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 Emerald Lake Hills
Rekeying a lock in Emerald Lake Hills typically costs $25 to $45 per cylinder for standard Schlage or Kwikset hardware, and most homes with two or three entry doors are done in under an hour. You get a firm price before our tech leaves the shop, not an estimate that shifts once someone is standing at your door. If you’ve lost a key, bought a home, or just want old keys to stop working, call us at (409) 405-4485 and we’ll walk through what it costs. We serve the winding streets off Edgewood Road, through the hills above Redwood City, and we know the lock hardware in these houses better than anyone.
Why Preston Locksmith & Security Is Emerald Lake Hills’s Preferred Rekey Locks Company
Emerald Lake Hills is mostly single-family homes built between the 1950s and 1970s, and a lot of them still carry original brass mortise locksets and deadbolts that a big-box store keying kit won’t fit. We’re familiar with that. Our techs arrive with pin kits cut for Schlage, Kwikset, Medeco, Yale, and Baldwin keyways, which covers nearly everything behind doors in this area. Kevin Yoon, who runs our operation, insists every technician arrives in uniform, background-checked, and holding a written price confirmed before any work starts.
We’re not the cheapest rekey service in Emerald Lake Hills, and we don’t try to be. We’re the one that answers the phone with a live person 24/7, gives you a trackable arrival time, and sends before-and-after photos of every job. That’s The Relay Visibility Guarantee. It’s a set of promises we put in writing because the locksmith trade has a reputation problem, and the only way to fix it is to be specific about what you’re getting and what it costs.
Rekey Service in Emerald Lake Hills
Rekey Service in Emerald Lake Hills means pulling the existing lock cylinder, swapping the internal pins so the old keys no longer turn, and cutting new keys to match. You keep the hardware. No new deadbolt, no new handleset. This is the right call when you move into a house and don’t know who still has a key, when you’ve had a falling-out with a roommate or contractor, or when a key went missing and you’d rather not guess where it ended up. Standard rekeying for a home in Emerald Lake Hills runs $25 – $45 per cylinder, and most houses have two or three cylinders that matter: front door, side or garage door, maybe a back door. We quote the full price on the phone before anyone is dispatched, and that’s the price on the invoice. No arrival surcharge, no “this cylinder is too old” upsell.
Original Mortise Locks
Homes in Emerald Lake Hills built in the 1950s and 60s often still have original mortise locks on the front door. These are not the round deadbolts you see at the hardware store. The cylinder slides out of a rectangular lock body, and the pins are a different length than modern cylinders. We stock pins and springs for Sargent and Schlage mortise cylinders so we can re-pin them in place rather than telling you to replace a perfectly good lockset. If the cylinder is corroded or full of graphite and won’t clean up, we’ll say so on the phone and tell you what a replacement costs before we leave the shop.
New Homeowners
You closed on a house in Emerald Lake Hills. The previous owner’s kids, dog walker, ex-spouse, and gardener may all have keys. A rekey after closing shuts all of that down in one visit. We rekey every exterior door, plus the door from the garage into the house, and hand you a single new key that works them all. You get a written invoice with the address, the work performed, and the guarantee. That’s the 365-Day Done Right Promise: if a rekeyed lock stops working within a year, we come back and fix it. Free second visit. No argument.
Keyed Alike in Emerald Lake Hills
Keyed Alike in Emerald Lake Hills means setting every lock in your home to the same key so you have one key for the front door, side door, garage, and any other exterior door. A lot of older homes here have accumulated hardware over the years: a Schlage deadbolt on the front, a Kwikset knob on the side, maybe a Baldwin deadbolt on the garage. Different brands use different keyways, so not every lock can be keyed alike to every other lock. Schlage and Kwikset, for instance, don’t share a key profile. What we do is look at what’s on your doors and tell you exactly which locks can share one key and which would need a hardware swap to make it work. The labor for keying alike is the same $25 – $45 per cylinder, plus keys.
Matching Existing Hardware
If all your locks are Schlage, or all Kwikset, keying them alike is straightforward. We pull each cylinder, re-pin it to one new key, and test every door before we leave. If you have mixed hardware, we can sometimes re-pin everything to one key if the brands share a compatible keyway, but more often the cleanest fix is replacing one or two locks so the whole house runs on one key. We’ll quote that on the phone, not surprise you at the door.
Landlords and Rental Units
Emerald Lake Hills has a mix of owner-occupied homes and some rental properties, particularly in-law units and secondary structures. If you’re a landlord turning over a rental, we can key all exterior doors alike for the new tenant and rekey again between tenancies. It’s a fast job, usually under an hour on site, and we give you a written record of every key we cut so you know exactly how many exist.
Trusted Brands We Service in Emerald Lake Hills
We service and re-pin the hardware that’s actually on doors in Emerald Lake Hills, which means a lot of Schlage and Kwikset deadbolts, a fair number of vintage Sargent mortise locks on front entries, some Medeco high-security cylinders on newer or commercial-style doors, and Yale hardware scattered throughout. The distinction matters because a tech who only carries Kwikset pins is useless on a Sargent mortise cylinder. We carry pin kits and springs for all of these keyways, along with cut-to-code keys for Medeco where the blanks aren’t sitting at the local hardware store. For most Emerald Lake Hills homes, we have the parts on the truck and the job is done in one trip.
