10 Best Waterproof Door Lock 2025 in the United States

The iulock Smart Door Knob is a solid choice for anyone looking for a convenient, secure, and weather-resistant door lock, especially for interior and exterior residential use. It features a keypad that can store up to 50 unique codes, which is great for families or rental properties where multiple users need access. The lock supports keyless entry but also comes with traditional keys, offering flexibility. The metal construction with a matte finish and rubber grip makes the knob both sturdy and comfortable to use, while the IP65 waterproof rating means it can withstand rain, dust, and extreme temperatures from -22°F to 176°F. This makes it suitable for front doors, backdoors, bedrooms, and even commercial spaces.

Installation is fairly straightforward, requiring only a screwdriver, and it fits a wide range of door thicknesses. The keypad is backlit and easy to use in the dark, with added features like silent mode and a passage mode for times when you want the door unlocked. Power comes from four AAA batteries that can last up to 18 months, plus a USB backup option in case the batteries die. However, it does require periodic battery replacement, and while the lock is sturdy, the security level is best suited for typical home or office needs rather than high-security environments.

The included 4-pack with same-key cylinders is convenient if you want uniform keys for multiple doors. This lock balances smart features, durability, and ease of use, making it a practical option for anyone needing a waterproof, keyless door lock without complicated installation or setup.

The eufy Security Smart Lock C220 is a stylish deadbolt with a matching handleset, designed to give your front door a clean, cohesive look. It’s built with an IP53 waterproof rating, making it resistant to light rain and dust, suitable for most covered outdoor entrances but not meant for heavy water exposure. The lock features multiple ways to unlock your door: fingerprint recognition that learns over time for quick access, an app with built-in Wi-Fi for remote control, keypad, physical key, and voice commands through Alexa or Google Assistant. This flexibility is great for families or anyone wanting convenient entry options.

Installation is user-friendly, requiring about 15 minutes and no drilling, fitting most standard doors in the US and Canada. Security-wise, this is a BHMA-certified deadbolt, giving you reliable protection. It runs on 8 AA alkaline batteries, included, and can last up to 8 months depending on use, which means fewer battery changes but keep an eye on notifications for low battery. One thing to note is the IP53 rating means it’s not fully waterproof, so if your door faces harsh weather without cover, you might want to consider a lock with a higher waterproof rating.

This smart lock is well suited for homeowners looking for modern features, easy installation, and solid security with decent weather resistance for typical front door use.

The eufy FamiLock E34 is a smart, waterproof door lock designed to offer secure and convenient keyless entry. It meets the IP65 waterproof rating, meaning it can handle rain and dust well, making it suitable for outdoor front doors. The lock is made with durable materials, suitable for frequent use and exposure to elements. Its standout feature is the palm vein recognition, which offers a very high level of security by scanning the unique pattern of your palm veins, unlocking quickly and with near-perfect accuracy. This biometric system keeps your privacy safe by storing data locally on the lock, not in the cloud.

The locking mechanism is a Wi-Fi keypad deadbolt rated ANSI/BHMA Grade 1, indicating strong security and reliability. You can control the lock remotely via built-in Wi-Fi without needing an extra hub, and it integrates smoothly with popular smart home systems like Apple Home, Google Home, and Alexa.

Installation is DIY-friendly and designed to fit standard doors in the US and Canada without drilling, which should make setup straightforward for most users. The lock runs on a large rechargeable lithium battery lasting about 8 months, with a smaller backup battery inside to keep it working during power issues—this dual power system adds reliability. Its weight of about 3.7 pounds is heavier than some traditional locks and might require a sturdy door. While there are no monthly fees, the smart features depend on your Wi-Fi and smart home setup, which could be a consideration if your internet is unstable. This lock suits users seeking advanced security with biometric access, reliable outdoor use, and modern smart home integration in an easy-to-install design, though it may be more advanced than necessary for those preferring a simple mechanical lock.