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 Montclair, CA | True Blue Locksmith
We provide independent Medeco locksmith service across Montclair, from lockout response to full master-key system rekeys. The one thing that makes our Medeco work different here: Montclair’s rental-heavy housing stock means most of what we do is restricted-keyway rekeys for property managers, not one-off residential installs. If you have a Medeco cylinder that needs rebuilding, rekeying, or honest evaluation, call Noel and our team at (877) 358-5506. We have been working Medeco hardware long enough to know when a cylinder is worth saving and when it’s time to replace it.
Why Montclair Residents Choose Us for Medeco Service
Medeco isn’t a brand most locksmiths see every week. The Medeco sales & service work we do leans into the restricted keyway side: M3 cylinders, Maxum deadbolts, commercial mortise and rim cylinders, master-key systems. Noel Carrasco picked up the trade at Cerritos College after his early twenties and has spent the better part of two decades running locks in southeast LA County, including a lot of Medeco hardware in apartment buildings and commercial storefronts. We are an independent Medeco service provider, not manufacturer-affiliated or authorized, which means we can be straight about repair versus replacement without a brand agenda. In Montclair, that matters because property managers need a tech who shows up knowing the keyway, cuts keys from legitimate distribution blanks, and gets the building back on one system before the next tenant walks in.
Our work stays city-neutral in branding, but the service call is always local to where you are. When a Medeco lock fails in Montclair, we are the ones driving to your building, not a call-center dispatcher routing a subcontractor like you’d get with some Medeco in Claremont services. You get the same person who quoted the job, doing the job.
Styles & brands we work with







Common Medeco Locksmith Problems We Solve in Montclair
Most Medeco service calls in Montclair fall into a handful of patterns. Here is what we see regularly:
- Restricted M3 keys that disappeared during tenant turnover. This is the most common Medeco call in Montclair. A tenant moves out, the keys never come back, and now the landlord or property manager has a cylinder nobody can key to. We replace or rekey the cylinder with fresh restricted blanks and cut new sets for the office and the incoming tenant.
- Maxum deadbolts binding in late summer. The dry Inland Empire heat bakes wooden doors and frames until they swell or warp. The hardened bolt on a Medeco Maxum drags against a misaligned strike plate. The lock itself is usually fine; the door has moved. We re-align or replace the strike so the bolt seats without grinding.
- Gritty, sticking rotation pins on older Medeco cylinders. Mid-century Montclair homes and apartment buildings from the 1950s-1970s often still carry original Medeco cylinders. Dust and dry air work into the keyway over decades, and the rotation pins start to feel rough. Keys stick or refuse to turn. Cleaning and re-lubricating usually fixes this; replacement is rarely necessary.
- Tailpiece or lock body cracks from loose strike plates. When a builder-grade door has a loose strike, the deadbolt takes the force of the door instead of the frame. Over time that cracks or shears the tailpiece and lock body. If the body is cracked, we replace it. If the cylinder is salvageable, we rebuild it and secure the strike properly.
- Master-key system confusion after multiple rekeys. Apartment complexes south of the 10 Freeway in Montclair run master-keyed Medeco systems. After years of piecemeal rekeys by different vendors, the keyway matching gets sloppy and nobody knows what key opens what. We sort the system, rekey to a clean restricted keyway, and hand over a simple key chart for the office.
Medeco Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair sits at the base of the San Gabriel Mountains, right on the Inland Empire side of the LA metro, and the 10 Freeway cuts the city in half. Rental units and dense multi-family complexes cluster along and south of that freeway corridor. Apartments turn over constantly, which means locksmith work here skews heavily toward landlord rekeys, move-in and move-out lock changes, and property-management accounts. That is the single biggest difference between Medeco service in Montclair and the Medeco service in Upland or other foothill cities to the north. Near the Montclair Place retail corridor, a property manager can call us in the morning and have a rekeyed Medeco cylinder with fresh restricted keys by the afternoon. We keep Medeco key blanks, rotation pins, and common cylinder parts in the van because we know this city runs on turnover, not one-off upgrades.
Add the climate factor and Montclair becomes its own animal. The hot, dry summers and Santa Ana wind events dry out wooden doors and frames until deadbolts bind and strike plates misalign. A coastal locksmith does not see this pattern the way we do. By late summer, we are adjusting strike plates and re-seating bolts in buildings along Holt Boulevard and the streets south of the freeway because doors have stopped latching. The Medeco cylinder is almost never the problem; the door frame has moved out from under it.
Medeco Models & Products We Service in Montclair
We service the Medeco Maxum deadbolt line, the M3 and M3+ restricted keyway cylinders, commercial mortise and rim cylinders, and the Maxum Home residential entry locksets. For restricted-keyway work, we use genuine Medeco cylinders, key blanks, and rotation pins. For non-restricted hardware, we use quality OEM-equivalent parts only where they don’t compromise key control. In Montclair, the difference matters because a property manager’s entire building runs on key control. If a cylinder can be duplicated at a hardware store, the system is broken. We rebuild existing Medeco cylinders whenever the lock body is intact and the keyway is still serviceable. A cracked body or a keyway with no available restricted blanks gets replaced outright. We carry enough Medeco stock in the van to handle same-day rekeys on most M3 and Maxum jobs in the 91763 ZIP.
