What Does Microwave Repair Cost?
Microwave repair typically costs $100 to $450, averaging around $225. A diagnostic or service call runs $80 to $150, billed separately and usually credited toward the repair. Minor repairs run $100 to $250, and major component work runs $250 to $550. Whether any of that is money well spent depends almost entirely on which type of microwave you own.
Diagnostic or Service Call: $80 to $150
Diagnostic or service call: $80 to $150, typically credited toward the repair. The fee covers travel and diagnostic time and is separate from parts and labor. Confirm whether it is credited when you book the appointment.
Minor Repairs: $100 to $250
Minor repair: $100 to $250 including parts and labor. This tier covers door switches, door seals, the turntable motor, the interior light, valves, and thermostats. These are the most common microwave repairs and the most economical to address; when a technician diagnoses a minor issue, repair is clearly worthwhile relative to replacement on anything but the cheapest unit. (For more on this, see What Affects the Cost of Microwave Repair?.)
Major Component Repairs: $250 to $550
Major component repair: $250 to $550. Magnetron, control board, high-voltage capacitor, and motor failures land here. At this price the repair-versus-replace calculation becomes the real decision. A microwave more than eight to ten years old that needs major component work is often near the end of its reliable service life, and the repair may delay replacement by only a few years. (For more on this, see Microwave Repair vs. Replacement: How to Decide.)
Repair or Replace by Microwave Type
The same $250 repair is a bad idea on one microwave and an obvious yes on another. What changes is the replacement cost sitting on the other side of the decision. (For more on this, see Hidden Costs of Microwave Repair.)
| Microwave type | Replacement cost | Repair generally worth it |
|---|---|---|
| Countertop | $107 to $229 new for a standard unit | Rarely; a $100 to $250 repair meets or exceeds replacement |
| Over-the-range | $199 to $449 new plus $150 to $300 installation | Most failures under $300 |
| Built-in | $600 to $2,000 new plus installation | Most repairs under $400 |
Cost figures on this page were checked against published pricing on August 28, 2026. How we source cost data.
Countertop: Repair Rarely Makes Sense
A standard countertop microwave costs $107 to $229 new, so a repair in the $100 to $250 range meets or exceeds replacement cost. The diagnostic fee alone represents 35 to 140 percent of a new countertop microwave’s price. Professional repair is rarely the right financial decision here, with two exceptions: premium brands that cost $300 to $600 new, and units under two to three years old with a simple failure such as a door switch or turntable motor.
Over-the-Range: Repair Is Often Justified
Over-the-range microwaves, installed above the range with integrated ventilation, cost $199 to $449 new plus $150 to $300 in installation labor. A total replacement cost of $350 to $750 makes repair viable at much higher thresholds than a countertop unit. A $250 control board repair on an over-the-range unit that costs $350 to $750 to replace and reinstall is a reasonable decision.
Built-In: Repair Is Almost Always Preferred
Built-in microwaves integrated into cabinetry cost $600 to $2,000 new plus significant installation cost. Any repair under $400 is typically more economical than replacement. Major component replacement is usually worth pursuing unless the unit is very old or the repair cost approaches half the replacement cost.
Common Failures and What They Cost
| Cost Factor | Typical Range | Notes |
|---|---|---|
| Door interlock switch | $100 to $250 total | This is the most common microwave repair. Most microwaves have three door switches that must all close correctly for the unit to run, and a failed switch stops it from starting. The part itself costs only $12 to $55; labor is most of the bill. |
| Magnetron (no heat) | $250 to $550 total | The magnetron generates the microwave energy, and its failure is the usual cause of a unit that runs but does not heat. The part runs $105 to $190 and the labor alone is posted at $180 to $360. Replacing it exceeds the cost of a new countertop microwave, so it is generally economical only on over-the-range or built-in units. |
| High-voltage diode | $12 to $55 in parts | A failed diode also produces a no-heat symptom and is a far less expensive fix than a magnetron, which is one reason a real diagnosis matters before you write off the appliance. |
Do not treat internal microwave work as a DIY project. The high-voltage capacitor stores a potentially lethal charge of 2,000 to 4,000 volts even when the unit is unplugged, and it must be properly discharged before any internal work. Door switch replacement is the only repair where the risk is manageable for an informed homeowner, and only after that discharge.
What Else Affects the Price
The specific component that failed, parts availability, the appliance brand and model, local labor rates, and whether the repair requires significant disassembly all move the total. Parts for premium or less common brands cost more and take longer to source than parts for widely sold mainstream brands. The gap between a minor and a major component repair is the difference between $100 to $250 and $250 to $550, and it is not determinable from a symptom description alone, so a site visit and written diagnosis is the only reliable starting point for a budget.
The diagnostic fee is almost always worth paying even if you ultimately replace the unit. A technician who identifies a control board failure on a ten-year-old microwave has told you the unit failed from an expensive, common component rather than an installation error or a defect likely to repeat on the next one.
Evaluating the Repair Quote
Once you have a diagnosis, compare the quote against the replacement cost of a comparable unit. The working rule: if the repair exceeds 50 percent of replacement cost on an appliance more than five or six years old, get a replacement quote alongside the repair quote before approving anything.
A usable repair quote names the failed component, lists parts and labor separately, and confirms whether the parts are in stock or must be ordered. A single total with no itemization does not give you enough to decide. When you collect more than one quote, make sure each covers the same diagnosed component, the same parts sourcing, and the same labor warranty; large differences usually reflect a different diagnosis or different parts quality rather than price competition, and a quote well below the others is worth scrutinizing for what it leaves out.
Verify current liability insurance before anyone works in your home, and get the scope in writing for any job over $500, including parts, labor, and the labor warranty term. Tie payment to completion rather than paying in full upfront; a demand for full payment before work begins is a red flag in any trade.
Frequently Asked Questions
$100 to $450, averaging $225. A service call runs $80 to $150, is billed separately and is usually credited toward the repair, minor repairs run $100 to $250, and major component work runs $250 to $550.
It depends on the type. For countertop units at $107 to $229 new for a standard model, almost never, because the repair plus diagnostic fee meets or exceeds replacement cost. For over-the-range microwaves at $199 to $449 new plus $150 to $300 installation, repair is worth it for most failures under $300; for built-in units at $600 to $2,000 new, for most repairs under $400.
Door interlock switch failure, which stops the microwave from starting. Most microwaves have three door switches that must all close correctly. The part costs $10 to $30 and the total repair runs $100 to $250 with labor.
Most often a failed magnetron, the component that generates the microwave energy. The job runs $250 to $550 all-in, with the part at $105 to $190 and the labor alone posted at $180 to $360. A failed high-voltage diode at $10 to $30 in parts causes the same symptom and is a much cheaper fix.
No, for most repairs. The high-voltage capacitor stores a potentially lethal charge of 2,000 to 4,000 volts even when the unit is unplugged and must be discharged before any internal work. Leave everything beyond a door switch to a technician.
Yes. The $80 to $150 diagnostic fee is charged whether or not you proceed, and most companies credit it toward the repair if you do. Confirm the policy when booking.
Yes. Parts for premium or less common brands cost more and take longer to source than parts for widely sold brands, so repairs on mainstream models are typically less expensive.
The failed component by name, parts and labor listed separately, whether the parts are in stock or must be ordered, and the labor warranty. A single total with no itemization is not enough to decide on.
