Microwave Repair Cost: What to Expect
Quick answer
Most microwave repairs run roughly $150–$350, including a diagnostic of about $90–$150 that's often applied to the repair. Common fixes — door switches, fuses, and turntable motors — sit at the lower end, while magnetrons and control boards run higher. Built-in and over-the-range units cost more to remove and reinstall. Costs vary by part, and you get an exact upfront quote first.
When a built-in or over-the-range microwave stops heating, trips a breaker, or starts arcing inside, you want a fast answer on whether it's worth fixing — and what it'll cost. Most microwave repairs are straightforward, with a handful of common parts covering the majority of service calls. This guide breaks down realistic microwave repair costs for Northern Virginia and DC homeowners so you can decide with confidence before you call.
What drives microwave repair cost
Your total depends on the diagnostic fee, the part, and the labor. Diagnostics typically run $90–$150 and are often credited toward the repair. Built-in and over-the-range models cost more than countertop units because they're mounted and typically take two people to remove and reinstall safely, and access to internal components is tighter. We diagnose the exact failure first, then give you an exact quote before any work begins.
Common repairs and ranges
As ballparks: a door switch or interlock often runs $100–$225; a fuse or thermal cutoff $90–$200; a turntable motor $100–$225; a control board or keypad $200–$400. A microwave that hums but won't heat, trips the breaker, or has an unresponsive display usually traces to one of these. A magnetron — the part that actually generates heat — sits higher. The exact cost depends on brand and part, so we confirm it upfront.
Magnetron and high-voltage repairs
The magnetron and its high-voltage capacitor and diode are the most expensive microwave repairs, typically $200–$450, because they involve components that can store a dangerous charge even when unplugged. If your microwave runs but produces no heat, or you notice arcing or sparking inside, this is often the cause. This isn't a DIY repair — a specialist safely discharges the capacitor before ever touching the part.
Repair or replace your microwave?
A countertop microwave costs roughly $100–$300 new, so a major repair rarely makes sense on one. A built-in or over-the-range unit is a different story — replacement often runs $400–$1,000 including removal and reinstall, or more for a luxury brand, so most repairs are the smarter financial choice. Our specialist technicians will tell you honestly when a repair isn't worth it, but for built-in units, that's the exception, not the rule.
When to Call a Specialist
A microwave that won't heat, sparks, or trips the breaker shouldn't mean guessing at the cost — or risking a DIY repair around a high-voltage capacitor. Our specialist technicians diagnose the exact issue, then give you a clear, upfront quote before any work begins. With same-day service across Northern Virginia and DC and a 90-day workmanship warranty, you can decide with full information. Call (571) 571-1664 to get it fixed today.
Frequently Asked Questions
Why does my microwave hum but not heat?
A microwave that hums but produces no heat usually points to a failed magnetron, a blown high-voltage diode, or a bad capacitor. These repairs typically run $200–$450 and involve high-voltage components that store a charge even unplugged, so this isn't a safe DIY fix. We diagnose the exact cause and provide an upfront quote before any work begins.
Is it worth repairing a built-in microwave?
Almost always. A built-in or over-the-range microwave often costs $400–$1,000 or more to replace once you include removal and reinstallation, so a repair in the $150–$400 range is usually the better value. We'll give you an honest recommendation based on the actual fault.
Why did my microwave trip the breaker?
A microwave that trips the breaker often has a shorted diode, a failing magnetron, or a fault in the high-voltage transformer. Because these components carry a dangerous stored charge, this repair should always be handled by a specialist. We diagnose the exact cause on-site and quote it upfront before starting any work.
Rather have us handle it?
Same-day microwave repairacross Northern Virginia & DC. Upfront pricing, 90-day warranty, specialist technicians.
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