What insulation adds in EC4A
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 741 certificates in EC4A, the current rating of 63.0 could rise to about 74.3 out of 100. The estimated annual heating cost averages £433 now, and about £300 after the recommended work – an estimated saving of roughly £134 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) – 37.5%
- Cavity wall, as built, insulated (assumed) – 12.5%
- System built, as built, insulated (assumed) – 7.5%
Recorded as having no wall insulation: 45.0%.
Roofs
- (another dwelling above) – 55.0%
- (other premises above) – 20.0%
- Pitched, no insulation (assumed) – 7.5%
Recorded as having no roof insulation: 7.5%.
Glazing
- Fully double glazed – 71.4%
- Single glazed – 21.4%
- Full secondary glazing – 7.1%
Main heating
- Room heaters, electric – 40.0%
- Community scheme – 35.0%
- Electric underfloor heating – 7.5%
Which streets need it most
See the streets in EC4A with the highest share of homes rated band D or below.
Leakiest streets in EC4AKeep exploring
Biggest average savings nearby
- What insulation adds in RM11 ~£463/yr average saving
- What insulation adds in TN14 ~£444/yr average saving
- What insulation adds in EC4Y ~£405/yr average saving
- What insulation adds in KT8 ~£391/yr average saving
- What insulation adds in N14 ~£379/yr average saving
- What insulation adds in RM4 ~£371/yr average saving
- What insulation adds in HA7 ~£342/yr average saving
- What insulation adds in CR3 ~£328/yr average saving