34 Willow 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, 150 mm loft insulation

  Good

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Windows

  Fully double glazed

  Poor

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, room thermostat and TRVs

  Good

• Hot water

  From main system

  Good

• Lighting

  Below average lighting efficiency

  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 (2025), 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 £900–£1,200 · saves about £40 a year

   Rating after55D
2. 2

   Cavity wall insulation

   Typical cost £900–£1,500 · saves about £275 a year

   Rating after62D
3. 3

   Floor insulation (solid floor)

   Typical cost £5,000–£10,000 · saves about £147 a year

   Rating after66D
4. 4

   Low energy lighting for all fixed outlets

   Typical cost £150–£175 · saves about £36 a year

   Rating after66D
5. 5

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £8,000–£10,000 · saves about £225 a year

   Rating after71C

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