Electrical Services and Upgrades for Sydney Homes
Nu Electrical is your trusted local team for residential electrical upgrades in the Hills District. Our fully licensed electricians deliver reliable, safe, and efficient solutions for homes in Castle Hill, Kellyville, Baulkham Hills, Dural, and surrounding suburbs. Whether you are renovating, upgrading your switchboard, or improving your lighting, we make sure your home electrical system performs at its best.
Residential Electrical Upgrades and Home Services
- Home Lighting Solutions – Complete wiring & installation of all indoor and outdoor lighting solutions.
- House Rewiring – If you experience repeated electrical issues, it may indicate outdated wiring. Rewiring replaces old components with modern, safer wiring capable of handling modern appliances.
- Switchboard Upgrades – Switchboard upgrades in the Hills District help protect your home and family from electrical faults and overloads. We install modern circuit breaker systems with safety switches and surge protection to improve safety, increase capacity, and prepare your home for future energy needs.
- Safety Switches – Installing a safety switch in your switchboard is an affordable way to protect against electrocution caused by faulty wiring, appliances, or switches.
- Surge Diverters – These cost-effective devices protect electronics from voltage surges (e.g., lightning strikes) by blocking or grounding excessive voltage.
- Power Points – Power point installations and upgrades are available for both indoor and outdoor areas. We add new outlets, replace old fittings, and ensure your home has enough power access for everyday appliances and entertainment systems.

Electrical Maintenance & Repairs
- Routine Maintenance – Prevent electrical failures with regular inspections, testing, and servicing to keep your system running optimally.
- Repairs & Troubleshooting – Experiencing power issues? Our skilled technicians diagnose and fix electrical problems quickly and safely.
- Emergency Electrical Services – Available [24/7] to address urgent electrical issues and restore power when you need it most.
- Energy-Efficient Solutions – Reduce energy consumption with LED lighting, smart controls, and other efficiency upgrades tailored to your needs.
- Fault Finding & Repairs – Systematic diagnosis of electrical issues, including wiring, circuits, and general electrical repairs.

Household Electrical Appliances
- Electric Hot Water Systems – Installation, repairs, and maintenance, including thermostat and element replacements.
- Multimedia, Telephone & Data Points – Install additional data points for convenient access to phone and internet services without messy cables. antenna repair/replacement, TV point installation, and cable management for wall-mounted TVs.
- Ceiling Fans – A cost-effective way to cool your home, using significantly less energy than air conditioning.
- Exhaust Fans – Prevent moisture, odours, and mould build-up in bathrooms, kitchens, and laundry areas by extracting humid air and improving ventilation.
- Bathroom Heating – Heat lamps, underfloor heating, and heated towel racks keep your bathroom warm in winter.
- Smoke Detectors – NSW law requires at least one working smoke alarm per level in all homes.
- Safe & Secure Camera Wiring & Home Security We install the necessary power points, conduits, and cabling to connect cameras and alarm systems to your home’s electrical system.

Frequently Asked Questions About Installing Smoke Detectors
To install smoke detectors, choose suitable locations on ceilings or high walls, avoiding kitchens and bathrooms to minimise false alarms. Use screws or adhesive mounts to secure the detectors, and ensure they meet Australian safety standards. For hardwired models, you may need a licensed electrician to handle the installation safely and comply with local regulations.
Smoke detectors should be installed in every bedroom, outside sleeping areas, and on each level of your home. Place them on ceilings or high walls, avoiding corners, vents, and fans. For Australian homes, it’s crucial to follow local building codes and safety guidelines for optimal placement.
Battery-operated smoke detectors can often be installed by homeowners, but hardwired smoke detectors should be installed by a licensed electrician. This ensures compliance with Australian safety standards and proper connection to your home’s electrical system, providing reliable protection.
The cost of installing smoke detectors depends on the type and number of detectors needed. Battery-operated detectors are cheaper and easier to install, while hardwired models need professional installation by an electrician typically range from $150 to $300 per unit. Always prioritise safety and compliance with Australian regulations.
Smoke detectors should be tested monthly and replaced every 10 years, or as recommended by the manufacturer. Replace batteries annually for battery-operated models. Regular maintenance ensures your smoke detectors remain effective in protecting your home and family from potential fire hazards.
Qualifications & Accreditations
Nu Electrical holds a Level 2 Electrical Certification, demonstrating its compliance with industry standards and regulations. This certification authorises us to perform a wide range of electrical work, ensuring safety, reliability, and adherence to best practices in the field.




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Contact Details
- 0431 953 192
- info@nuelectrical.com.au
- 136 Annangrove Road, Annangrove, 2156
Opening Hours
- Mon - Fri
- 7:30am to 5:00pm
- Sat - Sun
- Closed