When Should You Rekey vs. Replace Your Locks?

One of the most common questions we get from Newton MA homeowners is: should I rekey my locks or replace them? The answer depends on the condition of your existing hardware and your specific situation. Here's how to think through it.

What Is Rekeying?

Rekeying changes the internal pins inside the lock cylinder so that old keys no longer work and a new key is required. The hardware stays the same — only the key changes. It's typically faster and cheaper than full replacement.

What Is Lock Replacement?

Lock replacement involves removing the existing hardware entirely and installing a new lock. This makes sense when the existing hardware is damaged, worn, low-quality, or when you want to upgrade to a different type of lock (like a smart lock or high-security deadbolt).

Choose Rekeying When:

• You just moved into a new home and the locks are in good condition
• You lost a key and want to invalidate the old one
• A roommate or contractor no longer needs access
• You want to key all your locks to the same key (key alike)

Choose Replacement When:

• The lock hardware is worn, stiff, or damaged
• The locks are low-quality or builder-grade
• You want to upgrade to a smart lock or high-security cylinder
• The lock was damaged in a break-in attempt

The Honest Answer

In most post-move situations with decent existing hardware, rekeying is the right choice. It accomplishes the security goal at a lower cost. If you're unsure, call us at (617) 203-7825 — we'll assess on site and give you an honest recommendation without upselling.