Home Security Tips: How to Improve Your Protection by 89.1% With Better Locks
14 min read | Updated 2026-09-04
How To Improve Home Security With Better Locks?
Most break-ins don’t happen the way movies show them. There’s no cut glass, no alarm sirens, no dramatic chase. According to the FBI’s Uniform Crime Reporting data, the majority of home burglaries involve forcible entry through an ordinary door, and a surprising share happen through doors that were never forced at all – just picked, bumped, or unlocked because the hardware was cheap to begin with.
That’s the good news hiding inside the bad news: locks are the single most fixable weak point in most homes. You don’t need a full security system overhaul to make a real dent in your risk. Swap the flimsy builder-grade deadbolt for a properly graded one, reinforce the strike plate, and fix the sliding door that’s been rattling loose since you moved in, and you’ve closed off the paths burglars actually use.
This guide walks through exactly how to improve home security with better locks – from understanding what an ANSI lock grade really means, to picking between a deadbolt and a smart lock, to reinforcing a door frame so it can’t be kicked in on the first try. We’ll also cover sliding doors, UPVC doors, brand comparisons, realistic costs, and the one safety trade-off almost nobody thinks about when they upgrade their locks: fire escape safety.
Why Your Locks Decide Whether Your Home Is a Target
Burglars are opportunists, not safecrackers. Most are looking for the fastest, quietest way in, and they case a door for maybe ten to fifteen seconds before deciding whether it’s worth the risk. A door with a visible, chunky deadbolt and a snug frame reads as effort. A door with a wiggly knob lock and a hollow-sounding frame reads as an invitation.
That’s why lock quality has an outsized effect on your actual risk, compared to almost anything else you could spend money on. A $200 alarm sign in the yard helps a little. A $40 lock upgrade done correctly helps a lot, because it directly targets the two things burglars care about most: time and noise. The longer and louder a break-in attempt is, the more likely it gets abandoned.
Front doors remain the single most common entry point, but back doors, garage doors, and sliding patio doors all show up regularly in burglary data too. If you’re planning a broader home renovation, this is the cheapest security upgrade you can fold into the project – and it pays for itself the first time it stops someone from getting past your front door.
Understanding Lock Security Grades: ANSI Grade 1, 2, and 3
Every residential deadbolt sold in the U.S. carries an ANSI/BHMA grade, and it’s the single most useful number on the box. The ANSI grading system tests locks on cycle count (how many times it opens and closes before failing), strike resistance (how many hammer blows it survives), and a weight/pull test. The result is a grade from 1 (best) to 3 (basic).
Grade 3 is what most builders install by default – it meets code, but it’s the minimum, not the recommendation. Grade 2 is a solid step up and reasonable for secondary doors. Grade 1 is the standard we’d recommend for every exterior entry door, especially the front door, and it’s no longer just a commercial-hardware thing – plenty of residential and smart deadbolts now ship with a Grade 1 rating.
| Grade | Cycle Test | Strike Test | Best For | Typical Price Range |
|---|---|---|---|---|
| Grade 1 | 250,000 cycles | 10 hammer strikes | Front doors, high-risk areas, rental turnover doors | $60 – $180 |
| Grade 2 | 150,000 cycles | 5 hammer strikes | Back doors, side doors, low-traffic entries | $30 – $80 |
| Grade 3 | 100,000 cycles | 2 hammer strikes | Interior doors, minimum-code compliance only | $15 – $35 |
Choosing the Right Lock Type for Every Door
Not every door needs the same lock. A front door that sees daily traffic and faces the street has different needs than a side gate or a garage entry. Before you buy anything, measure the door and the existing bore holes – a quick pass with a door size calculator and a rough opening calculator will save you a return trip to the hardware store.
| Lock Type | Security Level | Best Use | Approx. Cost |
|---|---|---|---|
| Single-cylinder deadbolt | High | Primary exterior doors | $25 – $150 |
| Double-cylinder deadbolt | Very high | Doors near glass panels or sidelights | $40 – $180 |
| Mortise lock | Very high | Older or high-end exterior doors | $100 – $400 |
| Multi-point locking system | Very high | UPVC and composite doors | $150 – $500 |
| Smart lock (keypad/app) | High (varies by model) | Front doors, rentals, Airbnb | $100 – $350 |
| Knob lock (standalone) | Low | Interior doors only – never as sole exterior lock | $10 – $40 |
Deadbolts 101: What Actually Makes One Secure
A deadbolt is only as strong as its weakest part, and that’s rarely the part people focus on. Here’s what to actually check before buying:
One-inch throw: the bolt should extend a full inch into the frame. Anything shorter is easier to pry or kick past.
