The Complete Guide to Home Lock Security in 2026

Why Home Lock Security Matters More Than Ever

According to FBI crime statistics, a burglary occurs every 25 seconds in the United States, and 65% of burglaries happen during daylight hours when homeowners are at work or school. The most common entry point? The front door — and in 34% of burglaries, the intruder simply walks through an unlocked or poorly secured door. Proper lock security is your first and most important line of defense against break-ins, yet most homeowners are using inadequate locks that a determined burglar can defeat in under 30 seconds.

This guide covers every aspect of home lock security in 2026: lock types, grading systems, smart lock technology, professional installation, and how to create a comprehensive lock security plan for your home.

Types of Residential Locks and Their Security Levels

Not all locks provide equal security. Understanding the different types and their strengths helps you make informed decisions about protecting your home.

Deadbolt Locks

Deadbolts are the most important lock on any exterior door. Unlike spring-bolt locks (knob locks), deadbolts require a deliberate turning motion to engage and cannot be pushed back with a credit card or knife. There are three types:

• Single-cylinder deadbolt: Key entry on the outside, thumb turn on the inside. The standard choice for most exterior doors. Cost: $25–$200 depending on grade.
• Double-cylinder deadbolt: Key required on both sides. Prevents a burglar from breaking a nearby window and reaching in to unlock the door. However, they pose a fire escape hazard and are prohibited by code in some jurisdictions. Cost: $30–$150.
• Smart deadbolt: Electronic deadbolts with keypad, fingerprint, or smartphone access. Combines deadbolt security with keyless convenience. Cost: $100–$400.

Knob Locks (Spring Bolt)

Knob locks use a spring-loaded latch that can be defeated with a credit card or butter knife in seconds. They should never be the sole lock on an exterior door — always pair with a deadbolt. Knob locks are suitable as secondary locks and for interior doors. Cost: $15–$100.

Smart Locks

Smart locks have matured significantly by 2026 and now offer security comparable to traditional deadbolts with added features:

• Keypad/touchscreen locks: Enter a numeric code — no key needed. Multiple user codes can be created and deleted (ideal for house cleaners, dog walkers, and Airbnb guests). Popular models: Schlage Encode Plus, Yale Assure Lock 2. Cost: $150–$350.
• Fingerprint/biometric locks: Unlock with your fingerprint in under 1 second. No codes to remember or share. Cost: $150–$400.
• Bluetooth/WiFi locks: Unlock with your smartphone via Bluetooth (proximity) or WiFi (remote access from anywhere). Monitor lock status, view access logs, and receive notifications. Cost: $150–$400.
• Auto-lock features: Many smart locks automatically lock after a set time period, eliminating the risk of leaving the door unlocked accidentally.

When choosing a smart lock, look for BHMA Grade 2 or Grade 1 certification, ANSI/BHMA A156.36 electronic lock standards, and compatibility with your smart home platform (Apple HomeKit, Google Home, Amazon Alexa, or Samsung SmartThings).

High-Security Locks

For maximum protection, high-security locks feature pick-resistant pin tumbler mechanisms, drill-resistant housings, bump-proof designs, and restricted key blanks that cannot be duplicated at a hardware store. Brands like Medeco, Mul-T-Lock, and Abloy lead this category. Cost: $150–$400 per lock. These are recommended for homes in high-crime areas, homes with valuable contents, and as primary entry locks on any home.

Understanding Lock Grades: ANSI/BHMA Ratings

The American National Standards Institute (ANSI) and Builders Hardware Manufacturers Association (BHMA) grade locks from 1 to 3 based on security, durability, and performance testing:

• Grade 1 (Highest): Commercial-grade security. Withstands 800,000 cycles, 10 strikes at 75 lbf, and 4 door-pull tests at 300 lbf. Recommended for exterior doors on all homes. Brands: Schlage B60N, Medeco Maxum.
• Grade 2 (Residential): Good security for residential use. Withstands 400,000 cycles and 5 strikes at 75 lbf. Acceptable for most homeowners. Brands: Kwikset 980, Schlage B60.
• Grade 3 (Basic): Minimum acceptable standard. Withstands 200,000 cycles and 2 strikes at 75 lbf. Not recommended for exterior doors. Typically found on interior doors and low-cost builder-grade hardware.

Our recommendation: Use Grade 1 deadbolts on all exterior doors. The price difference between Grade 2 and Grade 1 is often only $20–$50, but the security improvement is substantial.

How Much Does Lock Installation and Rekeying Cost?

