Hot&Cold.energy

We found your home

9 BALDWIN STREET, ST HELENS

Flat85 m²EPC G13Mains gas1900–1929

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 · 6.5–8.5 kW

  • Existing mains gas
  • Suitable for your home size
  • Combi or system options
See details
  • Preliminary heat requirement 6.5–8.5 kW from 85.0 m² and construction era 1900_1929.
  • Existing wet central heating assumed where mains gas is present.

New central heating

£3,940–£6,360

Complete system estimate · 6.5–8 kW

  • Boiler / heat source
  • Radiators (~8)
  • Pipework & controls
See details
  • A complete new system priced on ~8 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

Based on this property's recorded characteristics, this 85m² flat has a current EPC rating of G13 and mains-gas heating. HotAndCold estimates a space-heating requirement of approximately 6.5–8.5kW. This property's recorded energy efficiency is comparatively low. The estimated heat demand per square metre is around typical levels.

Estimated space-heating intensity
76100 W/m²
moderateProperty data confidence: Good

Hot&Cold snapshot

Property size
Smaller
Energy efficiency
Lower
Heating intensity
Moderate
Improvement potential
High
Main heating fuel
Mains gas
Cooling requirement
Medium

What stands out about this home

High recorded EPC improvement potential
Solid-wall construction
Possible wall-insulation opportunity
Roof insulation may influence heating demand

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

85 m²
Floor area
+
flat
Property type
+
EPC G13
Energy rating
+
Mains gas
Current fuel
Hot&Cold property model
6.5–8.5 kW
Estimated heating requirement for this property

What we found about your home

Property type
Flat
Floor area
85 m²
Energy rating
EPC G13
Main heating fuel
Mains gas
Approx. age
1900–1929
Location
ST HELENS, St. Helens

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 56294 EPC-recorded properties nearby.

Floor area
+10%
10% larger than the local median

Sale history

Recorded sales for 9 BALDWIN STREET from HM Land Registry Price Paid data.

  1. £195,000
    Sept 2021 · Other
  2. £76,000
    Mar 2020 · Other
  3. £84,000
    Mar 2019 · Other
  4. £60,000
    Jun 2002 · Terraced

Contains HM Land Registry data © Crown copyright and database right. Sale prices are historic and not a current valuation.

Building

Built form
Flat
Internal area (EPC)
85 m²
Building footprint
~69 m²
Approx. dimensions
~14.5 × 4.8 m
Main building axis
E–W
Nearest building
0.0 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, no insulation (assumed)
Windows
Fully double glazed
Main heating
No system present: electric heaters assumed
Heating controls
None
Hot water
No system present: electric immersion assumed
Floor
(other premises below)

Energy improvement potential

Current
G13
Potential
C69
+56
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 9 BALDWIN STREET, ST HELENS, ST. HELENS, WA10 2RS.

  1. 1
    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.

  2. 2
    Flue gas heat recovery in conjunction with boilerIndicative cost: £400 - £900

    A flue gas heat recovery system extracts heat from the boiler flue gases and transfers it to the incoming cold water so that the boiler needs to supply less heat. It is suitable for use only with a modern condensing gas boiler and should be fitted when a replacement boiler is installed.

  3. 3
    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).

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: G13Potential: C69

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 6.5–8.5 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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