Yes, it is highly recommended to change or rekey the locks when you buy a house.
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Changing a lock is a common task. People do it when they move to a new home, lose keys, or want better security. But the cost is not fixed. It depends on the lock type, job complexity, and where you live. In the US, a single lock change usually costs between $100 and $350. This includes labor and basic hardware. Prices go higher for smart locks, high-security models, or emergency jobs. Lower prices apply to simple knob locks in normal hours. This guide gives clear answers. It covers average costs for house doors, car locks, and commercial properties. You will also find key factors that change the price. Plus tips to get the best deal. Read on to see what you can expect for your need.
Most homeowners change locks when they move into a new home or want better security. The cost for house locks in the US ranges from $40 to $500 per lock, depending on the type and installation.
Here is a quick breakdown of common house lock types:
Lock Type
Basic Knob/Lever
Standard Deadbolt
High-Security Deadbolt
Smart/Electronic Lock
Typical Cost per Lock
$40 – $200
$60 – $300
$150 – $400
$250 – $500+
Short Note
Simple doors, quick & easy install
Main doors, good everyday security
Drill-resistant, restricted keys
Keyless, app control, battery needed
Prices can vary depending on your city and the locksmith you choose. A service call fee ($50–$150) and labor ($75–$150 per hour) are usually added on top of the hardware cost. For multiple locks, ask about bundle discounts. Many locksmiths reduce the price when you do several at once. Rekeying remains a cheaper option ($50–$150 per lock) for house locks if the current hardware is still good and you only need new keys.
Commercial buildings such as offices, shops, warehouses, restaurants, and small clinics require stronger locks for security and safety. The cost for changing locks in commercial buildings ranges from $100 to $800+ per lock in the US.
This is higher than residential prices because the hardware is heavy-duty, installation is more complex, and many locations use master key systems or electronic access control.
Service call fees ($50–$150) and labor ($75–$150 per hour) are added on top of the lock cost. For small offices or shops (2–4 doors), total cost often falls between $400 and $2,000.
Large buildings or projects with advanced systems can easily exceed $3,000.
Rekeying is a cheaper option ($50–$200 per lock) if the lock is not damaged and only keys need changing.
Lock Type
Grade 1 Cylindrical Deadbolt
Mortise Lock
Panic Bar / Exit Device
Electromagnetic (Mag) Lock
Keypad / Electronic Access Control
Master Key Cylinder (add-on)
Typical Cost per Lock
$100 – $300
$200 – $500
$300 – $800+
$250 – $600
$300 – $800+
$150 – $400 extra
Short Note
Standard office/shop doors, heavy-duty
Door frame mein fit, very strong & secure
Required on fire exits, push-to-open
Door stays locked until powered release
Code, card or fob entry, no physical key
One key opens multiple doors
Prices in commercial buildings can be higher in big cities or for complex systems. Always get multiple quotes to compare. Rekeying can save money if the locks are still in good shape.
Vehicle lock changes are common when keys are lost, stolen, or the lock is damaged. The cost for changing vehicle locks in the US ranges from $75 to $350 for normal cars and trucks.
Prices go higher for luxury vehicles, motorcycles with transponder systems, or push-to-start setups. Door lock replacement is usually cheaper, while ignition or smart key changes cost more.
A service call fee ($50–$150) is added in most cases, and key programming can add extra charges. Rekeying is possible in some older vehicles ($50–$180), but most modern ones need full replacement.
Lock Type / Part
Door Lock Cylinder
Ignition Lock Cylinder
Transponder Chip Key Replacement
Key Fob / Remote Lock System
Luxury / Smart Vehicle System
Typical Cost
$75 – $250
$150 – $400
$150 – $450
$200 – $500
$300 – $800+
Short Note
Standard car door, panel removal needed
Steering column work, higher labor
Key programming required
Modern cars, battery + programming
Push-to-start, advanced electronics
Prices for vehicle locks vary by city and vehicle type. Emergency roadside service usually adds $50–$300 extra. Rekeying is rare in modern vehicles, so replacement is most common.
Lock change prices are not the same for every job. They depend on several factors. Here are the main ones:
These factors combine to decide the final price. Always ask the locksmith about them before starting work to avoid surprises.
Prices for hardware + installation (US average). Service call fee ($50–$150) and labor ($75–$150/hour) are not included. They are added separately to the final cost. Emergency service adds $50–$300 extra in all cities.
City
Houston
Dallas
Austin
Los Angeles
House Locks (per lock)
$40 – $500
$120 – $400
$55 – $450
$100 – $650
Commercial Buildings (per lock)
$100 – $800
$110 – $850
$95 – $750
$150 – $1,000+
Vehicle Locks (per lock)
$75 – $450
$80 – $480
$70 – $400
$100 – $600
Big cities like Los Angeles have higher labor rates, so prices are on the higher end. Small towns are usually 10–20% lower than these averages.
Always get a local quote for your exact need. Prices change based on your city and the job.
Yes, it is highly recommended to change or rekey the locks when you buy a house.
It usually takes a professional locksmith about 15–30 minutes per lock, depending on the type of lock and its complexity. Some advanced or smart locks may take a bit longer to install, while standard locks are quicker. This ensures the lock is installed properly.
Yes, you can change your own house locks if you have basic tools and follow the instructions. However, hiring a professional locksmith helps ensure the lock is installed correctly and provides better security.
Yes, in many cases a locksmith can still change the lock even if the door is damaged. However, if the damage affects the lock area or door alignment, minor repairs may be needed before installing a new lock properly.