Rekey vs Replace Locks: Which Is Right for You?
Complete comparison of rekeying vs replacing locks: costs, when to choose each option, and why Austin homeowners should rekey when moving into a new home.
Quick Answer: Rekeying changes your lock's internal pins so old keys don't work—the hardware stays the same. Replacing installs entirely new lock hardware. Rekey (a fair price/lock) if your locks work fine but you need new keys. Replace (a fair price/lock) if locks are damaged, outdated, or you want to upgrade security.
Both options improve your security, but they serve different purposes and come at different price points. This guide explains exactly what each involves, when to choose one over the other, and what you can expect to pay in Austin.
What Is Rekeying?
How it works:
1. The locksmith removes the lock cylinder
2. Replaces the internal pins with new ones
3. Creates a new key that matches the new pin configuration
4. Reinstalls the cylinder
After rekeying, old keys no longer work. Only the new key opens the lock. The process takes about 10-15 minutes per lock.
What Is Lock Replacement?
When replacement is necessary:
- The lock is physically damaged or worn
- You want to upgrade to a higher security rating
- The lock is incompatible with rekeying (some cheap or proprietary locks)
- You're changing from a knob lock to a deadbolt
- You want to install a smart lock
Cost Comparison: Rekey vs Replace
Rekeying costs (per lock):
- Standard lock: a fair price
- High-security lock: a fair price
- "Keyed alike" discount: Often a fair price per additional lock
Replacement costs (per lock):
- Basic deadbolt: a fair price
- Mid-range deadbolt: a fair price
- High-security deadbolt: a fair price
- Smart lock: a fair price+
Labor is typically included in locksmith quotes. If you have multiple locks, rekeying is significantly more affordable than replacing all of them.
When to Choose Rekeying
- Moving into a new home — Previous owners, realtors, contractors, and neighbors may have copies of your key
- Lost or stolen keys — Someone could have found your key and knows where you live
- After a roommate moves out — Ensure only current residents have access
- After a breakup — If an ex had keys to your home
- Rental property turnover — Between tenants for security and liability
- Matching all locks to one key — Convenience of using a single key for every door
💡 Smart Move: When moving into a new Austin home, rekey all exterior locks immediately—before you move your belongings in. You have no way of knowing how many copies of the old keys exist.
When to Choose Replacement
- Damaged or worn locks — If the lock is difficult to operate or showing wear
- Security upgrade — Moving from Grade 3 to Grade 1 or 2 deadbolts
- Adding deadbolts — If your doors only have knob locks
- Smart lock installation — Upgrading to keyless entry
- Aesthetic reasons — New hardware to match a renovation
- Insurance requirements — Some policies require specific lock grades
What About \"Keyed Alike\" Service?
Benefits:
- One key for all doors (front, back, garage, side)
- Fewer keys to carry
- No fumbling to find the right key
Most locksmiths offer keyed-alike service at a discounted rate when doing multiple locks.
Frequently Asked Questions
Can all locks be rekeyed?
Most standard pin-tumbler locks can be rekeyed, including Schlage, Kwikset, and Baldwin brands. Some very cheap locks or proprietary designs cannot be rekeyed reliably. Your locksmith will advise if your locks are rekeyable.
How long does rekeying take?
A professional locksmith can rekey a single lock in 10-15 minutes. A home with 4-6 exterior locks typically takes 30-60 minutes total.
Is rekeying as secure as replacing locks?
Yes. A rekeyed lock provides the same level of security as the original hardware. If your locks are already high-quality, rekeying offers complete protection against old keys.
Should I rekey when I move into a new home?
Absolutely. You have no way of knowing how many copies of the old keys exist. Previous owners, realtors, contractors, cleaners, and neighbors may all have had access. Rekeying is a small investment for peace of mind.
Can I rekey locks myself?
DIY rekeying kits exist, but they require specific tools and matching pins for your lock brand. Mistakes can render the lock inoperable. For most homeowners, professional rekeying is faster and more reliable.
What is a \"master key\" system?
A master key system allows one key to open multiple locks while individual keys only open their specific lock. This is common in commercial buildings and rental properties but can be set up for homes too.
How do I know if my locks need replacing instead of rekeying?
Replace if: the lock is hard to turn, the key sticks frequently, you see visible damage, or you want to upgrade security. A locksmith can inspect your locks and recommend the best option.
Will rekeying work if I lost all my keys?
Yes. The locksmith will pick or unlock the door first, then rekey the lock. You don't need an existing key to rekey—but you will need to verify you own or rent the property.
What's a high-security lock?
High-security locks have features like pick-resistant pins, drill-resistant plates, and bump-proof mechanisms. Brands like Medeco, Mul-T-Lock, and ASSA are common high-security options. They cost more but offer significantly better protection.
Can smart locks be rekeyed?
Digital-only smart locks don't have physical keys to rekey. For smart locks with backup key cylinders (like Schlage Encode), the cylinder can be rekeyed like any standard lock.
Key Takeaways
- Rekeying (a fair price/lock) is ideal when locks work fine but you need new keys
- Replacement (a fair price/lock) is necessary for damaged locks or security upgrades
- Always rekey when moving into a new home—before moving in
- Most standard locks can be rekeyed quickly by a professional
- Consider \"keyed alike\" service so one key works all your locks
Need Locksmith Services in Austin?
Our expert team is available 24/7 for all your locksmith needs.
Get a Free Quote