
Hampshire's Three-Phase Specialists
Phase 3 provides professional, reliable electrical solutions for customers who need the additional capacity and flexibility of a three-phase power supply.

Specialists in three-phase power
Phase 3 is a Hampshire-based electrical company specialising in three-phase electrical installations for domestic and commercial properties across the county.
We provide professional, reliable electrical solutions for customers who require the additional capacity and flexibility of a three-phase power supply. From property upgrades and new installations to commercial premises, workshops, machinery, EV charging infrastructure and other high-demand electrical systems, we deliver installations designed around the requirements of each property.
- Assessment, design and specification
- Distribution equipment and cabling
- Installation, testing and commissioning
- Domestic, commercial and development work
Why Customers Choose Phase 3
A focused, professional and approachable team delivering three-phase power the right way.
Built Around You
Every installation is designed around the property and how it is used, not a one-size-fits-all template.
Safe & Compliant
Work is carried out to current wiring regulations and finished with proper testing and certification.
Specialist Skill
We focus on three-phase power, so you get the additional capacity and balance done by people who know it well.
Domestic & Commercial
We work with homeowners, landlords and developers as well as businesses and commercial property operators.
- 3-Phase
- Specialist installations
- Domestic
- & commercial property
- Hampshire
- County-wide coverage
- End to End
- Design to commissioning
Our Installation Process
A clear, four-step process from first survey to final certification.
Assessment
We survey the property, review your requirements and assess the load so the design fits how the space is used.
System Design
We specify the supply, distribution and cabling, and coordinate with your network operator where a new supply is needed.
Installation
Our team installs the distribution equipment, cabling and containment neatly, with minimal disruption to your day.
Testing & Commissioning
We inspect, test and commission the installation, then hand over with the certification to confirm it meets current standards.
What Our Customers Say
Rated on Google Reviews
Dalton Mononyane
Phase 3 Offices, Manchester.
Fernanda Prado
Great support, definitely recommend Phase 3.
Work With Phase 3
Talk to our team about your three-phase installation. We provide free, no-obligation quotes across Hampshire.