31 Farmway

What the assessor found

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

• Walls

  Cavity wall, as built, no insulation (assumed)

  Poor

• Roof

  Pitched, no insulation (assumed)

  Very poor

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Windows

  Partial double glazing

  Poor

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, TRVs and bypass

  Average

• Hot water

  From main system

  Good

• Lighting

  Low energy lighting in 50% of fixed outlets

  Good

The assessor's estimates at the energy prices in use when the certificate was made (2015), 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

   Cavity wall insulation

   Typical cost £500–£1,500 · saves about £109 a year

   Rating after59D
2. 2

   Floor insulation (suspended floor)

   Typical cost £800–£1,200 · saves about £32 a year

   Rating after61D
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £20 · saves about £19 a year

   Rating after62D
4. 4

   Upgrade heating controls

   Typical cost £350–£450 · saves about £35 a year

   Rating after63D
5. 5

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £58 a year

   Rating after66D
6. 6

   Flue gas heat recovery in conjunction with boiler

   Typical cost £400–£900 · saves about £24 a year

   Rating after67D
7. 7

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £25 a year

   Rating after68D
8. 8

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £21 a year

   Rating after69C
9. 9

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £5,000–£8,000 · saves about £275 a year

   Rating after81B

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