What insulation adds in W2

62.0 → 72.8

Rating, now → potential

+10.8

Average uplift

£208

Avg saving / yr

2746

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 2746 certificates in W2, the current rating of 62.0 could rise to about 72.8 out of 100. The estimated annual heating cost averages £658 now, and about £450 after the recommended work – an estimated saving of roughly £208 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) – 85.0%
Solid brick, with internal insulation – 5.0%
Timber frame, as built, no insulation (assumed) – 2.5%

Recorded as having no wall insulation: 92.5%.

Roofs

(another dwelling above) – 77.5%
Pitched, no insulation (assumed) – 5.0%
Flat, limited insulation – 5.0%

Recorded as having no roof insulation: 7.5%.

Glazing

Single glazed – 45.8%
Fully double glazed – 37.5%
Some double glazing – 8.3%

Main heating

Boiler and radiators, mains gas – 47.5%
Room heaters, electric – 27.5%
Community scheme – 10.0%

Which streets need it most

See the streets in W2 with the highest share of homes rated band D or below.

Leakiest streets in W2

Keep exploring

In this area

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