What insulation adds in W13

65.7 → 75.8

Rating, now → potential

+10.1

Average uplift

£199

Avg saving / yr

17907

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 17907 certificates in W13, the current rating of 65.7 could rise to about 75.8 out of 100. The estimated annual heating cost averages £640 now, and about £441 after the recommended work – an estimated saving of roughly £199 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%
Cavity wall, as built, insulated (assumed) – 12.5%
Cavity wall, as built, no insulation (assumed) – 7.5%

Recorded as having no wall insulation: 60.0%.

Roofs

(another dwelling above) – 37.5%
Pitched, no insulation (assumed) – 17.5%
(other premises above) – 10.0%

Recorded as having no roof insulation: 27.5%.

Glazing

Fully double glazed – 70.8%
Single glazed – 12.5%
Partial double glazing – 8.3%

Main heating

Boiler and radiators, mains gas – 52.5%
Community scheme – 30.0%
Room heaters, electric – 7.5%

Which streets need it most

See the streets in W13 with the highest share of homes rated band D or below.

Leakiest streets in W13

Keep exploring

In this area

Leakiest streets in W13 Leaky The leakiest streets here