What insulation adds in W9

69.6 → 75.2

Rating, now → potential

+5.7

Average uplift

£93

Avg saving / yr

227

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 227 certificates in W9, the current rating of 69.6 could rise to about 75.2 out of 100. The estimated annual heating cost averages £351 now, and about £258 after the recommended work – an estimated saving of roughly £93 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) – 48.8%
Cavity wall, as built, no insulation (assumed) – 18.8%
System built, as built, no insulation (assumed) – 11.2%

Recorded as having no wall insulation: 80.0%.

Roofs

(another dwelling above) – 62.5%
Flat, no insulation (assumed) – 10.0%
Pitched, no insulation (assumed) – 8.8%

Recorded as having no roof insulation: 23.8%.

Glazing

Fully double glazed – 76.5%
Single glazed – 13.7%
Some double glazing – 3.9%

Main heating

Community scheme – 56.2%
Boiler and radiators, mains gas – 43.8%

Which streets need it most

See the streets in W9 with the highest share of homes rated band D or below.

Leakiest streets in W9

Keep exploring

In this area

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