Rekeying vs Replacing Locks: Which is Right for You?

Many Perth homeowners and business owners are confused about rekeying versus replacing locks. The distinction is important because choosing the right option can save significant money and time.

What is rekeying? Rekeying involves changing the internal pins inside your existing lock cylinder so that old keys no longer work. A new key is cut to match the new pin configuration. The lock hardware remains the same—only the internal mechanism changes.

What is replacing? Replacing means removing the entire lock mechanism and installing a completely new lock. Everything is new: the cylinder, the internal mechanism, the keys, and often the external hardware.

The key distinction: Rekeying keeps your existing lock hardware and just changes which keys operate it. Replacing gives you an entirely new lock. Both achieve the same goal—old keys won't work—but through different methods.

Visual analogy: Think of rekeying like changing the password on your existing email account. Replacing is like deleting your account and creating an entirely new one. Both prevent unauthorized access, but one is faster and cheaper.

Rekeying is the optimal solution in these common Perth scenarios:

Moving into a new home: You don't know who has keys from previous owners. Rekeying ensures only you have access while keeping functional locks.

Lost or stolen keys: If you've lost keys or suspect they were stolen, rekeying immediately prevents unauthorized access without the expense of new locks.

Employee or tenant departure: When tenants move out or employees leave with keys, rekeying prevents them from returning without replacing perfectly good locks.

Relationship changes: After breakups or divorces, rekeying ensures former partners can't access your property.

Key tracking concerns: If too many people have copies of your keys (contractors, cleaners, pet sitters) and you're unsure who has what, rekeying creates a fresh start.

Lock quality is good: If your existing locks are quality Grade 2 or Grade 1 deadbolts in good condition, there's no reason to replace them. Rekeying is perfect.

Budget constraints: Rekeying costs 40-60% less than replacement. When budget is tight but security is essential, rekeying is the smart choice.

Quick turnaround needed: Rekeying is faster. A skilled locksmith can rekey multiple locks in under an hour, versus several hours for complete replacement.

Complete lock replacement is the better choice in these situations:

Poor quality locks: If your locks are cheap builder-grade hardware or low-security models, replacement upgrades your security significantly. Rekeying a poor lock is pointless.

Damaged or worn locks: Locks that stick, jam, or require jiggling won't improve with rekeying. Worn internal mechanisms need complete replacement.

Lock malfunction: If your lock is failing mechanically, rekeying won't fix it. Replace malfunctioning locks entirely.

Security upgrade desired: Wanting to upgrade from knob locks to deadbolts, add smart locks, or install high-security locks requires replacement.

Different key system: If you want all locks to use the same key (keyed-alike) and they're currently different brands or types, replacement might be necessary.

Style or aesthetic change: Renovating and want new finishes (brass to nickel, modern to traditional)? Replacement is required.

Lock type incompatible: Some lock types or brands are difficult or impossible to rekey. Replacement is the only option.

Damage beyond repair: Locks damaged during break-in attempts often can't be rekeyed. The internal mechanisms are too damaged.

Perth coastal corrosion: Locks in coastal Perth properties often suffer severe corrosion. If internal components are corroded, replacement is necessary for reliability.

Understanding the cost difference helps you make informed decisions:

Rekeying costs in Perth: - First lock: $60-$100 - Additional locks: $40-$70 each - 3 locks rekeyed: $140-$240 total - Emergency after-hours: Add $80-$150

Lock replacement costs in Perth: - Standard deadbolt: $100-$200 per lock (parts + labor) - Quality deadbolt: $150-$300 per lock - Smart lock: $300-$600 per lock - High-security lock: $250-$500 per lock - 3 standard locks replaced: $300-$600 total

Cost breakdown example: For a typical Perth home with 3 exterior doors: - Rekeying: $140-$240 - Replacing: $300-$900 depending on lock quality

Savings: Rekeying saves $150-$660 (50-70% less) when locks are in good condition.

When replacement is cost-effective: If your locks are cheap builder-grade (under $30 retail each), the difference between rekeying and replacing with quality locks narrows. Sometimes it's worth the extra $100-$150 to upgrade to Grade 2 deadbolts.

Master keying consideration: Creating a master key system during rekeying adds $50-$150 but provides excellent convenience for homes or businesses needing multiple access levels.

Understanding what's involved helps you plan appropriately:

Rekeying process: 1. Remove lock cylinder from door (2-5 minutes per lock) 2. Disassemble cylinder and remove old pins (3-5 minutes) 3. Install new pins matching new key (5-7 minutes) 4. Reassemble and test (2-3 minutes) 5. Reinstall in door and verify operation (2-3 minutes)

Total per lock: 15-25 minutes 3 locks rekeyed: 45-75 minutes typically

Lock replacement process: 1. Remove old lock completely (5-10 minutes) 2. Check door preparation and mortise (5 minutes) 3. Install new lock hardware (10-20 minutes) 4. Adjust and align for smooth operation (5-10 minutes) 5. Test thoroughly with all keys (3-5 minutes)

Total per lock: 30-50 minutes 3 locks replaced: 90-150 minutes typically

Rush service: Most Perth locksmiths offer same-day service for both options. Emergency service (after-hours) is available but costs 50-100% more.

DIY timeframe: Experienced DIYers can rekey simple locks but often take 2-3 times longer than professionals. Mistakes can damage locks permanently. Replacement is more DIY-friendly but still requires precision.

