Chamberlain B750 Garage Door Opener

A Powerful Garage Door Opener You Control With a Smartphone

The Chamberlain B750 is an ultra-quiet belt drive garage opener with extra power for heavier lifting. Smartphone access allows for remote monitoring and control.

The complete description of this model and review details are below, including technical specifications and FAQs.

Here is what we think of this excellent garage door opener in a quick summary review.

  1. The opener is smooth and quiet, ideal for garages next to or beneath living space.
  2. A DC-powered motor is efficient and has the lifting capacity of a 3/4 HP AC motor, suitable for most single and double garage doors.
  3. It’s safe and secure with anti-theft technology.
  4. You can conveniently control it with your smartphone using the free Chamberlain MyQ App.
  5. The included wall control (inside) has a motion-sensing light control, timer-to-close feature, and lock-out button.
  6. It comes well equipped with 2 remotes and a wireless outdoor keypad for easy garage access even if you don't have your remote.

Star Rating Based on over 220 actual reviews from Home Depot and

  • product overview
  • tech specs
  • reviews
  • manual
  • FAQ

From the Manufacturer:

The Chamberlain B750 features an ultra-quiet, extra strong steel-reinforced belt drive for stability and smart technology that gives you complete control of your garage. With the Chamberlain MyQ App, you can get real-time alerts, open, close, and know the status of your garage door. The notifications are sent directly to your phone where you gain full access of your garage door and more—from anywhere.

From Garage How To:

If you need a quiet, strong garage door opener, the Chamberlain B750 is a solid choice. This model is powered by a quiet, energy-efficient DC motor with the lifting equivalent of a 3/4 HP AC motor.

Most modern garage door openers are using DC motors to not only save energy, but to put more power in a smaller package. They are also very quite.

Relatively Easy Installation

Unless you have a non-standard, high-ceiling garage, everything you need for installation on a 7 foot tall garage door is included. It is a very nice device that can do a lot more relative to its size. Set up, programming, and connection to WiFi is pretty straight forward. If you feel like you're in over your head on the technical stuff, ask a 14 year old!

If you aren't reusing mounting hardware from the opener you are replacing, count on 3-4 hours for installation and programming. SMART TIP: Getting help from a friend or family member makes for easier installation.

Convenient and Efficient

The opener uses the Chamberlain’s MyQ mobile app that communicates directly with your Android or iOS device (phone or tablet). This means you can monitor, open or close your garage door from anywhere you have an internet connection. Think you left the garage door open? Just check your MyQ app and close the door if necessary.

NOTE: As of February 2018, the MyQ app does not offer multi-user support. In other words, if you want two people to have access via their smartphone, you must share the same login credentials. 

Homelink Compatible

If your vehicle is equipped with the Homelink system, you may be able to program the built-in buttons to open your garage door without a remote. Some vehicles require Chamberlain's compatibility bridge to work properly.  Go here to learn more.

Works With 7, 8 and 10 Foot Tall Garage Doors

Out of the box, the Chamberlain B750 works with 7 foot tall garage doors. For taller garage doors, you need to purchase and install the 8 foot or 10 foot rail extension kit.

Note: If you are just building your garage and have the opportunity to use an 8 foot tall garage door, do it. Especially if you have a larger SUV, or you think there is the possibility that someone, at some time in the future, may buy your house.

Bottom Line: The Chamberlain B750 is an easy-to-install, very quiet, powerful and reliable garage door opener you can control from anywhere in the world via Chamberlain's MyQ smartphone app. If you wish to see more technical details, please click the Tech Specs tab.

What's included:

  • Garage Door Opener
  • Full function wall control
  • Key-less entry keypad
  • 7 Foot Rail Kit. 
  • Two 3-button remotes
  • Safety sensors
  • Transmitters
  • Connectors

What's not included:​

  • Rail extensions 

About the Author Pat Easterbrooks

Pat Easterbrooks is the founder and Chief Enthusiast at If you want the extended "about" version (the one that makes his wife wince), go here.