3 Cartwright Walk

What the assessor found

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

• Walls

  Cavity wall, as built, insulated (assumed)

  Good

• Roof

  Pitched, 100 mm loft insulation

  Average

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer and room thermostat

  Average

• Hot water

  From main system

  Average

• Lighting

  No low energy lighting

  Very poor

The assessor's estimates at the energy prices in use when the certificate was made (2014), 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

   Floor insulation

   Typical cost £800–£1,200 · saves about £41 a year

   Rating after62D
2. 2

   Add additional 80 mm jacket to hot water cylinder

   Typical cost £15–£30 · saves about £10 a year

   Rating after63D
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £70 · saves about £31 a year

   Rating after65D
4. 4

   Upgrade heating controls

   Typical cost £350–£450 · saves about £21 a year

   Rating after66D
5. 5

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £113 a year

   Rating after71C
6. 6

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £36 a year

   Rating after73C
7. 7

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £58 a year

   Rating after76C
8. 8

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £9,000–£14,000 · saves about £261 a year

   Rating after89B
9. 9

   Wind turbine

   Typical cost £1,500–£4,000 · saves about £21 a year

   Rating after90B

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