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01282 216 886
About
About Us How We Work Our Projects
Services
Retrofit Assessment Solar PV & EESS Heat Pumps Storage Heaters Insulation Commercial Electrical EV Charging Testing & Compliance
Who We Work With
Local Authorities Housing Associations Landlords Commercial Clients Homeowners Utility Providers
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CHiL Framework 01282 216 886 Get In Touch
Electrical contractors & renewable energy installers

One company for your electrical and energy needs.

NICEIC approved electrical contractor and MCS certified renewable energy installer. From commercial rewires and fire alarm systems through to Solar PV, heat pumps and full retrofit programmes, everything is carried out by our own team. Serving local authorities, housing associations, commercial clients and homeowners right across the UK.

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About Us
Built on doing things properly.

We're an NICEIC approved electrical contractor and MCS certified renewable energy installer, founded six years ago with a straightforward idea. One company that takes care of the whole job, from the first survey right through to the final lodgement. That means our people carry out the Solar PV, heat pump, storage heater, insulation and electrical work themselves. All staff are DBS checked.

As a full-service electrical contractor we also carry out rewires, consumer unit upgrades, fire alarm systems, intruder alarms, emergency lighting, periodic inspection and testing, and EV charger installations. Whether it's a funded retrofit programme or a commercial electrical project, the same qualified team delivers the work.

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Adam Cooper
Director
Josh Stevenson
Director
Accreditations and Certifications
MCS Certification
MCS
Microgeneration Certified
NICEIC Approved
NICEIC
Approved Contractor
PAS 2035
PAS 2035
Retrofit Standard
TSI Approved Code
TSI Approved
Consumer Code
ISO Certified
ISO Certified
9001 · 27001 · 45001
SWIP IWI
SWIP IWI
Insulation Warranty
Constructionline
Constructionline
Verified Member
Tesla Energy
Tesla Energy
Certified Installer
MCS Certification
MCS
Microgeneration Certified
NICEIC Approved
NICEIC
Approved Contractor
PAS 2035
PAS 2035
Retrofit Standard
TSI Approved Code
TSI Approved
Consumer Code
ISO Certified
ISO Certified
9001 · 27001 · 45001
SWIP IWI
SWIP IWI
Insulation Warranty
Constructionline
Constructionline
Verified Member
Tesla Energy
Tesla Energy
Certified Installer
Who We Work With
We work with people who want it done properly.
Local authorities, housing associations, landlords, utility providers, commercial clients and homeowners. Whatever the project looks like, we bring the same level of care and the same way of working every time.
Local Authorities
Warm Homes, HUG 1, HUG 2, LAD 1, LAD 2, SHDF and CHiL delivery. We work with councils across Lancashire and nationwide, delivering multi-measure retrofit programmes that are fully compliant and properly looked after from start to finish.
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Housing Associations
Multi-measure energy upgrades across your housing stock. Solar PV, heat pumps, storage heaters, insulation and all electrical works delivered by one company, under one contract, with one team looking after the whole process.
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Utility Providers
We install on your behalf. ECO4 and Great British Insulation Scheme measures delivered against your obligation targets, with full TrustMark lodgement, MCS certification and compliance built in from day one. You set the programme, we deliver the work on the ground.
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Landlords
EPC upgrades and funded energy measures for rental properties. We look after everything from the initial survey through to installation and sign off, so you have one point of contact throughout.
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Commercial
Solar PV, EV charging, battery storage and full electrical contracting for business premises. Fire alarm systems, intruder alarms, emergency lighting, rewires, periodic testing and three-phase installations. NICEIC approved, with design, installation and commissioning all carried out by our own team.
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Homeowners
Solar PV, heat pumps, storage heaters and insulation for your home. MCS certified installations that qualify for the Smart Export Guarantee, along with funded ECO4 upgrades for eligible households.
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CHiL Framework
Cosy Homes in Lancashire. Proud to be part of it.
We're an approved installer on the CHiL framework, the central retrofit delivery scheme managed by Rhea Projects on behalf of 15 Lancashire local authorities.
15
Lancashire councils on the framework
CHiL005
Our registered installer reference
PAS 2035
Assessment and coordination in house
700+
Measures installed through the framework

Every property is technically assessed, installed and certified by our team. Fully compliant with MCS and PAS guidelines, and lodged through TrustMark. The team is in place and the work is well underway.

Through CHiL we deliver multi-measure retrofit covering Solar PV, air source heat pumps, storage heaters, insulation and all associated electrical works.

We're set up and ready for Warm Homes Plan delivery from 2026/27. The accreditations are current, the team is in place and with over 700 measures already installed through CHiL, we have the track record to support it.

