New Construction Electrical

Black house with lightning bolt and plug icon, representing home electricity or charging.

Future-Proof Electrical Layouts Designed Around Your Life

The worst time to realize you don't have enough outlets, that your kitchen island lacks power, or that your master bedroom light switches are poorly placed is after the drywall is hung and painted. A poorly planned electrical layout can leave your brand-new custom home feeling frustratingly outdated from day one.



At Holtzclaw Electric, based right here in Marion, IL, we take a proactive, collaborative approach to new home wiring. We look at your blueprints not just as a set of technical lines, but as the physical space where you will raise your family, entertain guests, and work from home. We design your electrical load, map out switches and outlets for maximum convenience, and make sure your system has the overhead capacity to handle tomorrow's technology.

Seamless Coordination with Your Builder and Project Timeline

We know that custom home building requires tight schedules and clear communication. We keep your project on track using our proven three-phase process:

1. The Planning Phase

We review your architectural plans, discuss your specific electrical goals (like pre-wiring for an Electric Vehicle charger or hot tub), and finalize the layout.

2. The Rough-In Phase

Once the home is framed and dried-in, but before the insulation goes in, we run all the wiring and install all boxes. We coordinate directly with local municipal inspectors to clear our rough-in inspection with zero delays.

3. The Finish Trim Phase

After the walls are painted and the cabinets are installed, we return to mount switches, plug receptacles, hang beautiful light fixtures, and thoroughly test every single circuit for complete safety.

Comprehensive Electrical Contracting from Groundbreaking to Final Trim-Out

We handle every stage of your custom home build with precision, coordination, and elite craftsmanship:



  • Custom Layout Design & Consultation: Helping you map out convenient outlet placements, smart home wiring configurations, and ambient light layers before construction begins.
  • Temporary Power Setup: Installing safe, reliable temporary power poles on-site to keep your framing and construction crews powered during the initial phases of the build.
  • Rough-In Wiring: Running thousands of feet of safe, insulated copper wiring cleanly through your framing, securely mounting junction boxes, and organizing circuit lines.
  • Main Electrical Panel & Meter Installation: Setting up high-capacity 200-Amp or 400-Amp panels and coordinating with local Southern Illinois utility companies for seamless grid hookups.
  • Code-Compliant Safety Features: Installing proper GFCI outlets in wet areas, Arc-Fault Circuit Interrupters (AFCI) on bedroom lines, and hardwired, interconnected smoke/CO detectors.
  • Final Trim-Out & Fixture Hanging: Mounting all of your customized lighting fixtures, dimmers, standard wall outlets, clean faceplates, and heavy appliances.

Let's Design Your Dream Home's Electrical Core Today

Don't leave the critical framework of your new home to general contractors or rushed subcontractors. Contact Southern Illinois' favorite local electrical experts to schedule your new build layout walkthrough.