What Does It Actually Cost to Rekey a House?
So you just moved into a new home, or maybe you had a key go missing, or perhaps a tenant just moved out and you are realizing you have no idea how many copies of your house key are floating around out there. Whatever brought you here, you are asking the right question. Rekeying a house is one of those home security steps that does not get nearly enough attention, and honestly, it is one of the most practical things a homeowner can do. The cost is manageable, the process is straightforward, and the peace of mind it delivers is genuinely worth it. Let us break down what rekeying actually involves, what it costs, and what you need to know before you call a locksmith.
What Does Rekeying a House Mean?
Rekeying is not the same as replacing your locks. That distinction matters more than most people realize. When a locksmith rekeys a lock, they go inside the lock cylinder and swap out the internal pins so that the old key no longer works. The lock hardware stays exactly where it is. A new key is then cut to match the new pin configuration. The result is a fully functional lock that responds only to the new key. The physical lock itself, the deadbolt, the knob, the latch, all of it stays in place. This is why rekeying is so much more affordable than a full lock replacement. You are essentially changing the combination without changing the box.
How Much Does It Cost to Rekey a House?
Here is where things get a little variable, but the numbers are still pretty accessible. On average, rekeying a single lock runs between $15 and $40 for the service itself. However, locksmiths typically charge a service call fee just to show up, which tends to range from $50 to $100. When you factor in a full house with multiple entry points, the total cost to rekey a house usually lands somewhere between $100 and $300. That price can shift depending on your location, the number of locks, the brand or complexity of the lock hardware, and whether you are calling someone out on a weekend or after hours. Some locksmiths offer flat-rate rekeying packages for new homeowners, which can bring the cost down a bit if you ask about it.
Rekeying vs. Replacing: Which One Makes More Sense?
This is genuinely one of those questions where the answer depends on your situation, but rekeying wins for most standard scenarios. If your locks are relatively new and in good working condition, rekeying is the smarter financial move. A full lock replacement can cost anywhere from $80 to $300 per lock once you factor in both parts and labor. Rekeying the same lock costs a fraction of that. However, if your locks are old, damaged, or low-quality, replacement makes more sense. Upgrading to a higher-grade deadbolt while you are at it is not a bad idea. Some homeowners choose to rekey most of their locks and replace one or two that were already due for an upgrade. That hybrid approach is actually pretty common and often the most cost-effective path.
When Should You Rekey Your Home?
There are several situations where rekeying should move to the top of your to-do list. It is not just a move-in checklist item, though that is one of the most important moments to do it. Here are some common scenarios where rekeying makes clear sense:
- You recently purchased a home and do not know who has existing copies of the key
- A roommate, tenant, or partner has moved out and a key was not returned
- You lost a key or had one stolen
- A contractor, house sitter, or repair technician had temporary access
- You experienced a break-in or an attempted entry
- You want all exterior doors to work with a single master key
Each of these situations creates a legitimate security gap. Rekeying closes that gap quickly and affordably. It is not an overreaction; it is just responsible homeownership.
Can You Rekey Locks Yourself?
Technically, yes. DIY rekeying kits are available for purchase and they work with certain lock brands. Kwikset, for example, makes a SmartKey system designed specifically for DIY rekeying without any special tools. Other brands like Schlage require a rekeying kit that includes a follower tool, new pins, and a key gauge. The kits themselves typically cost between $15 and $25. If you are reasonably handy and your locks are compatible, this is a legitimate option. That said, there is a real risk of damaging the lock cylinder if you rush it or skip a step, and a damaged lock is not exactly a step up from an accessible one. For most homeowners, hiring a locksmith is the better call simply because the margin for error is low and the cost difference is not dramatic.
Key Factors That Affect Rekeying Costs
A few variables can push the total cost of rekeying up or down, and knowing them in advance helps you avoid surprises when the locksmith hands you the invoice.
- Number of locks: Every lock adds to the per-lock service charge, though many locksmiths offer reduced rates when doing multiple locks in one visit
- Lock brand and complexity: High-security or smart lock systems may cost more to rekey due to specialized components
- Geographic location: Urban markets typically carry higher labor rates than suburban or rural areas
- Time of service: Emergency or after-hours calls always carry premium pricing
- Service call fee: This flat fee for travel is charged regardless of how many locks you have done, so batching all your locks into one visit is always smarter
Does a Home Warranty Cover Rekeying?