• Deadbolt installation: $50–$150 labor (plus lock cost) for standard installation in an existing door with proper prep
• New deadbolt bore (no existing hole): $75–$200 labor — requires drilling a new hole and mortising the frame for the strike plate
• Lock rekeying: $15–$40 per lock if brought to a locksmith shop; $50–$100 per lock for on-site service (minimum trip charge of $50–$75 applies)
• Whole-house rekey (5–7 locks): $150–$350 on-site, keyed alike so one key operates all locks
• Smart lock installation: $75–$200 labor on top of the lock cost, depending on whether existing wiring or modifications are needed
• High-security lock installation: $100–$250 labor due to precision requirements
• Emergency lockout service: $75–$250 depending on time of day (after-hours commands premium pricing)
• Lock repair: $50–$150 for most residential lock repairs

When to DIY vs. Hire a Professional Locksmith

DIY-Friendly Lock Tasks

• Replacing an existing deadbolt with a same-size unit (standard 2-1/8 inch bore, 2-3/8 or 2-3/4 inch backset)
• Installing smart locks that replace existing deadbolts
• Adjusting strike plates for better alignment
• Rekeying locks using consumer rekey kits (Kwikset SmartKey, Schlage SecureKey)
• Installing door reinforcement plates and security strike plates

Hire a Professional Locksmith For

• Drilling new deadbolt holes in doors (one mistake ruins the door)
• Installing high-security lock systems
• Master key systems for multiple doors
• Lockout situations (avoid breaking your own door — it costs more to repair than a locksmith call)
• Lock repairs involving internal mechanisms
• Commercial-grade lock installations
• Safe opening and combination changes

Beyond Locks: Comprehensive Door Security

A high-quality lock is only as secure as the door and frame it is installed in. Here are essential reinforcements that dramatically improve entry point security:

• Reinforced strike plate: Replace the standard strike plate (held by 3/4-inch screws) with a heavy-duty security strike plate using 3-inch screws that anchor into the wall stud. This $10–$20 upgrade is the single most effective door security improvement. A reinforced strike plate prevents most kick-in attacks.
• Door frame reinforcement: Products like Door Armor or StrikeMaster II reinforce the entire jamb area, distributing kick-in force across a larger area. Cost: $50–$100.
• Hinge security: Use screws at least 3 inches long in door hinges, reaching the wall stud. Add hinge pins with set screws to prevent pin removal on outswing doors.
• Door material: Solid wood or steel doors resist forced entry far better than hollow-core doors. If your exterior door is hollow-core, replacing it is a priority ($300–$1,500 installed).
• Peephole or video doorbell: Know who is at the door before opening it. Wide-angle peepholes cost $10–$30. Video doorbells (Ring, Google Nest) cost $100–$350 and provide recorded footage.
• Sliding door locks: Standard sliding door latches are easily defeated. Add a secondary lock (Charlie bar, foot-operated lock, or security pin in the upper track) to secure sliding glass doors.

How to Choose a Locksmith

• Local establishment: Choose a locksmith with a physical shop in your community. Many locksmith scams involve out-of-state call centers that dispatch untrained workers who quote low prices over the phone, then charge exorbitant fees on-site.
• Licensing: Many states require locksmith licensing. Verify credentials with your state licensing board.
• Association membership: Membership in ALOA (Associated Locksmiths of America) indicates professional commitment and access to ongoing training.
• Upfront pricing: A legitimate locksmith provides a price range over the phone and a firm quote before beginning work. Walk away from anyone who starts work before quoting a price.
• Identification: A professional locksmith arrives in a marked vehicle and carries company identification. Be wary of unmarked vehicles and workers without ID.
• Reviews: Check Google Reviews — established locksmiths will have dozens to hundreds of reviews. A company with few reviews or only recent reviews may be a fly-by-night operation.

Frequently Asked Questions

Should I rekey or replace locks when I buy a new home?

Always change or rekey locks when moving into a new home — this is a non-negotiable security step. You have no way of knowing how many copies of the existing keys are in circulation (previous owners, their family, neighbors, contractors, real estate agents). Rekeying is the most cost-effective option at $15–$40 per lock. If the existing locks are Grade 3 or visibly worn, replace them entirely with Grade 1 or Grade 2 deadbolts.

Are smart locks safe? Can they be hacked?

Quality smart locks from reputable brands are very secure. They use AES 128-bit or 256-bit encryption (the same standard used in banking), and most vulnerabilities discovered in testing have been patched through firmware updates. The practical risk of a smart lock being hacked is far lower than the risk of a traditional lock being picked or a door being kicked in. Choose smart locks with BHMA Grade 2 or higher certification and keep their firmware updated.

How long do locks last before they need replacement?

Quality mechanical deadbolts last 20–30+ years with minimal maintenance. Smart locks have a shorter functional life of 5–10 years due to battery degradation, software obsolescence, and electronic component wear. Interior knob locks typically last 15–25 years. Signs that a lock needs replacement include difficulty turning the key, visible wear on the keyway, wobbling or loose hardware, and any lock that has been compromised in a break-in attempt (even unsuccessful attempts can damage internal components).

What should I do if my key breaks off in the lock?

If the broken key piece is protruding, try needle-nose pliers to grip and extract it. If it is flush or inside the keyway, apply a small amount of lubricant (graphite or WD-40) and try a broken key extractor tool ($5–$10 at hardware stores). If these methods fail, call a locksmith — they have specialized extraction tools and can remove the broken piece without damaging the lock in most cases. Cost for professional extraction: $50–$100 on top of the service call fee.