Door Lock Replacement Costs in New Jersey — A Complete Breakdown
Whether you just moved into a new home, experienced a break-in, or simply want to upgrade your security, changing door locks is one of the most important things you can do to protect your property. But how much should you expect to pay in New Jersey? Here is everything you need to know about door lock replacement costs in 2026.
Average Door Lock Change Costs in NJ
The cost to change a door lock depends on the type of lock you choose and whether you hire a professional or do it yourself. Here is a detailed cost breakdown:
| Lock Type | Lock Cost | Installation | Total |
|---|---|---|---|
| Standard knob lock | $25 – $60 | $50 – $90 | $75 – $150 |
| Deadbolt lock | $30 – $100 | $70 – $150 | $100 – $250 |
| High-security lock (Medeco, Mul-T-Lock) | $80 – $200 | $70 – $150 | $150 – $350 |
| Smart lock (Schlage, Yale, August) | $100 – $300 | $50 – $100 | $150 – $400 |
| Handleset with deadbolt | $80 – $250 | $75 – $150 | $155 – $400 |
| Keypad / electronic deadbolt | $60 – $200 | $50 – $100 | $110 – $300 |
Most homeowners in NJ pay between $100 and $200 per lock for a standard lock change including labor. If you are changing multiple locks at the same time, many locksmiths offer a discount — ask about multi-lock pricing when you call.
Rekey vs. Replace: Which Is Right for You?
Before you commit to replacing your locks entirely, consider whether rekeying might be a better option. Here is how they compare:
| Factor | Rekeying | Replacing |
|---|---|---|
| Cost per lock | $20 – $50 | $75 – $200+ |
| What changes | Internal pins only | Entire lock hardware |
| Old keys work? | No | No |
| Security upgrade? | Same level | Can upgrade |
| Time to complete | 5-10 minutes/lock | 15-30 minutes/lock |
| Best for | Moving in, lost keys | Damaged locks, upgrades |
Choose rekeying when: your existing locks are in good condition and you just need to invalidate old keys — like when moving into a new home or after a roommate moves out. Learn more in our lock rekeying cost guide.
Choose replacement when: your locks are old, damaged, low-quality, or you want to upgrade to a higher security grade. Also choose replacement if your locks were compromised during a break-in attempt.
When Should You Change Your Door Locks?
There are several situations where changing your locks is strongly recommended:
- Moving into a new home — You have no idea how many copies of the existing keys are floating around. Previous owners, their family, contractors, real estate agents, and neighbors may all have copies.
- After a break-in or attempted break-in — If your door was forced or your lock was tampered with, the hardware may be compromised even if it still appears to work.
- Lost or stolen keys — If you cannot account for your keys, anyone who finds them could potentially access your home.
- Worn or malfunctioning locks — If your key sticks, the lock is hard to turn, or the deadbolt does not fully extend, the lock may fail when you need it most.
- Upgrading security — If you have builder-grade locks (typically Kwikset Grade 3), upgrading to Grade 1 or Grade 2 locks significantly improves your security.
- After a relationship change — Divorce, breakup, or a roommate moving out are all good reasons to change or rekey your locks.
- After giving out keys to service workers — If a contractor, dog walker, or cleaning service had a key and the relationship has ended, change or rekey your locks.
DIY vs. Professional Lock Change
Changing a door lock is one of the more accessible home improvement projects, but there are trade-offs to consider:
DIY advantages: You save on labor costs ($50-$150 per lock). Standard lock changes on existing door prep require only a screwdriver and about 15 minutes.
When to hire a professional:
- Your door needs new holes drilled (different lock size or adding a deadbolt where none existed)
- You want all locks keyed alike (using the same key for every door)
- You are installing high-security or commercial-grade locks that require precise alignment
- Your door frame is damaged and needs reinforcement
- You are installing a smart lock and need help with setup and programming
What Affects the Cost of Changing Locks?
- Lock brand and grade — ANSI Grade 1 locks (commercial grade) cost more than Grade 3 (residential basic)
- Number of locks — Most locksmiths offer discounts for multiple locks in a single visit
- Lock type — Smart locks and high-security locks require more expertise and cost more
- Door preparation — If new holes need to be drilled, the cost increases
- Emergency vs. scheduled — After-hours or same-day service may carry a surcharge
- Keying options — Having all locks keyed alike adds a small additional cost
How to Save Money on Lock Changes
- Change multiple locks in one visit — The service call fee is only charged once
- Consider rekeying first — If your locks are in good shape, rekeying costs 60-70% less than replacing
- Schedule during business hours — Avoid after-hours surcharges by booking daytime appointments
- Ask about the lock grade — A mid-range Grade 2 lock offers excellent security without the premium price of Grade 1
For more general pricing information, see our complete NJ locksmith cost guide.
Call Paul Quick Locksmith for Door Lock Changes
Paul Quick Locksmith provides expert residential locksmith services throughout New Jersey. We carry a wide selection of locks from trusted brands like Schlage, Kwikset, Medeco, and Mul-T-Lock. Our technicians install your new locks correctly the first time, and we always provide upfront pricing before starting any work.
Ready to change your locks? Call us today: (201) 822-9313 or (973) 358-8464
Related Articles
- Residential Locksmith Services
- Lock Change Service
- How Much Does a Locksmith Cost in NJ?
- How Much Does It Cost to Rekey a Lock in NJ?
Paul Quick Locksmith offers 24/7 service across NJ. Call (201) 822-9313 or visit our services page.