What does it typically cost to rekey a lock?
Lock rekeying is one of the more affordable locksmith services because it reuses the lock you already own. The work itself is usually priced per cylinder — each keyhole that gets new pins counts as one cylinder — and that per-cylinder labor commonly falls in the $20 to $50 range as a typical industry estimate. On its own, that number can look very low, but it is only part of the picture for a mobile visit.
When a locksmith comes to you, there is also a service-call or trip fee that covers travel and the visit itself, generally in the $50 to $100 range. Combining the two, a single on-site rekey often totals roughly $75 to $155, which typically includes the visit, removing and repinning the cylinder, reinstalling it, and providing new working keys. For multiple locks, the trip fee is paid only once, so the average cost per lock drops quickly across the same appointment.
Every figure here is a typical range to help you plan, not a quote. The honest way to know your exact cost is to tell us how many locks you have and what kind they are, and request a free quote.
- Per-cylinder labor: typically about $20 to $50 each (industry estimate)
- Service/trip fee for a mobile visit: typically $50 to $100, charged once per visit
- Typical first-door, on-site total: roughly $75 to $155 including new keys
- All figures are planning estimates, not guaranteed quotes
What goes into the price of a rekey?
Rekeying changes the internal pin configuration of a lock so the old keys no longer work and a new key does. The mechanical work is straightforward for a trained locksmith, but several real factors move the price within the typical range, which is why two homes rarely pay exactly the same.
The biggest single factor is how many cylinders you need rekeyed. Because the trip fee is fixed per visit, the first lock effectively carries that cost while each additional lock only adds per-cylinder labor. Lock type and brand matter too: a standard residential knob or deadbolt is quick, while high-security cylinders, certain smart-lock cylinders, or unusual hardware can take longer and use different parts. Condition and access play a role as well — a stiff, worn, or paint-clogged lock takes more time than a clean, smooth one.
- Number of cylinders — more locks lower the average per-lock cost on one visit
- Lock type and brand — standard residential vs. high-security or specialty cylinders
- Condition and access — worn, stiff, or hard-to-reach locks take longer
- Number of new keys cut — a couple are usually included; extra copies may add a small amount
- Keying alike — setting several locks to one key, often little or no added cost during a rekey
Should I rekey or replace — and which is cheaper?
For most situations, rekeying is the more economical choice because it keeps your existing hardware and only changes the part that controls which key works. Industry figures generally put rekeying at roughly 30% to 40% of the cost of buying and installing a comparable new lock, so if your locks are mechanically sound, rekeying usually wins on price.
Replacement makes more sense when the hardware itself is the problem — a lock that is physically damaged, badly worn, very old, or one you want to upgrade to a higher security grade or a smart lock. For reference, replacing a deadbolt commonly falls in the $100 to $350+ range per lock as a typical estimate once hardware, labor, and the trip fee are counted, which is why people upgrade hardware deliberately rather than by default.
A simple rule of thumb: rekey when the key control is the issue (you moved in, lost a key, or had tenant turnover) and the lock still works well; replace when the lock is failing or you specifically want different hardware.
- Rekey is typically about 30% to 40% of replacement cost (industry estimate)
- Rekey when locks work fine but key control changed — new home, lost keys, turnover
- Replace when locks are damaged, worn out, very old, or you want a security upgrade
- Deadbolt replacement: typically $100 to $350+ per lock including hardware, labor, and trip fee
What does it cost to rekey a whole house?
Rekeying every exterior lock at once is usually the best value because the trip fee is charged a single time for the visit. A whole-home rekey commonly lands in the $100 to $300 range as a typical industry estimate, depending mainly on how many cylinders you have — a small condo with two doors sits at the low end, while a larger home with front, back, side, and garage-entry locks moves up.
Many people use a whole-home rekey as a chance to simplify their keys. 'Keying alike' sets compatible locks so one key opens them all, and because the locksmith is already servicing each cylinder, this is often available at little or no extra cost. That convenience — one key instead of four — is a common reason new San Jose homeowners rekey everything in a single visit rather than piecemeal.
If you are budgeting, count your cylinders first (don't forget the garage entry door and any side gate hardware), then plan around one trip fee plus per-cylinder labor for the rest.
- Whole-home rekey: typically $100 to $300 as an industry estimate range
- One trip fee per visit — doing all locks together lowers cost per lock
- Keying alike (one key for the house) is often little or no extra during a rekey
- Count every exterior cylinder, including garage-entry and gate locks, before estimating
When is rekeying the smart move for San Jose homeowners and renters?
Rekeying is most worthwhile any time you can't be sure who holds a working key. Buying a home in the San Jose and South Bay area is the classic example — previous owners, agents, contractors, cleaners, and neighbors may all have copies, and rekeying quietly invalidates every old key without touching your hardware or your budget for a full lock replacement.
It is also a practical step after losing a key or having one stolen, after a roommate or tenant moves out, after a breakup or household change, or when you simply want to consolidate several mismatched keys into one. Landlords and small property managers often rekey between tenants because it is fast, affordable, and far cheaper than replacing every lock at turnover.
Because rekeying does not change the look or fit of your doors and keeps your existing finishes, it's a low-disruption way to reset your home's security. If any of these situations fit, the next step is simple: request a free quote and we'll give you an honest, itemized estimate for your specific locks.
- After buying a home — cancel every unknown old key without replacing hardware
- After a lost or stolen key, or a household change
- Between tenants — a fast, low-cost reset for landlords and property managers
- To consolidate mismatched locks down to a single key
- Keeps your existing doors, finishes, and hardware intact
