136 Andover Road

What the assessor found

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

• Walls

  System built, as built, no insulation (assumed)

  Very poor

• Roof

  Pitched, 75 mm loft insulation

  Average

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  No time or thermostatic control of room temperature

  Very poor

• Hot water

  From main system

  Good

• Lighting

  No low energy lighting

  Very poor

• Second heating

  Room heaters, mains gas

  Not rated on the certificate

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

   Increase loft insulation to 270 mm

   Typical cost £100–£350 · saves about £50 a year

   Rating after45E
2. 2

   Floor insulation

   Typical cost £800–£1,200 · saves about £72 a year

   Rating after49E
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £65 · saves about £31 a year

   Rating after51E
4. 4

   Upgrade heating controls

   Typical cost £350–£450 · saves about £112 a year

   Rating after56D
5. 5

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £49 a year

   Rating after59D
6. 6

   Flue gas heat recovery in conjunction with boiler

   Typical cost £900 · saves about £21 a year

   Rating after60D
7. 7

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £65 a year

   Rating after64D
8. 8

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £9,000–£14,000 · saves about £262 a year

   Rating after76C
9. 9

   Wind turbine

   Typical cost £1,500–£4,000 · saves about £20 a year

   Rating after77C

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