Quick Answer
After moving into a new home, rekeying is almost always the right choice — it costs 60% less than replacing and delivers the same security outcome. Replace only if the hardware is damaged, outdated, incompatible with smart-lock upgrades, or if you are standardizing hardware across all doors.
AI Summary
Locksmiths Of Colorado Springs recommends rekeying over replacement in most cases, with rekeying starting at $35 per lock — typically 60% less than full replacement.
When you move into a new home — whether a Rockrimmon ranch or a Stetson Hills townhouse — you have no way of knowing how many copies of the current keys exist. Previous owners, contractors, neighbors, cleaners, and agents may all have them.
This guide is a focused rekey-vs-replace decision tree. It does NOT cover the full move-in security checklist (mailboxes, garage codes, smart doorbells, etc.) — for that, see our separate new-homeowner security checklist. Here we answer one question only: should you rekey your existing locks, or replace them entirely?
What Is Lock Rekeying and How Does It Work?
Rekeying changes the internal pin configuration of your existing lock so that all old keys no longer work — only the new key will open it. The lock hardware stays in place; only the internal pins are changed.
A qualified locksmith can rekey all major lock brands on-site. A standard home with 3–5 locks can be fully rekeyed in 30–60 minutes.
When Should You Rekey vs. Replace Locks?
Rekeying delivers the same security result as replacing the lock at a fraction of the cost. You only need to replace locks if they are damaged, worn, or if you want to upgrade to a higher security level or smart lock. Use this checklist as a quick decision tree.
- REKEY: Moving into a new home (almost always the best option)
- REKEY: Lost or stolen keys
- REKEY: After a breakup or change of roommates
- REKEY: Landlord changing tenants
- REPLACE: Lock is physically damaged or not functioning
- REPLACE: Upgrading to a smart lock or high-security lock
- REPLACE: Hardware is very old and worn (common in Old Colorado City historic homes)
- REPLACE: Standardizing brand/color/finish across all exterior doors
How Much Does Rekeying vs. Replacing Locks Cost?
The cost difference is significant. Rekeying 3–5 locks typically costs $100–$250, while replacing the same locks with new hardware costs $300–$700+ depending on the brand and security level. For a typical Briargate or Northgate tract home with 4 exterior doors, rekeying runs $175–$225 all-in versus $400–$600 to swap hardware.
Does Rekeying Preserve My Security Level?
Rekeying does not change the ANSI grade of your hardware. If your locks are already Grade 1 or Grade 2 deadbolts (common in homes built after 2005), rekeying preserves that protection. If your locks are builder-grade Grade 3 or older worn hardware, a rekey leaves you at the same security level you started with — which is why some homeowners mix both approaches: rekey the back and garage doors, replace the front door with a Grade 1 upgrade.
Should I Replace Instead If I Want a Smart Lock?
Yes — if a smart lock is in your plans for the next 12 months, skip the rekey on that door and replace it directly with the smart lock. Rekeying and then replacing a few months later doubles the labor cost. Most major smart locks (Schlage Encode, Yale Assure, August, Kwikset Halo) fit standard door preparations throughout Colorado Springs homes built in the last 40 years.
Frequently Asked Questions
How much does it cost to rekey a house in Colorado Springs?
How long does it take to rekey a house?
Can you rekey any brand of lock?
Should I rekey or just replace everything?
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