Rekey or Replace Your Locks? How to Decide

Most door locks on Tampa homes are pin tumbler locks. Inside the cylinder sit small pins of different lengths, and a key works only when its cuts lift every pin to exactly the right height. Rekeying replaces those pins with a new set that matches a new key. The lock body, the deadbolt and the handles all stay on the door, and every old key stops working, including copies you never knew existed.

Because only the pins change, a rekey is also how several locks end up on one key. If your front door, back door and garage entry door share the same keyway (usually, the same brand), they can be rekeyed to match, so one key opens all of them. Our residential locksmith services cover rekeys, lock changes and deadbolt upgrades.

Yes. When you buy a house, you can't know how many keys are still out there: previous owners, their relatives, dog walkers, cleaners, contractors and agents may all have had one. Rekeying every exterior lock is the simplest way to start clean, including the doors people forget, like the door from the garage into the house and a side door that rarely gets used.

If your new place came with a keypad, as many newer townhomes south of Gandy Boulevard do, reset its codes along with the keys. Renting? Check with your landlord first, since the locks are usually theirs and many leases spell out how lock changes are handled.

For a full move-in list, see our closing-day rekey checklist.

Rekey. When keys are lost or stolen, the risk isn't the lock; it's the key in someone else's pocket, and rekeying takes that key out of play without buying new hardware. Treat it as urgent if the keys were with anything that points to your home, like a wallet with your ID, mail with your address, or a car with the registration in the glove box.

If a car key was on the same ring, replacing it is a separate job. Our guide to transponder keys, key fobs and smart keys explains what a new car key involves. If it was your only car key, see lost car key replacement.

Any time someone who had a key shouldn't anymore, rekeying is the clean fix. Getting the key back doesn't tell you whether copies were made. That covers a roommate moving out, a relationship ending, a contractor finishing a long job, or a house sitter or short-term rental guest who held a key.

For landlords, rekeying between tenants protects you as much as the next tenant. With several units, a master key system keeps it manageable: each unit has its own key, while the owner or maintenance lead carries one master. As a Tampa locksmith, we set units up under a landlord or property-manager master, rekey between tenants and keep the keying chart current. If keys keep walking away, Mul-T-Lock restricted keys, whose blanks copy shops don't carry, add another layer of control.

For apartment key logs, see our Miya's Law key log guide and free template.

Rekeying fixes a key problem. It doesn't fix a hardware problem. Replace the lock when:

• The cylinder is worn: the key is hard to insert or turn even while the door is standing open.
• The lock is loose on the door, cracked, or was damaged in a break-in attempt.
• Corrosion has set in and the bolt or latch drags. Salt air and humidity are hard on lock finishes and internals, especially in homes close to the bay in South Tampa, Davis Islands and Ballast Point.
• You want a real upgrade: a sturdier deadbolt, a high-security cylinder with restricted keys, or a keypad or smart lock.
• Your doors use different brands and you want one key for everything, in which case one lock may need a new cylinder.

One quick test before you decide: open the door and work the key and the deadbolt. If both move smoothly with the door open but bind when it's closed, the lock is probably fine, and the door or the strike plate needs adjusting. Summer humidity swells doors, and that's one of the most common reasons a healthy deadbolt starts to feel broken. Hurricane season is also a good time to check that every exterior deadbolt throws fully into the frame, and to replace any lock that's already rusting.

If you're replacing anyway, ask whether you want keys at all. A keypad deadbolt gives each person their own code, and deleting one leaves everyone else's alone, which suits families, cleaners, contractors and rentals. Keypad-only models run on batteries and need no Wi-Fi; smart locks add phone control, temporary codes and a log of who came and went.

Many keypad and smart locks still have a key cylinder for backup, and where the lock allows, it can be keyed to match your other locks. See keyless entry and access control for the options we install, or our smart locks guide for a closer comparison.

We don't post prices, because every house is different, but the factors are simple: how many locks or cylinders need work, the brand and grade of the hardware, whether it's a rekey or a full replacement, and any smart-lock setup. Rekeying is usually the more affordable option, since you keep the hardware you already paid for. Quotes are free by phone or through our contact form, and you'll have the price before any work begins.