Flat 1 Lingfield Crescent

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

  Flat, no insulation (assumed)

  Very poor

• Floor

  (other premises below)

  Not rated on the certificate

• Windows

  Single glazed

  Very poor

• 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 60% of fixed outlets

  Good

The assessor's estimates at the energy prices in use when the certificate was made (2016), 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

   Flat roof insulation

   Typical cost £850–£1,500 · saves about £236 a year

   Rating after53E
2. 2

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £446 a year

   Rating after68D
3. 3

   Draught proof single-glazed windows

   Typical cost £80–£120 · saves about £15 a year

   Rating after69C
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £20 · saves about £23 a year

   Rating after70C
5. 5

   Upgrade heating controls

   Typical cost £350–£450 · saves about £102 a year

   Rating after73C
6. 6

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £54 a year

   Rating after75C
7. 7

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £61 a year

   Rating after77C

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