ELECTRICAL
With RAINFIRE BUILDERS
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Modern home electrical is far more than wire and breakers. It is the nervous system of every room — powering lights that set the mood, outlets that keep life running, circuits that protect against fire, and smart systems that anticipate how you live. RainFire Builders’ licensed electricians design and install complete interior electrical systems with the panel sizing, circuit planning, and code precision that Utah homes demand.
POWER, LIGHT & PROTECTION
Interior Electrical Systems Explained
Interior electrical begins at the service entrance — where utility power arrives at the building — and distributes through the main panel to branch circuits that serve every outlet, switch, and fixture in the home. The panel is the hub; the branch circuits are the arteries; the devices and fixtures are where electricity meets daily life.
Panel sizing is the most consequential early decision in any new electrical scope. An undersized panel constrains every future addition — an EV charger, a hot tub, a kitchen remodel — and requires expensive upgrades that a correctly sized panel at original installation would have avoided. RainFire Builders performs a load calculation before every panel specification to ensure the home is sized for how it will actually be used.
Circuit design determines whether your home can support modern loads without nuisance tripping, code violations, or fire risk. The 2020 NEC — Utah’s current adopted code — requires AFCI protection on virtually all living space circuits and GFCI protection in all wet locations. Understanding where these requirements apply, and why, is core to our electricians’ daily work.
Low-voltage systems — structured data cabling, whole-home audio, security, and smart home automation — must be pre-wired during rough-in alongside line-voltage wiring. Retrofitting low-voltage infrastructure after walls are closed costs three to five times what pre-wiring costs during construction. RainFire Builders plans and installs both systems in a single coordinated rough-in.
Phase 1 — Rough-In
All wire runs, box locations, panel wiring, and low-voltage cabling are installed inside framing before drywall. Requires city rough-in inspection approval before walls close. This is where circuit design decisions are locked in permanently.
Phase 2 — Finish / Trim-Out
After paint and surfaces are complete: outlets, switches, and covers installed; fixtures hung; panel circuits landed and labeled; all circuits tested. What the homeowner touches every day.
The Standard: Inspect Before Close
RainFire Builders never closes walls before electrical rough-in inspection approval. Every circuit is verified before drywall — because no wall should ever be reopened to fix a wire that was in the wrong box.
OUR ELECTRICAL SERVICES
RainFire Builders’ licensed electricians handle the complete interior electrical scope — from load calculation and panel selection through finish devices and panel labeling — as a coordinated part of the interior construction sequence.
The RAINFIRE ELECTRICAL PROCESS
Electrical done well starts with a circuit plan — not with a wire spool and a staple gun. Every project begins with load calculation and layout review before rough-in begins.
Before any wire is ordered, RainFire Builders performs a load calculation per NEC Article 220 to determine the correct panel size and confirms the circuit plan covers all required and recommended circuits. The circuit plan specifies every circuit’s amperage, wire gauge, breaker type (standard, AFCI, GFCI, or dual-function), and the devices it serves. Lighting layouts are reviewed to confirm that the number and placement of recessed cans and fixtures serve the room’s function. Low-voltage locations are marked on the plan alongside line-voltage circuits. This document drives rough-in and eliminates after-the-fact discoveries that require cutting walls.
The main panel is installed at the service entrance location — typically the garage or a dedicated utility space — with the correct ampacity, number of circuit spaces, and mounting position for utility meter alignment. Panel brand and model are selected for quality and future expansion capacity — not the cheapest option that fits the spec. Sub-panel conduit is run to detached garages, workshops, or secondary structures if applicable. The service entrance conduit and meter socket are coordinated with Rocky Mountain Power for inspection and connection scheduling.
All branch circuit wire runs are installed from the panel to every box location — outlet boxes, switch boxes, light fixture boxes, and junction boxes — using the correct wire gauge for each circuit (14 AWG for 15A, 12 AWG for 20A, 10 AWG for 30A). Boxes are set at consistent heights (standard: receptacles 12″–18″ AFF, switches 42″–48″ AFF) using a consistent gang between studs. Wire is stapled within 12 inches of every box and at a maximum of 4.5-foot intervals per NEC requirements. Attic and crawl space runs are protected from damage per NEC. Low-voltage wiring is run simultaneously on separate drilling passes to prevent signal interference with line-voltage circuits.
With all rough-in complete, RainFire Builders calls for the city electrical rough-in inspection. The inspector verifies wire gauge, box fill calculations, stapling compliance, AFCI/GFCI circuit identification, and panel rough-in. After inspection approval, insulation is installed, and walls are closed. No drywall proceeds before electrical rough-in inspection approval — the sequence is absolute. Following inspection, the panel is landed with all circuit wires terminated at breakers, the panel directory is drafted, and the board is covered until the electrical is finished.
After paint is complete, RainFire Builders installs all finish devices: outlets (with consistent orientation — ground down or up per client preference and held consistently throughout), switches with correct toggle orientation, GFCI and AFCI devices at required locations, and cover plates level and flush. Fixtures are hung, recessed trims are installed, and under-cabinet lighting is connected. The panel is fully labeled — every breaker is identified clearly with the room and circuit it serves. All circuits are tested with a circuit tester before final inspection, and the final electrical inspection is called and passed before the project is handed over.
