What insulation adds in EC2M

58.7 → 69.3

Rating, now → potential

+10.6

Average uplift

£192

Avg saving / yr

177

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 177 certificates in EC2M, the current rating of 58.7 could rise to about 69.3 out of 100. The estimated annual heating cost averages £584 now, and about £392 after the recommended work – an estimated saving of roughly £192 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%
System built, as built, insulated (assumed) – 15.0%
Solid brick, with internal insulation – 12.5%

Recorded as having no wall insulation: 50.0%.

Roofs

(another dwelling above) – 65.0%
Flat, insulated (assumed) – 10.0%
Flat, no insulation (assumed) – 7.5%

Recorded as having no roof insulation: 10.0%.

Glazing

Fully double glazed – 54.5%
Single glazed – 22.7%
Multiple glazing throughout – 9.1%

Main heating

Room heaters, electric – 37.5%
Boiler and radiators, electric – 17.5%
Boiler and underfloor heating, mains gas – 15.0%

Which streets need it most

See the streets in EC2M with the highest share of homes rated band D or below.

Leakiest streets in EC2M

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