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Car keys & fobsNon-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
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Get your free estimateMedeco Locksmith in Chino, CA | Greystone Locksmith
We provide independent Medeco locksmith service across Chino, from the Preserve at Chino’s 91708 tract homes to the older 91710 core near downtown, plus Medeco in Montclair. What makes our Medeco work different here is that we actually understand how Chino’s heat, Santa Ana winds, and split housing stock affect high-security cylinders and deadbolts. If your Medeco lock is binding, sticky, or you need a restricted key cut properly, call (866) 497-9415 and we’ll walk you through it before anyone drives out.
Why Chino Residents Choose Us for Medeco Service
Medeco isn’t a lock you want someone learning on. The sidebar geometry, pin stacks, and restricted key-control systems behave differently than a standard Kwikset or Schlage, and a technician who treats it like a basic cylinder will either damage the lock or hand you a key that doesn’t work. Our crew works with Medeco’s Maxum deadbolts, M3 and M3+ keyways, and the older Biaxial and Original cylinders that are still turning on Chino doors every day. We’re an independent shop, not manufacturer-authorized or warranty-endorsed by Medeco, which means we diagnose and repair to spec instead of pushing a replacement sale. Gil Tanner, our owner, has spent nearly three decades working locks across the Inland Empire, and he’ll be the first to tell you that a lock is only as good as the installation behind it. We work on the lock in front of us, not just the brands we prefer.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Chino
- Binding deadbolts on older 91710 doors. Chino’s intense summer heat and Santa Ana wind cycles warp door jambs in the ranch and mid-century homes near downtown. The Medeco deadbolt itself is fine; the strike alignment isn’t. We adjust the frame and strike so the hardened bolt throws clean instead of fighting the jamb.
- Sticky keys on worn Biaxial and Original cylinders. Long-installed Medeco cylinders in Chino’s dry, smoggy climate dry out internally. Sidebar and pin wear makes keys require a jiggle or fail intermittently. We rebuild and re-pin serviceable cylinders rather than telling you to replace a lock that still has years in it.
- Restricted-key control gaps. Missing key cards, lost control keys, or a homeowner who inherited a Medeco cylinder and can’t get duplicates cut because the authorization path is unclear. We sort out the key-control paperwork and cut restricted keys on genuine Medeco blanks so control integrity stays intact.
- Finish corrosion and grit in Preserve-area exteriors. Smog and dust seasons in Chino leave fine grit in exterior cylinders around 91708. The result is rough turning and intermittent key-in failure. We clean, lubricate, and re-pin what’s salvageable, and replace only what’s actually compromised.
- Builder-keyed entries on Preserve tract homes. This one is uniquely Chino. Phased construction meant identical builder keyways across entire blocks, so a neighbor’s builder key still opens your entry. We swap the bargain cylinder for a Medeco Maxum with a restricted keyway so that problem disappears permanently.
Medeco Service in Chino: What Local Conditions Mean for Your Equipment
The Preserve at Chino was built out in phases with identical builder keyways, so new 91708 owners routinely call us because a neighbor’s builder key still turns their entry, even after they thought they’d secured the home. A new owner on a Preserve tract home called after discovering her neighbor’s builder key still opened her entry set. We pulled the bargain builder cylinder and installed a Medeco Maxum deadbolt with a restricted keyway and a fresh strike. On an older ranch parcel off the 91710 core near downtown, a Medeco Biaxial cylinder was sticky only in the summer heat, so we traced it to a warped jamb binding the bolt, adjusted the strike, and re-pinned the cylinder rather than selling a new lock. Pair that with the California Institution for Men’s employee churn driving turnover rekeys nearby, and no neighboring city has this same split. For more on our Medeco work across the region, see our Medeco sales & service page.
