Do you cover Fareham?

Yes, Phase 3 covers Fareham and the surrounding area.

How do I contact Phase 3?

Call 01962571588 to get in touch with Phase 3.

What are Phase 3's opening hours?

Monday: 09:00–17:00; Tuesday: 09:00–17:00; Wednesday: 09:00–17:00; Thursday: 09:00–17:00; Friday: 09:00–17:00; Saturday: Closed; Sunday: Closed

Can you convert my supply to three-phase in Southampton?

Yes. We convert single-phase supplies to three-phase and increase capacity for homes and businesses throughout Southampton and Hampshire.

How do I know if I need an upgrade?

If you are adding machinery, EV charging, heat pumps or other heavy loads, or suffering from tripping and overloads, an upgrade to three-phase is often the answer. We will assess this for you.

Who arranges the new supply?

We coordinate with your Distribution Network Operator where a new or larger supply is required, and manage the process on your behalf.

What is included in the upgrade?

Typically an assessment of your existing supply, DNO coordination, upgraded metering and distribution, new tails, boards and protective devices, and full testing and certification.

Do you offer a free quote?

Yes. Every upgrade and conversion comes with a no-obligation free quotation, with clear pricing and no hidden costs.

01962 571 588 Get a Quote

Three-phase supply upgrade with meter tails and distribution panel

Three Phase Upgrade & Conversion

Three Phase Upgrade & Conversion in Southampton

Name: Phase 3
Telephone: 01962571588

Convert your single-phase supply to three-phase or increase capacity across Southampton and Hampshire. Book your no-obligation free quotation today.

No-obligation free quotation
Domestic & commercial specialists
Fully tested and certified work

Call 01962 571 588

Get Your Free Quote

Tell us about your three phase upgrade & conversion project in Southampton and we will be in touch.

Three-phase specialists

Tested & certified work

Hampshire county-wide

Three Phase Upgrade & Conversion in Southampton

Upgrade to Three-Phase Power in Southampton

When a single-phase supply can no longer keep up with demand at a property in Southampton, upgrading to three-phase provides the extra capacity for machinery, EV charging and heavier loads. Phase 3 manages the upgrade end to end and coordinates with your network operator where required.

We assess your existing supply and demand, arrange the new supply where needed, and install the upgraded metering, distribution and protection so your property is ready for where it is heading.

Why Choose Phase 3

Three Phase Upgrade & Conversion Done Properly in Southampton

More Available Power

Extra capacity for demanding equipment, machinery and EV charging.

Fewer Overloads

A balanced three-phase supply reduces nuisance tripping and overloads.

DNO Coordination

We liaise with your network operator when a new supply is needed.

Fully Certified

Upgraded tails, boards and devices, all tested and certified.

How It Works

A Simple, Clear Process

Assessment & Survey

We visit your property, review your existing supply and understand the loads you need to power now and in the future.

System Design & Quote

We design a three-phase solution around your requirements and provide a clear, no-obligation free quotation with no hidden costs.

Installation

Our team installs the distribution equipment, cabling and containment cleanly and safely, working around your schedule.

Testing & Commissioning

Every installation is fully tested, commissioned and certified to current standards before we hand it over to you.

FAQs

Frequently Asked Questions

Get In Touch

Request Your Free Quote in Southampton

Ready to discuss your three phase upgrade & conversion project? Send us your details and we will get back to you with a no-obligation free quotation. Prefer to talk it through? Give us a call.

01962 571 588

Serving Southampton and across Hampshire