Rekey vs. Replace: Which Should You Choose After Buying a Tampa Home?

Why rekey is the default answer for new homeowners

When you close on a Tampa-area home, there's no good way to know who has working keys. The previous owners, their cleaners, dog walkers, contractors, the realtor, the realtor's assistant, the listing photographer — any of them might still have a key sitting in a drawer. Rekeying solves this problem completely: we open each cylinder, replace the small brass pin stack with new ones, and cut you a fresh key. The lock body and exterior hardware stay; only the internal cuts change. Cost in Tampa Bay is $25–$45 per cylinder, with most full-house jobs landing between $120 and $180.

Replacement does the same thing — old keys stop working — but at 3–4× the price, with new hardware you might not love and no security benefit if your existing locks are already decent quality.

When you should replace instead

Replacement makes sense in four specific cases. First, when the existing hardware is Grade-3 builder-basic (the $12 knob from Home Depot common in 1990s–early 2000s Tampa subdivisions) — you're paying $30–$45 to rekey something that should be $145–$225 to upgrade to Grade 2 anyway. Second, when the lock is mechanically worn — the deadbolt sticks, the knob spins loose, or the key drags on the way out. Third, when you want a smart lock with a keypad or auto-lock. Fourth, when the existing keyway is obsolete or rare and key duplication will be a headache for the next ten years.

• Replace if: hardware is Grade 3 / builder-basic (common in 1990s–2000s Tampa builds)
• Replace if: deadbolt drags, knob spins, key catches — mechanical wear
• Replace if: you want smart lock features (keypad, auto-lock, app control)
• Replace if: the keyway is unusual and duplicate keys will be a hassle
• Otherwise: rekey

What 'rekey to one key' means and why you want it

If your home has three exterior doors and a garage entry, those are probably four different keys today. Ask the locksmith to 'key-alike' all four cylinders during the rekey — one key opens everything. No price premium for that on our jobs, and it's the single biggest day-to-day quality-of-life win.

The Tampa-specific things to think about

Florida humidity is hard on builder-grade locks. If you've moved into a home that's been vacant for 6+ months, plus the AC was set warm, the internal pins and springs may have a film of corrosion on them. A rekey on a sticky lock is a temporary fix — the new pins will bind too within a year. In those cases we'll recommend a lubricate-and-test before deciding rekey or replace.

Coastal salt air in Clearwater, St. Pete Beach, and Madeira Beach accelerates exterior trim corrosion. If you're within a mile of saltwater and the lock face is already pitted, replace with a marine-grade or coated cylinder rather than rekeying corroded hardware.