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Most Phoenix homes ship from the builder with Grade 3 deadbolts — the lowest ANSI classification, with a ½-inch bolt throw, no hardened steel inserts, and strike plates secured by ¾-inch screws that anchor into casing wood rather than framing. These locks satisfy the minimum code requirement but provide minimal resistance against a determined forced entry. Upgrading to an ANSI Grade 1 deadbolt with a reinforced strike plate is the single highest-impact security improvement per dollar for any Phoenix home.
Our Phoenix residential locksmith team installs, upgrades, and rekeyes deadbolts across all Phoenix neighborhoods. We carry Schlage B-series, Kwikset 980, and Baldwin hardware on our service vehicles for same-day installation. You can find us on Google Maps and read reviews from homeowners who’ve upgraded their security hardware through us.
If you’re moving into a new home, rekeying or replacing deadbolts on day one is non-negotiable — you have no way of knowing how many copies of the previous owner’s key exist. If the existing hardware is builder-grade, replacement rather than rekeying gives you a security upgrade in the same visit. Our Phoenix team handles both rekeying and full hardware replacement and can tell you on-site whether your current locks are worth keeping or worth replacing.
Deadbolt Grade Comparison: What You’re Getting in Each Tier
| Grade | Bolt Throw | Strike Plate | Kick Resistance | Typical Brand |
|---|---|---|---|---|
| ANSI Grade 1 | 1 inch | Reinforced box strike — 3″ screws into framing | 250 lbs+ (10 strikes standard) | Schlage B60N, Kwikset 980, Baldwin Prestige |
| ANSI Grade 2 | ¾ inch | Standard — ¾” to 1″ screws | 150 lbs (5 strikes standard) | Schlage B40N, Kwikset 660 |
| ANSI Grade 3 | ½ inch | Flat strike — ¾” screws into casing only | 75–100 lbs (1–2 strikes) | Kwikset 200, most builder hardware |
| High-Security | 1 inch + hardened insert | Anti-saw bolt, armored strike | Exceeds Grade 1 by significant margin | Schlage Primus, Medeco, Mul-T-Lock |
Why Builder-Grade Deadbolts Fail in Phoenix
Beyond the obvious security limitations, Grade 3 deadbolts have a second problem in Phoenix’s climate: their shorter bolt throw and looser cylinder tolerances make them more susceptible to thermal expansion issues. When an aluminum door frame expands in summer heat, the strike plate opening shifts slightly. A Grade 1 bolt with a full 1-inch throw has more margin to engage the strike plate even with minor frame movement. A Grade 3 bolt with only ½-inch throw can end up partially engaged or binding, creating both security and operational issues.
The pin tumbler cylinders in builder-grade hardware also use standard key profiles (KW1 for Kwikset, SC1 for Schlage) that are widely available for key duplication at hardware stores and kiosks. High-security cylinders use restricted keyways — keys can only be duplicated by an authorized dealer, and a copy requires proof of ownership. For homes with cleaners, contractors, or property managers with key access, restricted keyways are worth the upgrade cost.
Arizona’s UV exposure degrades the rubber dust covers on deadbolt cylinders faster than in most other states, allowing fine desert particulate to work into the pin tumbler stack over time. The cylinder drag this causes is often mistaken for a key issue — the keys haven’t changed, but the lock is stiff. Periodic cleaning and lubrication with dry graphite (never WD-40 on a pin tumbler) extends cylinder life significantly.
Deadbolt Installation Cost in Phoenix
A single Grade 1 deadbolt installation by a licensed locksmith — including hardware, installation, and keying — runs $120–$165 per door. Multi-door discounts apply when replacing all exterior locks in a single visit; four doors typically run $380–$460 total. High-security cylinders (Schlage Primus, Mul-T-Lock) add $60–$100 per lock due to the hardware cost premium.
The question of rekey versus replace comes down to hardware condition and age. Hardware under 5 years old in good condition is worth rekeying — $25–$45 per cylinder, same level of security for the new occupant. Hardware that’s builder-grade, worn, or over 10 years old is worth replacing — the labor cost is similar and you get a meaningful security upgrade in the same visit. Call (602) 830-6240 and we’ll give you an honest assessment before any work begins.
What is the difference between a Grade 1 and Grade 2 deadbolt?
Grade 1 is the highest residential security rating from ANSI/BHMA. It requires the lock to withstand 250,000 open/close cycles and 10 strikes of a 75-lb weight. Grade 2 is rated for 150,000 cycles and 5 strikes. For front doors in Phoenix, Grade 1 deadbolts such as Schlage B60N or Kwikset 980 are recommended.
Should I rekey my new home’s deadbolts in Phoenix?
Yes. When moving into a new home, the previous owners, real estate agents, and contractors may all have copies of the current keys. Rekeying all entry point deadbolts is the most cost-effective way to ensure only you have access. A1 Affordable Locksmith rekeying visits typically run under $100 for a standard home.
How do I know if my existing deadbolt needs to be replaced vs. rekeyed?
Rekeying is sufficient if the lock body is in good physical condition and you simply want to change who has access. Replacement is recommended if the lock is old, damaged, worn, or if you want to upgrade to a higher security grade or smart lock capability.
Can a deadbolt be installed on any door?
Most standard residential doors are pre-drilled with a 2-1/8″ cross bore and either a 2-3/8″ or 2-3/4″ backset, making them compatible with standard deadbolts. Older doors, custom doors, or doors without existing prep may require boring or modification before installation.
What is the best deadbolt for a Phoenix home?
For standard residential use, Schlage B60N or Kwikset 980 Single Cylinder Deadbolts are excellent ANSI Grade 1 options. For higher security, the Medeco Maxum or Mul-T-Lock offers pick resistance and key control. For a smart option, the Schlage Encode combines Grade 1 physical security with a built-in keypad.
How long does deadbolt installation take?
A standard deadbolt installation on a pre-drilled door takes 15 to 30 minutes. If boring new holes is required or if an old lock is corroded and difficult to remove, allow 45 to 60 minutes. A1 Affordable Locksmith provides same-day installation service throughout Phoenix.
Can I get all exterior locks on my home rekeyed to the same key?
Yes. Keying alike is a standard service where all deadbolts and entry locks on a property are rekeyed to work with one master key. This eliminates the need to carry multiple keys. A1 Affordable Locksmith can key alike up to 6 locks on a typical home during a single service call.
Does A1 Affordable Locksmith carry deadbolts on the service vehicle?
Yes. A1 technicians stock a selection of Schlage, Kwikset, and entry-level Defiant deadbolts in single- and double-cylinder configurations. If you need a specialty brand or finish, a short lead time may apply, but most standard installations can be completed same day.
The Right Next Step
Builder-grade deadbolts are the most common security gap in Phoenix homes — and the most cost-effective to fix. A same-day visit covers hardware assessment, installation of Grade 1 deadbolts on all exterior doors, strike plate reinforcement, and keying to a single key for the whole home if desired.
Call (602) 830-6240 to schedule. We serve all Phoenix neighborhoods with same-day availability on most days. Full residential service details are at our Phoenix residential locksmith page, or reach us through the contact page.
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Written by the team at
Affordable Locksmith — Phoenix & Scottsdale
Licensed & insured 24/7 mobile locksmiths serving Phoenix and Scottsdale. Automotive, residential, commercial and emergency service — car keys, rekeys, lockouts and security upgrades.
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