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. Window Lock Installation 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 Sundial Locksmith, I’ve seen this small step make a real difference — especially in neighborhoods around Tempe, AZ where single-story homes and older window frames are the norm.
Myth 1: “My Windows Already Have Locks — I’m Covered”
The common belief

Factory window latches count as locks. If the window closes and latches, it’s secure enough.
What actually happens

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 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 Tempe, AZ 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, 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 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 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 Phoenix‘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 Tempe, AZ 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, Sundial Locksmith
- 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 so copies can’t be made without your authorization
Ready to get your windows handled the right way? Call Sundial Locksmith at (480) 525-7778 for same-day window lock installation across Phoenix, AZ and surrounding Maricopa County communities. Our team shows up with the right hardware and gets it done — no guesswork, no callbacks.
Some content on this site is AI-assisted and may not reflect exact current details — please verify with Sundial Locksmith at (480) 525-7778. Learn more.






