Cost to Replace a Built-In Microwave

Microwave replacement cost by type

There are typically four styles of microwaves to choose from: built-in, countertop, drawer and over-the-range. Each type differs based on the microwave unit's location (e.g., above the oven or inside a kitchen cabinet).

Built-in

Built-in microwaves are installed into the kitchen cabinets, usually above a built-in oven. It frees up kitchen counter space, a plus for smaller kitchens with limited space to prepare food.

A drawback is that the kitchen cabinets must be configured for this type of microwave. If you don’t already have this setup, you may need to purchase new cabinets and reconfigure your kitchen area. Another drawback is that built-in microwaves are more difficult to repair. You may need to replace the entire unit if one component stops working. Built-in microwaves are also expensive, with prices ranging from $275 to $2,800.

Countertop

A countertop microwave is portable and can be placed on any available countertop space in the kitchen. It's typically smaller and uses less electricity than other types of microwaves. In addition, countertop microwaves are relatively inexpensive, with options available for under $100 and an average cost of around $150.

Though small, it still takes up much-needed counter space. You’ll also need additional clearance around the microwave so warm air can circulate out of the top and sides, which means it can’t be pressed against a wall to save space. It’s recommended to leave at least 3 inches on the top and sides, and 1 inch in the rear, for air clearance.

Drawer or under-cabinet

Drawer and built-in microwaves are good choices if you cook a lot and prefer to have a stronger range hood ventilation system.

Instead of an appliance that sits at or above eye level, a drawer microwave is usually installed below the countertop within the cabinets. A benefit is that it can be hidden, giving your kitchen a streamlined look. Also, it's easier for individuals with mobility issues to access.

However, there aren’t as many models of drawer microwaves available as there are for other types of microwaves. Some appliance stores may not even sell this particular type of microwave. In addition, you’ll pay a high price for this type of microwave. Most models start at around $880.

Over-the-range

An over-the-range microwave is mounted above the stovetop or oven unit. It features a ventilation fan that circulates air when you cook on the stove. You can choose from several sizes and styles of over-the-range microwaves, with many models costing between $120 and $1,200.

Keep in mind that you need at least 12 to 13 inches of clearance space between the microwave and the range below. Since the microwave is fixed to a cabinet above, this can limit the size of microwave you can purchase to account for that clearance space. Also, it may be more difficult to access the back burners of your stovetop with an over-the-range microwave directly above.

Microwave cost by brand

Some of the top-selling microwave brands today include GE, Whirlpool, Maytag, ZLINE, Frigidaire and LG. GE and ZLINE have a wide range of microwaves available at various price points. Pricier models include high-tech features like sensor cooking and LCD displays. Also, ZLINE offers microwaves with stainless steel interiors, which are easier to clean and promote more even cooking.

Whirlpool, Maytag, Frigidaire and LG offer more budget-friendly models. Typical features may include an interior turntable, a fingerprint-resistant exterior finish and multiple cooking power levels.

How to choose a microwave

When deciding between different microwave models, first consider how you plan to use yours each day and what features you need. Ron Shimek, president of Mr. Appliance, an appliance repair company, offered this advice: “Think about what you want to cook. If you are going to be heating leftovers, the cavity has to be big enough to fit a dinner plate and still be able to let the turntable spin.”

Also, think about where the microwave will be placed in the kitchen to determine any other features you may need. Regarding an over-the-range microwave specifically, Shimek said to ensure it has enough cubic feet per minute (CFMs) to meet your venting needs. If you do a lot of stovetop cooking, especially, you’ll need to ensure your unit has proper ventilation.

» COMPARE: Best microwave brands

Microwave cost by size, wattage and features

The cost to replace a microwave varies widely depending on the unit’s capacity, power output, features and installation needs. Here’s how these key factors influence microwave replacement costs:

• Size (cubic feet): Smaller countertop models (around 0.7 to 1 cubic feet) generally cost the least. Midsize and large units, especially over-the-range or built-in models, tend to be more expensive because they require stronger components and often support additional cooking modes.
• Wattage: Higher wattage usually means faster, more even heating. As wattage increases, so does cost, since more powerful units rely on larger magnetrons and more durable internal parts. Compact microwaves use 600 to 800 watt-hours (Wh), while standard models use 800 to 1,000 Wh.
• Smart features: Wi-Fi connectivity, voice control and app-based monitoring add convenience but raise the price due to additional sensors and integrated tech.
• Sensor cooking: Models with humidity or temperature sensors can automatically adjust cook times, improving results. These systems add complexity, which increases overall replacement cost.
• Convection capability: Microwave-convection hybrids can bake and roast in addition to reheating. Their heating elements, fans and expanded cooking modes place them at the higher end of the price range.
• Trim kits or installation accessories: Built-in and some over-the-range units may require trim kits, brackets or venting components. These add to the total cost, even if the microwave itself is midrange.

Additional microwave replacement costs

The cost of the microwave itself will make up the bulk of your costs, but if you need it professionally installed, you’ll need to budget some extra funds. Take a look at a few other costs that might need to be addressed.

