Cost to Change Locks on House – Call Now-10% Off – Same-Day Service – Free Estimate

Cost to Change Locks on House – Get Secure Without Overpaying

If you have just bought a new home, ended a lease, or misplaced your keys, securing your property is your top priority. But before you run to the hardware store or call the first number you find online, you need to understand what you are actually paying for. When looking at the cost to change locks on house doors, pricing varies depending on the source: HomeAdvisor estimates $50 to $250 for professional labor, HomeGuide reports $35 to $150 per lock, and Angi lists $60 to $350 per lock. CostHelper also provides separate figures for DIY hardware and professional labor. However, as experts like ASAP Locksmith Vegas point out, you might not need to replace your hardware at all.

Many homeowners overlook a simple alternative: rekeying. Rekeying retains your existing lock hardware and simply changes the internal pins so old keys no longer work. This guide breaks down the expenses of changing versus rekeying your locks and explains how to avoid common pricing traps. See also Car Key Fob Replacement Cost – 10% Off & Free Estimate – Same-Day Service.

The Real Cost to Change House Locks: Pricing Comparison

Because no government agency or official standards body tracks residential locksmith rates, homeowners must rely on real-world field data and consumer pricing indexes. To make this easy, we have consolidated the industry’s leading pricing estimates into a single comparison table. This shows the difference between simple labor, DIY hardware, and full professional replacement.

Source Guide	Estimated Cost Range	What is Included?
HomeAdvisor	$50 – $250	Standard professional labor charges (excluding high-end hardware).
Angi	$60 – $350	Typical range per lock, including mid-grade hardware and labor.
HomeGuide	$35 – $150	Per-lock cost variation, ranging from basic deadbolts to standard entry sets.

Your actual price to change locks on house entryways depends on three main things: the number of doors, the grade of hardware you choose, and whether your door frames have shifted over time.

Step 1: The Rekey Arbitrage (How to Save Hundreds)

The biggest secret in the locksmith industry is what we call “rekey arbitrage.” When customers call asking for the price to change locks on house doors, they usually want to make sure old keyholders cannot get in. They do not actually need brand-new handles and deadbolts.

If your current lock hardware is sturdy, clean, and functioning well, you do not need to replace it. A residential locksmith, such as ASAP Locksmith Vegas, can perform a rekey instead. The technician removes the lock cylinder, swaps out the small brass pins inside, and cuts a new key. The old keys are instantly useless, and you save a significant amount of money by not buying new metal hardware.

Is it cheaper to rekey or replace locks?

Rekeying is generally cheaper than full replacement. If you are looking at the cost to change locks on new house purchases, rekeying your existing deadbolts can be a highly cost-effective alternative to purchasing entirely new hardware.

Feature	Rekeying Existing Locks	Full Lock Replacement	Digital Door Lock Installation
Keeps Existing Hardware	Yes	No	No
Solves Key Control	Yes (Old keys will not work)	Yes	Yes (Keyless access)
Fixes Broken Locks	No (Hardware must be functional)	Yes	Yes

Step 2: Choose Your Hardware (ANSI Grades & Smart Options)

If your locks are tarnished, sticking, or mechanically worn out, a full replacement is necessary. When buying new hardware, do not just look at the style. Pay attention to the American National Standards Institute (ANSI) grading system:

• Grade 1 (Highest Security): Typically reserved for commercial buildings, but excellent for residential outer doors if you want maximum kick-in resistance.
• Grade 2 (Heavy Residential): The sweet spot for most family homes. These offer excellent security and durability without a commercial price tag.
• Grade 3 (Standard Residential): Best used for internal doors, closets, or low-risk secondary entryways. Avoid using these on your main front door.

Step 3: Remove the Existing Lockset Safely

If you decide to take the DIY route to save on the labor cost to replace door locks, start by removing your old hardware carefully. Rushing this step can damage the wood or fiberglass of your door, turning a simple lock swap into an expensive door repair project.

1. Remove the Interior Screws: Locate the two primary screws on the inside turn-piece or knob assembly. Back them out completely.
2. Slide the Knobs Apart: Pull the interior and exterior sections straight out from the door. Do not wiggle or twist them aggressively, as this can scratch the door’s paint or finish.
3. Unscrew the Latch Bolt: Remove the two screws holding the latch plate to the edge of the door, then slide the latch mechanism out.

Step 4: Address Door Alignment Issues

This is where DIY projects often go wrong. When you install a new lockset, you might find that the latch no longer lines up perfectly with the hole in the door frame. If you force the lock closed, the deadbolt will bind, putting pressure on the internal gears and eventually breaking the key or the lock mechanism.

