How to Install an Over-the-Range Microwave Yourself

Use your stud finder to locate the wall studs behind your oven range. Use a pencil to mark these locations so you know where to drill later.

Your microwave should come with a paper template that either sticks to the wall (with removable adhesives) or one that can be taped up using painter's tape. Align the spots on your mounting bracket to the studs in the wall and press it to the wall.

Use your power drill to put starter holes in place where the wall mounting bracket will come in contact with the studs. This is best done using auger bits, which typically come with a power drill kit when you buy it. 

Choose an auger bit that's slightly smaller than the screws that come with your microwave. This way, you won't drill a hole so big that the screw fits loosely in the hole. If you aren't sure, use a chart online to measure the screws your kit comes with.

Many over-the-range microwaves secure the top part of the microwave to a cabinet located above or to the side. This is where the cords and vent will run after installation.

Depending on your mounting situation, stick your paper template where it'll fit best in your kitchen. Clear out cabinets if needed to make space.

This step might not be needed depending on the model of microwave you choose. But most over-the-range microwaves, especially bigger ones, need a vent opening to channel exhaust either outside of your home or back into the room but away from the appliance. Without a vent, your microwave will be prone to overheating and may wear out faster. 

Cut the vent opening (this should be pre-measured for you on the sticky template in your cabinet) using either a jigsaw or reciprocal saw.

Line your mounting bracket up against the pilot holes you drilled into the marked stud points along the wall. Install your microwave's mounting bracket and drill them into the wall.

If you're installing a heavy microwave or have to use a ladder to hoist it over the oven, ask for help from a friend or family member before starting this step. Have someone support the bottom while you latch the backside over the mount and secure it into place.

Also, be sure the microwave's door is shut so it doesn't swing open during installation. Placing a piece of tape over the handle will ensure it doesn't open accidentally.

Once in place, screw in the bolts or hook the microwave onto the frame to secure it against the wall. If you're using bolts, be sure they are fastened all the way against the wall. Before removing your hands, be sure everything is lined up and in place. You can also drill a wood block at the bottom of the cabinet for the microwave to drill into in order to reduce stain on your cabinet overall, but keep in mind this will slightly lower the placement of your microwave.

In some cases, you can make a connection with the vent to your ductwork if it's installed above the oven already. It'll take some extra work, but make your life simple once you're done.

For this step you'll need caulk, tin snips, a power drill, metal screws, and a dust mask for safety. Mark the area you need to cut into, lining up your vent to get accurate dimensions. Cut a starter hole in the ductwork with a power drill to allow your tin snips to get in there. Fasten the vent to the ductwork using a power drill, then apply caulk around the edges to seal off the edges.

Reconnect the fan to your vent and run it through the cabinet if you had to dismantle it to connect to the ductwork.

Final step! With the microwave secured to the wall or cabinets and adequate ventilation set up, plug in the power cord and test your microwave.