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 Residential Locksmith in Marietta: What to Know First
We provide independent Sargent residential locksmith service in Marietta with same-day scheduling for most calls and emergency response when you’re locked out. A standard Sargent deadbolt rekey runs $28-$45 per cylinder, and a full Sargent lock change with installation typically falls between $140-$220, both quoted in writing before we dispatch. This page is for Marietta homeowners who need Sargent hardware serviced, repaired, or replaced - whether you’re dealing with a sticking Sargent 6600 series deadbolt in East Cobb or need a full rekey after closing on a home near Kennesaw Mountain.
Call (762) 252-5919. A live person answers, 24/7, and the price you hear is the price on the invoice. Haven Standard Clause 1.
How Sargent Products Fail - and How We Fix Them
- Sargent 6600 series deadbolt - tailpiece shear failure. The flat steel tailpiece that connects the thumbturn to the bolt can crack at the stress riser where it narrows. In Marietta, we see this most often on doors with seasonal humidity swing - the wood expands in summer, binding the bolt, and homeowners force the turn. We replace with an OEM Sargent tailpiece or a hardened aftermarket equivalent, then check the door edge for binding before we leave.
- Sargent 10-Line cylindrical leverset - spring cage fatigue. The return spring inside the lever chassis loses tension after roughly 8-12 years of daily use. The lever sags or doesn’t return to horizontal. We disassemble the chassis, replace the spring cage with a factory-spec Sargent component, and re-lube with HHS-2000 - not WD-40, which attracts dust in Georgia’s pollen-heavy air and accelerates wear.
- Sargent 8200 series mortise lock - latchbolt misalignment. The adjustable front plate shifts as the door frame settles, common in Marietta’s clay-heavy soil zone where foundation movement is routine. The latch misses the strike or requires shoulder pressure to engage. We diagnose whether it’s a strike adjustment, a worn latch, or frame shift, then correct it without damaging the Sargent trim - which is often discontinued and hard to replace.
- Sargent XC cylinder - key extraction with broken key. The XC’s tight keyway tolerances mean a broken key wedges firmly, especially if the cylinder pins are gummed with old lubricant. We extract with spiral extractors, never by forcing the plug, then flush the cylinder and re-pin to the original key if it’s available. If the key is lost, we code-cut a replacement from the cylinder bitting.
- Sargent 6500 series auxiliary deadbolt - screw post stripping. The zinc alloy housing around the mounting screws can crack when over-tightened or when door movement puts shear stress on the fasteners. We helicoil or relocate the mounting, or recommend upgrading to a steel-bodied Sargent BHL if the door sees heavy use. We tell you which path costs what before we start.
Our Sargent Residential Locksmith Process

- 1
Call and describe the lock. We ask for the series number if you can find it - usually stamped on the latch face or edge of the door. If you can’t, we work from symptoms.
- 2
Dispatch with parts intelligence. Based on your description, our technician loads the van with likely Sargent components - OEM where critical, quality aftermarket where equivalent. We don’t guess and we don’t make two trips.
- 3
On-site diagnostic. We identify the exact failure: tailpiece crack, spring fatigue, latch misalignment, or cylinder issue. Daniel Novak trains our techs to name the part before naming the price.
- 4
Written quote, fixed. You get a single number. The technician is contractually prohibited from changing it at the door. Haven Standard Clause 1. This rule has been in place since 2002.
- 5
Repair or replace with documentation. We perform the work, test all functions - key operation, thumbturn, latch throw, door closure - and photograph the completed installation. You keep the photo record.
- 6
Warranty and close. Every Sargent job carries our 365-Day Done Right Promise. If it’s not right, we make it right. The invoice documents what was done, what parts were used, and what you paid.
What Sargent Residential Locksmith Costs in Marietta
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Sargent rekey (per cylinder) | $28-$45 | Number of pins, key quantity, after-hours call |
| Sargent deadbolt installation (labor + mid-grade lock) | $140-$220 | Grade of hardware, door prep condition, steel door vs. wood |
| Sargent mortise lock repair | $180-$340 | Parts availability, trim condition, frame realignment needed |
| Sargent lockout - residential | $95-$145 | Time of day, lock complexity, travel distance from Marietta center |
| Sargent cylinder replacement (key lost) | $75-$130 | Keyway type, need for code-cutting vs. impressioning |
These are honest ranges for the Marietta market, not teaser rates. The full price is quoted on the phone before anyone is dispatched, and it is the price on the invoice. No call-out surcharge added on arrival. Call (762) 252-5919 for an exact quote - estimates are free.
Why Marietta Homeowners Call Novak Lock & Security Marietta for Sargent Work

We’ve serviced Sargent hardware in Marietta since 2002 - from the original 1970s-era mortise locks still working in homes near Whitlock Avenue to new 10-Line installations in the Barrett Parkway corridor. Daniel Novak grew up in Culver City, CA, trained through West Los Angeles College’s locksmithing program, and built this operation on a single rule: the name on the invoice is the same name on the van. That’s the whole argument.
Our techs carry Sargent, Schlage, Kwikset, and Medeco components - so if your Sargent trim is discontinued or your security needs have changed, we can shift to a compatible solution without a second dispatch. Every visit produces a documented photo record. Every technician is background-checked and uniformed. Every call reaches a live person. The 365-Day Done Right Promise applies to every lock installation, rekey, or emergency call. Haven Standard Clause 1 applies to every price.
FAQs
No - independent service does not void a valid Sargent warranty, provided OEM parts are used and installation follows factory specifications. As an independent Sargent service provider, we use OEM components where warranty preservation matters and document the parts on your invoice. If your lock is still under Sargent’s limited warranty, we note the serial number and date of manufacture so you have a record. Call (762) 252-5919 if you need warranty documentation for a claim.
Yes - we stock common Sargent components and source discontinued parts through our distributor network, though some 1970s-1980s trim lines require salvage or compatible substitution. We tell you before we start whether your part is available, what the lead time is, or whether a modern Sargent equivalent will fit your prep without modification. The written quote includes all options.
Repair makes sense when the chassis is sound and the failure is isolated - a broken tailpiece, worn spring, or stuck cylinder. Replace when the housing is cracked, the trim is obsolete, or you need a security upgrade. We diagnose first, then quote both paths if both are viable. Most Sargent mortise locks outlast two or three generations of cylindrical hardware, so repair is often the better value.
Standard Sargent service is typically scheduled same day or next day. Emergency lockout response in Marietta usually runs 25-45 minutes depending on time and your location relative to our active calls. When you call (762) 252-5919, we give you a firm arrival window, not a callback.
We service Sargent XC and other restricted keyway cylinders where we have the appropriate blanks and pinning kits. For proprietary systems under active key control contracts, we may need to verify your authorization before proceeding - we don’t bypass key control, we work within it. If your Sargent system is part of a master key hierarchy, we coordinate with the system’s administrator to maintain bitting integrity.
Call (762) 252-5919 for Sargent residential locksmith service in Marietta. A live person answers. You’ll get a firm price before we dispatch, a documented record when we finish, and the 365-Day Done Right Promise on everything we install.
Written by Daniel Novak, Owner & Lead Technician, Novak Lock & Security Marietta at Novak Lock & Security Marietta, serving Marietta and nearby areas.






