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Retrofit Door Lock

The simplest way to make your lock smart.

What is a retrofit smart lock?

A retrofit smart lock is the simplest and quickest way to make your lock smart and boost your door’s security. Our Smart Locks attach to your existing deadbolt on the inside 
of your door, leaving the outside untouched. It installs easily under 10 minutes—just unscrew the inside thumb turn, attach the mounting plate, and add your August Smart Lock. All you need is a screwdriver.

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Works with Existing Deadbolt
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Automatically Locks & Unlocks
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Keyless Entry
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Keeps Facade the Same
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Easy Installation

You’re 10 minutes away from a Smart Home.

Setting up our retrofit smart locks takes less time than getting ready in the morning and can be done by anyone in four easy steps. All you need is a Phillips screwdriver and a compatible deadbolt; everything else is included with your Smart Lock. 

Setting up our retrofit smart locks takes less time than getting ready in the morning and can be done by anyone in four easy steps. All you need is a Phillips screwdriver and a compatible deadbolt; everything else is included with your Smart Lock. 

Man unlocking his door with the August app
The easiest way to make your lock smart.
Man unlocking his door with the August app

Hands full with a million things? Just walk up to the door and your August Smart Lock will Auto-Unlock using your phone’s bluetooth. The same goes for running out—your door will automatically lock behind you, offering ultimate efficiency.

Woman installing her August smart lock
Works with your current lock.
Woman installing her August smart lock

Our retrofit smart locks work with your existing deadbolt, which makes them ideal for both homeowners who want a quick installation process and renters who can’t change their locks. Keep your keys or not! It’s up to you.

A front door with a camera monitoring
Keep your front door aesthetic
A front door with a camera monitoring

August Smart Locks are installed on the inside of your door and come in two sleek finishes to fit any decor style without changing the exterior of your door. There’s no need for an entryway makeover—unless you want it.

Smart Locks designed for your life

Whether you need a smart lock that goes over your deadbolt or a brand new front door experience, August has the right lock for you.

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The Perfect Renter-Friendly Solution

Retrofit Smart Locks attach to the inside of your door and work with your existing deadbolt, making it a smart solution for renters who want to upgrade their door while still keeping their current locking mechanism. With a retrofit lock, the outside of your door remains unchanged so you will never have to worry about losing your deposit.

The side view of a silver august lock on a door with a key in the lock
The Complete Door Makeover

A full replacement lock sits on both the interior and exterior sides of your door and changes your entire deadbolt and keyway. This requires a more involved installation process, but the keys are literally in your hands on how you want to style your door on the inside and out.

Recommended Retrofit Smart Locks

A quick and easy way to modernize access to your home without changing your keys.
August Wi-Fi Smart Lock Silver
Wi-Fi Smart Lock
$199.99
Our most compact and advanced smart lock with remote access, keyless entry, and more.
Silver
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August Smart Lock + Connect Satin Nickel
Smart Lock + Connect
$199.99
Secure, key-free entry for seamless smart home entry.
Satin Nickel
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Yale Approach™ Lock with Wi-Fi Silver
Yale Approach™ Lock with Wi-Fi
$129.99
Newest, most affordable smart lock is now slimmer without losing essential smarts.
Silver
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Frequently asked questions

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