6 Robins Close

What the assessor found

Each part of the home, with the certificate's own energy efficiency rating.

• Walls

  Cavity wall, filled cavity

  Average

• Roof

  Pitched, 250 mm loft insulation

  Good

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Windows

  Fully double glazed

  Average

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, no room thermostat

  Very poor

• Hot water

  From main system

  Good

• Lighting

  Low energy lighting in 70% of fixed outlets

  Very good

• Second heating

  Portable electric heaters (assumed)

  Not rated on the certificate

The assessor's estimates at the energy prices in use when the certificate was made (2021), for a typical household. Today's bills will differ.

Improvements the certificate recommends

In the certificate's order. Each rating assumes the steps before it are done.

1. 1

   Cavity wall insulation

   Typical cost £500–£1,500 · saves about £91 a year

   Rating after51E
2. 2

   Floor insulation (suspended floor)

   Typical cost £800–£1,200 · saves about £79 a year

   Rating after53E
3. 3

   Floor insulation (solid floor)

   Typical cost £4,000–£6,000 · saves about £71 a year

   Rating after55D
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £30 · saves about £22 a year

   Rating after56D
5. 5

   Upgrade heating controls

   Typical cost £350–£450 · saves about £190 a year

   Rating after62D
6. 6

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £292 a year

   Rating after70C
7. 7

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £37 a year

   Rating after71C
8. 8

   Replacement glazing units

   Typical cost £1,000–£1,400 · saves about £46 a year

   Rating after72C
9. 9

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £3,500–£5,500 · saves about £335 a year

   Rating after81B

Costs and savings are the certificate's own, as estimated when it was made.