Service
We provide a comprehensive mechanical and electrical service programme, fully compliant with SFG20 guidelines or tailored to specific client requirements.
At ZJ Building Services, we are committed to delivering high-quality, reliable maintenance solutions to meet your needs. Whether you require routine servicing or a rapid response to an issue, our expert team is on hand to provide efficient and professional support.

Our Services Include:
Air Conditioning Maintenance
We provide routine and reactive maintenance for all types of air conditioning systems, ensuring optimal performance and energy efficiency. Our services include:
- Cleaning and replacing filters
- Refrigerant checks and recharges
- System diagnostics and troubleshooting
- Preventive maintenance to extend equipment lifespan
Air Handling Unit (AHU) Maintenance
Air handling units are critical for maintaining indoor air quality. Our AHU maintenance services include:
- Inspection and cleaning of fans, filters and coils
- Monitoring airflow and temperature controls
- Lubrication of mechanical components
- Ensuring compliance with ventilation regulations
Air and Water Source Heat Pump Maintenance
Heat pumps are an energy-efficient way to manage temperature and regular maintenance is key to their performance. Our services cover:
- Inspection and cleaning of heat exchangers
- Ensuring correct refrigerant charge and pressure
- Verifying electrical connections and controls
- Seasonal optimisation for heating or cooling
Secondary Heating and Cooling System Maintenance
We ensure your secondary systems work seamlessly to support your primary HVAC solutions. Our services include:
- Maintenance of pumps, valves and piping
- Balancing systems for consistent temperature control
- Preventive checks to minimise downtime
- Quick response to faults and repairs
Fixed Wire Testing
Our fixed wire testing services are designed to ensure your electrical systems are safe and compliant. We offer:
- Periodic inspection of wiring installations
- Identification of potential hazards and repairs
- Detailed reporting for compliance with safety standards
- Certification in line with current regulations
Emergency Light Testing
Our emergency lighting testing services ensure your building remains safe during power outages. This includes:
- Inspection and functionality checks of emergency lighting systems
- Battery discharge tests and replacements
- Verification of illumination levels and coverage
- Compliance with building safety codes

Protect your systems with ZJ Building Services’ Maintenance solutions.
Get in touch today to learn how we can keep your equipment running smoothly and efficiently, 24/7.
Contact us