Skip to content
Open 24/7 San Luis Obispo & nearby
15 Min Locksmith logo (805) 977-6159

What Locks Do Locksmiths Recommend?

For an exterior door, a properly fitted deadbolt is a strong starting point; the right choice also depends on the door, frame and how you use the entry. Call (805) 977-6159 to arrange mobile lock rekeying or replacement at your door.

Locksmith rekeying tools and lock pins

Need help now? (805) 977-6159

Start with a deadbolt on an exterior door, fitted to the door and frame. A keyed entry knob or lever can be convenient, but it should not be treated as a substitute for a deadbolt when you want a separate locking point.

The best lock is not simply the one with the most features. It must fit the door’s thickness and existing preparation, operate smoothly, and let everyone in your household use it reliably. A well-chosen lock can still disappoint if the door or frame is loose, damaged or out of alignment.

For a door with an existing lock in good condition, rekeying may be the better choice than replacing the hardware. It changes which key operates the lock while leaving the lock in place, so it can make sense after a move or when you no longer want an old key to work.

Which Lock Option Fits Your Door and Routine?

Deadbolt

Choose this for a separate locking point on an exterior door. Check that the bolt extends and retracts smoothly and that the door closes without needing to be forced.

Rekeying an existing lock

Consider this when the lock works properly but you want a different key to operate it. A locksmith can check whether the lock is compatible before rekeying.

Lock replacement

This fits a lock that is damaged, unreliable, or unsuitable for the door. Replacement may also make sense when you want a different lock style or features.

Smart lock

Consider one if keypad or app-based entry suits your routine. Check that the lock fits your door and that you have a plan for battery changes and access when the keypad or app is unavailable.

Should You Rekey or Change the Lock on Your Door?

Rekeying changes which key works; replacing changes the hardware. A locksmith can inspect the lock and door to help identify which choice addresses the actual problem.

Need help now? (805) 977-6159

What to Check Before Choosing a Deadbolt or Smart Lock

Look at the door, frame and existing lock as one system. Note whether the door is wood, metal or another material, whether it closes squarely, and whether the current bolt lines up with the opening in the frame. These details help determine whether a new lock will fit or whether the door needs attention first.

For a smart lock, check the maker’s guidance for your specific model before buying. Confirm door compatibility, how the lock receives power, and how you will manage codes for household members. For Kwikset lock instructions and product support, use the Kwikset support page.

Do not assume that a newer or more complicated lock automatically improves security. A lock that is difficult for household members to use may be left unsecured, and a poorly aligned deadbolt may not extend fully. Test the door’s normal operation and resolve any sticking before relying on the new setup.

Seven Steps to Choose and Check a Door Lock

Use these owner-level checks to narrow down the right service and hardware. Do not take apart a lock or force a door that is sticking; ask a locksmith to inspect it.

  1. Identify the door — Note whether it is an exterior entry door, an interior door or a shared entrance. Check that the lock option you are considering is intended for that type of door.
  2. Describe the current problem — Record whether the key turns, the latch moves and the door closes normally. This helps distinguish a key-control issue from a damaged or misaligned lock.
  3. Check the door and frame — Look for a loose frame, visible damage or a bolt that does not line up with its opening. If the door must be pushed or pulled hard to latch, resolve that issue before choosing new hardware.
  4. Decide whether old keys should still work — If you want to keep the current lock but stop old keys from working, ask about rekeying. If the lock itself is damaged or you want different hardware, ask about replacement.
  5. Record the lock details — Note the lock style, door material and any visible maker or model information. Compare these with the manufacturer’s fit guidance rather than assuming a new lock will match the existing opening.
  6. Consider who needs access — Think about how many people use the door and whether physical keys or keypad entry better suit your routine. For a keypad, decide how you will manage codes and access if the batteries run down.
  7. Test the completed work — With the door open, check that the key or authorized entry method works and that the deadbolt and latch move smoothly. Then close the door and confirm it locks and unlocks without force.

Signs the Lock or Door Needs More Than Rekeying

Rekeying addresses which key operates a compatible lock; it does not repair a failing lock or correct a door that does not line up. These signs call for an inspection before you choose a service.

Need help now? (805) 977-6159

When a Locksmith Should Inspect the Lock

Call a locksmith when the lock is damaged, the door will not latch normally, or you cannot tell whether the problem is the key, lock or frame. An inspection can establish whether rekeying, repair or replacement fits the condition of the door.

A locksmith can also check compatibility before you buy a deadbolt or smart lock, then confirm that the installed lock operates correctly. For a lock that has failed or cannot be opened, see what locks can locksmiths not open? If you are weighing replacement, our guide explains how much it costs for a locksmith to fit a lock.

Do not force a sticking lock or dismantle hardware if you are unsure how it is assembled. Describe the symptoms and the door type when you request lock rekeying service, so the locksmith can assess whether rekeying is appropriate.

Frequently asked questions

What type of lock should I use on an exterior door?

A properly fitted deadbolt is a strong starting point for an exterior entry door. Check that it fits the door and frame and moves smoothly; a keyed knob or lever should not be treated as a substitute for a separate deadbolt.

Should I rekey or replace locks after moving?

Ask about rekeying if the existing locks work well and you want old keys to stop operating them. If a lock is damaged, unreliable or does not suit the door, have it inspected for repair or replacement instead.

How are locks rekeyed without replacing the whole lock?

A locksmith checks whether the existing lock is compatible, then changes its internal keying so a different key operates it. The existing hardware stays in place, but rekeying will not fix a damaged lock or a door that does not latch properly.

Can every deadbolt be rekeyed?

No; rekeying depends on the lock’s design and condition. A locksmith can inspect the existing deadbolt and confirm whether rekeying is suitable or whether repair or replacement is the better fit.

Choose a Lock That Fits Your Door

Call (805) 977-6159 for mobile lock rekeying or replacement, and describe what your door and lock are doing.

More helpful guides

(805) 977-6159 Get a quote