More than 42,000 homes across the London Borough of Ealing have been rated below an Energy Performance Certificate (EPC) grade C according to new research analysing government data on the energy efficiency of homes.
The study, carried out by sheet materials supplier Cut Plastic Sheeting using figures from the Energy Performance of Buildings Register, found that 44.14% of assessed homes in the borough fell below a C rating, while 55.86% achieved C or above.
Of the 96,878 domestic EPC certificates issued in Ealing between January 2016 and December 2025, 197 homes (0.20%) achieved the top A rating, 19,343 (19.97%) were rated B and 34,577 (35.69%) received a C rating. Below that threshold, 33,622 homes (34.71%) were rated D, 7,856 (8.11%) were rated E, 909 (0.94%) were rated F and 374 (0.39%) received the lowest G rating.
The figures place Ealing 16th out of London’s 33 boroughs and 85th out of 346 local authority areas across England and Wales.
Although the borough performed slightly better than the England and Wales average, where 51.66% of homes achieved a C rating or above, it fell just below the London average of 56.11%.
Across England and Wales, almost half of assessed homes remain below EPC grade C, the standard landlords are expected to meet by October 2030.
Daniel Southern, managing director of Cut Plastic Sheeting, said Ealing’s figures showed there was “still meaningful work to do” to improve the energy efficiency of homes.
He said measures such as draught proofing, energy-efficient lighting and hot water cylinder insulation could help improve ratings, while larger upgrades including loft insulation, improved heating controls and solar panels can deliver further gains.
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