DIY: How to Install a Wall Oven Easily

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Last Updated on July 13, 2021

A long-time contributor to SeriouslySmoked. Jim has had a lifelong relationship with the art of grilling, passed on from his father and grandfather to him.  

A long-time contributor to SeriouslySmoked. Jim has had a lifelong relationship with the art of grilling, passed on from his father and grandfather to him.  

how to install a wall oven

Wall ovens are a great addition to a kitchen. They allow you to have more cabinet space, or storage under your stove. But what happens if your wall oven dies and you need a new one? Do you pay for installation or do you do the work yourself? 

If you’re the do-it-yourselfer, you’ll want to tackle this task and we are here to help you get started. In this article we are going to look at the types of wall ovens, required tools and a step-by-step guide on how to install your new wall oven. 

Some Cautions Before We Start: If you’re not just replacing your wall oven, and this is a new installation, make sure you hire a licensed electrician to complete the necessary electrical work. 

Below are the some other cautions you will have to address when replacing a preexisting wall oven:

  • Know local electrical and building code requirements.
  • Turn off the circuit breaker.
  • Use an electrical tester to confirm that the circuit is off.
  • Consult with a plumber when making connections to natural gas.

If you’re not familiar with electrical work, plumbing for natural gas, or local building codes, please hire licensed electricians and plumbers to assist you.

The last thing you want is an electrical or natural gas issue after the work has been completed!

3 Types of Wall Ovens

kitchen

1. Single Wall Ovens

These are pretty basic when it comes to wall ovens. It’s a single compartment oven, and looks a lot like the oven under your stove, but’s mounted on the wall. 

These are great for smaller spaces, and give your kitchen more storage space under the range surface.

2. Double Wall Ovens

If you’ve got more space to work with you will really love the double wall oven. With two compartments that are separately controlled, you have more versatility and flexibility when cooking. 

Lots of double ovens also have features like convection, dehydrating and broiling settings for even more flexibility.

3. Triple Wall Ovens

Triple wall ovens are more like a multi-function appliance. Not only do you get the benefit of two separate ovens, but triple wall ovens also often have an included microwave and warming drawer. 

You’ll need a bit more space for this appliance but, if at the moment you don’t have the room then you need to find creative ways to find kitchen space. Triple wall ovens are well worth the investment due to the variety of features they provide.

Tools Required to Install a Wall Oven

If you have decided to install a wall oven yourself, you’re going to need a few basic tools to complete the job. Below is a list of tools which will prove handy to your rescue and use:

  • Tape measure
  • Non-contact electrical tester
  • Reciprocating saw
  • Screwdriver
  • A Junction box wire clamp
  • Good wire strippers
  • Enough Wire nuts
  • Power drill with a screw tip
  • Drill bit, 1/8-inch
  • Thread seal tape
  • An Adjustable wrench
  • Liquid leak detector

9 Simple Steps to Install a Wall Oven

First, it’s very important to measure the opening in the cabinet and compare it to your new oven’s dimensions. In certain cases, you may need to create a larger opening.

1

Turn off the power from the circuit breaker. This will ensure a safe working environment. We recommend taping the switch on the breaker panel, to prevent it from being turned on accidentally.

2

Next, remove the doors of the old oven and set them out of the way

3

Remove the existing anchoring screws, then cautiously lift or slide the current oven out of the space. You may require help with this.

4

Cut or disconnect the electrical wires for the old oven. Most wall installed ovens will have a junction box behind the appliance. You’ll be able to separate the electrical at this location.


If you need to cut the wires, use wire strippers or wire cutters. If you must cut the wires to disconnect the oven power, cut as close to the oven side as possible. If the source wires are cut too short you may have issues connecting the power to the new oven.

5

Measure the opening in the cabinet and compare with the required dimensions listed in the installation instructions. If the space is wider than necessary, mark the cabinet space so that there is even distance on both sides of the cabinet.


If the space does happen to be smaller than necessary for the oven you’ve selected, you may need to consult with a cabinetry professional or remove some cabinets to make the installation work. However, we do recommend that you measure the space before you purchase your new wall oven.

6

Connect the electrical wires for the new oven to the source wires in the wall. You will need to place the new oven as close to the opening in the cabinet as possible, without limiting your ability to work in the space efficiently.


Clamp any extra wire to the wall or back of the oven, to keep it out of the way. If you are not comfortable making these connections, do consider hiring an electrician to help.

7

Replace the cover on the junction box at the wall. Make certain that the cover fits securely and that there are no gaps, and that it sits flat. This will help your oven fit snugly in the space.


If you installed new electrical for this oven, make sure that you also repair the wall around the junction box to provide additional support and a clean finish to the work.

8

Lift the oven up and slide it into the cabinet and secure it with the provided screws. You may require help with this.

9

Finally, you can affix the new oven doors and install any provided trimming, then turn the circuit breaker back on.


Jim Bob

Author: Jim Bob

Final Thoughts

Installing a new wall oven can be a daunting task. If you are knowledgeable enough then it’s not a complicated job but does require some skills. 

If you follow the manufacturers recommendations, practice good safety protocols and double check all your work, you should be cooking up meals in no time.

Most importantly, take your time and head the cautions we discussed at the top of this article.