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How to Replace an Over the Range Microwave

Looking to replace an old microwave situated above your range? This comprehensive guide will walk you through all the necessary steps of replacing your over-the-range microwave.

Getting Started

Most likely, you chose an over the range microwave because of its sleek, built-in look and functionality. Getting the microwave off the counter means more workspace in your kitchen coupled with a cleaner, more custom look. But all of these features come with the compromise of adaptability. Building the microwave into the cabinets makes it harder to move around or replace, but that shouldn't stop you from upgrading to a new model when it's time.
How To: Install An Over the Range Microwave Video
How To: Install An Over the Range Microwave
How To: Install An Over the Range Microwave Video How To: Install An Over the Range Microwave Video
Still have a question?
In fact, it's easier than you might imagine to replace an over the range microwave and, for most people, it doesn't even require the help of a professional. Reference our step-by-step guide below to swap out your old style for a brand-new one to give your kitchen a quick but substantial upgrade.
  1. Measure Your Current Microwave—The first step in the replacement process is measuring your current setup so you know which size to buy. Generally, over the range microwaves measure 29 to 30 inches wide with a depth of 15 to 16 inches, but height can vary, so make sure to get an accurate measurement before buying a new built-in microwave.
  2. Pick Your New Unit—Now that you have the measurements of your existing configuration, use them to select a new microwave. For the easiest possible installation, you should buy an over the range microwave with a trim kit. Remember, standard models are not designed to be mounted. Consider picking a microwave with some of the more coveted, modern features, like convection modes and fast cooking times. Some top microwave brands to look for include Whirlpool, GE, Frigidaire and KitchenAid.
  3. Unscrew the Microwave—Typically, the existing microwave will be attached to the cabinets via a series of screws on the bottom of the cabinet above it. With an extra set of hands to help you balance the microwave once it's unscrewed, remove the screws and the microwave. You'll also want to remove the existing mounting bracket, assuming that it won't fit the new model you plan to install.
    Man Replacing Over the Range Microwave
  4. Install the New Bracket—The new microwave will come with its own purpose-built bracket or trim kit that's used to keep it securely attached to the wall. Making sure the bracket is properly centered and flush to the bottom of the cabinet, mark the holes where you'll place the screws. Following the instructions on the new microwave, screw the new bracket into place using included anchors or (if possible) a stud in the wall.
  5. (If Needed) Install the Filters—One of the great things about choosing this type of microwave is that it can be used as a hood vent over your range, serving as two appliances in one. If you've selected a microwave-hood combo (sometimes called a "micro-hood"), now's the time to install the venting into the bottom of the microwave. At this point, you'll also want to install any filters provided by the manufacturer.
  6. Hang the New Microwave—Before you hang the microwave, make sure that there's a hole in the bottom of the cabinet for the appliance's electrical cord. Now, all there is to do is angle the microwave up and attach it to the bracket. Finally, use a drill to tighten up all the screws and then plug in your microwave. It should now be ready to use!
    Clean Kitchen With Over the Range Microwave

Q&A Summary

How to Replace Over-The-Range Microwaves?

Unscrew the existing model from your cabinetry, then install the new bracket or trim kit that comes with your new over-the-range microwave. Install filtration devices if necessary, then hang your new version ensuring that there's a hole that leads through your cabinet to allow for any electrical cords. Finally, attach to your new bracket or trim kit. For detailed instructions, review our complete guide.

What Tools Do I Need To Install A Microhood?

When installing, you'll likely need a common drill, a tape measure, a screwdriver and an extra set of hands. Always check your manual, though. More intensive jobs may call for a level and eye protection like goggles.

A Guide to Venting an Over-The-Range Microwave

If your microwave doubles as a smoke and grease remover as you cook on the range below, you'll need to do a bit of extra work to ensure your venting or filters are installed correctly. Installing the filters is relatively easy. When it comes to ducting, always make sure to follow the directions in your manual, but as a general rule you'll need to connect the duct before and as you install if your microwave acts as a range hood. Make sure you connect your damper correctly as well. If you're not sure the connection is correctly made to the rear or top of your device, give our team a call at 800-860-3577 and we'll help you to properly install it.

Pay Attention to the Manufacturer's Instructions

Note that these instructions do not apply to every single over the range microwave and that installation may differ from brand to brand or model to model. Generally, the manufacturer will provide detailed instructions on how to install the microwave, and it's important that you closely follow these instructions for the best possible result.

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