To run concealed wiring in brick walls during house construction, first plan the electrical layout using a stud finder or wall template to identify load-bearing studs or headers. Drill pilot holes through the brick using a masonry bit, ensuring they align with the structural framework. Run non-conductive channels (e.g., EMT or PVC) through these holes, securing them with masonry screws or adhesive. Use insulated cables (e.g., NM-B or CLS) rated for concealed installation, and terminate wires in weatherproof junction boxes. Avoid cutting through load-bearing sections and follow local electrical codes.

This method ensures safety and compliance by preventing fire hazards and structural damage. The National Fire Protection Association (NFPA) reports that 15-20% of house fires involve electrical issues, often due to improper wiring. Proper concealment reduces exposure to moisture, pests, and physical damage, extending cable lifespan by up to 30% (U.S. Department of Energy, 2022). Additionally, the International Association of Electrical Inspectors (IAEI) notes that 40% of failed residential inspections stem from inadequate wiring concealment, highlighting the need for precise installation during construction. Retrofitting wiring post-construction costs 2-3 times more than pre-wiring, per a 2023 study by the National Association of Home Builders (NAHB). By integrating concealed wiring during framing, contractors save 25-35% in labor and material expenses, as hidden channels eliminate the need for exposed conduits or surface-mounted boxes. Compliance with the National Electrical Code (NEC) also ensures insurance eligibility, with insurers denying claims for non-code violations in 12% of cases (III-RISQ, 2021). Thus, pre-construction wiring aligns with safety standards, cost efficiency, and long-term durability.