A new lock typically costs $15-$300 for hardware, or about $80-$450 with professional installation, depending on lock type, door preparation, and labor rates. A basic replacement usually costs less than a smart lock or a job requiring a new hole, different backset, or door repair.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Lock hardware | $15 | $90 | $300 | Basic knob or deadbolt through smart lock |
| Installed replacement | $80 | $190 | $450 | One lock, standard door and access |
| Locksmith labor | $50 | $100 | $175 | Typical service call or first labor hour |
| Rekeying an existing lock | $20 | $35 | $60 | Per cylinder, excluding some service-call fees |
Typical price for replacing one door lock
For a standard exterior door with an existing compatible opening, homeowners commonly pay $100-$250 for a new deadbolt installed. A basic doorknob lock replacement is often $80-$200 total. A keypad or connected smart lock generally raises the installed price to $180-$450, especially when setup or door adjustments are needed.
A typical straightforward replacement averages about $190, including midrange hardware and labor. These estimates assume one lock, normal access, and no door or frame repair. Assumptions: U.S. midmarket labor rates, standard residential door, no emergency service.
Hardware, labor, and door preparation on the quote
Lock estimates may combine the product price with a service-call fee, installation labor, and any work needed to make the lock fit. Ask whether the quote covers the full lockset or only the deadbolt, and whether old hardware removal is included.
| Quote item | Low | Average | High | Common scope |
|---|---|---|---|---|
| Basic knob or deadbolt | $15 | $55 | $120 | Standard residential hardware |
| Smart lock hardware | $80 | $180 | $300 | Keypad or app-enabled model |
| Installation labor | $50 | $100 | $175 | One lock, existing compatible holes |
| Door adjustment | $20 | $60 | $150 | Minor alignment or strike-plate work |
| Service call | $30 | $75 | $125 | May be credited toward the job |
Labor often represents $50-$175 of a single-lock installation. A useful labor estimate is ; many locksmiths charge a service-call minimum rather than billing only by the minute.
Deadbolt, knob, or smart lock price differences
Hardware choice is one of the clearest differences between quotes. Basic keyed knobs commonly cost $15-$60, while a standard single-cylinder deadbolt runs about $25-$100. Higher-security deadbolts with reinforced components may cost $75-$200. Smart locks range from roughly $80 for a basic keypad model to $300 or more for connected features and premium finishes.
For an exterior entry, a deadbolt is often priced separately from the handle or knob. Replacing both pieces can add $25-$150 in hardware compared with replacing one lock. If the existing lock works and only the keys need changing, rekeying may cost less than buying a new lock.
Door thickness, backset, and smart features that change price
Compatibility can add labor or require different hardware. Many residential locks fit doors about 1⅜-1¾ inches thick, but thicker or unusually configured doors may need a compatible kit or specialty product. A 2⅜-inch or 2¾-inch backset is common; changing the opening to fit a different size can add about $40-$150.
Smart features can add $50-$200 or more to hardware costs. Wi-Fi connectivity, fingerprint access, automatic locking, and integration with a home system affect the product price. A misaligned door can also cause a keypad lock to bind or drain batteries, so correcting a strike plate or latch may add $20-$150.
How long a locksmith needs for one lock
A compatible replacement generally takes 20-45 minutes per lock. Installing a smart lock may take 30-60 minutes when the door is prepared, with additional time for app setup. Drilling a new opening, correcting a sagging door, or replacing a damaged frame can extend the visit to 1-3 hours.
Ask whether the quoted labor includes setup and testing, not just mounting the hardware. Locksmith rates commonly fall around $50-$125 per hour, but minimum charges can make a short visit cost more than the hourly rate suggests. Assumptions: One technician, ordinary residential access, daytime appointment.
Service-call fees, old locks, and urgent visits
Removing a functioning lock during a planned appointment is often included in installation. A jammed or broken lock may require drilling or extra troubleshooting, adding roughly $25-$100. Disposal is usually minor or included, while replacing a damaged strike plate or latch can add $10-$60 for parts and labor.
After-hours, weekend, and emergency calls can raise the bill by $50-$200 or more. Some locksmiths add a dispatch fee of $30-$125, and quotes may exclude hardware. Before authorizing work, confirm the total price, service-call charge, lock model, and any emergency surcharge.
Urban and rural locksmith rates across the U.S.
Prices vary with local wages, travel distance, and contractor availability. Large metropolitan areas and high-cost coastal markets may run about 10%-30% above a typical midmarket quote. Rural areas can have lower hourly rates but higher travel charges, particularly when the locksmith must drive a long distance for a single lock.
Compare the same lock model and scope rather than comparing totals alone. A city quote might include a higher service fee but lower travel costs; a rural quote may show a modest labor rate plus a separate mileage charge. Emergency demand can outweigh regional averages in either location.
Ways to lower the new lock installation bill
Keep the existing lock opening and replace it with a compatible model when the door and frame are in good shape. If the hardware functions but keys are lost or need changing, ask for a rekey price before choosing replacement. For multiple locks at one address, request a combined quote and ask whether they can be keyed alike.
Buying the correct lock size before the appointment can prevent extra fitting charges. Share door thickness, backset, lock type, and photos of the existing hardware when requesting estimates. Compare at least two itemized quotes, check whether the stated price includes the service call, and avoid paying for smart features that are not needed.