4 Woodside Close

What the assessor found

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

• Walls

  Solid brick, as built, no insulation (assumed)

  Very poor

• Roof

  Pitched, 250 mm loft insulation

  Good

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, room thermostat and TRVs

  Good

• Hot water

  From main system

  Good

• Lighting

  Low energy lighting in 86% of fixed outlets

  Very good

The assessor's estimates at the energy prices in use when the certificate was made (2012), 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

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £109 a year

   Rating after68D
2. 2

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £31 a year

   Rating after71C
3. 3

   Flue gas heat recovery in conjunction with boiler

   Typical cost £900 · saves about £14 a year

   Rating after72C
4. 4

   Heat recovery system for mixer showers

   Typical cost £585–£725 · saves about £10 a year

   Rating after72C
5. 5

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £9,000–£14,000 · saves about £242 a year

   Rating after85B
6. 6

   Wind turbine

   Typical cost £1,500–£4,000 · saves about £19 a year

   Rating after86B

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