Whole-House Rekey After a Cornelius Move-In — 9 Cylinders, 45 Minutes, $185
A lot of new homeowners in the Lake Norman area ask the same question on closing day: should I rekey the house or replace all the locks? The short answer is rekey if your existing hardware is in good shape — it's 4-5× cheaper and gives you the same security outcome (old keys stop working). Here's a real Cornelius rekey from last week that walks through exactly how it works.
The call
Wednesday afternoon, 3:30 PM. Phone rings. Cornelius area code. The caller is a new homeowner — she and her husband had closed on a house in The Peninsula off Bethel Church Rd that morning, and were doing the walk-through with movers arriving Saturday. She wanted every exterior lock rekeyed before the first night they stayed there.
Her situation:
- Property: 4-bed Cornelius single-family home, new construction (2019 build)
- Locks: Original builder-grade Kwikset SmartKey on front, back, garage entry, side door + 2 deadbolts + 1 mortise on the shed = 7 keyed cylinders. Plus a keyed mailbox = 8. Plus the gate cylinder on the side fence = 9 total.
- Previous owners: Original owners — sellers handed over what they said were "all the keys" (3 keys total, 1 per family member they said)
- Concern: Standard one — they had no way to verify all original keys were accounted for. Realtor, inspectors, contractors, cleaners, family members of the previous owners could all have copies.
She found us through a Google search for "Cornelius locksmith rekey."
Our quote on the phone after she described the lock count: $185 all-in for all 9 cylinders, including 4 new keys cut. Time on-site: ~45-60 minutes depending on cylinder condition.
She booked us for Friday afternoon — day before the move.
Why we recommend rekey over replacement (for 95% of move-ins)
The math is simple. For a typical Charlotte-area home with 5-9 cylinders:
| Path | Cost | Outcome |
|---|---|---|
| Replace every lock with new hardware | $700–$1,400 | New keys, new hardware |
| Rekey existing locks | $150–$240 | New keys, same hardware |
Both options achieve the same security outcome: old keys (from previous owner, contractors, cleaners, etc.) no longer work. The new key works.
The hardware on most homes built post-2015 is fine. Kwikset SmartKey, Schlage, Defiant — these locks last 15-25 years if not abused. There's no security advantage to replacement unless:
- A cylinder is physically damaged or visibly worn
- The lock brand is one of the known-defeated grades (we don't see this much in residential)
- The homeowner wants to upgrade to keyless / smart lock (different category)
- The current key is impossible to find at all (rekey requires us to either decode the cylinder or have a working key — usually fine, but occasionally we have to replace if a cylinder won't decode)
For 95% of move-ins we see in Cornelius, Huntersville, Davidson, and Mooresville, rekey is the right call. We tell people that on the phone — we don't push hardware sales they don't need.
On-site at the Cornelius home
Friday 1:15 PM. Our tech arrived at the Peninsula home — 11 minutes from our HQ within Cornelius.
Walk-through (8 minutes):
We always do a walk before we start. Counted cylinders, noted brands and conditions:
- Front door deadbolt (Kwikset SmartKey, excellent condition)
- Front door knob lock (Kwikset, excellent)
- Back patio door deadbolt (Kwikset SmartKey)
- Back patio door knob (Kwikset)
- Garage entry door deadbolt (Kwikset SmartKey)
- Side service door deadbolt (Kwikset, builder-grade)
- Shed door mortise lock (Master Lock — older but functional)
- Gate latch cylinder (Master — functional)
- Mailbox (USPS-approved cluster mailbox — different process, we noted but didn't include)
Total locks to rekey: 8 (mailbox kept as separate decision; she contacted USPS later for that one).
All cylinders confirmed rekeyable.
Rekey work (29 minutes):
Started at the front, worked clockwise around the house:
For each cylinder:
- Removed lock from door
- Disassembled cylinder
- Pulled old pins, replaced with new pin set per the new bitting code
- Reassembled, reinstalled in door
- Tested with new key
The 7 Kwikset SmartKey cylinders took ~3 minutes each on average — Kwikset SmartKey is specifically designed for easy rekey (the cylinder can be rekeyed without disassembly using the "SmartKey reset tool" + new key bitting). We use a manual decode/rekey approach instead because it lets us pick any bitting (SmartKey's automated rekey limits the available bittings somewhat).