Electrical work

You may need to update your electrical outlet to accommodate a new microwave model, especially if you live in an older home. Hiring an electrician to change an outlet could cost between $65 and $150. Installing a new outlet will cost you more, between $150 and $350, on average. Your electrician may even recommend an electrical panel upgrade, ranging from $800 to $2,000.

Venting

Some over-the-range microwaves are connected to ductwork that pushes air from the microwave to the outside. Installing new ductwork can get expensive, so expect to pay between $150 and $600.

Cabinet renovations

You may need to modify your kitchen cabinets if you choose a built-in or drawer microwave, especially if it’s a different type than you had before. It’s cheaper to change the cabinets you already have to fit a new microwave (costs range from $400 to $500) than to add new ones. Brand-new cabinets can cost upward of $500 or more per square foot.

Mounting kit

Mounting kits include brackets you can secure to a wall and mount an over-the-range microwave. You may not need to purchase a mounting kit separately, as most new microwave purchases include brackets. Mounting kits are relatively inexpensive, usually about $30 or less.

For deeper kitchen cabinets (with 14-, 15-, or 16-inch depths), you’ll also need a bump-out kit, which allows the microwave to sit flush with the edge of the cabinets. Bump-out kits are cheap, too, usually costing about $25.

Labor

You could pay a professional, like an appliance technician, between $108 and $190 to install a new microwave. Some appliance stores charge a flat fee for delivery and installation, which may cost $80 or more. Other stores may include installation for free on appliances above a certain price point, so be sure to ask about any additional perks.

Old microwave removal and disposal

Removing an old microwave can add a small extra cost, especially if the unit is built-in or over-the-range. Some retailers include haul-away service, while others charge a fee. Local waste rules may limit curbside pickup, so you might need to schedule a special collection or visit a recycling center. Ask your installer whether removal is included and check local recycling options to avoid unexpected charges.

Permit and inspection fees

Most microwave replacements don’t require permits, but upgrades involving new outlets, dedicated circuits or ductwork may. Permit fees vary by location and may include a brief inspection to confirm the work meets code. If your project involves electrical or venting changes, your electrician can confirm whether a permit is needed and estimate the added cost.

Microwave installation: DIY vs. pro

It’s possible to install a microwave yourself, especially if it’s a similar model to what you had before. For instance, replacing one over-the-range microwave with another of a similar size may be easier.

Shimek, the president of Mr. Appliance, offered some tips for a safe installation. “Tips include carefully following the manufacturer's instructions, ensuring proper ventilation and having the necessary tools and materials on hand,” he said.

In some cases, though, it may be best to hire a professional to install it for you. For example, if the electrical wiring needs to be changed or the cabinets need to be modified, leave those tasks to the experts.

It also makes sense if you’re switching to a new type, like going from a countertop to an over-the-range microwave. You’ll likely have to make modifications to the kitchen design, so it’s best to leave it to a professional.

Step-by-step installation process

Replacing a microwave safely involves a few key steps, whether you’re swapping out a countertop model or installing an over-the-range unit. If you encounter wiring issues, structural concerns or any steps outside your comfort zone, it’s best to hire a licensed technician.

1. Shut off the power: Unplug the existing microwave. For over-the-range or built-in models, turn off the circuit at the breaker to prevent accidental electrical contact during removal.
2. Remove the old microwave: Detach the mounting screws or brackets, then lift the microwave off its support plate or wall bracket. If the unit is vented, disconnect any ductwork carefully. Keep all hardware together in case you need it for the replacement.
3. Prepare the installation area: Clean the space, check for damage and confirm that the outlet, venting (if applicable) and mounting points are in the correct positions. Measure the opening to ensure the new microwave fits properly. If electrical work, ducting adjustments or cabinet modifications are required, stop here and contact a professional.
4. Install the mounting hardware: Follow the manufacturer’s template to place brackets or a mounting plate. Use appropriate wall anchors or studs for secure support. Double-check alignment before tightening anything fully.
5. Mount the new microwave: Lift the microwave into position; two people are recommended for over-the-range units. Slide it onto the bracket and secure it with the top mounting screws. Connect any venting components if your model requires it.
6. Plug in and test: Restore power, then test basic functions, lighting and vent fan operation. Listen for unusual noises and make sure the unit sits level and flush.

Do home warranties cover built-in microwaves?

Built-in microwaves are usually covered by a home warranty, but check your individual plan for specific details. This may include replacements or repairs for all parts of the microwave unit, including the control panel and exhaust fan.

Countertop microwaves aren’t covered by home warranties, so if yours breaks, check whether it's still under a manufacturer’s warranty. The company may offer a full one-year warranty (covering replacement, parts, and/or labor) and a limited seven-year warranty (covering only parts).

It’s important to carefully read your contract. Reviewer Sijan from Virginia told us: “Called to put in a claim for [a] microwave. The rep said my warranty only covers the microwave if it is attached to a wall. My question - What difference does it make if the microwave is attached to the wall or not?” By understanding what’s covered, you can save money and frustration when making claims.

» MORE: Does a home warranty cover microwaves?

Bottom line

Built-in and drawer microwaves tend to cost more than over-the-range and countertop microwaves. They may also be more difficult and expensive to install, especially if electrical wiring needs to be updated.

Research the electrical and venting requirements for any new microwave you’re considering. This can help you determine the overall costs for both a new unit and installation.