About

Precision electrical work built on craft, compliance & safety.

Based in Hobsonville, Auckland, CJS Electrical Solutions delivers professional electrical contracting across architectural new builds, residential renovations, switchboard infrastructure, and commercial premises.

We operate with a direct conviction: electrical infrastructure must be rigorously safe, cleanly executed, and engineered for enduring reliability. From technical planning and switchgear installation to fault diagnosis, electrical maintenance, and certified sign-off, our registered electricians deliver dependable workmanship at every stage. We combine practical experience with careful attention to detail, ensuring every project is completed to the highest standards of quality, compliance, and safety. With transparent communication throughout the process, we work closely with our clients to understand their requirements, provide practical solutions, and deliver electrical systems they can rely on for years to come.

100%

NZ Safety & Code Compliance

EWRB

Registered Practicing Electricians

Fixed

Itemised & Transparent Scope

Understanding Electrical Safety & Compliance in New Zealand

Essential information for homeowners, architects, and commercial operators regarding legal obligations, infrastructure protection, and certified trade practices.

Mandatory Documentation

Certificate of Compliance (CoC) & Safety Certificates (ESC)

Under New Zealand's Electricity (Safety) Regulations 2010, all Prescribed Electrical Work (PEW) requires formal legal certification. A Certificate of Compliance (CoC) certifies that new high-risk or general electrical work meets AS/NZS 3000 safety standards, while an Electrical Safety Certificate (ESC) confirms the installation is connected and safe to use. These documents are legally required for property insurance validity, tenancy compliance, and council Code Compliance Certificates (CCC).

Critical Life Safety

Residual Current Devices (RCDs) & Switchboard Modernisation

Legacy ceramic fuse boards cannot detect earth leakage currents, creating significant fire and electrocution hazards. Modern switchboard upgrades introduce Type A 30mA Residual Current Devices (RCDs) paired with Miniature Circuit Breakers (MCBs) that isolate fault currents within 30 milliseconds. This rapid protection safeguards property occupants, sensitive home electronics, and high-load appliances.

Capacity Engineering

Mains Load Calculations & Modern High-Draw Demands

Contemporary living places unprecedented electrical demand on residential and commercial mains supplies — from dedicated EV chargers (7.4kW–22kW) and multi-split heat pumps to commercial machinery and induction cooktops. Before major installations, we assess diversity factors, mains cable gauge, and service fuse ratings to ensure your power infrastructure operates with optimal headroom and zero nuisance tripping.

Environmental Durability

Sub-Circuit Isolation & Coastal Environment Protection

Auckland's coastal humidity and salt-laden air require stringent Ingress Protection (IP) ratings (IP65/IP66) and corrosion-resistant enclosures for exterior switchgear, garden lighting, and outdoor power points. By engineering dedicated sub-circuits, any exterior weather-related fault is isolated immediately without compromising indoor lighting, refrigeration, or essential power systems.