How long does lock replacement take?
Many standard residential replacements take about 30 to 60 minutes per door, depending on door prep, adjustments, and keying needs.
Service Guide
Lock Replacement
Lock replacement means removing existing lock hardware and installing new hardware so a different key controls the door. Homeowners consider it for security upgrades, after a move, when keys are lost, or when a lock is worn or damaged.
Typical rangeUS: $80 - $500
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What homeowners should know
Not every situation needs new hardware. Rekeying changes the internal pins so an old key no longer works while keeping the existing lock body. Replacing swaps out the hardware entirely, which may be preferred for damaged, outdated, or low-grade locks, or when upgrading to smart or higher-security options.
Costs vary by lock type and grade, number of locks, whether it is a straight swap or a fresh installation, keying (single key vs keyed differently), brand, and service timing. Smart and high-security locks typically cost more than standard cylindrical locks. After-hours or emergency calls can add trip or service fees.
Before booking, ask whether rekeying is a safe option, what lock grade or brand is recommended, how the lock will be keyed across multiple doors, warranty details, any door or strike adjustments needed, and total pricing including hardware, labor, service fees, and disposal of old hardware.
When this service is needed
You moved in, had a tenant change, or lost/unknown copies of keys
The lock sticks, is hard to turn, or the cylinder/handle feels loose
Visible wear, rust, or a damaged/broken key in the lock
You want to upgrade security (higher-grade deadbolt or smart lock)
Repair vs replacement
If the lock body is in good shape, rekeying can secure the door without changing hardware. Minor issues like a sticking key, loose screws, or a misaligned strike plate can often be repaired or adjusted. A locksmith may clean and lubricate the cylinder or realign hardware before suggesting replacement.
Choose full replacement when the lock is cracked, heavily worn, corroded, repeatedly jams, has outdated security features, or when you want a higher-grade deadbolt or a smart/electronic lock. If you do not have the working key, some locks may still be rekeyed, but replacement can sometimes be the more practical path depending on the lock and labor.
Common problems to compare
Key is hard to turn or requires extra force to lock/unlock
Misaligned latch or strike plate causing poor latching
Loose handles, deadbolt, or mounting screws
Broken key, worn cylinder, or frequent jamming
Rust or corrosion inside the cylinder or on exterior parts
Questions homeowners often ask
Is it better to rekey or replace after a move?
Rekeying is often sufficient if the existing hardware is in good condition. If locks are worn, low-grade, mismatched, or you want a smart lock or higher security, replacing may be the better choice.