A built-in microwave can make a kitchen look calmer, cleaner, and considerably more expensiveeven when dinner is still last night’s pizza. Unlike a countertop model, a built-in microwave fits into cabinetry, beneath a counter, or above a wall oven, freeing valuable workspace and creating a more intentional design.
The best built-in microwaves of 2025 go beyond attractive stainless-steel fronts. Depending on the model, you can get sensor cooking, convection baking, air frying, automatic defrosting, app controls, or a drawer that opens below the counter. The difficult part is determining which features will improve your daily routine and which ones will quietly collect digital dust.
This guide compares standout traditional microwaves, drawer models, and premium speed ovens. It also explains capacity, wattage, trim kits, installation requirements, and the real-world ownership details that product photos tend to leave out.
How We Chose the Best Built-In Microwaves for 2025
Our selections were based on manufacturer specifications, installation documentation, appliance-testing methods, expert reviews, and recurring owner feedback. We prioritized heating performance, interior capacity, control simplicity, sensor accuracy, installation flexibility, cleaning, and long-term practicality. Microwave testing organizations commonly evaluate tasks such as reheating leftovers, defrosting meat, melting ingredients, and popping popcorn because these reveal differences in heating speed and consistency.
We also distinguished between a genuine built-in appliance and a countertop microwave placed behind a decorative frame. Both approaches can look integrated, but they do not necessarily use the same ventilation system or installation hardware. A trim kit must be approved for the exact microwave model; a frame that merely “looks about right” is not a safe substitute.
Best Built-In Microwaves of 2025 at a Glance
| Model | Best For | Capacity | Key Advantage |
|---|---|---|---|
| KitchenAid KMBS104ESS | Best overall | 1.4 cu. ft. | Balanced performance and true built-in styling |
| Frigidaire Gallery GMBS3068AF | Best value | 2.2 cu. ft. | Large interior and sensor cooking |
| LG MZBZ1715S | Best premium speed oven | 1.7 cu. ft. | Microwave, convection, air fry, and smart features |
| Sharp SMD2470ASY | Best microwave drawer | 1.2 cu. ft. | Convenient undercounter access |
| Whirlpool WMT50011KS | Best slim model | 1.1 cu. ft. | Trim kit included and only 14 inches high |
| KitchenAid KMBP100ESS | Best convection model | 1.4 cu. ft. | Bakes, broils, crisps, and microwaves |
The Best Built-In Microwaves Reviewed
1. KitchenAid KMBS104ESS Best Overall Built-In Microwave
The KitchenAid KMBS104ESS earns the top position because it gets the fundamentals right without turning reheating soup into a software-training seminar. Its 1.4-cubic-foot cavity, 1,000 watts of microwave cooking power, sensor programs, large turntable, and drop-down door make it suitable for everyday family use.
The appliance looks more like a compact wall oven than a traditional microwave, especially when installed above a matching oven. Its sensor settings handle common jobs such as reheating meals, preparing potatoes, and popping popcorn, while a keep-warm function helps when the rest of dinner is operating on its own mysterious schedule.
The KMBS104ESS is not the least expensive option, and its 1.4-cubic-foot interior is smaller than some value models. However, it offers a convincing combination of dependable microwave functions, attractive controls, and cabinet-ready construction. KitchenAid lists 1,000-watt cooking power and a 1.4-cubic-foot capacity, while major 2025 buying guides also identified it as a leading all-around built-in model.
2. Frigidaire Gallery GMBS3068AF Best Value and Large-Capacity Pick
The Frigidaire Gallery GMBS3068AF is a practical choice for buyers who want a large interior without paying speed-oven prices. Its 2.2-cubic-foot cavity can accommodate wide dinner plates, serving bowls, and larger containers that may feel cramped inside compact models.
Sensor cooking automatically adjusts operation according to the moisture released by food. The microwave also includes useful everyday modes for reheating, melting, and defrosting. It does not offer convection baking or air frying, but that simplicity may be an advantage for households that mainly need fast, predictable reheating.
The appliance was widely recommended as a value-oriented built-in microwave during 2025, although model availability may vary as Frigidaire updates its lineup. It also requires the correct compatible trim kit for a finished 27- or 30-inch installation. Buyers should calculate the cost of that kit before declaring victory at the checkout page.
