Programmes delivered for
We work as a subcontractor to tier one retrofit contractors, and our Managing Director, Miles Sharples, has directed programmes for these local authorities, housing providers, delivery partners and energy suppliers. More about Miles →
Where we work
Retrofit programmes our team has delivered and project-directed for councils and housing providers across England. Hover or tap a name to find it on the map, and open the case studies for the full story.
Fully trained, accredited professional tradespeople ready for any project scale.
UK wide operations with modern equipped vehicles for efficient project delivery.
PAS 2030:2023 certified for flat roof insulation, MCS certified for solar PV and battery storage, TrustMark registered, and insurance backed guarantees on our installations.
Works as an extension of your client teams from start to completion.
Professionalism and respect in occupied homes, every time.
Every measure surveyed, photographed before, during and after, and handed over with the paperwork your retrofit coordinator needs.
All installations include pre, mid and post photography and an insurance backed guarantee.
On site
No stock images here. Torentum Court in Fleetwood before and after our fifteen flat roofs, and the warm roof build up our crews put down on every job, photographed as it went in.
Every property is photographed before, during and after for the retrofit file. See every case study →
Every accreditation below is issued by an independent body, has a published scope, and can be checked. We say what each one covers rather than waving a logo.
The British Standard for installing energy efficiency measures in existing buildings, and the certification government backed retrofit requires for each measure. Certified measure: B5 flat roof insulation. Certificate SICI23052 P2030 1, held by Efficient Energy Systems Ltd.
The government endorsed quality scheme for work in and around the home. Registration is what a funded programme checks first, and what gives the resident a route to redress if anything goes wrong.
Accredited under the Bluedrop Insurance Backed Guarantee facility as an Accredited Installation Management Company, so the workmanship guarantee on our installations is insured rather than resting on us alone.
Real figures, real dates, our scope stated exactly. Read them the way a procurement team would.
768.75 m² of new warm roof and 179 m of tiles lifted and reinstated inside EcoGee’s programme for Regenda Homes, with residents at home throughout.
Read the case study →
51 occupied council homes by July 2026 under a framework programme running to 2028, led end to end by Miles Sharples.
Read the case study →
Heating, ventilation, windows, doors and loft insulation across occupied social housing, coordinated in house to PAS 2035.
Read the case study →
An in roof array fitted as the pub was re slated, with 35.72 kWh of storage behind it.
Read the case study →
A worn felt garage roof rebuilt as a warm roof: vapour control layer, 140 mm of PIR, new deck and EPDM rubber.
Read the case study →
A stained, ponding felt roof over a kitchen extension rebuilt as a warm roof with 140 mm of PIR and EPDM, in one working day.
Read the case study →
An L shaped extension roof rebuilt over two days as a warm roof: 140 mm of PIR, new OSB, EPDM rubber and new white fascias.
Read the case study →Need it for a tender? Download the Torentum Court one page summary (PDF)
Showing our 5-star reviews, quoted as written
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
Martin P. · Internal wall insulation, Bath, October 2026
Read the full review (opens in a new tab) →
TrustpilotLee 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!
Lauren S. · 8 October 2026
Read the full review (opens in a new tab) →Energy Giants is led by Managing Director Miles Sharples, who has spent twenty years delivering retrofit at scale: area wide programmes for local authorities, stock investment for housing associations, and supplier funded schemes where the compliance file matters as much as the install. That experience is what a subcontractor brings to your programme, along with the crews.
We install across the UK from our HQ in Clitheroe and offices in Manchester and London, on everything from a single flat roof to a whole scheme, and we are as comfortable in a Victorian terrace as on a 1960s independent living block.
Who we have worked with, in full →
For subcontracting enquiries, contact us directly.
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