mateo
Yes, in most cases we can open a standard residential lock in San Mateo using non-destructive methods, and we’ll try that first. A typical lockout in San Mateo runs $95 to $160, and drilling is only used when the lock is broken, seized, or there’s no cylinder to pick. You’ll always be told before any drill touches the door, and the price won’t change from the written quote without your approval. Call (409) 405-4485 for a fast response.
Every Preston technician in San Mateo arrives in a uniform with photo ID clipped to the belt, drives a Relay-branded van, and arrives within the live arrival window you set in the booking app. Before they knock, you’ll see their name and photo. They’ll also carry a written quote with the job address on it, and you can refuse entry at any time if something doesn’t match. That verification is part of how we run Residential Locksmith service in this city.
Yes, we can rekey most older mortise locks in San Mateo, including the ones common in the pre-war bungalows along the El Camino corridor and in Hayward Park. Rekeying a mortise cylinder runs $20 to $30 per cylinder plus trip charge, and we usually keep the correct cylinders on the van. If the mortise body itself is worn out, we’ll give you a written replacement price before touching the hardware. Call (409) 405-4485 and we’ll tell you what your specific door needs.
We service Schlage, Kwikset, Medeco, Abloy, Yale, Baldwin, Mul-T-Lock, and Sargent hardware for San Mateo homes. For standard residential work, Schlage and Kwikset are what we see most, and we keep those cylinders and parts in the van. For high-security Medeco or Abloy cylinders, we can usually source parts the same day through our Bay Area supply chain. Tell us your lock brand when you call (409) 405-4485 and we’ll confirm before we dispatch.
A standard lockout or rekey in San Mateo takes 20 to 45 minutes once the tech arrives, and arrival is typically 30 to 45 minutes from your call depending on where you are in the city. More complex jobs, like replacing an older mortise lock or retrofitting a split-spindle handle, usually run 60 to 90 minutes. We’ll give you a time estimate when we quote the price, and the tech will honor that window.
Written by Kevin Yoon, who leads residential locksmith operations at Preston Locksmith & Security for the San Mateo area.