58 Markyate Road

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

  (another dwelling above)

  Not rated on the certificate

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Windows

  Fully double glazed

  Average

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, no room thermostat

  Very poor

• Hot water

  From main system, no cylinder thermostat

  Average

• Lighting

  No low energy lighting

  Very 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 (2020), 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

   Cavity wall insulation

   Typical cost £500–£1,500 · saves about £28 a year

   Rating after56D
2. 2

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £51 a year

   Rating after59D
3. 3

   Floor insulation (suspended floor)

   Typical cost £800–£1,200 · saves about £70 a year

   Rating after63D
4. 4

   Add additional 80 mm jacket to hot water cylinder

   Typical cost £15–£30 · saves about £13 a year

   Rating after64D
5. 5

   Low energy lighting for all fixed outlets

   Typical cost £35 · saves about £36 a year

   Rating after66D
6. 6

   Hot water cylinder thermostat

   Typical cost £200–£400 · saves about £20 a year

   Rating after67D
7. 7

   Upgrade heating controls

   Typical cost £350–£450 · saves about £53 a year

   Rating after70C
8. 8

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £44 a year

   Rating after72C

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