Smart locks
House lockouts
Re-keying
Deadbolt upgrades
Schlage
Kwikset
Car keys & fobsNon-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.
Get your free estimateMedeco Locksmith in Sierra Madre, CA | Greystone Locksmith
We’re an independent Medeco service provider working across Sierra Madre, and the quick answer is this: most Medeco calls here aren’t new installs. They’re re-keys and repairs inside original mortise locks on 1900s-to-1930s homes, where historic-preservation rules mean the exterior hardware can’t change without review. We handle that reality daily. If you need a Medeco cylinder serviced, re-keyed, or repaired on a period Sierra Madre door, call Gil Tanner and the team at Greystone Locksmith: (866) 497-9415. We’ll tell you straight whether your lock needs a rebuild, a re-key, or a like-for-like swap.
Why Sierra Madre Residents Choose Us for Medeco Service
Medeco hardware is a different animal from a stock Schlage or Kwikset deadbolt. Restricted keyways, angled cuts, hardened pins. You can’t walk into a big-box store and buy a Medeco key blank. You need a locksmith who’s cut thousands of Medeco keys and re-pinned hundreds of Medeco cylinders, and who understands that a Medeco sales & service call in Sierra Madre usually means working inside a 1920s mortise lock body, not drilling a fresh 2-1/8-inch bore in a brand-new door. That’s what we do. Gil Tanner has spent the better part of three decades working locks across the Inland Empire, and he builds his crew around the same standard he got from his trade instructor at Riverside City College: a locksmith is just a problem-solver who happens to carry better tools. That matters when your Medeco Maxum deadbolt won’t latch because a hundred-year-old door decided to swell in August heat.
We’re Sierra Madre service area regulars, not a dispatcher with a call center. We know the difference between a Craftsman original door and a mid-century infill panel. We carry genuine Medeco pins and cylinders for restricted-keyway work, and we stock the reinforcement hardware that actually holds up on old wood doors. And we’ll never push a full hardware swap when a re-key and a strike-plate adjustment do the job.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Sierra Madre
Five issues come up more than anything else when we service Medeco locks in Sierra Madre’s 91024 and 91025 ZIP codes:
- Keys binding in restricted keyway plugs by late summer. South- and west-facing doors in Sierra Madre bake in foothill sun for months. Dust and grit work into the Medeco cylinder, and the tight tolerances that make these locks secure also make them sensitive. We clean, re-pin, and re-lubricate before they seize entirely.
- Deadbolts that won’t latch after a hot, dry spell. Original wood doors swell in late summer. A Medeco Maxum deadbolt that threw perfectly in April often won’t seat by August because the strike plate has shifted a sixteenth of an inch. We plane door edges and realign strikes, not replace the lock.
- Keys that turn but don’t throw the bolt. On vintage mortise lock bodies retrofitted with Medeco cylinders, the cam and tailpiece wear over decades. This is a repair we do in place, without pulling the original hardware off the door. If the mortise body is worn beyond safe repair, we’ll rebuild or replace the body and keep your Medeco cylinder.
- Seasonal call-backs after winter rain or Santa Ana winds. When a slab door shifts after a storm, the Medeco bolt seats tight or not at all. We adjust hinges and strikes to keep the throw clean.
- Lost or worn restricted keys. Medeco keys can’t be copied at a hardware store. We handle restricted key duplication and re-keying for Sierra Madre homeowners who need a fresh set without changing the visible hardware.
Medeco Service in Sierra Madre: What Local Conditions Mean for Your Equipment
Here’s what generic Medeco pages miss: Sierra Madre is a small, historically protected foothill town of about 11,000 people, and much of its single-family housing dates from the 1900s through the 1930s. Those homes sit under strict design review. Exterior door and hardware changes are limited. So when a homeowner on a steep street off the foothill edge calls us about a Medeco lock, the job is almost never “install a new deadbolt.” It’s “open this original mortise lock, service or re-pin the Medeco cylinder inside it, and don’t change the visible face of the door.” That constraint barely exists in neighboring foothill towns like Monrovia, where Medeco repair doesn’t face the same design review hurdles. It’s the single biggest factor shaping Medeco work in Sierra Madre, and it means we’re doing careful in-place cylinder swaps, cam replacements, and strike realignments on doors that have swelled and settled for eighty or ninety years. A lock that worked in April often won’t latch by August, and the fix is planing and realignment, not new hardware.
