When you move into a new home, you don't know how many copies of your keys exist or who might have them. Changing the locks—or rekeying them—is one of the smartest security decisions you'll make on day one. A residential locksmith can handle this quickly and affordably, giving you genuine peace of mind.
Why Change Locks After Moving In
Previous owners, contractors, real estate agents, and family members may all have spare keys floating around. Rekeying or replacing your locks eliminates access for anyone you haven't explicitly authorized. This is especially critical if you've bought a foreclosure, inherited a property, or rented from a landlord with a history of unannounced visits.
Beyond security, changing locks signals ownership and control. It's a practical step that costs far less than dealing with theft or unwanted entry later.
Rekeying vs. Full Replacement
Rekeying involves removing the lock cylinder and reconfiguring the pins inside so old keys no longer work. A residential locksmith typically charges $75–$150 per lock for this service, plus a service call fee of $50–$100. It's the budget-friendly option and works perfectly if your existing locks are in good condition.
Full replacement means installing brand-new locks entirely. Expect to pay $150–$300 per lock, depending on quality and style. Choose this route if locks are damaged, corroded, or if you want an upgrade to a smart lock or higher-grade deadbolt.
For a typical home with front, back, and garage doors, budget $250–$600 for rekeying or $500–$1,200 for replacement.
Steps to Take Before Hiring a Locksmith
Make a list of all entry points: front door, back door, garage entry, side doors, and any sliding glass doors with locks. Decide whether you want the same key to open all locks or separate keys for different entry points—most homeowners prefer one master key for simplicity.
Check your current lock brands and styles. If you're only rekeying, the locksmith will need to know the lock manufacturer to source the correct pins. Take photos of your locks if possible.
Finally, determine your timeline. If you're moving in today, call a locksmith immediately. If you have a few days, you can get competitive quotes and schedule during business hours, which is cheaper than emergency after-hours rates.
Finding and Comparing Residential Locksmiths
Look for locksmiths licensed in your state—requirements vary, but this is a basic quality filter. Check online reviews on Google, Yelp, and the Better Business Bureau for patterns of reliability and fair pricing. Avoid companies that won't quote over the phone; legitimate locksmiths can give ballpark estimates based on lock type and quantity.
Contact at least three locksmiths for quotes. Be specific: tell them the number of locks, the type (deadbolts, mortise, smart locks), and whether you want rekeying or replacement. Request the quote in writing so there are no surprises on the invoice.
Mercoly makes comparing and vetting trusted residential locksmith providers simple by bringing verified options together in one place, so you can review credentials and customer feedback before booking.
What to Expect During the Service
A rekeying appointment typically takes 30–60 minutes for 3–4 locks. The locksmith will remove the cylinder, replace the pins, test the new key, and reinstall the lock. They'll provide you with new keys—usually 3–4 copies—and keep documentation of the work.
For full lock replacement, budget 1–2 hours. The locksmith will remove old hardware, install new locks to the proper depth and alignment, and test everything. If you're installing smart locks, allow extra time for programming and battery installation.
Ask the locksmith to test all keys before they leave and to provide a written receipt listing each lock serviced and whether it was rekeyed or replaced.
Frequently Asked Questions
Q: Can I rekey locks myself, or is a locksmith necessary? Rekeying requires specialized pin removal tools and knowledge of pin sizes and configurations—it's not a DIY job for most homeowners. A professional ensures the work is correct and often costs less than replacing locks entirely.
Q: What if I lose a key after the locksmith finishes? Call the same locksmith and reference your service date. They can rekey that specific lock again for around $75–$100, or reissue copies if they kept your key profile on file.
Q: Are smart locks worth the extra cost when moving in? Smart locks run $200–$400 per unit installed but eliminate the need for physical keys and allow remote access. If convenience and tracking entry matter to you, they're worth considering; otherwise, a good rekeyed deadbolt is perfectly secure.
Compare quotes from licensed residential locksmiths in your area today to secure your new home within 24 hours.