Common Rekey Locks Problems We See in Emerald Lake Hills Homes
- Original mortise cylinders that hardware-store kits can’t touch. Front doors on many 1950s – 70s Emerald Lake Hills homes still run a Sargent or Schlage mortise lock, and the big-box rekey kits sold at hardware stores are built for modern tubular deadbolts, not these cylinders. We see homeowners buy a $15 kit, open it, and realize the pins don’t fit. Our techs pull the cylinder, match the keyway, and re-pin it properly in about 20 minutes per door.
- Cylinder corrosion and graphite buildup from decades of use. The damp winter air in the hills west of 280 accelerates corrosion inside brass cylinders, and a lot of older Emerald Lake Hills locks have been doused with powdered graphite over the years. That gunk binds the pins and makes a cylinder feel gritty or stick. A fast rekey can turn into a cylinder replacement if the condition is bad, so we ask about the lock’s age and feel on the phone before quoting.
- Mixed hardware across door types. A house with a Schlage deadbolt on the front, a Kwikset knob on the garage, and a Sargent mortise on the side door can’t all be keyed to one key without swapping something. We see this constantly in Emerald Lake Hills because hardware got replaced piecemeal over decades. We’ll tell you upfront what can share a key and what needs to change, with prices.
- Old key copies floating around the neighborhood. Emerald Lake Hills is unincorporated, which means fewer door-to-door solicitors than in Redwood City proper, but houses here still change hands and keys still get handed to painters, gardeners, and house cleaners. When we rekey a home on Manzanita Drive or Lakeview Way, we issue a controlled set of new keys and give you a written count, so you know exactly who has access.
Pricing for Rekey Locks in Emerald Lake Hills, CA
Here are the actual numbers for Emerald Lake Hills. Standard rekeying on a Schlage or Kwikset deadbolt or knob runs $25 – $45 per cylinder. Mortise cylinders, like the Sargent units on older front doors, run $35 – $65 per cylinder because the pins and springs are different and the work is more finicky. High-security rekeys on Medeco cylinders run $45 – $75 per cylinder, including new cut-to-code keys. Service call to Emerald Lake Hills is a flat $35, and that’s quoted before dispatch. There is no extra charge for arriving. None. What affects cost: how many cylinders you have, whether any cylinder needs replacement, and whether you want all doors keyed alike. Every price is confirmed on the phone before we send anyone out, and it’s the same price on the invoice. If you want an exact number, call (409) 405-4485 and describe your doors. The estimate is free.
We Also Serve Cities Near Emerald Lake Hills
Our Rekey Locks team runs calls throughout the Peninsula and the broader Bay Area. Beyond Emerald Lake Hills, we serve homeowners in Los Angeles, San Diego, San Jose, and San Francisco. If your property sits on the edge of Emerald Lake Hills or you manage rentals across nearby cities, call (409) 405-4485 and we’ll tell you which day we can be there.
Serving Emerald Lake Hills, CA - Our Local Coverage Area
We’re based in the Emerald Lake Hills 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 Emerald Lake Hills
Yes. We give you a written price on the phone before anyone is dispatched. You tell us how many doors need rekeying, what brand the hardware is, and when it was installed, and we quote a dollar figure. That figure is the price on the invoice. There’s no service-call upsell and no surprise charge when the tech arrives. Call (409) 405-4485 with a quick description of your locks and we’ll confirm the exact price.
In most cases we can re-pin it. We stock pins and springs for Sargent and Schlage mortise cylinders, which are the common original hardware on 1950s – 70s homes in Emerald Lake Hills. The cylinder slides out of the lock body, we re-pin it to your new key, and slide it back in. If the cylinder is corroded or worn beyond service, we’ll tell you before we start and quote a replacement on the spot. You never get forced into a swap after the fact.
Every tech arrives in a marked uniform, carries company ID, and shows up in a vehicle with Preston Locksmith & Security branding. Before we send anyone, you get a trackable arrival time through The Relay Visibility Guarantee, so you can watch the tech’s progress just like you’d track a delivery. And the price you agreed to on the phone is the price on the paperwork. If someone at your door in Emerald Lake Hills won’t show ID or wants to re-quote before looking at the lock, that’s not us.
A typical home in Emerald Lake Hills with two or three exterior doors takes 45 minutes to an hour on site. A single deadbolt rekey is about 20 minutes from arrival to a working new key. Mortise cylinders and high-security locks like Medeco add a bit more time. We’ll tell you the expected duration when we confirm the price, and our arrival time is live-tracked so you aren’t sitting in a four-hour window wondering when someone shows up.
It can, if the hardware allows it. If every door in your Emerald Lake Hills home uses the same brand, like all Schlage or all Kwikset, we can rekey all cylinders alike in the same visit and hand you one key that runs the whole house. If you have mixed hardware, like a Schlage deadbolt on the front and a Kwikset latch on the garage, those keyways don’t match. We’ll tell you which doors can share a key and what a hardware swap would cost to unify the rest. Call (409) 405-4485 and describe your doors; we’ll give you a straight answer.
Written by Kevin Yoon, Owner at Preston Locksmith & Security, serving Emerald Lake Hills since 2008.






