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 Portola Valley
Rekeying locks in Portola Valley typically runs $25 to $45 per cylinder, and the full price is confirmed in writing before a technician ever drives up Alpine Road. Most Portola Valley homes have three or four exterior doors plus a gate or detached structure, so a complete rekey usually lands between $165 and $290 including the service call. We answer the phone at (409) 405-4485 with a live person, every time. Kevin Yoon founded Preston Locksmith & Security in 2008, and our crews know that a Portola Valley job often means long private driveways, gated entries, and hardware that has not been touched since the house was built.
Rekeying means swapping the internal pins inside your existing lock cylinders so old keys stop working. No new hardware is needed. That matters here because many Portola Valley homes still have original Schlage or Kwikset deadbolts from the 1970s and 1980s. Those locks are solid. We change the pin stack, hand you new keys, and every key that existed before is retired on the spot.
Why Preston Locksmith & Security Is Portola Valley’s Preferred Rekey Locks Company
Nobody in Portola Valley wants a four-hour arrival window. The town has no commercial strip, no streetlights, and no storefront locksmith. So the company that shows up has to be accountable before the van even turns onto Portola Road. We operate under The Relay Visibility Guarantee: a written price before work begins, a live trackable arrival time you can follow on your phone, and before-and-after photos of every lock we touch.
That guarantee is not a slogan. It is the operating standard Kevin Yoon built the company around in 2008. Our technicians are background-checked and arrive in uniform with a name you already know from the booking. Portola Valley homeowners routinely tell us the same thing: the written price, the live arrival tracking, and the photo documentation are why they called us instead of a generic locksmith who quotes one number and invoices another. We are independently owned and operated, part of the Relay Home Co. family.
Every job carries the 365-Day Done Right Promise. If the rekey is not done right, we make it right. That includes a free second visit if the repair fails. We put that in writing on every invoice, every single time.
Rekey Service in Portola Valley
Rekey Service in Portola Valley usually means a house with multiple lock cylinders spread across a main residence, a detached guest house, and sometimes a pool cabana or workshop. The first sentence you need is this: standard rekeying runs $25 to $45 per cylinder in this market, and the price we quote on the phone is the price on the invoice.
We start by walking the property with you. Doors, gates, side entries, garage access doors. Every cylinder gets counted before a tool leaves the bag. That walk-through is free and it is part of the written quote. Then we pull each lock cylinder, replace the pin and tumbler stack, and cut new keys on the spot.
Full-home cylinder counts
A three-bedroom ranch off Portola Road often has four or five keyed entries. Front door, mudroom, garage door, back patio, and a detached structure. We quote the cylinder count in writing, so the price is locked before we start. No surprises, no rewrites on arrival.
Old keys retired on site
The moment we finish a cylinder, the old key is dead. That includes keys held by previous owners, housekeepers, pet sitters, contractors, or anyone who ever had a copy. In Portola Valley, where homes change hands quietly and staff often carry keys for years, this is the single most common reason people rekey immediately after closing.
Keyed Alike in Portola Valley
Keyed Alike in Portola Valley means every exterior door on your property works from one key. That is not automatic, especially in older homes. A 1970s ranch on Los Trancos Road may have a Schlage front deadbolt, a Kwikset mudroom knob, and a third brand on the garage. Those keyways do not match. We re-pin each cylinder to a single key code, and you walk the property with one key in your pocket.
The cost is the same $25 to $45 per cylinder. What changes is the labor to bring mismatched brands into alignment. If a lock body is worn beyond what new pins can fix, we tell you before we replace it. The replacement price is written down before it happens.
Mixed-brand locks on one key
We carry pin kits for Schlage, Kwikset, Yale, and Medeco on every Portola Valley job. That means we can key a Schlage front door and a Kwikset side door alike in a single visit. A crew that only stocks one brand’s pins cannot do that. You would end up with two keys, or a second trip charge.
Guest houses and detached structures
Portola Valley properties frequently include a detached guest house, a pool cabana, or a garden studio. Each has its own lock. We count those cylinders in the quote before dispatch. Keying everything alike, including the gate hardware, is standard for us here. It is not an upsell and it never changes the phone quote.
