What insulation adds in E5

69.3 → 77.2

Rating, now → potential

+7.8

Average uplift

£166

Avg saving / yr

23878

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 23878 certificates in E5, the current rating of 69.3 could rise to about 77.2 out of 100. The estimated annual heating cost averages £501 now, and about £336 after the recommended work – an estimated saving of roughly £166 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) – 47.5%
Cavity wall, as built, insulated (assumed) – 22.5%
Cavity wall, filled cavity – 7.5%

Recorded as having no wall insulation: 52.5%.

Roofs

(another dwelling above) – 57.5%
Pitched, no insulation (assumed) – 12.5%
Pitched, no insulation – 5.0%

Recorded as having no roof insulation: 20.0%.

Glazing

Fully double glazed – 94.4%
Mostly double glazing – 5.6%

Main heating

Boiler and radiators, mains gas – 72.5%
Room heaters, electric – 12.5%
Community scheme – 5.0%

Which streets need it most

See the streets in E5 with the highest share of homes rated band D or below.

Leakiest streets in E5

Keep exploring

In this area

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