What insulation adds in WC2A

67.0 → 76.3

Rating, now → potential

+9.3

Average uplift

£299

Avg saving / yr

116

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 116 certificates in WC2A, the current rating of 67.0 could rise to about 76.3 out of 100. The estimated annual heating cost averages £734 now, and about £435 after the recommended work – an estimated saving of roughly £299 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) – 42.5%
Solid brick, with internal insulation – 12.5%
Cavity wall, as built, insulated (assumed) – 10.0%

Recorded as having no wall insulation: 45.0%.

Roofs

(another dwelling above) – 47.5%
Pitched, no insulation – 10.0%
Pitched, insulated (assumed) – 7.5%

Recorded as having no roof insulation: 17.5%.

Glazing

Fully double glazed – 45.2%
Single glazed – 29.0%
Full secondary glazing – 12.9%

Main heating

Boiler and radiators, mains gas – 42.5%
Boiler and underfloor heating, mains gas – 15.0%
Boiler and radiators, electric – 12.5%

Which streets need it most

See the streets in WC2A with the highest share of homes rated band D or below.

Leakiest streets in WC2A

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