The Master mortise lock on the shed took ~7 minutes — older design, full disassembly required.
The Master gate cylinder ~4 minutes.
Key cutting + testing (8 minutes):
Cut 4 keys to the new bitting on our truck-mounted Triton key machine. Tested each key in every cylinder, both directions. All smooth.
Handed her the 4 new keys + the bag of old keys (now non-functional — kept for her own peace of mind to confirm they really don't work anymore).
Total on-site: 45 minutes.
What it cost
| Line | Cost |
|---|---|
| Rekey labor — 8 cylinders | $112 |
| New pin sets (Kwikset + Master) | $24 |
| 4 new keys cut to new bitting | $24 |
| On-site travel (Cornelius local) | $25 |
| Total | $185 |
Compare:
- Big-box hardware store: typically $25/cylinder labor + $5/key = ~$220 for the same job
- New hardware replacement: $700–$1,200 for builder-grade replacements
- Our service: $185, on-site, 45 minutes
No upsell on smart locks (which we DO install when customers want them — see smart lock installation) — just the work she asked for.
When to actually replace (not rekey)
We're honest about when rekey is NOT the right call:
1. Visible physical damage or wear
If a cylinder turns rough, sticks, or has visible damage at the keyway, the internal components are worn. Rekey installs new pins but the cylinder body is the same — won't fix a worn cylinder. Replace.
2. Upgrade to smart lock / keypad
If you want keyless entry, app control, temporary codes for guests — that's a hardware upgrade, not a rekey. We do those installs too ($120-180 per door for typical Schlage Encode / Yale Assure).
3. Old + uncommon lock that's hard to source pins for
Rare antique locks, old commercial mortise systems, certain European hardware — pin kits can be hard to source. Sometimes replacement is faster + cheaper.
4. Lock is below modern security standards
If your house has builder-grade hardware from 1985 that's ANSI Grade 3 (residential basic), you're not getting much security regardless of rekey. Upgrade to Grade 2 commercial-residential. This is rare in Charlotte-area homes built post-2000.
5. Building security after a break-in attempt
If the lock was forced or tampered, the cylinder internals may be damaged and the strike plate / door frame may need reinforcement. Different category — usually full hardware swap + reinforcement.
What we charge for residential rekey across Lake Norman
| Cylinder count | Typical range | Time on-site |
|---|---|---|
| 1-3 cylinders (single door + extras) | $80–$130 | 15-25 min |
| 4-6 cylinders (typical family home) | $130–$200 | 25-40 min |
| 7-10 cylinders (larger home + outbuildings) | $180–$280 | 40-60 min |
| 11+ cylinders (estate / multiple buildings) | $260–$420 | 60-90 min |
All prices include rekey labor + new pin sets + 4 keys cut to the new bitting. Additional keys $6 each.
We service Cornelius, Huntersville, Davidson, Mooresville, the Charlotte metro, and surrounding NC. Mobile service — we come to you, no need to bring locks anywhere.
When to call
Best times to rekey:
- Move-in day (most common — fresh start, no idea who has old keys)
- After a tenant moves out (rental property turnover)
- After loss of a key (especially if it had your address on it)
- After firing a cleaner or contractor who had access
- After a divorce or separation (sensitive but common)
- Every 5-7 years as routine maintenance for homes with high traffic
Need a Cornelius / Lake Norman rekey?
Call (336) 790-2233 — give us your lock count and brand on the phone, we'll quote firm before we dispatch. Same-day service when our schedule allows.
For move-ins we usually fit in 24-48 hour windows around closing day. Tell us the closing date when you call.
See more about lock rekeying service, smart lock installation, or our Cornelius locksmith service area.
Customer name and exact address anonymized. Lock count, cylinder brands, pricing, and timeline are accurate to the job described.