3. LG MZBZ1715S Best Premium Built-In Speed Oven
The LG MZBZ1715S is for cooks who want a second oven disguised as a microwave. This 1.7-cubic-foot built-in speed oven combines microwave energy with infrared heating, convection circulation, broiling, and air frying. It can reheat coffee, roast vegetables, crisp frozen snacks, and cook smaller meals without requiring the main oven.
Sensor cooking monitors moisture to help determine when food is ready. LG’s ThinQ platform adds remote monitoring, recipe access, barcode scanning for selected packaged foods, and connected controls. Whether you need an app to supervise dinner depends on your personality, but checking the oven without leaving the couch has undeniable appeal.
The drawbacks are cost and depth. This is a substantial appliance designed for a carefully planned cabinet opening and appropriate electrical service. It is not a casual replacement for a basic microwave. For a remodel where flexibility matters more than budget, however, the LG offers one of the most complete cooking packages in the category.
4. Sharp SMD2470ASY Best Built-In Microwave Drawer
A microwave drawer places the cooking cavity below the counter and opens upward for loading. The Sharp SMD2470ASY is a leading example, offering a 1.2-cubic-foot interior and 950 watts of cooking power in a 24-inch-wide format.
The design works especially well in kitchen islands, peninsulas, beverage stations, and layouts where an appliance above the counter would interrupt cabinetry. Because dishes are lowered into the drawer rather than lifted into a wall-mounted cavity, access can also be more comfortable for shorter users.
There are compromises. A drawer costs more than a conventional microwave, and users must look downward to view or stir food. The cavity is wide enough for common plates and bowls but may not accommodate unusually tall containers. Installation also demands a solid, level support surface and the precise clearances shown in Sharp’s documentation.
5. Whirlpool WMT50011KS Best Slim Built-In Microwave
The Whirlpool WMT50011KS is designed for kitchens where vertical cabinet space is limited. It stands approximately 14 inches high and includes a slim stainless-steel trim kit, eliminating the need to hunt down a separate frame after purchase.
Its 1.1-cubic-foot cavity and 1,000-watt output are suitable for plates, mugs, bowls, and standard reheating duties. The tap-to-open door and concealed controls create a clean appearance, while an Add 30 Seconds button handles the highly scientific cooking method known as “give it another half-minute and see what happens.”
This is not the best choice for oversized casserole dishes or advanced baking. It is a focused, traditional microwave that uses its space efficiently. Whirlpool lists 10 power levels, preset programs, a turntable on/off option, and exterior dimensions of approximately 14 inches high, 29.75 inches wide, and 18 inches deep.
6. KitchenAid KMBP100ESS Best Built-In Convection Microwave
The KitchenAid KMBP100ESS is a strong option for buyers who want oven-style cooking without entering the highest speed-oven price tier. It combines a 1.4-cubic-foot microwave cavity with a 1,200-watt convection element capable of baking at temperatures up to 450 degrees Fahrenheit.
Its EasyConvect system helps convert conventional recipe instructions for convection operation. A broil element and Crispwave crisper pan expand its abilities to browning, grilling, and pan-frying. These functions are useful in small kitchens or during holidays when the main oven has become a crowded parking garage for casseroles.
The drop-down door and wall-oven styling look polished, but the appliance takes longer to master than a basic microwave. Buyers should expect to consult the manual while learning rack placement, combination modes, and cooking times.
How to Choose a Built-In Microwave
Measure the Cabinet Opening, Not the Old Appliance
Record the opening’s width, height, and usable depth. Then check the required ventilation space, outlet location, door clearance, and distance from nearby appliances. The visible width advertised in a product name is not necessarily the required cutout width.
For example, a nominally 30-inch appliance may require an opening closer to 28.5 inches wide. Installation diagrams are more reliable than retailer category labels, optimistic measuring, or holding a tape measure near the cabinet while saying, “That should probably fit.”
Choose the Right Configuration
A traditional built-in microwave is usually the most affordable and familiar option. Microwave drawers provide convenient undercounter placement and a minimalist appearance. Convection microwaves add a heating element and fan for baking and browning. Speed ovens combine multiple heat sources to produce more oven-like results in less time.
Do not pay for advanced modes simply because their names sound impressive. A household that mainly warms leftovers may receive more value from strong sensor cooking and simple controls than from 50 specialized presets.
Consider Capacity and Usable Interior Shape
Capacity commonly ranges from about 1.1 to 2.2 cubic feet. A larger number does not automatically mean every dish will fit. Turntable diameter, cavity height, interior width, and door design determine whether your favorite plate or casserole can actually rotate without staging a small collision.