Hardened steel construction: the bolt itself, not just the housing, should be hardened steel – this is what defeats hacksaws and bolt cutters.
Anti-snap and anti-drill cylinder: euro-cylinder style locks are vulnerable to snapping, a technique that takes seconds with basic tools. Look for cylinders explicitly rated anti-snap, anti-pick, and anti-drill.
Reinforced strike plate: even a Grade 1 deadbolt underperforms if it’s screwed into a thin strike plate with half-inch screws. More on fixing that in the reinforcement section below.
Smart Locks: Convenience Without Sacrificing Security
Smart locks solve real problems – lost keys, giving guests temporary access, checking whether you locked up from your phone. But ‘smart’ and ‘secure’ aren’t automatically the same thing, so it’s worth knowing what to look for.
Good smart locks pair app or keypad convenience with an ANSI Grade 1 or 2 deadbolt mechanism underneath, not a flimsy latch dressed up with electronics. Brands like Schlage, Yale, Kwikset, August, Ultraloq, Level, and Lockly all sell models that meet Grade 1 or 2 standards – check the spec sheet, not just the marketing copy.
For rentals and Airbnb-style properties, a keypad model with time-limited or one-time codes eliminates the rekeying headache between guests. If you keep a spare metal key as backup, a key holder selector near the entry (out of view from the street) keeps it organized without leaving it under the mat.
| Feature | Why It Matters | Look For |
|---|---|---|
| Underlying deadbolt grade | The electronics don’t matter if the bolt is weak | ANSI Grade 1 or 2 certification |
| Connectivity | Determines remote access and integrations | Wi-Fi, Bluetooth, Z-Wave, or Matter compatibility |
| Backup access | Batteries die; you still need to get in | Physical key override or backup power port |
| Access codes | Useful for guests, cleaners, contractors | Time-limited and one-time-use codes |
| Activity log | Lets you see who came and went, and when | In-app history with timestamps |
| Auto-lock | Prevents ‘forgot to lock it’ scenarios | Adjustable auto-lock delay |
Reinforcing the Weak Points: Strike Plates, Frames, and Hinges
Here’s a fact that surprises most homeowners: in a kick-in attempt, the door itself rarely fails first. The door frame does – specifically, the short one-inch screws that came with the strike plate, which barely reach past the door jamb into open air.
The fix is inexpensive and takes about twenty minutes per door. Replace the factory screws with three-inch screws that reach into the wall stud behind the frame, or install a full-length security strike plate that spreads the impact force across a wider area. A hinge calculator helps you match the right hinge and screw sizing if you’re upgrading hinges at the same time – and yes, hinges deserve the same treatment, since a door can sometimes be popped off its hinges just as easily as its lock can be forced.
If you’re also replacing the door handle hardware while you’re in there, a quick check against a door handle sizing guide prevents a mismatched backset from holding up the whole project.
Securing Sliding Glass and Patio Doors
Sliding doors and first-floor windows account for a meaningful share of forced entries, largely because the factory-installed latches on sliding doors are notoriously easy to jimmy or lift off their track entirely. A track-mounted security bar or a pin lock through the frame closes that gap fast and costs very little.
A dedicated slide lock selector tool can help you match the right hardware to your specific track width and door material, since sliding door dimensions vary more than people expect between manufacturers.
Two more details worth checking: make sure the door can’t simply be lifted up and out of its track (a common vulnerability on older installations), and add a secondary pin lock through the frame so the door can’t slide even if the primary latch fails.
