What insulation adds in W10

71.8 → 78.3

Rating, now → potential

+6.5

Average uplift

£96

Avg saving / yr

14611

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 14611 certificates in W10, the current rating of 71.8 could rise to about 78.3 out of 100. The estimated annual heating cost averages £363 now, and about £267 after the recommended work – an estimated saving of roughly £96 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) – 35.8%
Cavity wall, as built, insulated (assumed) – 25.0%
System built, as built, insulated (assumed) – 12.5%

Recorded as having no wall insulation: 43.3%.

Roofs

(another dwelling above) – 54.2%
Flat, insulated (assumed) – 10.0%
Flat, no insulation (assumed) – 7.5%

Recorded as having no roof insulation: 12.5%.

Glazing

Fully double glazed – 81.8%
Single glazed – 10.4%
Some double glazing – 2.6%

Main heating

Boiler and radiators, mains gas – 53.3%
Electric storage heaters – 19.2%
Community scheme – 15.0%

Which streets need it most

See the streets in W10 with the highest share of homes rated band D or below.

Leakiest streets in W10

Keep exploring

In this area

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