What insulation adds in SE13

73.2 → 78.8

Rating, now → potential

+5.6

Average uplift

£75

Avg saving / yr

978

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 978 certificates in SE13, the current rating of 73.2 could rise to about 78.8 out of 100. The estimated annual heating cost averages £392 now, and about £317 after the recommended work – an estimated saving of roughly £75 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) – 27.5%
Cavity wall, filled cavity – 20.0%
Cavity wall, as built, insulated (assumed) – 20.0%

Recorded as having no wall insulation: 40.0%.

Roofs

(another dwelling above) – 47.5%
Pitched, 150 mm loft insulation – 7.5%
Pitched, insulated (assumed) – 5.0%

Recorded as having no roof insulation: 5.0%.

Glazing

Fully double glazed – 100.0%

Main heating

Boiler and radiators, mains gas – 80.0%
Community scheme – 20.0%

Which streets need it most

See the streets in SE13 with the highest share of homes rated band D or below.

Leakiest streets in SE13

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