1. Rekeying Locks

• What It Is: Adjusting the existing lock to work with a new key by changing its internal pins/tumblers.
• When to Rekey:
• Multiple keys for different locks are inconvenient.
• After moving into a new home.
• Lost keys or changing concierge services (e.g., babysitter, pet sitter).
• Cost:
• Professional rekeying: $20–$50 per lock (labor-focused).
• DIY rekey kits: $10–$25 (match kit to lock manufacturer).
• Pros:
• Affordable and quick.
• Retains current lock hardware.
• Great for high-quality locks.
• DIY Feasibility:
• Easy with a rekey kit.
• Ensure you have the original key; otherwise, picking the lock costs extra.

2. Changing Locks

• What It Is: Replacing the entire lock and key system with new hardware.
• When to Replace:
• Upgrading to keyless or master key systems.
• Existing locks are low-quality, rusted, or broken.
• You want a new aesthetic (e.g., matching hardware finishes).
• Cost:
• Professional installation: $75/hour + hardware costs.
• DIY hardware kits: Varies, starting around $20–$150.
• Pros:
• Modernization options, like keyless entry.
• New aesthetic or improved security.
• DIY Feasibility:
• Manageable for modern standard locks.
• Older or specialty locks may require a locksmith.

Comparison: Rekeying vs. Replacing

| Feature | Rekeying | Replacing |
|-----------------------|------------------------|-----------------------|
| Cost | $20–$50/lock | $75/hour + hardware |
| Time | Quick | Longer for installation |
| DIY Feasibility | Easy with kit | Moderate (standard locks) |
| Best Use Case | Updating keys only | Hardware upgrade |

Deciding Factors

• Budget-Friendly? Rekey.
• Upgrading Aesthetics or Security? Replace.
• Existing Locks High-Quality? Rekey.
• Old, Rusty Locks? Replace.
• Adding a Master Key or Keyless System? Replace.

Pro Tip:

Hire a locksmith if you're unsure about compatibility, security needs, or complex installations. They can also recommend whether rekeying or replacing is the best fit for your situation.

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