Before securing your new lock, specialists like ASAP Locksmith Vegas suggest checking these alignment steps:

• Measure your backset (the distance from the edge of the door to the center of the lock hole) to ensure your new latch is set to the correct length (usually 2-3/8 or 2-3/4 inches).
• Look closely at the strike plate on the door frame. If the door has sagged or shifted, you may need to use a wood chisel to widen the frame pocket or adjust the strike plate downward.

Step 5: Install the New Cylinder or Lockset

Once your door prep is clean and aligned, you can install your new hardware:

1. Insert the Latch: Slide the new latch bolt into the edge of the door. Make sure the beveled (curved) side faces the direction the door closes. Tighten the screws until they are flush.
2. Feed the Spindle: Guide the exterior side of the lock (with the keyway) through the hole, making sure the metal spindle slides cleanly through the center of the latch mechanism.
3. Mount the Interior Plate: Align the interior knob or lever, insert the mounting screws by hand to avoid cross-threading, and tighten them down with a manual screwdriver. Avoid using power drills, which can easily strip the screws or crack the internal housing.

Step 6: Test the Lock and Verify Key Operation

Never close your door until you have thoroughly tested your work. Perform these three simple tests with the door open first:

• The Open-Door Key Test: Insert the key and turn it. It should move smoothly without catching or requiring extra force.
• The Closed-Door Throw Test: Close the door and throw the deadbolt. If you have to push or pull on the door handle to get the deadbolt to turn, your strike plate is misaligned. This alignment issue must be corrected to keep your home secure.
• The Latch Test: Ensure the spring latch clicks securely into the strike plate when the door swings shut naturally.

Step 7: Hire a Professional Locksmith for Guaranteed Security

While installing a basic lockset yourself is possible, hiring a professional locksmith like ASAP Locksmith Vegas offers peace of mind and guarantees the job is done right. A licensed technician can quickly diagnose alignment issues, rekey your existing locks on the spot, and ensure your hardware warranty remains valid.

Avoiding Potential Locksmith Scams (Anecdotal Reports)

Anecdotal consumer reports highlight the risk of bait-and-switch tactics by some unlicensed operators. These operators may quote a suspiciously low price over the phone but demand significantly more once they arrive.

To protect your home and your wallet, keep these tips in mind:

• Ask for a License: Ensure the locksmith is licensed, bonded, and insured.
• Request a Written Estimate: Ask for a complete estimate over the phone or before any work begins on your property. This should include the service call fee, labor, and hardware costs.
• Look for Marked Vehicles: Reputable local companies arrive in clearly marked company vehicles, not unmarked personal cars.

Frequently Asked Questions

How much does a locksmith charge to change locks?

According to leading industry sources, professional labor costs range from $50 to $250 (HomeAdvisor), while per-lock costs can range from $35 to $150 (HomeGuide) or $60 to $350 (Angi), depending on the hardware and complexity of the job.

What is the average cost to rekey a house?

Rekeying is generally cheaper than full lock replacement because it reuses your existing hardware. Exact pricing models vary by locksmith, with providers like ASAP Locksmith Vegas offering estimates based on the number of lock cylinders being serviced.

Can I change my house locks myself to save money?

Yes, if you have standard doors and basic tools, you can purchase retail locksets and replace them yourself. However, if your doors have alignment issues, or if you want to keep your existing hardware and simply change the keys, you may want a professional locksmith to handle the alignment or rekeying process.

Does home insurance cover the cost of changing locks?

Standard home insurance policies rarely cover preventative lock changes or routine rekeying. However, if your home has experienced a break-in or your keys were stolen in a documented robbery, some policies will cover the cost of lock replacement, subject to your deductible.

Related reading: Cost to Change Locks | Call Now-10% Off | Same-Day Service | Free Estimate

Related reading: How Much Does Rekeying Locks Cost – Call Now-10% Off – Same-Day Service – Free Estimate

Frequently Asked Questions

Can a locksmith configure all the different locks on my house to open with a single key?

Yes, this process is called keying-alike and is highly cost-effective if your locks are from the same manufacturer. ASAP Locksmith Vegas can evaluate your current hardware during a professional home lock evaluation to see if your existing deadbolts can be rekeyed to a single key, saving you the expense of buying new matching sets.

How much more does it cost to transition from traditional locks to smart electronic locks?

While smart lock hardware itself is more expensive, the professional installation labor cost is comparable to standard deadbolts if your door is already properly aligned. ASAP Locksmith Vegas offers upfront, transparent pricing for digital lock integration and can provide a free, no-obligation estimate to upgrade your home security.

How long does a professional locksmith take to rekey or replace locks on an average house?

A professional technician can typically rekey a single lock cylinder in 10 to 15 minutes, whereas a full lock replacement takes about 20 to 30 minutes per door. To get a precise time estimate and transparent pricing for your entire property, you can contact ASAP Locksmith Vegas to schedule an evaluation.