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 Lock Installation & Rekey in Marietta: What to Know First
We provide independent Sargent lock installation and rekey service in Marietta, typically scheduling same-day or next-day appointments depending on parts availability. Most residential Sargent rekeys run $45-$85 per cylinder, and lock installations range $180-$420 depending on the series and door prep required. The price we quote on the phone is the price on the invoice - Haven Standard Clause 1, in effect since 2002, prohibits our technicians from changing it at your door.
This page is for Marietta homeowners and property managers who already own Sargent hardware and need it installed, rekeyed, or assessed for replacement. We work on Sargent as an independent service provider - not affiliated with or authorized by the manufacturer - which means we source parts based on what your specific lock needs, not a corporate parts mandate. Call (762) 252-5919 for a written estimate with no call-out surcharge.
How Sargent Products Fail - and How We Fix Them
- Sargent 10-Line cylindrical levers: The clutch mechanism in these Grade 1 commercial levers strips under torque when tenants force the lever instead of turning the key. We see this in Marietta rental properties near the Town Center corridor, where high tenant turnover accelerates wear. We replace the clutch assembly with OEM Sargent parts or convert to a heavy-duty aftermarket clutch if the customer wants extended durability.
- Sargent Signature Series deadbolts: The deadlatch tailpiece fractures where it meets the actuator, leaving the key turning freely with no bolt movement. This is a design stress point, not user error. We diagnose it by feel - the key spins with no resistance at the 3 o’clock position - then replace the tailpiece and inspect the strike alignment, since a misaligned strike is what usually caused the fracture.
- Sargent 8200 Series mortise locks: The hub springs fatigue after roughly 8-12 years of daily use, causing the lever to sag or not return to horizontal. Marietta’s humidity swings from summer to winter accelerate corrosion in the spring housing. We rebuild the hub with new springs and lubricate with PTFE-based grease, or recommend full mortise replacement if the case itself has cracked at the mounting screw bosses.
- Sargent KP10 keypad locks: The membrane keypad delaminates from moisture intrusion, usually at the bottom edge where rain tracks down the door. We’ve replaced dozens of these in Marietta after the 3-4 year mark. We can source a replacement keypad module or convert the door to a hardwired electronic lock if the customer wants to abandon battery-powered keypads entirely.
- Sargent BHL lever sets (residential): The cylinder retaining clip corrodes and snaps, letting the cylinder pull out with the key. This happens faster on south-facing doors in Marietta where afternoon sun bakes the hardware. We replace the clip, rekey the cylinder if needed, and often recommend upgrading to a stainless steel retaining system if the door gets direct exposure.
Our Sargent Lock Installation & Rekey Process

- 1
Call and scope: You describe the lock, the symptoms, and the door type. We identify the Sargent series by your description and confirm parts availability. The dispatcher quotes a firm price range before scheduling.
- 2
On-site diagnostic: Our technician arrives in a marked van, verifies the model and condition, and confirms the exact failure. For rekeys, we count cylinders and note keyway type (Sargent LA, LB, or LD keyways have different blank availability).
- 3
Parts decision: We stock common Sargent cylinders, latches, and clutch kits. For obsolete or specialty items, we source OEM through our distributor or specify quality aftermarket equivalents - never a downgrade without your written approval.
- 4
Repair or installation: Rekeys are done on-site with pinning kits calibrated to Sargent factory specs. Installations include door prep verification - we check backset, cross-bore diameter, and edge bore alignment before the new lock goes in.
- 5
Testing and documentation: Every key is tested in every cylinder position. The technician photographs the completed work, records the key codes, and leaves you a written invoice matching the phone quote.
- 6
Warranty activation: The 365-Day Done Right Promise applies automatically. If the lock malfunctions from our work or parts, we return and correct it at no charge.
What Sargent Lock Installation & Rekey Costs in Marietta
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Sargent residential rekey (per cylinder) | $45-$85 | Keyway type (LA/LB/LD), number of keys cut, after-hours scheduling |
| Sargent deadbolt installation | $180-$290 | Door prep needed, strike reinforcement, finish grade |
| Sargent lever set installation | $220-$340 | Backset conversion, through-bolting required, commercial Grade 1 vs. residential Grade 2 |
| Sargent mortise lock rebuild or replacement | $340-$620 | Case condition, cylinder upgrade to high-security, door modification for larger prep |
| Sargent keypad/electronic lock installation | $380-$720 | Hardwire vs. battery, network integration, existing door compatibility |
These are real 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. There is no call-out surcharge added on arrival. Call (762) 252-5919 for your exact quote - estimates are free.
Why Marietta Homeowners Call Novak Lock & Security Marietta for Sargent Work

We’ve handled Sargent hardware in Marietta since 2002, from the original 6- and 7-pin systems through current Signature and 10-Line products. Daniel Novak and our technicians know the difference between an LA keyway that takes a standard blank and an LD that requires factory ordering - we don’t guess and we don’t bill you for our learning curve.
Our background-checked, uniformed technicians work to The Haven Standard: documented photo record on every visit, written price before any work starts, and the 365-Day Done Right Promise backing every installation and rekey. We also stock and service Schlage, Kwikset, and Medeco, so if your Sargent lock is obsolete or you want to upgrade security grades without replacing the door, we can specify the right alternative and quote it in writing.
The name on the invoice is the same name on the van. That’s the whole argument.
FAQs
Rekeying does not void a Sargent manufacturer’s warranty if performed with factory-spec pins and proper pinning techniques. As an independent Sargent service provider, we use OEM pinning kits and document the key codes so any future warranty claim has a service record attached. If your lock is still under original factory warranty, we note that on the invoice for your files. Call (762) 252-5919 if you want us to verify your warranty status before scheduling.
Most residential Sargent rekeys are completed in 20-40 minutes on-site. Mortise lock rekeys or multi-cylinder master key systems take longer - typically 45-90 minutes - because of the precision pinning and testing required. We schedule by the job, not by the hour, so the price is the same whether it takes 20 minutes or an hour. Call (762) 252-5919 for a time estimate based on your specific hardware.
Repair makes sense when the lock body is sound and parts are available - typically for 10-Line and 8200 Series hardware less than 15 years old. Replacement is the better value when the case is cracked, the finish is degraded beyond matching, or the lock uses a discontinued keyway that limits future rekeying. We diagnose first, then quote both options in writing so you can compare real numbers, not guesswork.
We stock common Sargent cylinders, latches, and clutch components for same-day service. Obsolete or specialty items - early B-Series keyways, certain KP10 keypad modules - require 1-3 business days through our distributor. We tell you the parts status when you call so you can decide whether to wait or explore an aftermarket equivalent that we can install immediately.
Every Novak Lock & Security Marietta technician is background-checked, uniformed, and trained on Sargent pinning specifications, mortise rebuild procedures, and electronic lock programming. We leave a documented photo record with you at job completion, and every invoice includes the technician’s name and the Haven Standard clause that guarantees the quoted price. If you want to verify credentials before scheduling, call (762) 252-5919 and we’ll answer directly - no voicemail queue.
Written by Daniel Novak, Owner & Lead Technician, Novak Lock & Security Marietta at Novak Lock & Security Marietta, serving Marietta and nearby areas.