This is a fair question and the honest answer is that standard home warranty plans do not typically cover rekeying as a standalone service. Home warranties are structured to cover the mechanical failure of home systems and appliances, things like your HVAC, plumbing, electrical, or kitchen appliances. A lock that still functions but simply needs new pin configurations does not fall under that umbrella. However, if a lock fails mechanically and needs repair or replacement, that is a different conversation depending on your coverage terms. It is worth reading your home warranty contract carefully or calling your provider to understand what qualifies under their lock or security system provisions, if any exist.
Smart Locks and Rekeying: What Changes?
Smart locks have added an interesting layer to this conversation. Many smart locks can be reset digitally, which functions similarly to rekeying without any physical key involved. You simply update the access codes or delete old user credentials from the app. Some smart locks still use a physical key cylinder as a backup, and that component can be rekeyed the traditional way. Others are fully keyless. If you are moving into a home with existing smart locks, changing the access codes and resetting the administrator account is the equivalent of rekeying for that system. It is a step that is easy to forget but absolutely essential to do right away.
Why Armadillo Belongs in Your Home Protection Plan
Rekeying your home is one piece of a much larger picture when it comes to protecting what you own. The locks keep people out, but a home warranty helps protect everything inside from the costly, unpredictable breakdowns that happen to even the most well-maintained homes. Armadillo offers straightforward, honest home warranty coverage built for real homeowners who want protection without the runaround. If you are in the process of securing your home and thinking about what else could go wrong, explore Armadillo’s home warranty coverage options for new and existing homeowners to see what kind of protection fits your situation. The coverage is transparent, the claims process is designed to be simple, and there are no surprises buried in the fine print. Whether your HVAC decides to quit in July or your water heater throws in the towel on a cold morning, having a plan in place matters. Take two minutes and get a personalized home warranty quote tailored to your home’s systems and appliances and find out exactly what it would cost to have that kind of backup in your corner.
Frequently Asked Questions About Rekeying a House
Here are answers to the questions homeowners ask most often when researching rekeying costs and options.
How much does it cost to rekey a house on average?
The average cost to rekey a house ranges from $100 to $300 total, depending on the number of locks, the locksmith’s service call fee, and your location. Individual locks typically cost $15 to $40 each to rekey, not including the initial service fee.
Is rekeying a lock the same as changing the lock?
No. Rekeying changes the internal pins inside the existing lock so the old key no longer works. The physical lock hardware stays in place. Changing a lock means removing the entire lock and installing new hardware.
How long does it take to rekey a house?
A professional locksmith can typically rekey an average-sized home with three to five exterior locks in under an hour. More locks or complex hardware may take slightly longer.
Can a locksmith rekey any brand of lock?
Most standard residential locks from major brands can be rekeyed by a qualified locksmith. Some high-security or proprietary lock systems may require a specialist or brand-specific tools.
Should I rekey my house when I move in?
Yes, absolutely. Rekeying when you move into a new home is one of the most recommended security steps because you have no way of knowing how many copies of the original key exist or who has them.
Can I rekey my locks myself?
Yes, if your locks are compatible with DIY rekeying kits available at hardware stores. Kwikset’s SmartKey system is one of the most accessible DIY options. However, improper rekeying can damage the lock cylinder, so hiring a locksmith is generally the safer choice.
Does a home warranty cover the cost to rekey a house?
Standard home warranties do not typically cover rekeying, since it is not related to mechanical failure. Home warranties cover system and appliance breakdowns. Check your specific policy for any lock or security-related provisions.
How many keys will I receive after rekeying?
Most locksmiths provide two to four copies of the new key by default. You can usually request additional copies for a small fee at the time of service.
What is the difference between a rekey and a master key system?
Rekeying changes one lock to work with a new key. A master key system is set up so that one key opens multiple different locks, each of which still has its own individual key. Locksmiths can configure both during a single service visit.
How often should I rekey my house?
There is no fixed schedule, but rekeying is recommended any time key control has been compromised, such as after a move, a lost key, the end of a tenancy, or any period where a contractor or service provider had unsupervised access to your home.
