Energy Giants
Retrofit insulation materials on a construction project

Construction & Retrofit Excellence

Transforming UK houses into high performance, future proof homes. We combine traditional construction craftsmanship with cutting edge green technology to deliver energy efficient solutions that reduce bills and carbon footprints.

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Why choose us

Why Choose Energy Giants

Skilled Workforce

Over 150 trained professionals delivering quality installations across the UK.

Nationwide Coverage

Operating across England, Scotland, and Wales with regional teams ready to mobilise.

Accreditations

PAS 2038 compliant.

End to End Support

From initial survey through to installation, aftercare, and guarantee registration.

Customer Focused

Dedicated project managers and clear communication throughout every project.

Retrofit services

What we install

All of our retrofit installations are covered by our own guarantees, giving you peace of mind that your investment is protected for up to 25 years.

Flat roof insulation on a UK property

Flat Roof Insulation (FRI)

Our warm flat roof insulation system is installed on top of the existing roof deck, creating a thermally efficient barrier that significantly reduces heat loss through the roof.

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Internal wall insulation being installed in a home

Internal Wall Insulation (IWI)

We offer multiple IWI systems including multiple internal wall insulation to suit different property types. Our installations include radiator extensions, pipe alterations, and all associated works.

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Room in roof loft conversion space

Room in Roof Insulation (RIR)

Using certified insulation systems, we insulate rooms built into the roof space. Our service includes optional extras such as new stud walls, plasterboard, and skim finishes.

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Cavity wall insulation being installed at a property

Cavity Wall Insulation

We install cavity wall insulation by drilling and injecting bonded polystyrene bead into the cavity, providing excellent thermal performance and moisture resistance.

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Loft insulation material ready for installation

Loft Insulation

A quarter of heat is lost through the roof in an uninsulated home. Our loft insulation service helps homeowners save significantly on heating bills year after year.

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Under floor insulation beneath a suspended timber floor

Under Floor Insulation

Insulating beneath suspended floors cuts draughts and heat loss, making the ground floor noticeably warmer and cheaper to heat.

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Accreditations

Accreditations & Compliance

5,000+
Homes Upgraded
25+
Year Guarantees
150+
Skilled Professionals
Ready to start?

Start Your Construction Project

Get in touch for a free consultation. Our team will assess your property and recommend the best energy efficient solutions for your needs.

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