What insulation adds in E15

72.5 → 79.8

Rating, now → potential

+7.3

Average uplift

£74

Avg saving / yr

29532

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 29532 certificates in E15, the current rating of 72.5 could rise to about 79.8 out of 100. The estimated annual heating cost averages £387 now, and about £313 after the recommended work – an estimated saving of roughly £74 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) – 17.5%
Cavity wall, as built, insulated (assumed) – 15.0%
Timber frame, as built, insulated (assumed) – 7.5%

Recorded as having no wall insulation: 27.5%.

Roofs

(another dwelling above) – 32.5%
(other premises above) – 25.0%
Pitched, 75 mm loft insulation – 7.5%

Recorded as having no roof insulation: 7.5%.

Glazing

Fully double glazed – 87.5%
Some double glazing – 6.2%
Mostly double glazing – 6.2%

Main heating

Boiler and radiators, mains gas – 42.5%
Community scheme – 35.0%
Room heaters, electric – 7.5%

Which streets need it most

See the streets in E15 with the highest share of homes rated band D or below.

Leakiest streets in E15

Keep exploring

In this area

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