What insulation adds in W5
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 30548 certificates in W5, the current rating of 65.8 could rise to about 75.3 out of 100. The estimated annual heating cost averages £657 now, and about £481 after the recommended work – an estimated saving of roughly £176 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) – 46.2%
- Cavity wall, filled cavity – 15.0%
- Cavity wall, as built, insulated (assumed) – 10.0%
Recorded as having no wall insulation: 58.8%.
Roofs
- (another dwelling above) – 42.5%
- Pitched, no insulation (assumed) – 11.2%
- Pitched, 150 mm loft insulation – 7.5%
Recorded as having no roof insulation: 11.2%.
Glazing
- Fully double glazed – 71.7%
- Single glazed – 8.7%
- Some double glazing – 4.3%
Main heating
- Boiler and radiators, mains gas – 76.2%
- Community scheme – 10.0%
- Electric storage heaters – 5.0%
Which streets need it most
See the streets in W5 with the highest share of homes rated band D or below.
Leakiest streets in W5Keep 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