When considering a generator repair, homeowners can expect costs to start at about $125 for diagnostics, followed by an hourly rate of $125 for repairs. For comprehensive repairs, especially on permanent, whole-house generators, prices can escalate to around $389 or more, depending on the repair complexity and parts required.
Annual maintenance can run between $200 to $600, emphasizing the importance of regular upkeep for reliability. Knowing the average and high-end repair estimates allows homeowners to budget appropriately and call in professionals confidently when issues arise.