I’ve been doing Grade 1 Deadbolt Installation across Tempe, AZ and the surrounding Valley for a decade, and the same question keeps coming up: “Do I actually need a Grade 1, or is that overkill for my house?” It’s a fair question. Let me give you a straight answer — no upsell, no filler.
What “Grade 1” Actually Means
The American National Standards Institute (ANSI) rates deadbolts on a three-tier scale. Grade 3 is builder-grade — fine for an interior door, not much else. Grade 2 handles light residential use. Grade 1 is the top tier: it’s what ANSI calls commercial-grade, built to survive 250,000 open-close cycles, a 10-strike kick test at 75 pounds of force, and a 150-pound door-pull test. When someone asks what is a commercial grade lock, this is the answer — and it’s available for residential doors too.
For a deeper look at how the underlying hardware ratings affect your steel entry door, check out our guide on the best locks for a steel entry door. The short version: the bolt throw length, strike plate depth, and housing material all matter as much as the grade label.
Who in Tempe, AZ Actually Benefits From One

If you live near Mill Avenue or along Apache Boulevard in Tempe, AZ, you already know foot traffic around here doesn’t sleep early. That matters for door security. Here’s who we consistently recommend a Grade 1 ANSI deadbolt to:
- Homeowners who’ve had a break-in attempt nearby — a reinforced Grade 1 bolt with a 1-inch throw and a steel-reinforced strike plate closes the gap a standard lock leaves open.
- Landlords and property owners — especially after a tenant moves out. Pair a Grade 1 deadbolt with a professional rekey to reset access completely without buying new hardware.
- Anyone who just moved in — you genuinely don’t know who had a key before you. Upgrading to a Grade 1 on move-in day is one of the cleanest security decisions you can make.
- Homeowners dealing with a separation or a former roommate situation — if someone you no longer trust has a copy of your key, read our post on rekeying after a divorce or separation. A Grade 1 upgrade at the same appointment makes sense.
A Grade 1 deadbolt isn’t about paranoia — it’s about making the path of least resistance lead away from your door.
What the Installation Actually Looks Like

Most existing door preps accept a Grade 1 deadbolt without modification — same 2-1/8″ bore, same 1″ backset standard. The difference is in the strike plate. A Grade 1 install done right uses a box strike with 3-inch screws that anchor into the door frame’s structural stud, not just the soft pine jamb. That one detail is what separates a lock that holds from one that doesn’t when someone tests it hard.
The whole job typically runs 30–45 minutes per door for a clean install. Pricing across Tempe, AZ varies by brand and whether you’re supplying the hardware or having us source it, but expect to budget somewhere in the $80–$180 range for labor depending on scope — multi-door installs usually come in at a better per-door cost. We’ll give you an exact number before any work starts.
Want to go a step further? Pairing a Grade 1 deadbolt with a restricted key system means even if a key walks out the door, it can’t be copied at a hardware store. That combination is what we install for clients in Paradise Valley and Scottsdale’s gated communities who want real control over who has access.
The Best Deadbolt for Home Security Isn’t Always the Most Expensive One
Schlage B60N, Medeco Maxum, and Kwikset 980 are all solid ANSI Grade 1 options at different price points. What matters more than brand is proper installation — a premium deadbolt set in a weak frame with a shallow strike plate is still a weak door. The ANSI/BHMA certification database lets you verify any lock’s actual grade before you buy, which is worth a quick check.
We carry and install a curated range of Grade 1 hardware across Tempe, AZ, Tempe, AZ, Gilbert, Chandler, and the rest of Maricopa County. Our team at our Scottsdale location and across our service area has been doing this since 2009 — real storefront, multiple technicians, the right tools on every truck.
Picture walking up to your front door tonight, turning that key, and knowing the hardware behind it was installed right and built to last. That’s what a proper Grade 1 upgrade delivers — not anxiety, just quiet confidence every single time you lock up.
Ready to upgrade? Call Sundial Locksmith at (480) 525-7778 and we’ll get a technician to your door — no runaround, no surprises.
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.







