Medeco Lock Rekeying Nationwide | Novak Lock & Security Katy

Medeco Lock Rekeying: The Katy Owner’s Guide

Medeco lock rekeying in Katy typically runs $45-$85 per cylinder for residential deadbolts and knob sets, with high-security rim cylinders and commercial applications landing at $75-$140. We stock Medeco key-in-knob, deadbolt, and rim cylinder pinning kits on every truck, and most residential rekeys in Katy are completed same day. Homeowners usually discover the need when a key starts catching at 45 degrees, a tenant or employee turns over, or they realize their Medeco system still operates on a key profile from a previous owner they never met.

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Which Medeco Models This Applies To

Medeco builds several cylinder families, and the rekeying approach differs by series. The original Medeco Biaxial system, still common in Katy homes built between 1995 and 2010, uses angled pin tumblers with sidebar engagement. Medeco3, the current residential standard, adds a sliding element to the sidebar for pick resistance. Medeco X4 operates on a conventional pin-tumbler platform with Medeco’s proprietary keyway, which rekeys faster but offers less brute-force resistance. The high-security M3 and restricted Medeco Logic cylinders require factory-authorized key blanks and cannot be rekeyed with standard pinning kits.

Identification starts at the face of the cylinder. Biaxial housings are stamped with a small “B” near the keyway; Medeco3 carries a “M3″ mark. X4 cylinders lack either marking and use a more conventional key profile. For rim cylinders on metal doors, we measure the tailpiece length and cam orientation before quoting, because a 1-3/8″ tailpiece ordered for a 1-3/4” door will bind and fail prematurely. We source OEM Medeco pinning kits and key blanks; aftermarket equivalents exist for X4 but we do not use them, because non-factory blanks have produced fit complaints in our Katy service records.

We are an independent service provider, not affiliated with Medeco. Our factory authorization means we can order restricted blanks and program Medeco Logic systems; it does not mean we work for the manufacturer.

Signs Your Medeco Lock Rekeying Is Failing

• Key catches at mid-rotation and requires wiggling. This points to worn bottom pins or a sidebar channel clogged with metal dust from years of key insertion. In Katy’s clay-heavy soil environment, fine grit tracked indoors accelerates this wear pattern beyond what Medeco’s specs assume for temperate climates.
• Key turns fully but the bolt does not retract. The tailpiece or cam has sheared, or the cylinder housing has rotated slightly in its mounting. On Medeco deadbolts, this often traces to a loose set screw that allowed the cylinder to shift under torque.
• New keys work; old keys still operate. The rekey was performed but the sidebar code was not changed, or a master key system was present and not disclosed. We check for master wafers before any rekey and document what we find.
• Keyway feels gritty or binds in summer months. Humidity swelling in wooden door frames shifts cylinder alignment against the strike plate. We see this in Katy’s older Cinco Ranch homes with solid-core entry doors, where seasonal movement exceeds the cylinder’s tolerance.
• Key extraction requires force or the bow separates from the blade. The plug is binding due to worn top pins or a damaged sidebar spring. Forcing extraction can snap a key inside the keyway, which turns a $65 rekey into a $140 extraction-plus-rekey.

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After

Replacement Cost & What’s Included

The range reflects cylinder condition and keyway complexity, not guesswork. A Biaxial cylinder with original pins from 2003 takes longer to service than a 2019 Medeco3 with clean internals. We quote the exact price before dispatching, and Haven Standard Clause 1 applies: the price on the phone is the price on the invoice. No call-out surcharge, no “trip charge” added at the door. Every rekey carries our 365-Day Done Right Promise and includes a documented photo record of the cylinder condition before and after.

DIY or Call Us?

A homeowner can verify the cylinder series marking and count how many keys are unaccounted for. Beyond that, Medeco rekeying requires specialized pinning kits, key gauges, and sidebar alignment tools that do not cross over from Schlage or Kwikset equipment. The sidebar springs in Biaxial and M3 cylinders are under tension; improper handling launches small parts into door cavities or across rooms. We have retrieved sidebar springs from HVAC registers and carpet edges in Katy homes where a well-intentioned attempt went wrong.

If you have a Medeco keyway and need to know who else has keys, or you need the system to recognize a new key profile, call us. We carry the factory pinning kits, the key blanks, and the spec sheet. Name the part, name the price, describe what was found. That’s how we work.

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