About this service

Sometimes rekeying is not enough. If your lock is worn, difficult to operate, damaged from a break-in attempt, or was a builder-grade lock that was never adequate, replacement is the right call. We carry a range of residential locks at different price points and install them properly so the door operates smoothly and the deadbolt engages fully. We also dispose of the old hardware.

What you get

Better security than worn or builder-grade hardware
Proper installation with door alignment check
Range of hardware options to fit your budget
Old hardware removed and disposed of
Immediate improvement in security and ease of use

Related Services

Residential Locksmith

Locked out of your home, need a lock rekeyed, or want a smart lock installed? Our residential locksmiths handle lockouts, rekeying, lock replacement and repair, deadbolts, smart locks, and gate locks.

Lock Rekeying

Change who can open your lock without replacing the hardware. Rekeying is fast, affordable, and the smart move when you move or lose a key.

Lock Repair

Sticky, loose, or damaged lock? We diagnose and repair residential locks before they become a real problem.

Common Causes of Lock Replacement

Builder-grade hardware that was never adequate

Many new homes ship with the cheapest lock that meets code, which wears out or fails to secure the door properly within a few years.

Damage from a break-in attempt

A lock that's been picked, pried, or forced often has bent or weakened internal parts even if it still technically operates.

Worn cylinder after years of use

Repeated key insertion and turning wears down internal pins and springs, eventually making the lock unreliable.

Mismatched or outdated hardware after a renovation

A new door or frame installed during a remodel sometimes leaves the old lock a poor fit for the updated opening.

Wanting a security upgrade

Homeowners often replace a basic knob-and-deadbolt combo with a higher security grade lock after a neighborhood incident or insurance recommendation.

A lock that no longer matches the rest of the home's hardware

Replacing a single mismatched lock after other doors were upgraded is a common request.

Insurance company requiring an upgraded lock grade

Some homeowners insurance policies specify a minimum lock grade for coverage, prompting a replacement of older or lower-grade hardware.

A door replacement or exterior remodel

Installing a new exterior door as part of a renovation often means the old lock doesn't fit the updated door prep and needs to be swapped.

Wanting matching hardware across all exterior doors

Homeowners sometimes replace a mismatched lock so every exterior door has the same brand and finish.

The Risks of DIY Lock Replacement

Incorrect boring or backset measurement

A new lock that doesn't match the door's existing bore diameter or backset can require re-drilling the door, which is difficult to undo.

Deadbolt not engaging the strike plate fully

A deadbolt that only partially extends into the frame provides far less security than it appears to, and is a common DIY installation mistake.

Stripped screws or a damaged door face

Over-tightening or misaligned screws during installation can strip the wood or leave visible damage on a door face.

Buying the wrong hardware for the door thickness

Standard residential doors vary in thickness, and the wrong lock spec can leave gaps or an unstable installation.

No professional disposal of old hardware

Removed locks and hardware often end up sitting around rather than being properly disposed of.

No comparison of hardware options before buying

Without walking through the range of available grades, it's easy to either overspend or under-secure the door.

Reusing worn strike plate screws in a new lock

Installing new hardware but leaving the original stripped or loose screws in place can undermine the security of an otherwise good lock.

Overlooking latch-to-strike alignment on a newly hung door

A lock that operates fine on a workbench can still bind or fail to latch once installed on a door that isn't perfectly square.

Buying based on price alone

Choosing the cheapest available lock without comparing security grade can mean paying for an installation twice within a few years.

What Affects the Cost

Lock brand and security grade
Number of doors being upgraded
Whether the door needs re-boring or alignment work
Smart lock vs. standard mechanical hardware

Palmetto State Locksmith vs. DIY vs. Dealership

Comparison of Palmetto State Locksmith, DIY, and dealership/alternative options for Lock Replacement
Palmetto State Locksmith	DIY	Dealership / Alternative
Professional installation with alignment checked	Big-box hardware kits are affordable but assume a standard, undamaged door	Big-box stores sell hardware but don't install or verify alignment
Old hardware removed and disposed of	You're responsible for disposing of the old lock yourself	Not offered as a service
Range of hardware options explained without upsell pressure	Limited to what's in stock at the store	Sales-floor selection, no installation guidance

How it works

1
Talk through your options
We discuss what you need: basic replacement, upgraded security, or smart lock. No upsell pressure.
2
Hardware selection
We bring common options or can source a specific product. You see the full estimate before anything is ordered.
3
Professional installation
Old lock removed, new lock installed properly, door alignment checked, and deadbolt tested.
4
Key distribution
You get new keys and we confirm the lock operates smoothly before we go.