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For a U.S. homeowner hiring a professional, changing a house lock typically costs about $60–$350 per lock, according to Angi’s 2026 replacement guide; Angi reports an average of $150 per lock. The total depends on whether you rekey the existing lock or install new hardware, plus the lock type, labor, door work and timing. Those are guide estimates, not a guaranteed installed price.
What a professional lock change costs
“Changing” a lock can mean either rekeying existing hardware so old keys no longer work, or replacing the lock itself. The estimates below cover different scopes, so compare like with like.
| Service | Published estimate | What it covers |
|---|---|---|
| Lock replacement | $60–$350 per lock; $150 average | Angi’s 2026 guide estimate for replacement. The total varies by lock, features and labor. Angi replacement guide |
| Rekeying | $50–$130 per lock | Angi’s 2026 locksmith-cost guide. A separate Angi comparison page estimates $50–$100, reflecting a different page and service scope. Angi locksmith cost guide and Angi rekey-versus-replace guide |
| New lock installation | $100–$300 | Angi’s 2026 locksmith guide service estimate; it is separate from the retail cost of hardware. Angi locksmith cost guide |
| Deadbolt replacement | $40–$120 | Angi’s 2026 replacement guide breakdown by lock type. Angi replacement guide |
| Locksmith labor | $50–$250 | HomeAdvisor’s 2026 guide gives this labor range for changing house locks; lock hardware is additional. HomeAdvisor lock-change cost guide |
Angi also reports an average locksmith-service cost of $164 in 2026, based on 16,505 verified projects reported by Angi Pros. That figure is for locksmith service overall, not the cost of replacing one lock. HomeAdvisor says its 2026 cost data draws on more than 10,000 customer surveys; that describes its overall methodology, not a lock-change-specific sample.
Rekeying or replacing: which do you need?
Choose rekeying if the hardware works and you only need new keys
Rekeying changes the pins or tumblers inside a compatible lock so that a different key operates it. It can suit situations such as moving into a home, losing a key or changing who has access, provided the existing lock is in good condition. If you want several locks to work with one key, they generally need to be the same brand or have compatible keyways.
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- Brass body; steel internal structure
- Adjustable latch from 2-3/8 - 2-3/4 inches (60-70mm)
- Includes four (4) brass keyed alike keys, KW1 keyway, rounded steel faceplate and strike, and zinc alloy latch bolt
- Detailed installation instructions included
- Backed by an Amazon Basics 1-year limited warranty
Choose replacement if the lock or your requirements have changed
A worn, damaged, compromised or door-incompatible lock may need replacement rather than rekeying. Replacement also makes sense when you want a different type or feature set, such as moving from a basic lock to a smart or high-security model. Ask the locksmith to explain whether the existing hardware can be rekeyed before agreeing to replace it.
What can raise or lower the total?
- Number and type of locks: More locks usually mean a higher bill, although providers may offer bundled pricing. Standard knobs and deadbolts generally cost less than mortise, high-security, keypad or smart locks.
- Labor and service-call charges: Quotes may use a per-lock labor charge, hourly rate or minimum service fee. Clarify whether the visit and travel are included.
- Door or frame work: Retrofitting an older door, drilling new holes or modifying the frame can add labor and materials.
- Timing: Emergency, weekend, holiday or after-hours calls may have a surcharge. Angi’s 2026 locksmith guide estimates an additional $50–$150 for emergency or after-hours service; the actual surcharge is provider-specific. Angi locksmith cost guide
- Features and setup: Smart-lock programming, high-security parts, keyed-alike or master-key arrangements, and upgraded strike plates can affect the price.
DIY replacement versus hiring a locksmith
For a straightforward, compatible doorknob or deadbolt replacement, Angi estimates basic DIY materials at $20–$80. That is a materials estimate, not a professional installed price. Check that the new hardware fits the door, and consider whether rekeying your existing lock would meet your needs before buying a replacement.
