Hot&Cold.energy

We found your home

FLAT 2, 15 KING STREET

Flat68 m²EPC F31ElectricPre-1900

Estimated boiler replacement

£1,900–£3,200

For a flat like yours · estimated installed cost

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Your options for this home

Boiler replacement

£1,900–£3,200

Estimated installed cost · 7–9 kW

  • Fuel confirmed on survey
  • Suitable for your home size
  • Combi or system options
See details
  • Preliminary heat requirement 7.0–9.0 kW from 68.0 m² and construction era pre_1900.
  • Heating system type to be confirmed on survey.

New central heating

£3,580–£5,720

Complete system estimate · 6–8 kW

  • Boiler / heat source
  • Radiators (~6)
  • Pipework & controls
See details
  • A complete new system priced on ~6 radiators, pipework and a boiler.
  • Radiator count is indicative from floor area and confirmed on survey.

Home air conditioning

£3,800–£5,700

Multi-split system estimate · 4–6 kW · ~3 units

  • Approx. 3 indoor units
  • Heating & cooling
  • Professional installation
See details
  • Total floor area is not the same as conditioned area; this reflects the selected room scenario.

Heating & cooling profile

Using the recorded floor area and EPC characteristics, this 68m² pre-1900 flat has a current EPC rating of F31 and its recorded heating. HotAndCold estimates a space-heating requirement of approximately 7.0–9.0kW. The recorded EPC score sits towards the lower end of the efficiency range. The estimated heat demand per square metre is towards the higher end.

Estimated space-heating intensity
103132 W/m²
relatively highProperty data confidence: Good

Hot&Cold snapshot

Property size
Compact
Energy efficiency
Lower
Heating intensity
Relatively high
Improvement potential
High
Main heating fuel
Non-gas
Cooling requirement
Medium

What stands out about this home

High recorded EPC improvement potential
Relatively high modelled heating demand per m²
Solid-wall construction
Possible wall-insulation opportunity

Why this estimate?

We calculate estimates using your property's size, type, age, heating fuel and EPC rating, along with typical installation costs, not a professional heat-loss survey.

How we calculated this

68 m²
Floor area
+
flat
Property type
+
EPC F31
Energy rating
Hot&Cold property model
7–9 kW
Estimated heating requirement for this property

What we found about your home

Property type
Flat
Floor area
68 m²
Energy rating
EPC F31
Main heating fuel
Electric
Approx. age
Pre-1900
Location
WIGAN, Wigan

We use publicly available data and industry models to generate this estimate. A final survey by an installer may vary.

How this home compares locally

Based on 94040 EPC-recorded properties nearby.

Floor area
-13%
13% smaller than the local median

Building

Built form
Flat
Internal area (EPC)
68 m²
Building footprint
~308 m²
Approx. dimensions
~20.7 × 20.0 m
Main building axis
NW–SE
Nearest building
3.5 m

Footprint & dimensions derived from Overture Maps building data (ODbL). Approximate, not survey-grade.

How this home is constructed & heated

Recorded on its Energy Performance Certificate.

Walls
Solid brick, as built, no insulation (assumed)
Roof
Pitched, 100 mm loft insulation
Windows
Single glazed
Main heating
Electric storage heaters
Heating controls
Manual charge control
Hot water
Electric immersion, off-peak
Floor
(other premises below)

Energy improvement potential

Current
F31
Potential
C71
+40
High improvement potential

Recommended improvements for this property

Measures from this home’s official Energy Performance Certificate assessment that could raise its rating and cut running costs, specific to FLAT 2, 15 KING STREET, WIGAN, WN1 1DY.

  1. 1
    Draught proof single-glazed windowsIndicative cost: £80 - £120

    Fitting draught proofing, strips of insulation around windows and doors, will improve the comfort in the home. A contractor can be employed but draught proofing can be installed by a competent DIY enthusiast.

  2. 2
    Add additional 80 mm jacket to hot water cylinderIndicative cost: £15 - £30

    Increasing the thickness of existing insulation by adding an 80 mm cylinder jacket around the hot water cylinder will help maintain the water at the required temperature; this will reduce the amount of energy used and lower fuel bills. The jacket should be fitted over the top of the existing foam insulation and over any thermostat clamped to the cylinder. Hot water pipes from the hot water cylinder should also be insulated, using pre-formed pipe insulation of up to 50 mm thickness (or to suit the space available) for as far as they can be accessed to reduce losses in summer. All these materials can be purchased from DIY stores and installed by a competent DIY enthusiast.