Discuss a Retrofit Programme →
What We Deliver Through CHiL
Retrofit Assessment (PAS 2035 qualified)
Retrofit Coordination & programme management
Solar PV installation (MCS certified)
Air source heat pump installation
Storage heater installation
Insulation (internal wall, loft, underfloor)
All associated electrical works (NICEIC)
TrustMark lodgement & full compliance
Framework Local Authorities
Blackburn with Darwen Blackpool Burnley Chorley Fylde Hyndburn Lancaster Lancashire County Council Pendle Preston Ribble Valley Rossendale South Ribble West Lancashire Wyre
Now working with additional partners on 2026/27 Warm Homes Local Grant delivery.
over 700 measures installed and counting. Expanding our framework partnerships across Lancashire and beyond.
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Our Services
Everything under one roof.
From initial retrofit assessments through to installation and compliance, every service here is carried out by our own qualified team.
Retrofit Assessment & Coordination
PAS 2035 qualified Retrofit Assessors and Coordinators on our team. We look after the full pathway, from dwelling surveys and improvement plans through to coordinating measures and lodging the completed work.
PAS 2035
Solar PV & EESS
Domestic and commercial Solar PV systems with electrical energy storage. MCS certified, with design, installation and commissioning all looked after by our team.
MCS Certified
Air Source Heat Pumps
Full ASHP installations for social housing and domestic properties. System design, commissioning and homeowner handover, all MCS certified.
MCS Certified
High Heat Retention Storage Heaters
Quantum and high heat retention storage heater installations, primarily for off gas social housing and ECO funded properties across the UK.
TrustMark
Insulation & Fabric First
External wall, internal wall, cavity, loft and underfloor insulation. All work carried out to PAS 2035 standards under funded retrofit programmes.
PAS 2035
Commercial & Industrial Electrical
Rewires, fire alarms, intruder alarms, emergency lighting, three-phase installations and periodic testing for commercial and industrial premises.
NICEIC
EV Charging Infrastructure
Workplace and residential electric vehicle charging points. Single units through to multi-point installations with full electrical design.
Design & Install
Testing & Compliance
Electrical inspection condition reports, PAT testing, emergency lighting and fire alarm systems. Full certification and documentation provided.
NICEIC
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How We Work
How we look after your project.
Most retrofit programmes involve three or four different companies. An assessor, a coordinator, separate installers for each measure, and somebody in the middle trying to hold it all together. We take a different approach. We do it all ourselves, with our own people, under one roof.
We assess the property ourselves
Our own PAS 2035 Retrofit Assessors survey every dwelling and put together the improvement plan. Because the assessor and the installer work for the same company, the recommendations reflect what can actually be delivered on site.
PAS 2035 In-House
We coordinate the whole programme
A dedicated Retrofit Coordinator looks after your programme from the first survey to the final lodgement. Scheduling, measure sequencing, quality checks and householder communications all sit with one person who knows the job inside out.
Single Point of Contact
We install with our own team
Solar PV, air source heat pumps, storage heaters, insulation and all associated electrical works. Every measure is carried out by Three Phase employees. The same people come back each day, they know the site, and they take pride in the work.
Our Own Employees
Compliance built into the process
TrustMark lodgement, MCS certification, EPC updates and all supporting documentation. Every job is photographed, evidenced and audit-ready.
Fully Audit Ready
We reach the places others find difficult
From Scotland to Penzance, properties that are off gas and hard to get to. We look after the logistics and accommodation so our teams can deliver the same standard of work wherever the property is.
Islands and Remote
One point of contact, start to finish
If something needs attention on site, you ring one number. If a programme needs adjusting, one person makes the decision. There's no chasing between separate companies because everyone involved works for us.
Full Accountability
Why does working with one company matter?
Most retrofit programmes look like the left column. Ours look like the right.
The Usual Setup
Separate assessor, coordinator and installer, each working for a different company with no single point of accountability
Agency labour and subcontractors on site, with different people turning up each week and no continuity for the householder
Compliance spread across multiple parties, leading to lodgement delays, gaps in documentation and avoidable audit failures
When something goes wrong on site, nobody is quite sure whose responsibility it is to put it right
Three Phase
Assessment, coordination and installation all carried out by one company, with full accountability from start to finish
Every person on site is a Three Phase employee, the same team each week, building trust with the householders they're working for
TrustMark lodgement, MCS, EPC and all documentation taken care of as part of the process, audit-ready
One number to ring, one person who makes the decision, and it gets sorted
Let's Talk →
Recent Projects
A few of the projects we're proud of.
From council retrofit programmes to commercial Solar PV installations and island energy upgrades, here's a snapshot of what we've been working on.
Air Source Heat Pump Installation
Multi-measure retrofit across a portfolio of council properties. Solar PV, air source heat pumps, storage heaters and insulation delivered under HUG 1, HUG 2, LAD 1, LAD 2 and the Warm Homes Local Grant, with full PAS 2035 compliance from initial assessment through to lodgement.
Rooftop Solar PV Installation
Design and installation of a rooftop Solar PV system with battery storage and EV charging for a commercial premises in Lancashire. Full electrical design, DNO application and commissioning handled by our team.
Ground Mount Solar PV Array
Heat pump and Solar PV installations across off-gas island properties in some of the hardest-to-reach parts of the country. We looked after the full project end to end, including ferry logistics, materials coordination and local accommodation for our teams.
See More Projects → Tell Us About Your Project →
Get In Touch
Talk to us about your next project.

Whether you're a local authority looking at Warm Homes delivery, a housing association planning energy upgrades, or a commercial client with an electrical project, drop us a line or give us a ring. We'll have a straightforward conversation about what you need and how we can help.

01282 216 886
info@threephasecontractors.com
5 Landwick Court, Metcalf Drive, Altham, Lancashire BB5 5GY
What happens next
1We come back to you within one working day
2We discuss your project and what you need
3You get a clear proposal with no obligation
Send us an enquiry
We'll come back to you within one working day.