Medeco Models & Products We Service in Chino
We service the Medeco Maxum deadbolt, the residential high-security workhorse; M3 and M3+ keyway cylinders, including retrofits into existing hardware; Biaxial and Original cylinders still on older Chino doors; and Medeco eCylinder electronic and keypad locks. For restricted-keyway work, we use genuine Medeco cylinders, sidebar springs, and key blanks so key control never gets diluted with aftermarket parts. Quality aftermarket hardware is reserved for non-security components only: strikes, weather seals, and trim pieces where brand doesn’t affect the security envelope. If a Medeco cylinder is worn but serviceable, we rebuild and re-pin it. We only recommend replacement when the sidebar or body is genuinely compromised.
Medeco Service Pricing in Chino
Medeco service in Chino runs different numbers depending on what your lock actually needs. A cylinder rebuild with re-pinning on an existing Medeco typically lands between $85 and $160. A new Medeco Maxum deadbolt installation runs $220 to $410, including the lock and labor. If we’re adding a Medeco cylinder to an existing smart lock or keypad entry, that’s $120 to $200, though retrofitting older hardware can push toward $250. Re-keying a Medeco to new restricted keys runs $65 to $120 per cylinder, plus key blanks and any key-control card work. Emergency or after-hours service adds a trip fee that gets quoted honestly on the phone before we dispatch. The price we quote is the price on your invoice. No call-out surcharge on arrival. Call (866) 497-9415 and we’ll give you a real number, not a teaser rate that changes when the truck shows up.
Serving Chino, CA — Our Local Coverage Area
We’re based in the Chino 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 – Medeco Locksmith in Chino
No. We’re an independent Medeco service provider, not authorized, sponsored, or warranty-endorsed by Medeco. That independence means we diagnose and repair to spec rather than steering you toward a replacement sale. We use genuine Medeco cylinders and key blanks for restricted-keyway work so key control stays intact.
Yes, in most cases. We retrofit Medeco M3 or M3+ cylinders into compatible smart locks and keypad entries, which upgrades the keyway security while keeping the electronic convenience. Some smart locks have proprietary tailpieces that limit cylinder options, so call us with the model number and we’ll tell you straight whether it’s a clean install.
A cylinder rebuild or re-pin usually takes 30 to 60 minutes on site. A full Medeco Maxum deadbolt installation with strike adjustment runs 60 to 90 minutes, longer if your door jamb needs realignment from Chino’s heat-related warping. We’ll give you a time estimate when you call, and it holds unless we find something unexpected behind the hardware.
For restricted-keyway work, always. We use genuine Medeco cylinders, sidebar springs, and key blanks because aftermarket parts in a restricted system break key control and can void the security model. Non-security components like strikes and weather seals get quality aftermarket parts where brand doesn’t matter. Call (866) 497-9415 if you want a breakdown before we start.
Most Chino jobs, like Medeco repair in Los Serranos, land between $85 and $410 depending on the work. A restoration and re-pin on an existing cylinder is the low end; a new Maxum deadbolt installed with a restricted keyway is the high end. We quote the full price on the phone before anyone is dispatched, and that’s the number on your invoice. No add-ons when the tech arrives. Call (866) 497-9415 for an exact figure; estimates are free and take about five minutes.
Service Areas Near Chino
Greystone Locksmith handles Medeco work across the Inland Empire corridor. We’re regularly out in Riverside, Rubidoux, and Sunnyslope for high-security cylinder rebuilds, and we cover Pedley, Woodcrest, and Highgrove for deadbolt installations and restricted-key work. If you’re just outside Chino, we likely already have a tech in your area this week. For the full picture of where we work, see our Chino service area page, or if you’re north of here, our Medeco service in Upland page covers that corridor and our Medeco service in Nuevo page covers the eastern side.
Book Your Medeco Service in Chino Today
Locked out or locking down, Greystone handles both Medeco in Eastvale and throughout the region. If your Medeco is binding, sticky, or you just bought a Preserve home and don’t trust the builder keys, call (866) 497-9415. We’ll diagnose over the phone, quote a real price, and get a tech to your Chino door same-day when the job needs it.
Written by Gil Tanner, Owner at Greystone Locksmith, serving Chino and the Inland Empire.