Our recommendation: Unless you're experienced, professional service ensures the job is done right without risking damage to locks or doors.

Both options provide security, but there are nuances to consider:

Rekeying security: - Immediately invalidates all old keys - Security level remains same as original lock - Doesn't fix any existing vulnerabilities - Effective if lock quality is already adequate - Can include security pins for pick resistance

Replacement security: - Opportunity to upgrade to higher security grades - Can add features like pick resistance, drill protection - Fix vulnerabilities in lock design or installation - Fresh hardware without wear or damage - Can implement restricted keyways (prevents unauthorized copying)

Perth break-in methods: Most Perth burglaries involve forcing doors or breaking windows, not picking locks. If your locks are Grade 2 or better, rekeying provides excellent security. The quality of the lock matters more than whether it's rekeyed or new.

High-security options: For properties requiring maximum security, consider replacement with: - Restricted keyway systems (keys can't be copied at hardware stores) - High-security cylinders with pick and drill resistance - Smart locks with access logging - Commercial-grade deadbolts

Key control: Whether rekeying or replacing, implement key control procedures. Track who has keys, use restricted keyways, and change locks/rekey when people with keys leave.

Some scenarios require specific approaches:

Master key systems: If you want different keys for different doors but one master key for all, this requires precise rekeying or replacement into a keyed-alike system. Costs more but provides excellent access control.

Smart locks: You can't "rekey" a smart lock in the traditional sense. Many offer virtual rekeying by changing access codes or deleting user profiles, which is instant and free.

High-security locks: Patented high-security locks often can't be rekeyed with standard tools. They require special equipment or factory service. Verify rekeying options before purchasing.

Restricted keyways: If your locks use restricted keyways (keys only available through authorized dealers), rekeying must be done through authorized locksmiths. This actually enhances security.

Multi-point locking systems: Common on sliding doors, these complex systems sometimes require complete replacement rather than rekeying due to their integrated design.

Rental properties: Perth landlords should rekey between every tenancy. It's cheaper than replacement and provides necessary security. Keep spare cylinders pinned identically for quick swaps.

Insurance requirements: Some Perth insurance policies require specific lock grades or types. Verify your policy before choosing rekeying over upgrading replacement.

Can you do it yourself? Here's the honest assessment:

DIY rekeying: Difficulty: Moderate to difficult Tools needed: Rekeying kit ($50-$100), plug follower, tweezers, pinning tray Risks: Losing pins, incorrect pin installation, damaging cylinder Time: 2-4 hours for first attempt Savings: $100-$200 in labor

Worth it? Only if you're mechanically inclined, have several locks to rekey, and are comfortable with precision work. One mistake can ruin the lock.

DIY replacement: Difficulty: Moderate Tools needed: Screwdriver, drill (sometimes), chisel (sometimes) Risks: Incorrect installation, poor alignment, door damage Time: 1-3 hours per lock for beginners Savings: $50-$100 per lock in labor

Worth it? More feasible than rekeying if you're handy. Follow instructions carefully and take your time. Pre-bored doors are easiest.

Professional advantages: - Done right the first time - Proper tools and expertise - Warranty on work - Fast service (same-day often available) - Can handle complications - Security advice and assessment

When to definitely hire a professional: - High-security locks - Master key systems - Multiple locks needing coordination - Damaged or problematic installations - Commercial properties - Time-sensitive situations (lost keys, security breach)

Use this decision framework to choose the right option:

Choose REKEYING if: - Your locks are Grade 2 or better quality - Locks are in good working condition - You're satisfied with current lock style - Budget is a primary concern - Quick turnaround is needed - Security level is already adequate

Choose REPLACING if: - Locks are poor quality or damaged - You want security upgrades - Lock style doesn't match your aesthetic - Malfunctioning locks need fixing - Upgrading to smart locks - Coastal corrosion has damaged locks - Adding features like pick resistance

Mixed approach: Many Perth homeowners choose a combination: - Replace front door with high-security deadbolt - Rekey back and side doors - Upgrade garage door lock - Keep interior doors as-is

This balances security, cost, and effectiveness.

Professional consultation: When uncertain, most Perth locksmiths offer free consultations. We'll assess your locks, discuss your concerns, and recommend the most cost-effective solution for your specific situation.

Emergency situations: If you've experienced a break-in or immediate security threat, call immediately. Locksmiths can assess damage and provide same-day rekeying or replacement as needed.

Both rekeying and replacing locks are valid security solutions. The right choice depends on your specific circumstances, budget, and lock condition.

Key principles: - Never sacrifice security to save money on obviously inadequate locks - Quality matters more than whether locks are rekeyed or new - Professional installation ensures optimal security and operation - Timely action after key loss or security concerns is critical

Most common Perth scenario: New homeowners with builder-installed locks should usually rekey if locks are Grade 2 or better, or replace if they're basic knob locks or low-grade deadbolts. This balances security and budget effectively.

Investment perspective: Quality locks last 10-15+ years with proper maintenance. Spending extra for replacement with better locks is worthwhile if your current locks are inadequate. If current locks are good, rekeying saves money without compromising security.

Ready to secure your property? We offer both rekeying and lock replacement services throughout Perth. Our experienced locksmiths will assess your locks, discuss your specific needs, and provide honest recommendations with fixed-price quotes.

Call us today for a free consultation. We'll help you choose the right option for your security needs and budget, and can often provide same-day service for your peace of mind.