The government has confirmed that most privately rented homes in England will need an EPC rating of C or better by 2030, subject to a cost cap. With millions of rentals currently rated D or below, landlords who plan early get the work done cheaper and avoid the rush.
Today the legal minimum for letting a home is EPC E. The confirmed direction of travel is EPC C for new tenancies and then all existing tenancies by 1 October 2030, with a cost cap so landlords aren't forced into unlimited spending. Exemptions will exist for properties that genuinely can't reach C within the cap — but they'll need evidence, which starts with a proper assessment.
Every home is different, but the measures that most reliably move a D or E to a C are fabric and heating improvements, roughly in this order of value:
Loft top-up to 270mm, cavity wall fill or internal wall insulation on solid-wall homes — the biggest single EPC gains.
An efficient boiler or heat pump with a full set of controls (room stat, TRVs, programmer) scores strongly.
Double or secondary glazing and draught proofing cut losses and improve comfort scores.
Cheap quick wins — LED lighting throughout and an insulated cylinder.
The right way to plan this is a PAS 2035 retrofit assessment: it models the property, sets out the improvement plan in the right order, and keeps you clear of unintended consequences like damp and condensation — which matter even more under Awaab's Law.
Depending on the tenant and property, measures may be fundable through ECO4, the Great British Insulation Scheme, local-authority flexible eligibility (LA Flex) or the Boiler Upgrade Scheme. Criteria change regularly — we check what applies before you commit to anything.
First, get a current EPC so you know your starting point. Second, if you're D or below, commission a retrofit assessment to map the cheapest compliant route to C. Third, phase the works — insulation and draught-proofing at tenancy changeovers, heating when the current system ages out. SparkTricity delivers the whole chain in-house: EPCs, PAS 2035 retrofit, occupancy and ventilation assessments, and the certified installation of insulation, glazing, ventilation and heating-adjacent measures across London and the South East.
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Guidance only, not legal advice. Check current requirements on gov.uk landlord guidance. Try our energy saving calculator for indicative savings.
EPCs, retrofit assessments and certified installation — one accountable team.
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