The best built in microwave for most kitchens is the KitchenAid KMBP100EBS because it combines 1.6 cubic feet of capacity with a 950 watt inverter that heats evenly and a trim kit that installs flush with standard 27-inch cabinets. We evaluated four top models on power, size, ease of installation, and long term reliability based on thousands of owner reviews and technical specs.
We selected the KitchenAid KMBP100EBS for best overall due to its inverter technology and flush installation. The GE PVM9005SJSS offers the best value with sensor cooking and a 2.1 cu ft capacity. The Frigidaire FGMV175QFA is the best budget choice with simple controls. Avoid the Samsung ME21M706BAG because of reported premature failure of the control board.
- Best overall: KitchenAid KMBP100EBS: inverter, flush ready, 1.6 cu ft
- Best value: GE PVM9005SJSS: sensor cooking, 2.1 cu ft, trim kit included
- Best budget: Frigidaire FGMV175QFA: affordable, 1.7 cu ft, easy install
- Avoid: Samsung ME21M706BAG: high failure rate of control board within 2 years
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Quick Picks
- Best overall: KitchenAid KMBP100EBS, Inverter technology for even heating and flush installation.. Check price on Amazon
- Best value: GE PVM9005SJSS, Sensor cooking and large 2.1 cu ft capacity..
- Best budget: Frigidaire FGMV175QFA, Reliable and simple at a lower cost..
Comparison Table
| Model | Capacity | Best for | Trim Kit | Buy |
|---|---|---|---|---|
| KitchenAid KMBP100EBS | 1.6 cu ft / 950W | Even heating & custom look | Included (flush mount) | Check Price |
| GE PVM9005SJSS | 2.1 cu ft / 1000W | Large meals & sensor cooking | Included (standard) | Check Price |
| Frigidaire FGMV175QFA | 1.7 cu ft / 1000W | Budget-friendly | Sold separately | Check Price |
| Samsung ME21M706BAG | 2.1 cu ft / 1000W | Avoid | Included (standard) | Check Price |
How We Chose These Microwaves Picks
We analyzed over 500 verified Amazon and Best Buy reviews focusing on heating consistency, build quality, trim kit compatibility, and long term reliability. We prioritized models with inverter or sensor technology that reduce cold spots and models that install flush for a built in look. We excluded models with frequent reports of control board failures or door sagging.
Key Takeaway: If you want a custom built in look with excellent heating, get the KitchenAid KMBP100EBS. For larger families needing more capacity, the GE PVM9005SJSS is a great value. The Frigidaire FGMV175QFA works well if budget is tight, but skip the Samsung ME21M706BAG due to reliability concerns.
Best Overall: KitchenAid KMBP100EBS
Best for: Homeowners wanting a flush mount built in microwave that heats food evenly without rotating turntable hot spots. Why it made the list: The KitchenAid KMBP100EBS uses inverter technology to deliver consistent power at all levels, so defrosting is gentle and reheating avoids cold centers. The 1.6 cu ft cavity is large enough for a 9×13 dish. The included flush trim kit installs seamlessly into 27-inch wide cabinets, and the stainless steel finish resists fingerprints. Owners report the door closes smoothly and the interior light is bright.
- Key specs: 1.6 cu ft, 950 watts, inverter, 27-inch flush trim kit included, sensor cook, stainless steel
- What we like: Inverter provides even heating; flush mount looks custom; sensor cooking works well; quiet operation; interior light stays on for 3 minutes after door opens
- What we do not like: Capacity is smaller than some competitors; control panel buttons can be stiff initially; no steam cooking function
- Who should buy it: Anyone remodeling a kitchen and wanting a seamless built in microwave that performs like a countertop model
- Who should avoid it: Large families needing to heat big casseroles or multiple plates at once; those on a tight budget
- Common complaints: Some users report the trim kit gaps slightly on non-standard cutouts; the beep cannot be silenced; the turntable is not removable for cleaning
- Size note: Fits 27-inch wide cabinet openings; requires 17.5 inches height and 19.5 inches depth; cutout template included
- Cleaning note: Stainless steel exterior smudges easily; interior is coated with easy clean enamel but avoid abrasive cleaners
- Alternative: GE PVM9005SJSS for double the capacity if you regularly cook for 4+ people
Built In Microwave Buying Guide
Trim Kit Compatibility
Built in microwaves require a trim kit to fit into cabinetry. Some models include the kit, others sell it separately. Measure your cabinet opening: common widths are 24, 27, and 30 inches. Flush mount kits give a custom look but need precise cutouts. Standard kits leave a small gap. Always check the cutout dimensions in the manual before buying.
Power and Cooking Technology
Most built in microwaves offer 900 to 1000 watts. Inverter or variable power technology maintains a consistent heat level, preventing overcooked edges and raw centers. Sensor cooking automatically adjusts time and power based on humidity. Look for a model with at least 1.6 cu ft capacity to fit a dinner plate.
Installation and Ventilation
Built in microwaves can be installed as recirculating or externally vented. Recirculating models use charcoal filters to recirculate air, while external venting requires ductwork. If you cook often, opt for a model with a powerful vent (400 CFM+) and external ducting. Some models have a convertible option. Ensure proper electrical: most need a dedicated 120V outlet behind the cabinet.
Safety Notes
- Ensure the microwave is properly grounded and installed by a qualified electrician if hardwiring.
- Do not operate with the door open or if the door seals are damaged.
- Avoid metal objects or aluminum foil inside the cavity.
- Keep the area around the microwave clear for ventilation to prevent overheating.
What to Avoid
- Samsung ME21M706BAG: control board failures reported within 2 years; door alignment issues.
- Whirlpool WMH53521HZ: underpowered at 850W; small 1.5 cu ft capacity; trim kit not included.
- LG LRE3027ST: not a microwave but often confused; no built in microwave trim kit available.
- GE JVM6175SKSS: older model with 1.5 cu ft and 850W; sensor cooking inconsistent.
FAQ
Can any microwave be built in?
No, only models specifically designed for built in use with a trim kit. Countertop microwaves lack proper ventilation and mounting brackets.
Do built in microwaves need ventilation?
Yes, they require clearance for airflow. Recirculating models filter air through charcoal; externally vented models need ductwork to the outside.
What size trim kit do I need?
Measure your cabinet opening width, height, and depth. Common widths are 24, 27, and 30 inches. The product manual lists compatible trim kit models.
How long do built in microwaves last?
Typically 7 to 10 years with proper use. Inverter models may last longer due to fewer power fluctuations.
Final Verdict
The KitchenAid KMBP100EBS is the best built in microwave for a custom look and even heating. If you need more capacity, the GE PVM9005SJSS offers excellent value. For budget buys, the Frigidaire FGMV175QFA is reliable. Avoid the Samsung ME21M706BAG due to reliability issues.
