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.
Sargent Car Key Cutting: The Katy Owner’s Guide
Sargent car key cutting in Katy typically runs $45-$85 per key for standard Sargent automotive blanks, including cutting and verification against the lock cylinder, with same-day service when you call before 3 PM. We stock Sargent-compatible key blanks for the most common automotive profiles used in fleet and commercial vehicles across the Katy area, and our mobile units carry the cutting equipment to match your existing key or originate from code when the original is lost. Most Katy customers discover their Sargent key is failing when the cuts no longer align cleanly with the wafers, or when a copied key, cut on a worn duplicator at a hardware kiosk, starts hanging up in the ignition or door.
Which Sargent Models This Applies To
Sargent automotive key systems fall into several series that share common blank profiles but differ in shoulder stop position and root depth. The Sargent 6275 and 6276 series are the blanks we cut most often for commercial fleet vehicles in Katy, particularly Ford and GM platforms from the 1990s through mid-2000s that shipped with Sargent-supplied lock hardware. The Sargent 6300 series covers the narrower single-sided blanks used in older import applications. To identify your correct blank, we check the bow stamp, the shoulder code, and the keyway cross-section against the Sargent commercial catalog.
We do not stock Sargent OEM blanks exclusively. For most Katy customers, we cut Ilco or JMA equivalents that meet the same SAE and ASTM specifications at a lower per-key cost. The exception is restricted keyways, where Sargent factory authorization is required to purchase the blank. If your key is stamped “Do Not Duplicate” and the bow carries a restricted profile number, we will tell you before cutting whether we can source the blank or whether the order must route through Sargent directly. Novak Lock & Security Katy is an independent service provider, not affiliated with Sargent.
Signs Your Sargent Car Key Cutting Is Failing

- The key requires jiggling to turn. This usually means the cuts have worn or the duplicator that made your last copy was out of calibration, producing angles that no longer match the wafers squarely. We see this most often on keys copied at self-service kiosks in Katy grocery stores.
- The key works in the door but not the ignition, or vice versa. Sargent fleet systems often use different wafers or wear patterns between door and ignition cylinders. A key cut to worn specifications may clear one cylinder and fail in the other.
- You feel grinding or catch points as the key enters. This indicates either a miscut, a bent blade, or debris packed into the keyway. Forcing the key can damage the wafers and turn a $60 key replacement into a $200 cylinder rebuild.
- The key extraction is stiff or requires pliers. When the shoulder stop is cut too shallow or the blade width is slightly off-spec, the key binds against the cylinder face. In Katy humidity, this accelerates corrosion in the keyway.
- A copied key fails within weeks. Second- and third-generation copies accumulate error. We trace this back to the original factory code when possible, rather than duplicating a duplicate.
Before
AfterReplacement Cost & What’s Included
| Service | Price Range in Katy |
|---|---|
| Standard Sargent key cut to working copy | $45-$65 |
| Key originated from factory code (lost key) | $65-$85 |
| Restricted/Sargent-authorized blank surcharge | $25-$40 additional |
| Mobile service to your location | Included in key price |
The range reflects blank grade and whether we are copying an existing key or decoding from lock or VIN. Every Sargent key we cut is verified on a test cylinder before we leave. Haven Standard Clause 1 applies: the price you are quoted on the phone is the price on the invoice, with no call-out surcharge added on arrival. The 365-Day Done Right Promise covers the cut and the blank against defect.
DIY or Call Us?

An owner can safely check whether the key bow is cracked or the blade is visibly bent. These are visual inspections, not repairs. What you cannot safely do is recalibrate a key duplicator or measure root depths with the precision a Sargent blank requires. A miscut key, forced into a cylinder, will damage wafers or the sidebar in a high-security application. We have replaced ignitions in Katy fleet trucks because a $15 hardware-store copy was forced past its tolerance. If your key is failing, call us at (832) 402-8386. We will quote the exact price before dispatch, cut the key on-site, and verify operation before we leave.
FAQs
A properly cut Sargent key from an original factory specification lasts the life of the lock cylinder, typically 10-15 years in normal use. In Katy, where summer cabin temperatures exceed 140°F and dust from nearby construction sites works into keyways, we see accelerated wear on both keys and cylinders after about 7 years. Call (832) 402-8386 for an exact quote - estimates are free.
No. A brass key blank, once the cuts have worn or deformed, cannot be restored to specification. We can sometimes decode the remaining geometry and cut a fresh key that restores smooth operation without replacing the cylinder. Call (832) 402-8386 for an exact quote - estimates are free.
Most Sargent key cuts take 15-25 minutes from arrival to verified operation, including setup and cleanup. Code origination for a lost key adds 10-15 minutes for lookup and verification. Same-day service is available in Katy when you call before 3 PM.
We carry Ilco and JMA equivalents for the Sargent 6275, 6276, and 6300 series on every mobile unit. Restricted Sargent blanks are ordered same-day from our Houston distributor when authorization is confirmed. We do not charge a trip fee if the blank must be sourced and we return to complete the cut.
Written by Daniel Novak, Owner, Novak Lock & Security Katy at Novak Lock & Security Katy, serving Katy and nearby areas.






