Union Builders
Powering Progress. Building the Future.
Reliable electrical contracting solutions for BESS facilities, power plants, renewable energy systems, and power distribution networks across the Philippines.
Building Your Energy Solutions
30+ Years Of Accumulated Experienced
Union Builders is a trusted electrical and power infrastructure contractor delivering safe, precise, and high-quality solutions. With experienced engineers, skilled contractors, and industry-standard equipment, we support critical energy projects that help power communities and industries nationwide.
650+
Successfully Project Finished.
30+
Years of experience with pride
400+
Clients
150+
Colleagues & counting more daily
Delivering Your Power Needs
Quality Services
Battery Energy Storage System (BESS) Interconnection
- High-voltage electrical interconnection works
- Protection & control installation
- Cable routing, terminations & testing
- SCADA integration support
- Substation intertie works
Diesel-Fired Power Plants
- Generator electrical installation
- Fuel system instrumentation
- Switchgear installation and commissioning
- MV/LV cable laying & testing
- Earthing & lightning protection systems
Renewable Energy Interconnection
- AC/DC electrical works
- PV array wiring & inverter interconnection
- Grid-tie connection & metering
- Facility grounding systems
- Testing and commissioning
Power Distribution & Substations
- 13.8kV–69kV distribution line projects
- Substation installation (transformers, breakers, relays)
- Protective relaying configuration
- Cable trays & conduit systems
- Preventive maintenance & upgrades
Industrial Electrical Projects
- Large-scale industrial wiring
- Motor control centers
Commercial Electrical Projects
- Automation & controls
- Energy efficiency upgrades
Precision in Every Connection
Let’s build your next power project.
Contact us today for consultation and project evaluation.
Union Builder's Commitment
We adhere to industry-recognized standards to ensure safe, efficient, and high-quality project execution.
- Safety & Compliance
- Timely Project Delivery
- Quality Workmanship
- Trusted Expertise
Resilience
Enhance modern living through secure and efficient infrastructure
Our work contributes to a more sustainable energy future by supporting renewable interconnections, improving system efficiency, and ensuring responsible electrical construction practices.
Leadership & Team
Leadership You Can Trust. Expertise You Can Rely On.
Engr. Fname Lname
CEO
Atty. Fname LName
CTO
Engr. FName LName
COO
Leadership & Team
Our Latest Works
40MW BESS Interconnection Facility
60 MW Solar
Substation
60 MW Station
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Ready to Work Together? Build a project with us!
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Frequently Asked Questions
We specialize in a full range of electrical engineering and construction services, including Battery Energy Storage System (BESS) interconnection, diesel-fired power plant electrical works, renewable energy integration (solar, wind, hybrid), power distribution line construction, substations, and industrial/commercial electrical installations. Our team handles everything from design and installation to testing and commissioning.
Yes. We provide complete engineering services—detailed design, load calculations, single-line diagrams, technical documentation, as-built drawings, and regulatory compliance requirements. We ensure that every project meets industry standards and approved engineering practices.
Safety and quality are at the core of our operations. We follow strict safety protocols, conduct regular site audits, use certified equipment, and ensure all engineers and technicians are fully trained. Every project undergoes multi-stage quality checks—from installation to final commissioning—to guarantee reliable and long-lasting results.