Electrical Service Installations Up to 400 Amps
Planning a new electrical service or upgrading an existing one? SPI installs and upgrades electrical services up to 400 amps, with equipment and service sizing determined by the property’s actual needs.
Planning the Right Electrical Solution
A larger service can support substantial residential loads, workshops, additions, and other projects—but 400 amps is not automatically the right choice. We review existing equipment, anticipated loads, utility requirements, and the available installation route before proposing a scope.
What SPI Can Handle
Load and service evaluation
Review existing demand, anticipated equipment and load calculations to determine appropriate service size.
Metering and distribution
Plan meter equipment, service disconnects, panels, feeders, grounding and bonding for the approved design.
Utility and permits
Coordinate service requirements, shutdowns, permitting and inspections as applicable.
Overhead or underground
Review the route, site conditions, trenching requirements and utility service standards.
Frequently Asked Questions
No. Service sizing depends on calculated loads and equipment requirements, not square footage alone.
Not necessarily. Metering, service conductors, utility capacity, disconnect arrangements and other equipment may need changes.
SPI serves Winter Springs, Tuscawilla, Oviedo, Casselberry and Winter Park, subject to scheduling and project scope.
Talk With SPI About Your Project
We can review the electrical scope, site conditions and next steps before preparing an estimate.