If you just moved into a house, had a tenant move out, or lost track of who still has a key, the first question is usually simple: how much does lock rekeying cost? In most cases, rekeying is one of the most affordable ways to tighten security without replacing all your hardware. But the final price depends on the type of lock, how many cylinders need work, whether you want one key for multiple doors, and whether a locksmith is coming out for standard service or an urgent call.
How much does lock rekeying cost for most homes?
For a typical home, lock rekeying often falls somewhere between $20 and $50 per lock cylinder, plus a service call or mobile trip charge. In many real-world jobs, homeowners end up paying around $100 to $250 total for a small set of locks, depending on how many doors are involved and what condition the hardware is in.
That range is broad for a reason. A front door deadbolt and knob set may have two separate cylinders, while another home may only need a single deadbolt rekeyed. Some locks are straightforward and quick. Others are worn, unusual, or built around restricted keyways that take more time and matching parts.
If you are rekeying several locks at once, the per-lock cost usually becomes more favorable than calling a locksmith out for only one cylinder. That is why many homeowners choose to rekey the front door, back door, garage entry, and side gate at the same time.
What you are actually paying for
Rekeying does not mean swapping the whole lock. A locksmith removes the cylinder, changes the internal pins so old keys no longer work, and cuts new keys to match the updated pinning. The lock stays in place, but the key changes.
That matters because rekeying is usually less expensive than full lock replacement. You are paying for labor, keying parts, new keys, and mobile service, not brand-new hardware unless the locksmith finds a problem with the lock itself.
For many Denver-area customers, the value is not just the lower price. It is the speed. A mobile locksmith can often handle the work on site without the added cost and delay of changing every lock on every door.
What affects lock rekeying cost?
Number of locks and cylinders
This is the biggest factor. More locks mean more labor, more pinning work, and more keys to cut. If your front door has a knob lock and a deadbolt keyed differently, that may count as two cylinders. A patio door, gate lock, mailbox, or interior office door can add to the total.
Type and brand of lock
Basic residential locks are generally the least expensive to rekey. High-security locks, commercial hardware, older mortise locks, and some specialty cylinders can cost more. Antique locks can also require extra care, especially if parts are worn or not easily interchangeable.
Whether you want all locks keyed alike
Many people want one key to work on every exterior door. That is convenient, but it can add a little labor if multiple locks currently use different keyways or are from different brands. Sometimes it is simple. Sometimes it requires more setup or even replacement of incompatible cylinders.
Condition of the hardware
Rekeying assumes the lock is in serviceable shape. If a cylinder is damaged, badly worn, sticking, or has broken internal components, rekeying may not solve the problem. In that case, repair or replacement may be the better move, which changes the total cost.
Time of day and urgency
A scheduled daytime appointment usually costs less than an after-hours emergency visit. If you need immediate service on a weekend, at night, or during a lockout, expect a higher total because the dispatch itself costs more.
Location and mobile service
With a mobile locksmith, part of the price covers coming to your home, business, or vehicle location. That convenience is often worth it, especially when you cannot easily remove locks and take them to a shop. In a spread-out metro area, service area and travel can affect the quote.
Rekeying vs. replacing locks
If cost is your main concern, rekeying usually wins. It is often the right move when the lock works fine and you just want to block old keys. That is why it is common after a move, breakup, lost key, employee turnover, or tenant change.
Replacement makes more sense when the hardware is failing, outdated, mismatched, or no longer gives you the level of security you want. If you are upgrading from a basic lock to a stronger deadbolt, moving to keyless entry, or switching to a commercial-grade setup, replacement is a better investment.
There is also a middle ground. Sometimes a customer calls asking for rekeying, but one or two problem locks need replacement while the rest can be rekeyed. That mixed approach can control cost without leaving weak hardware in place.
When rekeying is the smart move
Rekeying is usually worth it when you are dealing with access control rather than hardware failure. If you bought a home and do not know how many copies of the key are out there, rekeying is a practical first step. The same goes for rental turnovers, office staffing changes, or situations where a contractor, former roommate, cleaner, or vendor may still have access.
It is also a good option when you want convenience. Having one working key for several doors can make daily use easier without paying for full replacement. For landlords and property managers, that can simplify turnover work and key management.
When the lowest price is not the best value
Some customers shop purely on the cheapest number they hear over the phone. That is understandable, but lock work is not always apples to apples. A very low quote may not include the service call, additional keys, after-hours charges, or the possibility that the lock cannot be rekeyed cleanly due to wear or damage.
A better question is what the quote includes. Ask whether the price covers the trip, the labor, new keys, and each cylinder. Ask whether the locksmith can key multiple locks alike. Ask what happens if the lock is not rekeyable once it is opened. Clear answers upfront usually lead to fewer surprises on site.
Commercial rekeying cost can look different
For businesses, the answer to how much does lock rekeying cost is often more complicated than it is for a house. Offices, storefronts, warehouses, and mixed-access properties may have lever locks, mortise cylinders, panic hardware, restricted key systems, or master key setups. Those jobs take more planning because access has to be controlled without disrupting operations.
A small office with two entry doors may be simple. A retail space with back-room access, employee keys, and a need for tiered permissions is not. In commercial work, the cost may reflect not just labor but the structure of the key system itself.
If your business wants better key control, rekeying can still be cost-effective. It may be much cheaper than replacing all the hardware, especially if the existing locks are commercial grade and worth keeping.
How to keep your rekeying cost reasonable
The easiest way to control cost is to group the work together. If several locks need attention, schedule them in one visit instead of making separate calls. It also helps to know exactly which doors and cylinders you want serviced before the locksmith arrives.
If your locks are older or sticking, mention that when you call. The same goes for smart locks, antique hardware, gate locks, or commercial doors. Accurate details help the locksmith bring the right parts and give you a more realistic quote.
And if you are deciding between rekeying and replacement, say that too. A good locksmith should be able to explain the trade-off clearly instead of pushing the most expensive option. For many customers, the right answer is practical, not flashy.
So, what should you expect to pay?
For most standard residential jobs, expect lock rekeying to be a lower-cost security update compared with replacing hardware. A basic single-lock rekey may be fairly modest, while a whole-home visit with several cylinders and new matching keys can land in the low hundreds. Commercial and specialty locks can run higher, especially when master keying or unusual hardware is involved.
If you are in the Denver metro area and want a clear answer based on your actual doors and lock types, the fastest route is to get a quote from a mobile locksmith that handles the work on site, like Broadway Lock & Key. A quick phone conversation can usually narrow the price range fast.
The main thing to remember is this: if your locks still work well, rekeying is often the cleanest way to restore control over who has access without paying for hardware you do not need. When security is the issue, that is money well spent.
