What insulation adds in E20
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 9445 certificates in E20, the current rating of 83.7 could rise to about 83.9 out of 100. The estimated annual heating cost averages £184 now, and about £184 after the recommended work – an estimated saving of roughly £0 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
- Average thermal transmittance 0.19 W/m²K – 18.8%
- Average thermal transmittance 0.18 W/m²K – 13.8%
- System built, as built, insulated (assumed) – 10.0%
Recorded as having no wall insulation: 0.0%.
Roofs
- (other premises above) – 67.5%
- (another dwelling above) – 10.0%
- Average thermal transmittance 0.10 W/m²K – 7.5%
Recorded as having no roof insulation: 0.0%.
Glazing
- Fully double glazed – 100.0%
Main heating
- Community scheme – 100.0%
Which streets need it most
See the streets in E20 with the highest share of homes rated band D or below.
Leakiest streets in E20Keep 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