11 Bartlow Side

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, 75 mm loft insulation

  Average

• Floor

  (another dwelling below)

  Not rated on the certificate

• Windows

  Single glazed

  Very poor

• Heating

  Electric storage heaters

  Average

• Heating controls

  Manual charge control

  Poor

• Hot water

  Electric immersion, off-peak

  Poor

• Lighting

  Low energy lighting in 50% of fixed outlets

  Good

• Second heating

  Portable electric heaters (assumed)

  Not rated on the certificate

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 £108 a year

   Rating after66D
2. 2

   Add additional 80 mm jacket to hot water cylinder

   Typical cost £15–£30 · saves about £18 a year

   Rating after66D
3. 3

   Draught proof single-glazed windows

   Typical cost £80–£120 · saves about £15 a year

   Rating after67D
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £15 · saves about £18 a year

   Rating after68D
5. 5

   High heat retention storage heaters and dual immersion cylinder

   Typical cost £800–£1,200 · saves about £128 a year

   Rating after74C
6. 6

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £72 a year

   Rating after78C

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