Locks for UPVC and Composite Doors
UPVC and composite doors almost always rely on a multi-point locking system rather than a standalone deadbolt – engaging several bolts along the door edge simultaneously when you turn the handle or key. It’s a genuinely strong system when it’s in good condition, but the euro-cylinder at the handle is the part burglars target, usually through the snapping technique mentioned earlier.
If your UPVC door still has its original cylinder, upgrading to an anti-snap, anti-bump, anti-pick rated cylinder is the highest-value single change you can make. It’s a straightforward swap that doesn’t require replacing the whole door or the multi-point mechanism itself.
Lock Brand Face-Off: Schlage vs. Kwikset vs. Defiant
Homeowners ask this comparison constantly, so here’s the honest breakdown. Schlage generally leads on build quality and consistently offers Grade 1 options even in consumer lines. Kwikset is the mid-range workhorse – reliable, widely available, and known for its SmartKey re-keying feature, though its Grade 1 offerings are less common than Schlage’s. Defiant, sold primarily through big-box retailers, sits at the budget end and typically ships at Grade 2 or 3 – perfectly fine for a secondary door, but not our first pick for a front entry.
| Brand | Typical Grade | Standout Feature | Best For |
|---|---|---|---|
| Schlage | Grade 1 (widely available) | Consistent hardened-steel construction | Front doors, security-first buyers |
| Kwikset | Grade 2 (Grade 1 on select models) | SmartKey re-key-it-yourself system | Budget-conscious homeowners, rentals |
| Defiant | Grade 2-3 | Low price point, big-box availability | Secondary doors, garages, sheds |
DIY Installation: What You Can Realistically Do This Weekend
Most single-cylinder deadbolt swaps are a genuine DIY job if your existing bore holes match the new lock’s specs – expect 20 to 40 minutes per door with basic tools. Multi-point systems, mortise locks, and any job that involves cutting new bore holes are better left to a locksmith unless you’re comfortable with a hole saw and a lot of patience.
A simple weekend plan: start with the front door deadbolt and strike plate reinforcement (highest impact, lowest cost), then move to sliding door hardware, then garage and side-door hardware. If you’re touching door stoppers or thresholds while you’re at it, a door stopper selector keeps that part of the project just as painless.
How Much Should You Budget for Better Locks?
A full-home lock upgrade doesn’t need to happen all at once, and it doesn’t need to be expensive. Here’s a realistic range for a typical single-family home with a front door, back door, and one sliding door.
| Upgrade | DIY Cost | Professionally Installed |
|---|---|---|
| Front door Grade 1 deadbolt | $60 – $180 | $120 – $280 |
| Strike plate reinforcement kit | $15 – $30 | $50 – $90 (bundled with lock install) |
| Smart lock (front door) | $100 – $350 | $180 – $450 |
| Sliding door security bar/pin lock | $10 – $40 | $40 – $80 |
| Secondary door Grade 2 deadbolt | $30 – $80 | $90 – $180 |
Worth checking before you finalize your plan: some home insurers offer small premium discounts for ANSI-graded deadbolts and monitored security features. It’s worth a quick call, since insurers can also flag sneaky home insurance tactics that quietly reduce your coverage if security upgrades aren’t documented correctly.
Locks aren’t the only layer worth adding while you’re budgeting for this project. Motion-activated LED lighting around entry points is a cheap, effective deterrent, and if your garage is one of your entry points, don’t overlook garage door seals – a gapped or damaged seal at the bottom of the door is an easy pry point that has nothing to do with the lock itself.
Safety Guidelines: Don't Let Better Security Become a Fire Risk
This is the trade-off almost nobody thinks about when they upgrade their locks: a door that’s harder to break into from the outside also needs to stay easy to open from the inside during an emergency. Double-cylinder deadbolts, which require a key on both sides, are a common culprit – if the key isn’t within arm’s reach during a fire, you’ve turned your best security upgrade into an evacuation hazard.
