105 Plumtree Close

What the assessor found

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

• Walls

  Cavity wall, as built, insulated (assumed)

  Good

• Roof

  Pitched, 150 mm loft insulation

  Good

• Floor

  (another dwelling below)

  Not rated on the certificate

• Windows

  Single glazed

  Very poor

• Heating

  Room heaters, electric

  Very poor

• Heating controls

  Programmer and appliance thermostats

  Good

• Hot water

  Electric immersion, off-peak

  Poor

• Lighting

  Low energy lighting in all fixed outlets

  Very good

The assessor's estimates at the energy prices in use when the certificate was made (2019), 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 £37 a year

   Rating after60D
2. 2

   Party wall insulation

   Typical cost £300–£600 · saves about £44 a year

   Rating after62D
3. 3

   Add additional 80 mm jacket to hot water cylinder

   Typical cost £15–£30 · saves about £16 a year

   Rating after63D
4. 4

   Draught proof single-glazed windows

   Typical cost £80–£120 · saves about £12 a year

   Rating after64D
5. 5

   High heat retention storage heaters and dual immersion cylinder

   Typical cost £800–£1,200 · saves about £179 a year

   Rating after76C
6. 6

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £68 a year

   Rating after79C

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