What insulation adds in RM14

66.5 → 81.4

Rating, now → potential

+14.9

Average uplift

£235

Avg saving / yr

9186

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 9186 certificates in RM14, the current rating of 66.5 could rise to about 81.4 out of 100. The estimated annual heating cost averages £892 now, and about £657 after the recommended work – an estimated saving of roughly £235 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) – 55.0%
Cavity wall, filled cavity – 20.0%
Cavity wall, as built, no insulation (assumed) – 7.5%

Recorded as having no wall insulation: 62.5%.

Roofs

Pitched, 250 mm loft insulation – 12.5%
(another dwelling above) – 12.5%
Pitched, no insulation (assumed) – 7.5%

Recorded as having no roof insulation: 10.0%.

Glazing

Fully double glazed – 82.8%
Mostly double glazing – 13.8%
Fully triple glazed – 3.4%

Main heating

Boiler and radiators, mains gas – 87.5%
Room heaters, electric – 5.0%
Ground source heat pump, underfloor, electric – 2.5%

Which streets need it most

See the streets in RM14 with the highest share of homes rated band D or below.

Leakiest streets in RM14

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