The National Fire Protection Association’s home escape planning guidance recommends that every household identify two ways out of each room and make sure all doors and windows along those routes open easily from the inside, without a key, tool, or special knowledge. If you do install a double-cylinder deadbolt on a door near a glass panel, keep the interior key on a hook immediately beside the door – never in a drawer, and never on a keyring that travels with you.
A few practical habits to build in alongside your lock upgrades: test that every reinforced door still opens smoothly from the inside after installation, keep smart lock batteries fresh so you’re never locked out during an emergency, and walk through your everyday home safety checklist once a year alongside your lock maintenance. Good security and fast egress aren’t in conflict – they just both need to be part of the same plan.
FAQs: Home Security Tips with Better Locks
What is the best type of lock for home security?
For most front doors, a single-cylinder ANSI Grade 1 deadbolt with an anti-snap, anti-pick, anti-drill cylinder offers the best balance of security, cost, and everyday convenience. Add a reinforced strike plate with three-inch screws for the biggest real-world improvement.
Is Grade 1 or Grade 2 better for a front door?
Grade 1 is stronger and the better choice for a front door, since it withstands more cycles and more forceful strikes than Grade 2. Grade 2 is a reasonable, budget-friendly option for secondary doors like a back door or garage entry.
Are smart locks as secure as traditional deadbolts?
A smart lock can be just as secure as a traditional deadbolt, as long as it’s built around an ANSI Grade 1 or 2 deadbolt mechanism rather than a lightweight electronic latch. Check the certification on the spec sheet, not just the marketing description.
How much does it cost to upgrade home door locks?
A DIY upgrade with a Grade 1 deadbolt and strike plate reinforcement typically runs $75 to $210 per door. Professional installation adds roughly $50 to $100 per door in labor, depending on your area and whether new bore holes are needed.
What is an anti-snap lock and do I need one?
An anti-snap lock has a euro-cylinder designed with a sacrificial breakpoint that prevents the entire cylinder from snapping off under force, a common attack method on UPVC doors. If your door uses a euro-cylinder, an anti-snap rated version is a worthwhile, low-cost upgrade.
Should I rekey or replace my locks when moving into a new home?
Rekeying is faster and cheaper if the existing hardware is in good condition and meets a decent security grade. Replace the locks entirely if the current hardware is low-grade, worn, or you simply want a fresh, verified security rating throughout the home.
How do I secure a sliding glass door?
Add a track-mounted security bar or a rod cut to fit the track, install a secondary pin lock through the door frame, and confirm the door can’t be lifted up and off its track – a common vulnerability on older sliding door installations.
Is a double-cylinder deadbolt safe to use?
It can be, but only with a plan: keep the interior key on a hook immediately next to the door at all times, and never in a drawer or on a keyring that leaves the house, so everyone can exit quickly in an emergency.
What's the difference between rekeying and changing locks?
Rekeying changes the internal pin configuration so old keys no longer work, while keeping the same lock hardware. Changing locks replaces the entire mechanism, which is necessary if you want a higher security grade or different lock type.
Do better locks actually lower home insurance premiums?
Some insurers offer modest discounts for ANSI-graded deadbolts, monitored alarm systems, or smart locks with activity logging, though policies vary widely. It’s worth a direct call to your provider to confirm what documentation they require.
How often should door locks be replaced?
A quality Grade 1 deadbolt can last well beyond a decade with normal use, but replace any lock immediately if it feels loose, sticks frequently, or after a lost key, a break-in attempt, or a change in household occupants such as a move-out tenant.
What locks work best for UPVC and composite doors?
UPVC and composite doors typically use a multi-point locking system, so the highest-value upgrade is usually the euro-cylinder at the handle – choose one rated anti-snap, anti-bump, and anti-pick rather than replacing the entire mechanism.
The Bottom Line
You don’t need to replace every lock in your house this weekend to move the needle on your home’s security. Start with the highest-impact, lowest-cost fix – a Grade 1 deadbolt and a properly reinforced strike plate on your front door – and work outward from there to sliding doors, secondary entries, and the garage.
Every upgrade in this guide is something a burglar has to notice, work around, or give up on. Stack a few of them together, and you’ve turned your home from an easy ten-second target into one that isn’t worth the risk.
