48 Chalkstone Close

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, 75 mm loft insulation

  Average

• Floor

  (other premises below)

  Not rated on the certificate

• Heating

  Room heaters, electric

  Very poor

• Heating controls

  Programmer and appliance thermostats

  Good

• Hot water

  Electric immersion, standard tariff

  Very poor

• Lighting

  Low energy lighting in 20% of fixed outlets

  Poor

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

   Increase loft insulation to 270 mm

   Typical cost £100–£350 · saves about £55 a year

   Rating after53E
2. 2

   Add additional 80 mm jacket to hot water cylinder

   Typical cost £15–£30 · saves about £20 a year

   Rating after55D
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £20 · saves about £13 a year

   Rating after55D
4. 4

   Heat recovery system for mixer showers

   Typical cost £585–£725 · saves about £22 a year

   Rating after57D
5. 5

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £76 a year

   Rating after63D

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