What insulation adds in RM9

64.9 → 80.5

Rating, now → potential

+15.6

Average uplift

£159

Avg saving / yr

16630

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 16630 certificates in RM9, the current rating of 64.9 could rise to about 80.5 out of 100. The estimated annual heating cost averages £581 now, and about £422 after the recommended work – an estimated saving of roughly £159 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) – 32.5%
Cavity wall, as built, no insulation (assumed) – 32.5%
Cavity wall, filled cavity – 10.0%

Recorded as having no wall insulation: 70.0%.

Roofs

Pitched, 100 mm loft insulation – 25.0%
(another dwelling above) – 12.5%
Pitched, 50 mm loft insulation – 10.0%

Recorded as having no roof insulation: 5.0%.

Glazing

Fully double glazed – 88.2%
Partial double glazing – 5.9%
Mostly double glazing – 5.9%

Main heating

Boiler and radiators, mains gas – 82.5%
Electric storage heaters – 7.5%
Community scheme – 5.0%

Which streets need it most

See the streets in RM9 with the highest share of homes rated band D or below.

Leakiest streets in RM9

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