--- title: Window Lock Installation: A Small Upgrade with a Big Security Impact description: Window lock installation is one of the fastest, most affordable ways to strengthen your home's security — and most windows ship with locks that barely slow anyone down. Here's what actually works, from a locksmith team that has served Maricopa County since 2009. url: https://sundiallocksmith.com/window-lock-installation-a-small-upgrade-with-a-big-security-impact date_modified: 2026-09-30 author: language: en_US --- Here’s something I tell every homeowner I visit: your doors might be solid, but if your windows are running on original factory latches, you’ve left the back door wide open — figuratively and literally. is one of those upgrades that takes less than an afternoon and quietly changes how safe your home feels. I’m Josh, and after a decade working with , I’ve seen this small step make a real difference — especially in neighborhoods around where single-story homes and older window frames are the norm. --- ## Myth 1: “My Windows Already Have Locks — I’m Covered” ### The common belief ![Close-up view of a matte black door knob and deadbolt lock installed on a white interior door with strike plates visible on the door frame.](https://sundiallocksmith.com/wp-content/uploads/2026/06/Sundial-Locksmith0753-768x1024.jpg "Window Lock Installation: A Small Upgrade with a Big Security Impact") Factory window latches count as locks. If the window closes and latches, it’s secure enough. ### What actually happens ![A matte black deadbolt and lever door handle set installed on a white interior door.](https://sundiallocksmith.com/wp-content/uploads/2026/06/Sundial-Locksmith0752-768x1024.jpg "Window Lock Installation: A Small Upgrade with a Big Security Impact") Most original latches are designed to keep the window closed — not to resist forced entry. A standard crescent latch on a double-hung window can flex open with simple lateral pressure. It takes seconds. Proper [residential window security locks](https://sundiallocksmith.com/services/residential-locksmith-services-in-phoenix-maricopa-county/) use a pin, bolt, or keyed mechanism that holds the sash firmly in place even under force. --- ## Myth 2: “Adding Locks to Windows Is a Big, Expensive Project” ### The common belief Adding locks to windows means drilling into frames, buying specialty hardware, and probably calling a contractor for a full day’s work. ### What actually happens Most window lock upgrades are straightforward same-day installs. A keyed sash lock, a sliding window pin lock, or a hinged wedge lock can be fitted to the majority of standard window types — aluminum sliders common in homes near Mill Avenue, wood doubles in older Tempe bungalows, or vinyl frames in newer builds. Costs typically range from $15–$60 per window in hardware, with professional installation time running well under an hour per window. You don’t need a remodel — you need the right hardware and a steady hand. --- ## Myth 3: “Window Security Is Less Important Than Door Security” ### The common belief Spend money on a good deadbolt and the windows can wait. Doors are where break-ins happen. ### What actually happens According to the [SafeWise/Alarms.org burglary research](https://www.alarms.org/burglary-statistics/), a significant share of residential break-ins happen through first-floor windows — precisely because homeowners invest in doors and overlook glass. A [Grade 1 deadbolt on your front door](https://sundiallocksmith.com/grade-1-deadbolt-installation-what-it-is-and-who-actually-needs-one/) is non-negotiable, but it means little if the window next to it lifts open with one hand. A layered approach — good doors AND secured windows — is what genuinely hardens a home. If you want to understand the full picture, our post on [whether burglars actually pick locks](https://sundiallocksmith.com/do-burglars-actually-pick-locks-the-truth-might-surprise-you/) is worth a read. --- ## Myth 4: “Any Lock Will Do — Brand Doesn’t Matter” ### The common belief A lock is a lock. Pick something off the hardware store shelf and you’re good. ### What actually happens Window lock quality varies enormously. Keyed pin locks and dual-bolt sash locks consistently outperform basic push-button latches. In ‘s climate — with summer heat causing frames to expand and contract — you also want hardware that won’t bind or corrode. The best home window security locks for our region are made from solid brass or zinc alloy, rated for temperature cycling, and simple enough that you’ll actually use them every day. If it’s fiddly, people stop locking it. Simplicity and durability matter as much as the security rating. --- ### The Verdict: A Window Security Upgrade Is the Smartest $50–$150 You’ll Spend This Year Good doors and strong window locks work together — neither replaces the other. If you live near Arizona State University, along Rural Road, or anywhere in the area with single-story construction, ground-floor windows are a priority worth addressing today, not next season. > “The best security upgrade is the one that actually gets used. Keep it simple, keep it solid, and make locking your windows a habit as automatic as locking your front door.” > > — Josh, - **Best for sliding windows:** Pin locks or Charlie bars — reliable, budget-friendly - **Best for double-hung windows:** Keyed sash locks — replace the factory latch directly - **Best for casement windows:** Hinged wedge locks or key-operated handles - **For rental properties or extra peace of mind:** Consider [restricted key systems](https://sundiallocksmith.com/restricted-keys-explained-how-they-stop-unauthorized-copies/) so copies can’t be made without your authorization Ready to get your windows handled the right way? Call at for same-day window lock installation across , and surrounding Maricopa County communities. Our team shows up with the right hardware and gets it done — no guesswork, no callbacks. [Call for a Same-Day Quote](tel:(480) 525-7778)