What insulation adds in E18

62.8 → 74.7

Rating, now → potential

+11.9

Average uplift

£218

Avg saving / yr

10208

Certificates

The realistic uplift

Each energy certificate lists the improvements an assessor recommends and the rating the home would reach if they were done. Averaged across 10208 certificates in E18, the current rating of 62.8 could rise to about 74.7 out of 100. The estimated annual heating cost averages £740 now, and about £522 after the recommended work – an estimated saving of roughly £218 a year.

These are the register's own estimates, averaged across many homes; the figure for any one property depends on its fabric and how it is heated.

What the certificates say about the fabric

The most common construction descriptions recorded across these certificates. Percentages are of certificates where the field was recorded.

Walls

Solid brick, as built, no insulation (assumed) – 50.0%
Cavity wall, as built, no insulation (assumed) – 15.0%
Cavity wall, as built, insulated (assumed) – 10.0%

Recorded as having no wall insulation: 70.0%.

Roofs

(another dwelling above) – 40.0%
Flat, limited insulation (assumed) – 12.5%
Pitched, no insulation (assumed) – 10.0%

Recorded as having no roof insulation: 22.5%.

Glazing

Fully double glazed – 70.0%
Some double glazing – 10.0%
Partial double glazing – 10.0%

Main heating

Boiler and radiators, mains gas – 80.0%
Room heaters, electric – 5.0%
Electric storage heaters – 5.0%

Which streets need it most

See the streets in E18 with the highest share of homes rated band D or below.

Leakiest streets in E18

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