Medeco Service Pricing in Montclair
Here is what drives the cost of Medeco work here. A standard rekey on an M3 cylinder with restricted keys runs $45 to $95 per cylinder. A fresh M3 cylinder with new restricted blanks runs $120 to $200 installed. Master-key system rekeys across multiple units in a Montclair apartment building run $35 to $85 per cylinder, depending on unit count and keyway complexity. Full lock replacement with a Medeco Maxum deadbolt runs $180 to $340 per door. These are real ranges, not teaser numbers. When you call (877) 358-5506, we give you the full price on the phone before anyone is dispatched. That is the price on the invoice. No call-out surcharge added on arrival.
| Service | Price Range | Notes |
|---|---|---|
| M3 cylinder rekey (with restricted keys) | $45 – $95 per cylinder | Includes new restricted key set |
| New M3 cylinder installed | $120 – $200 per cylinder | Replaces lost or damaged cylinder |
| Maxum deadbolt full replacement | $180 – $340 per door | Body, bolt, strike, installation |
| Master-key system rekey (multi-unit) | $35 – $85 per cylinder | Volume pricing based on unit count |
Key takeaways: Rebuilding is cheaper than replacing in most cases. Restricted keyways cost more than standard because the blanks come from controlled distribution. The quote we give on the phone is the final number. Questions on a Montclair Medeco job? Call (877) 358-5506 and get an exact figure before we roll.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair 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 Montclair
Can you cut or duplicate a Medeco M3 restricted key in Montclair? Yes, we can cut Medeco M3 restricted keys in Montclair, provided you have the card or authorization that matches the keyway. We source our restricted blanks through legitimate distribution channels, not the manufacturer directly. That means we can cut the keys your system needs without you having to go through a dealer. If you do not have the card, we can still rekey the cylinder to a fresh restricted keyway and issue new keys. Call (877) 358-5506 to confirm your keyway and get a quote before you drive anywhere.
Why does my Medeco deadbolt stick or bind every late summer in Montclair? The deadbolt sticks because the wooden door or frame has dried out and warped in the Inland Empire heat. Montclair’s summers and Santa Ana wind cycles pull moisture out of the wood, which moves the strike plate out of alignment. The Medeco bolt then drags against the strike instead of sliding clean. The fix is usually a strike plate adjustment or re-mount, not a new lock. If you hear the bolt grind every August, call (877) 358-5506 and we will seat it so it latches without force.
A tenant moved out and kept the Medeco keys – what are my options as a landlord? You have two options. We can rekey the existing cylinder to a fresh restricted keyway from our Medeco blanks, which is usually the fastest path and costs less than replacement. Or if the cylinder is old and worn, we replace it with a new M3 cylinder. Either way, the old keys are dead and the new set goes only to you and the next tenant. We do this constantly for property managers in Montclair’s apartment corridor south of the 10. Call (877) 358-5506 and tell us how many units you need turned over.
Is Medeco overkill for a rental unit in Montclair? Not if you have repeated tenant turnover and a key-control problem. Medeco’s restricted keyway means a tenant cannot walk into a hardware store and get a copy made. That alone saves a landlord money across multiple move-outs. For most Montclair rental units, an M3 cylinder or a Medeco Maxum deadbolt is a practical choice, not an indulgence. The cost difference versus a standard lock pays for itself the first time a tenant fails to return keys. Call (877) 358-5506 for a per-door quote and we will tell you honestly whether Medeco is worth it for your building.
Do you work on Medeco commercial mortise cylinders and master-key systems? Yes, we service Medeco commercial mortise and rim cylinders, and we rekey full master-key systems. That includes apartment buildings, retail storefronts, and office spaces across Montclair. We pull the cylinders, rekey to restricted keyways, and cut new master, sub-master, and change keys as the system requires. If your building’s key chart is a mess, we sort it. Call (877) 358-5506 and ask for Noel; we will schedule a walkthrough and give you a line-by-line scope before any work starts.
Service Areas Near Montclair
True Blue Locksmith runs Medeco service across the Inland Empire. We cover Montclair and the 91763 ZIP, plus Chino, Ontario, Pomona, Upland, and Claremont. If you’re in one of those areas with a Medeco lock that needs attention, we’ll come to you. We also offer Medeco service in Covina for clients west of the 57, and Medeco service in South El Monte for those closer to the 605. If you are in Montclair proper, this is our home territory; Montclair service area coverage is where we spend most of our days.
Book Your Medeco Service in Montclair Today
If you need a Medeco rekey, repair, or replacement in Montclair, call us at (877) 358-5506. Most rekey jobs here we can handle same-day, especially along the apartment corridors we service weekly. The estimate is free, the price is the price, and we will tell you straight whether your cylinder is worth saving. Honest work, solid locks – that’s the whole job.
Written by Noel Carrasco, Owner at True Blue Locksmith, serving Montclair, Medeco service in Ontario, and the Inland Empire since [year].