Rank #2
- Easy Installation: Ball 3-bar lock design; simple DIY setup with clear instructions, no professional help needed
- Premium Quality: Tested to 250,000 cycles; stainless steel handle, brass mechanism
- Universal Fit: Fits 2-3/8" (60mm) / 2-3/4" (70mm) backsets and 1-3/8"–1-3/4" (35–45mm) door thickness; compatible with left/right-handed doors
- Locks purchased separately will be keyed different. Includes 3 keys per set
- Safety & Durability: Lockable on both sides; stainless steel handle with reinforced steel structure and anti-collision cylinder for long-lasting security
A locksmith is a better fit when the system is complex, high-security, smart or multipoint, or when the door or frame needs modification. Professional estimates may include labor and travel, so they should not be compared directly with hardware-only DIY costs.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to compare locksmith quotes
When you ask for estimates, describe how many locks need work, what type they are, whether they currently function, and whether you want new hardware or only new keys. Request an itemized quote covering:
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- ALL-IN-ONE DOOR LOCK SET** This complete front door lock set includes 2 single cylinder deadbolt, 2 matching door knob, and 8 keys (2 Pack) All locks are keyed alike one key for every door no separate keys needed Perfect for upgrading your front door exterior door or even as a reliable garage door lock.
- SUPERIOR SECURITY The single cylinder deadbolt lock provides robust protection for your family. Made of durable materials, this door security lock is designed to withstand forced entry. Whether used as an entry door lockset or a front door handle and deadbolt set, you can trust its strength.
- EASY DIY INSTALLATION Designed to fit standard door preps (2-1/8 inch bore hole and 2-3/8 inch or 2-3/4 inch backset), this door lock set can be installed in minutes with just a screwdriver. **All necessary screws and latch are pre-included in the package, so you have everything you need for a seamless installation with no extra trips to the hardware store.** No professional help needed. It is the ideal door handle with lock replacement for any homeowner.
- VERSATILE USE Works perfectly on front doors, entry doors, and garage doors. This exterior door handle and deadbolt combo is an ideal door handle with lock replacement for any exterior application, offering both style and function.
- MODERN MATTE BLACK FINISH The sleek matte black door knob and deadbolt complement a wide range of home decor styles. The corrosion-resistant finish ensures it stays looking great. Easy DIY installation with just a screwdriver.
- Service-call or visit fee
- Labor per lock
- Hardware make, model and price, if replacing
- Rekeying option and cost
- Additional keys
- Door or frame work
- After-hours surcharge, if applicable
- Taxes and warranty
Compare quotes only when they cover the same number and type of locks, the same service (rekeying or replacement), and the same labor, travel, door work, keys, timing and warranty. Angi recommends getting multiple quotes and, when the work is not urgent, scheduling during business hours.
Quick Recap
Best Value
- COMBO PACK: Use on doors requiring a high level of security, includes a deadbolt and keyed entry lever, recommended for a low-cost exterior door solution
- SMARTKEY SECURITY: Kwikset’s SmartKey Security technology protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds
- BOX INCLUDES: Box includes deadbolt, knob, adjustable latches with round and square front options or drive-in collar, round corner strikes, SmartKey tool, 2 Kwikset keys, screws and Allen wrench.
- FITS STANDARD DOORS: Fits standard size doors 1-3/8" to 1-3/4" thick, latch backset adjusts to either 2-3/8" or 2-3/4" with just a twist during installation
- ADJUSTABLE LATCH: With just a twist during installation, the latch backset can be adjusted to either 2-3/8" or 2-3/4" in order to fit all standard door preparations
Rank #4
- ALL-IN-ONE DOOR LOCK SET: This complete front door lock set includes a single cylinder deadbolt and a matching door knob, and 4 keys (1 Pack), all keyed alike for your convenience. Perfect for upgrading your front door, exterior door, or even as a reliable garage door lock. It’s the ultimate door lock with key solution for your home.
- SUPERIOR SECURITY The single cylinder deadbolt lock provides robust protection for your family. Made of durable materials, this door security lock is designed to withstand forced entry. Whether used as an entry door lockset or a front door handle and deadbolt set, you can trust its strength.
- EASY DIY INSTALLATION Designed to fit standard door preps (2-1/8 inch bore hole and 2-3/8 inch or 2-3/4 inch backset), this door lock set can be installed in minutes with just a screwdriver. **All necessary screws and latch are pre-included in the package, so you have everything you need for a seamless installation with no extra trips to the hardware store.** No professional help needed. It is the ideal door handle with lock replacement for any homeowner.
- VERSATILE USE Works perfectly on front doors, entry doors, and garage doors. This exterior door handle and deadbolt combo is an ideal door handle with lock replacement for any exterior application, offering both style and function.
- MODERN MATTE BLACK FINISH The sleek matte black door knob and deadbolt complement a wide range of home decor styles. The corrosion-resistant finish ensures it stays looking great. Easy DIY installation with just a screwdriver.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
