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Retrofit knowledge,written like a person.

Plain-language guides to the technology, the grants, and the trade-offs of upgrading a UK home. We answer the question, then we tell you where the answer breaks down.

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Start with what’s on your mind.

Six subject areas, each written to answer the question first, then to tell you honestly where the answer stops.

An air source heat pump beside a UK home

Heat pumps

Heat pumps

The technology, when it suits, when it doesn't, including the cold-weather question and what makes a UK install actually perform.

5 articles
Roof-mounted solar panels with a home battery

Solar & battery

Solar & battery

Solar PV, batteries, and the maths behind self-consumption, including the seasonal generation question.

3 articles
Insulation being fitted in a UK property

Insulation

Insulation

Cavity, solid wall, loft, internal vs external: which measure suits which fabric, and where the moisture risks sit.

3 articles
A modern wall-mounted gas boiler

Boilers

Boilers & central heating

Combi vs system vs regular, the repair-or-replace question, and what's actually been announced about the end of new gas boilers.

3 articles
A UK home of the kind eligible for retrofit funding

Grants

Grants & finance

BUS eligibility, application timing, and how grant money flows in practice.

See the overview
A street of typical UK terraced homes

UK homes

UK homes

Property archetypes, on-gas vs off-gas, EPC interpretation: what's specific to your home.

4 articles

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