Read this review on Trustpilot (opens in a new tab) →Lee and Josh were lovely people they told me what was happening from start to finish and I’m very happy with the result would highly recommend them thank you again for all your hard work!
Retrofit for housing providers, councils and main contractors
Insulation, roofs, windows, heating and solar PV installed in occupied homes across the UK, with the photographs and handover file your retrofit coordinator and funder need. Led by Miles Sharples, with a team trusted by local authorities from Northumberland to Bath, and by housing associations and main contractors.
Torentum Court, Fleetwood: fifteen flat roofs insulated
Fabric first retrofit of occupied homes, with resident liaison and a handover file your retrofit coordinator and funder can audit.
Retrofit for housing providers → Main contractorsFlat roofs, internal walls, rooms in roof, cavities and lofts, sequenced with your other trades and photographed for the file.
Retrofit sub contracting → HomeownersThe same crews and the same standards, for one house. A free survey in person and a straight answer on what is worth doing.
For your home ↓Our team has delivered retrofit for
Who we have worked with →
What we install
Ventilation first, then the fabric, the openings and the roof, then the heating and the solar: the order that keeps a warmer home dry and gets it to band C without the heating being sized for a house that leaks. Pick a measure to see how we install it.
Running a programme? We price measure by measure and install whole house packages. How we run whole house retrofit →
Track record
The funding route, the measures, the scale and the value of the programmes our team has delivered, so you can see the fit before you ring. Every row has a full case study.
| Client | Funding | Measures | Scale | Value |
|---|---|---|---|---|
| Durham County CouncilCounty Durham | Green Homes Grant LAD2, with council funding | Wall, loft and flat roof insulation, ventilation, solar PV. 690 measures | 250 homes | About £1m |
| North Star HousingDarlington | Social Housing Decarbonisation Fund, wave 2 | Brick effect wall insulation with new windows and doors, cavity, flat roof and loft insulation, heat pumps, ventilation | 100 homes | £350k |
| City of York CouncilYork | Home Upgrade Grant, phase 2 | Off gas homes: room in roof, internal wall, cavity and loft insulation, heat pumps, solar PV, ventilation | 60 homes | £600k |
| Kirklees CouncilWest Yorkshire | Council housing framework, running to 2028 | Failed cavity fill extracted, walls dried and refilled | 51 homes by July 2026 | £200k |
| Torentum Court, Regenda HomesFleetwood | Our flat roof package in a £700k programme | 768 m² of warm roof and 179 m of tiles reinstated, residents at home | 15 roofs | Our package |
| 460+ homes across four council and housing programmes, and £2.1m of programme value across five. | ||||
Programmes led by Miles Sharples, Managing Director of Energy Giants. Measures installed by a competent, compliant workforce. View our accreditations and policies.
One page summaries for tenders →How a programme runs
The same sequence on a single block or a thousand homes, so the retrofit coordinator, the funder and the residents always know what happens next.
Send us the stock, the measures and the funding route. We come back with questions, not a brochure.
Every property surveyed in person and photographed, measure by measure, before anything is priced.
A competent, compliant workforce and an office team who handle resident liaison, sequenced with your other trades.
Occupied homes, residents at home. Photographs before, during and after on every property.
A file for the coordinator and the funder: photographs, certificates, guarantees and lodgement evidence.
Credentials
Every credential has a number, a scope and an expiry date, and you can check each one yourself. We say what each covers rather than waving a logo.
Certified for flat roof insulation (measure B5). Certificate SICI23052 P2030 1, valid to 31 August 2027.
View the certificate →Registered business, licence 4257305. The quality scheme that government funded retrofit checks first.
Check the register →Accredited Installation Management Company under the Bluedrop Insurance Backed Guarantee facility.
View the accreditation →Gas Safe Register No. 986000, for domestic natural gas and LPG work.
Check the register →For solar PV and battery storage. Certificate SICI23052 MCS 1, valid until 22 September 2027.
View the certificate →
Who you deal with
Energy Giants is led by Miles Sharples, with a team that brings decades of combined experience delivering retrofit at scale for local authorities, housing associations, main contractors and energy suppliers.
That experience is why a single house gets the same survey, paperwork and sign off as a thousand home scheme. The crews on site are ours, the office team who answer the phone are ours, and the handover file is checked before it leaves the building.
For homeowners
The crews who work on council and housing programmes also work on single homes. A free survey in person, an itemised quote, and a straight answer if something is not worth doing.
Lofts, walls, floors and flat roofs, and whether a Warm Homes grant could pay for it.
Insulation for your home →
Designed around your roof and your usage, with 0% VAT and every certificate in the handover pack.
Solar for your home →
First time central heating, boiler replacement and heat pumps, sized for the house once it is insulated.
Heating for your home →
Leaks, slipped slates, gutters and flat roofs, with a 24 hour emergency line across East Lancashire.
Roofing for your home →Generate your own power and store it with a battery system we trust. Keep more of what your panels make, use it after dark and rely less on the grid.
Store the energy your panels generate and power your home into the evening. Powerwall 3 combines the battery and the solar inverter in a single unit, so there is less kit on the wall.
Get a Powerwall 3 quoteA complete solar and storage system, supplied and installed. Flexible battery storage that scales to your home and the way you use energy.
Battery storage from a name you already know, keeping more of your solar in your home and less of it going back to the grid.
Get a Duracell Energy quoteBatteries are supplied and installed by Energy Giants. All offers are subject to eligibility, survey and availability.
Our customers review us on Google and on Trustpilot, an independent review site. Every review here is quoted as it was written.
Showing our 5-star reviews
Read this review on Trustpilot (opens in a new tab) →Lee and Josh were lovely people they told me what was happening from start to finish and I’m very happy with the result would highly recommend them thank you again for all your hard work!
Read this review on Google (opens in a new tab) →We had Niki and dom arrive at our house to insulate our walls they were very professional , did an amazing job both worked extremely hard even staying late to make sure the rooms were all safe and clean before they left can’t believe how quickly they got the job done was very impressed with them both thank you Niki and dom for amazing job also what lovely people
Retrofit funding, explained
Government schemesThe £15 billion Warm Homes Plan explainedWhat the plan funds, and how the money reaches homes through councils and social landlords.
Our newsWe are hiring nine people as retrofit funding moves to councilsWhy we are growing a competent, compliant workforce of insulation installers, plasterers, roofers and decorators.
ProcurementHow public sector solar actually gets boughtThe frameworks, the funding routes and the questions to settle before anyone designs anything.
Housing providers, councils and main contractors can email Miles Sharples directly or send a programme brief. Homeowners, tell us about your home and we will ring you back to book a free survey.
Occasional news on retrofit funding, insulation, solar and home energy. Unsubscribe at any time. Privacy policy