Hot&Cold.energy

We found your home

FLAT OVER, 115 HIGHER BRIDGE STREET

Maisonette132 m²EPC E52Mains gas1950s

Estimated boiler replacement

£1,900–£3,200

For a maisonette like yours · estimated installed cost

FreeNo obligationLocal installers

Your options for this home

Boiler replacement

£1,900–£3,200

Estimated installed cost · 10–13 kW

  • Existing mains gas
  • Suitable for your home size
  • Combi or system options
See details
  • Preliminary heat requirement 10.0–13.0 kW from 132.0 m² and construction era 1950s.
  • Existing wet central heating assumed where mains gas is present.

New central heating

£4,660–£7,640

Complete system estimate · 9–12 kW

  • Boiler / heat source
  • Radiators (~12)
  • Pipework & controls
See details
  • A complete new system priced on ~12 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

HotAndCold's model combines the recorded floor area, property type and EPC data, so this 132m² 1950s home has a current EPC rating of E52 and mains-gas heating. HotAndCold estimates a space-heating requirement of approximately 10.0–13.0kW. The recorded EPC score sits towards the lower end of the efficiency range. The estimated heat demand per square metre is around typical levels.

Estimated space-heating intensity
7698 W/m²
moderateProperty data confidence: Good

Hot&Cold snapshot

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

What stands out about this home

Possible wall-insulation opportunity
Roof insulation may influence heating demand
Modern heating controls recorded

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

132 m²
Floor area
+
maisonette
Property type
+
EPC E52
Energy rating
+
Mains gas
Current fuel
Hot&Cold property model
10–13 kW
Estimated heating requirement for this property

What we found about your home

Property type
Maisonette
Floor area
132 m²
Energy rating
EPC E52
Main heating fuel
Mains gas
Approx. age
1950s
Location
BOLTON, Bolton

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 81321 EPC-recorded properties nearby.

Floor area
+74%
74% larger than the local median

Building

Built form
Maisonette
Internal area (EPC)
132 m²
Building footprint
~103 m²
Approx. dimensions
~11.5 × 9.2 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
Cavity wall, as built, no insulation (assumed)
Roof
Pitched, no insulation (assumed)
Windows
Fully double glazed
Main heating
Boiler and radiators, mains gas
Heating controls
Programmer, room thermostat and TRVs
Hot water
From main system
Floor
(other premises below)

Energy improvement potential

Current
E52
Potential
D63
+11
Moderate 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 OVER, 115 HIGHER BRIDGE STREET, BOLTON, BL1 2HJ.

  1. 1
    Low energy lighting for all fixed outletsIndicative cost: £40

    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.

  2. 2
    Replace boiler with new condensing boilerIndicative cost: £2,200 - £3,000

    A condensing boiler is capable of much higher efficiencies than other types of boiler, meaning it will burn less fuel to heat this property. This improvement is most appropriate when the existing central heating boiler needs repair or replacement, 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). It is best to obtain advice from a qualified heating engineer. Ask the engineer to explain the options.

  3. 3
    Cavity wall insulationIndicative cost: £500 - £1,500

    Cavity wall insulation, to fill the gap between the inner and outer layers of external walls with an insulating material, reduces heat loss; this will improve levels of comfort, reduce energy use and lower fuel bills. The insulation material is pumped into the gap through small holes that are drilled into the outer walls, and the holes are made good afterwards. As specialist machinery is used to fill the cavity, a professional installation company should carry out this work, and they should carry out a thorough survey before commencing work to ensure that this type of insulation is suitable for this home. They should also provide a guarantee for the work and handle any building control issues. Further information about cavity wall insulation and details of local installers 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.

A
B
C
D
E
F
G
Current: E52Potential: D63

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 10–13 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.

Ready to get exact prices?

Compare no-obligation quotes from vetted local installers for your property.