27 Quantock Close

What the assessor found

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

• Walls

  Cavity wall, with external insulation

  Good

• Roof

  Pitched, no insulation

  Very poor

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, room thermostat and TRVs

  Good

• Hot water

  From main system

  Good

• 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 (2013), 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 £267 a year

   Rating after69C
2. 2

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £37 a year

   Rating after71C
3. 3

   Floor insulation

   Typical cost £800–£1,200 · saves about £66 a year

   Rating after74C
4. 4

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £36 a year

   Rating after75C
5. 5

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £9,000–£14,000 · saves about £257 a year

   Rating after85B

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