48 Blackdown Close

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

  Solid, no insulation (assumed)

  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 65% 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

   Room-in-roof insulation

   Typical cost £1,500–£2,700 · saves about £307 a year

   Rating after63D
2. 2

   Cavity wall insulation

   Typical cost £500–£1,500 · saves about £56 a year

   Rating after65D
3. 3

   Draught proof single-glazed windows

   Typical cost £80–£120 · saves about £29 a year

   Rating after66D
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £40 · saves about £18 a year

   Rating after67D
5. 5

   Upgrade heating controls

   Typical cost £350–£450 · saves about £123 a year

   Rating after71C
6. 6

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £51 a year

   Rating after72C
7. 7

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £90 a year

   Rating after75C
8. 8

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £5,000–£8,000 · saves about £290 a year

   Rating after85B

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