Trusted Brands We Service in Portola Valley
We service Schlage, Kwikset, Medeco, and Yale hardware every week in Portola Valley. Most 1970s and 1980s homes here carry Schlage deadbolts on the main entry and Kwikset knobs on secondary doors. That mix is normal, and our vans are stocked for it. If you own Medeco high-security cylinders, we can rekey those too, and we carry the specialized pin kits required. No ordering parts and waiting a week. The rekey happens on the first visit.
Common Rekey Locks Problems We See in Portola Valley Homes
- Mismatched keyways across doors. A Schlage front deadbolt and a Kwikset side door cannot share a key unless the cylinders are re-pinned to match. We carry both brands on every truck, so the fix happens same-day.
- Detached structure locks forgotten in the count. A guest house or pool cabana adds one to three cylinders. If those get skipped on the phone quote, the price changes when we arrive. We count every keyed opening before dispatch, including gates.
- Long private driveways and gated entries stretch job time. Access on roads like Portola Road and Los Trancos Road takes coordination. We send a live arrival link the moment the technician leaves the shop, so you know exactly when the van reaches your gate.
- Hardware worn by decades of unincorporated-weather exposure. Portola Valley’s dry summers and damp winters put real wear on exterior lock bodies. If a cylinder is too worn to rekey safely, we quote the replacement in writing before touching it.
Pricing for Rekey Locks in Portola Valley, CA
We do not advertise a teaser price and we do not add a call-out surcharge when the van arrives. The quote is written, it matches the invoice, and if we find a cylinder that needs replacement rather than rekeying, that cost is confirmed with you in writing before the work happens. Call (409) 405-4485 for an exact quote. Estimates are free.
We Also Serve Cities Near Portola Valley
Preston Locksmith & Security provides Rekey Locks service throughout the Portola Valley area, including Stanford, Menlo Park, Los Altos, and Atherton. Our Rekey Locks in Portola Valley team dispatches from outside the valley and covers the surrounding communities with the same written-price guarantee.
Serving Portola Valley, CA - Our Local Coverage Area
We’re based in the Portola Valley 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 Portola Valley
Do you charge extra to come out to Portola Valley from the shop?
No. We do not add a surcharge for the drive into Portola Valley. The quote you receive on the phone includes the service call to your property, whether you are off Portola Road, Alpine Road, or a private lane off Los Trancos Road. The written price you approve before dispatch is the invoice total. Call (409) 405-4485 for a free estimate.
How long does a rekey take on a Portola Valley home with several exterior doors?
Most Portola Valley rekey jobs take 45 to 90 minutes. A standard three-door home runs about an hour. Add a guest house, gate, or pool cabana and you are looking at closer to 90 minutes. We quote the cylinder count before dispatch so the timeline is predictable, and you can follow our live arrival tracker while we are en route.
My Portola Valley house has both Schlage and Kwikset deadbolts – can they all use one key?
Yes. We carry pin kits for Schlage, Kwikset, Yale, and Medeco on every Portola Valley job. We remove each cylinder, re-pin it to a single key code, and cut you new keys. A mixed-brand house is routine for us. You end up with one key that opens every exterior door, including detached structures.
What actually happens during a rekey – are you replacing my locks?
We are not replacing your locks. Rekeying means removing the lock cylinder, taking out the old pin and tumbler stack, and installing a new pin configuration that matches a new key. Your existing hardware stays on the door. The old keys stop working immediately. It is faster and cheaper than replacing hardware, and it preserves the original look of older Portola Valley homes.
How do I know the person at my gate is actually from Preston Locksmith & Security?
Before the technician leaves the shop, you receive a live trackable arrival link. That link shows the van’s location in real time, so you can see exactly when it turns onto your driveway. The technician arrives in uniform, introduces themselves by name, and is background-checked. You also get before-and-after photos of every lock we service. On a gated, unincorporated Portola Valley property with no storefront to verify, that documentation is what proves we are who we say we are. Call (409) 405-4485 to schedule.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Portola Valley since 2008.