Look Beyond Maximum Wattage
Traditional models with approximately 900 to 1,200 watts usually provide adequate everyday performance. Higher cooking power can reduce heating time, but sensor accuracy and power delivery also matter. Convection wattage and total electrical consumption should not be confused with microwave output.
Check Trim-Kit and Electrical Costs
Some built-in microwaves include their trim frame; others require a model-specific kit sold separately. Premium speed ovens may need a dedicated circuit or professional electrical work. Include cabinetry alterations, labor, trim pieces, and delivery in the budget rather than comparing appliance prices alone.
Built-In Microwave Installation Tips
Built-in installation is less forgiving than placing a countertop appliance beside the toaster. The cabinet must support the microwave’s weight, remain level, provide specified ventilation, and allow access to a properly located electrical connection.
Never block vents or install a standard countertop microwave inside a closed cabinet unless the manufacturer explicitly approves that configuration and provides a compatible kit. Heat needs a planned escape route; otherwise, the microwave may spend its new life slowly roasting its own electronics.
A capable homeowner may be able to install a straightforward trim-kit model, but a drawer, speed oven, combination unit, or installation requiring new wiring is usually better handled by a qualified professional. Always follow the installation guide for the exact model and revision number.
Real-World Experience: What Owning a Built-In Microwave Is Actually Like
The first benefit owners usually notice is not faster cooking. It is the sudden disappearance of a large appliance from the countertop. The kitchen feels less crowded, cleaning becomes easier, and there is more room for meal preparation. In a compact kitchen, recovering even a few square feet of work surface can feel like a renovation within the renovation.
Placement has a major influence on satisfaction. A microwave installed around chest or shoulder height is easy to see but can make removing hot, heavy bowls uncomfortable. A drawer eliminates overhead lifting, yet it requires bending and looking downward. Families should think about the height and mobility of everyone who regularly uses the appliance, not merely whether the installation looks attractive in a design rendering.
Control design becomes surprisingly important after the honeymoon period. A glossy panel with dozens of icons may look futuristic in a showroom, but frequently used functions should remain easy to locate. Owners tend to appreciate dedicated buttons for reheating, defrosting, popcorn, and adding 30 seconds. Controls hidden behind the door create a cleaner facade, although they may require opening the appliance before setting certain functions.
Sensor cooking is one of the features most likely to earn regular use. It can reheat foods more intelligently than selecting an arbitrary time at full power. It is not magic, however. Thick meals and mixed plates still benefit from stirring or rotating midway through cooking. Even a premium microwave cannot negotiate peace between frozen mashed potatoes and an already-boiling puddle of gravy without occasional human supervision.
Convection and air-fry modes are valuable when used for the right jobs. They work well for smaller portions, frozen snacks, roasted vegetables, and foods that should remain crisp. They are less compelling when a full-size oven is already hot or when the dish is too large for air to circulate. Owners who expect a compact speed oven to replace every conventional oven task may be disappointed; owners who treat it as a fast second oven are usually much happier.
Cleaning habits also change with the design. Drop-down doors can catch crumbs, while drawer models may collect spills along their upper edges. Stainless-steel interiors are durable, but splatter becomes stubborn when repeatedly heated. Covering food and wiping the cavity before residue hardens saves far more time than any advertised easy-clean coating.
Finally, replacement planning matters. A built-in microwave is connected to the cabinetry more closely than a countertop model, and future appliances may not share the same dimensions. Keeping the installation guide, trim-kit model number, cutout measurements, and photographs of the empty cabinet can make a later replacement dramatically easier.
Final Verdict
For most households, the KitchenAid KMBS104ESS offers the best balance of performance, appearance, and straightforward operation. The Frigidaire Gallery GMBS3068AF is appealing when capacity and value matter most, while the LG MZBZ1715S is the strongest premium choice for cooks who will genuinely use convection, air frying, and smart functions.
Choose the Sharp SMD2470ASY for an accessible undercounter drawer, the Whirlpool WMT50011KS for a shallow vertical opening, or the KitchenAid KMBP100ESS when oven-style browning is a priority. Above all, select the microwave that fits the cabinet, electrical system, cooking habits, and people using it. A bargain appliance that requires rebuilding half the kitchen is no longer a bargain.
Note: This guide reflects models and market positioning associated with 2025. Product availability, finishes, specifications, trim-kit compatibility, and prices can change. Verify the current manufacturer documentation before ordering or modifying cabinetry.