Medeco Models & Products We Service in Sierra Madre
We work on the Medeco hardware installed across Sierra Madre’s housing stock:
- Medeco Maxum deadbolts – grade 1 high-security deadbolts found on newer doors and retrofitted onto mid-century homes.
- Medeco M3 (Maxum3) high-security cylinders – the angled-cut, restricted-keyway cylinder that shows up in commercial and residential high-security setups.
- Medeco KeyMark cylinders – mastered keyway systems used by a few commercial and multi-unit properties in town.
- Medeco Classic mortise cylinders – these are what we most often retrofit into original Sierra Madre mortise lock bodies on Craftsman and Spanish Colonial Revival doors.
For re-keys and cylinder work, we use genuine Medeco pins and key blanks because restricted keyways don’t tolerate aftermarket substitutions. For strike plates and reinforcement hardware, we use quality aftermarket parts where they don’t compromise key control. If we keep common Medeco pin kits and cylinder components on hand in our service vehicles, we can often finish a Sierra Madre re-key in a single visit. If a specific blank or cylinder needs to be ordered, we’ll tell you the timeline honestly on the phone.
Medeco Service Pricing in Sierra Madre
Medeco work costs more than standard Kwikset or Schlage service because the parts and the expertise are not commodity items. A Medeco service call in Sierra Madre typically runs $175 to $400, depending on whether the job is a straight re-key, a cylinder rebuild inside a mortise lock, or a full deadbolt install with door prep. Re-keying a Medeco cylinder runs $25 to $45 per cylinder in labor on top of parts. If a new Medeco Maxum deadbolt is needed, the hardware itself runs $150 to $300 depending on finish and trim. The price we quote on the phone is the price on the invoice. There’s no call-out surcharge added on arrival, and we don’t do bait-pricing where a $19 hook becomes a $500 bill. Call (866) 497-9415 and describe your lock and door. We’ll give you a straight range before anyone rolls to your street.
Serving Sierra Madre, CA — Our Local Coverage Area
We’re based in the Sierra Madre 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 Sierra Madre
Yes. We re-key the existing Medeco cylinder in place, leaving the visible escutcheon, faceplate, and door hardware untouched. This is the standard job for Sierra Madre homes under historic-preservation review, and it’s usually done same-day. Call (866) 497-9415 and we’ll confirm your door and lock type.
Foothill heat bakes south- and west-facing wood doors, and the dry Mediterranean summer makes original doors swell and warp. The strike plate shifts just enough that the Medeco bolt no longer seats cleanly. The fix is usually strike adjustment and light door planing, not a new lock. We see this pattern every August.
We carry common Medeco restricted blanks and pin kits in our vehicles for standard residential keyways. Some unusual or proprietary keyways require ordering from a Medeco distributor, which we’ll flag before scheduling. Call
Usually yes. We’ve retrofitted Medeco cylinders into original mortise bodies on Craftsman and Spanish Colonial Revival doors throughout Sierra Madre and into East Pasadena for Medeco repair on similar historic homes. It requires matching the cylinder length, cam, and tailpiece to the existing lock body, and sometimes rebuilding the mortise internals if they’ve worn beyond safe operation. We’ll assess the lock and give you a written scope before work starts.
Don’t force it. A key that won’t turn usually means the door slab has moved and the cylinder cam is binding against the tailpiece, or the strike has shifted out of alignment. Forcing the key can snap it inside the Medeco cylinder, turning a simple call into a destructive extraction. Call (866) 497-9415 and describe what happened. We’ll walk you through what to check and can be on site quickly if it needs hands-on repair.
Service Areas Near Sierra Madre
We handle Medeco service across the broader foothill corridor and Inland Empire. If you’re in Riverside, Rubidoux, Sunnyslope, Pedley, or Woodcrest, we can route a technician to you as well. For Medeco work south of Sierra Madre, see our Medeco service in South San Gabriel page. Up the High Desert side, we also cover Medeco service in Victorville.
Book Your Medeco Service in Sierra Madre Today
If your Medeco lock is sticking, won’t latch, or just needs a re-key, call Greystone Locksmith at (866) 497-9415. Same-day service is available for most Sierra Madre calls, and we’ll quote the full price before dispatch. A lock is only as good as the installation behind it, and we’ve been doing this long enough to know that’s especially true on century-old doors.
Written by Gil Tanner, Owner at Greystone Locksmith, serving Sierra Madre and the Inland Empire with independent Medeco service, re-keying, and high-security lock repair.
Request a Free Estimate in Sierra Madre
Tell us what you need — Greystone Locksmith responds fast. No obligation.