1 Romilly Crescent

What the assessor found

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

• Walls

  Sandstone, as built, no insulation (assumed)

  Very poor

• Roof

  Pitched, 250 mm loft insulation

  Good

• Floor

  Solid, 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

  Average

• Lighting

  Low energy lighting in 40% of fixed outlets

  Average

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 £354 a year

   Rating after68D
2. 2

   Floor insulation

   Typical cost £800–£1,200 · saves about £81 a year

   Rating after71C
3. 3

   Draught proof single-glazed windows

   Typical cost £80–£120 · saves about £43 a year

   Rating after72C
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £45 · saves about £36 a year

   Rating after73C
5. 5

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £177 a year

   Rating after79C

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