20 Gloucester Road

What the assessor found

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

• Walls

  Solid brick, as built, no insulation (assumed)

  Poor

• Roof

  Pitched, 100 mm loft insulation

  Average

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Windows

  Some double glazing

  Poor

• 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 77% of 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

   Room-in-roof insulation

   Typical cost £1,500–£2,700 · saves about £377 a year

   Rating after67D
2. 2

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £259 a year

   Rating after72C
3. 3

   Floor insulation (suspended floor)

   Typical cost £800–£1,200 · saves about £81 a year

   Rating after74C
4. 4

   Draught proof single-glazed windows

   Typical cost £80–£120 · saves about £26 a year

   Rating after75C
5. 5

   Replace single glazed windows with low-E double glazed windows

   Typical cost £3,300–£6,500 · saves about £131 a year

   Rating after77C
6. 6

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £5,000–£8,000 · saves about £308 a year

   Rating after82B

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