Average Cost: The average cost of replacing a waveguide cover in a microwave oven repair service is around $150-$200. This includes labor costs and the cost of the parts.

Cost Breakdown: The cost of replacing a waveguide cover typically includes the cost of the part itself, the cost of labor for the installation and any additional costs for materials and tools. The cost of the part itself may vary depending on the type and quality of the accessory, but typically ranges from $50 - $100. Labor costs may range from $50 - $100, depending on the complexity of the job.

Factors Affecting Cost: Several factors can affect the cost of replacing a waveguide cover, including the type and quality of the accessory, the complexity of the job, and the location and service provider. Higher quality accessories will typically cost more, while more complex jobs may require more time and labor, resulting in higher costs. Additionally, the location of the service provider and the type of service they offer can also affect the cost.