What is electrical service amperage and why does it matter?
Quick answer: Electrical service amperage is the total capacity of power coming into your home, commonly 100, 150, or 200 amps in modern houses. Older Bloomington homes sometimes have 60-amp service, which can be inadequate for today's appliances, electronics, and electric vehicle charging. An inspector identifies the service size and notes whether it appears sufficient for the home's demands. Undersized service may need an upgrade by a licensed electrician, which is useful to know for both convenience and resale.
Amperage sets the ceiling on how much electricity the home can use at once. Older 60-amp services were sized for the lighter loads of decades past and can struggle with modern central air, large appliances, and growing electronic demands.
An inspector reads the service size from the panel and meter and assesses whether it suits the home. Signs of an overtaxed system, like frequently tripped breakers or extensive use of extension cords, suggest the service may be undersized.
Upgrading service is a job for a licensed electrician and a meaningful expense, but it improves capacity, safety, and resale appeal. Knowing the amperage before buying lets you plan for an upgrade if you intend to add major electrical loads like EV charging.