  3. 3
    Low energy lighting for all fixed outletsIndicative cost: £30

    Replacement of traditional light bulbs with energy saving recommended ones will reduce lighting costs over the lifetime of the bulb, and they last up to 12 times longer than ordinary light bulbs. Also consider selecting low energy light fittings when redecorating; contact the Lighting Association for your nearest stockist of Domestic Energy Efficient Lighting Scheme fittings.

  4. 4
    Change heating to gas condensing boilerIndicative cost: £3,000 - £7,000

    Changing the heating to use a mains gas boiler that provides both space and water heating will save money, as mains gas is currently cheaper than the fuel being used at present. A condensing boiler is capable of much higher efficiencies than other types of boiler, meaning it will burn less fuel to heat the property, but there may be exceptional circumstances making this impractical. Condensing boilers need a drain for the condensate which limits their location; remember this when considering remodelling the room containing the existing boiler even if the latter is to be retained for the time being (for example a kitchen makeover). This improvement is most appropriate when the existing heating system needs repair or replacement. It is best to obtain advice from a qualified heating engineer. Ask the engineer to explain the options. It is also recommended to change the electricity tariff to standard tariff when off-peak is no longer used.

  5. 5
    Increase loft insulation to 270 mmIndicative cost: £100 - £350

    Loft insulation laid in the loft space or between roof rafters to a depth of at least 270 mm will significantly reduce heat loss through the roof; this will improve levels of comfort, reduce energy use and lower fuel bills. Insulation should not be placed below any cold water storage tank; any such tank should also be insulated on its sides and top, and there should be boarding on battens over the insulation to provide safe access between the loft hatch and the cold water tank. The insulation can be installed by professional contractors but also by a capable DIY enthusiast. Loose granules may be used instead of insulation quilt; this form of loft insulation can be blown into place and can be useful where access is difficult. The loft space must have adequate ventilation to prevent dampness; seek advice about this if unsure (particularly if installing insulation between rafters because a vapour control layer and ventilation above the insulation are required). Further information about loft insulation and details of local contractors can be obtained from the National Insulation Association (www.nationalinsulationassociation.org.uk).

  6. 6
    50 mm internal or external wall insulationIndicative cost: £4,000 - £14,000

    Solid wall insulation involves adding a layer of insulation to either the inside or the outside surface of the external walls, which reduces heat loss and lowers fuel bills. As it is more expensive than cavity wall insulation it is only recommended for walls without a cavity, or where for technical reasons a cavity cannot be filled. Internal insulation, known as dry-lining, is where a layer of insulation is fixed to the inside surface of external walls; this type of insulation is best applied when rooms require redecorating and can be installed by a competent DIY enthusiast. External solid wall insulation is the application of an insulant and a weather-protective finish to the outside of the wall. This may improve the look of the home, particularly where existing brickwork or rendering is poor, and will provide long-lasting weather protection. Further information can be obtained from the National Insulation Association (www.nationalinsulationassociation.org.uk).

  7. 7
    Replace single glazed windows with low-E double glazingIndicative cost: £3,300 - £6,500

    Double glazing is the term given to a system where two panes of glass are made up into a sealed unit. Replacing existing single-glazed windows with double glazing will improve comfort in the home by reducing draughts and cold spots near windows. Double-glazed windows may also reduce noise, improve security and combat problems with condensation.

Source: the property’s domestic EPC recommendations (open data). Indicative only, get a professional survey before committing to any measure.

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Current: F31Potential: C71

Common questions

How much does a replacement boiler cost for a property like this?+

For this property we estimate an installed cost of £1,900–£3,200. This is indicative and based on the property's size, type and energy characteristics, your final price depends on equipment choice and an installer survey.

What size boiler might this property need?+

Our preliminary model estimates a heat requirement of around 7–9 kW. An installer confirms exact sizing on a heat-loss assessment.

How much would air conditioning cost here?+

A multi-split installation is estimated at £3,800–£5,700, depending on how many rooms you want to cool (around 3 indoor units in a typical layout).

Are these guaranteed prices?+

No, they are indicative estimates to help you understand likely costs before speaking to an installer. Your final price depends on equipment choice, installation complexity and a survey.

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