We found your home
CAREFREE, KNOWSLEY GRANGE
Estimated boiler replacement
£1,900–£3,200
For a detached like yours · estimated installed cost
Your options for this home
Boiler replacement
Estimated installed cost · 55–74 kW
- Fuel confirmed on survey
- Suitable for your home size
- Combi or system options
See details →
- • Preliminary heat requirement 55.0–74.0 kW from 888.0 m² and construction era 1970s.
- • Heating system type to be confirmed on survey.
New central heating
Complete system estimate · 59–79.5 kW
- Boiler / heat source
- Radiators (~81)
- Pipework & controls
See details →
- • A complete new system priced on ~81 radiators, pipework and a boiler.
- • Radiator count is indicative from floor area and confirmed on survey.
Home air conditioning
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
From the available property and energy data, this 888m² 1970s detached home has a current EPC rating of B84 and its recorded heating. HotAndCold estimates a space-heating requirement of approximately 55.0–74.0kW. The recorded EPC score is comparatively high for existing housing stock. The estimated heat demand per square metre is towards the lower end.
Hot&Cold snapshot
What stands out about this home
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
What we found about your home
- Property type
- Detached
- Floor area
- 888 m²
- Energy rating
- EPC B84
- Main heating fuel
- Electric
- Approx. age
- 1970s
- 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 7 EPC-recorded properties nearby.
Building
- Built form
- Detached
- Internal area (EPC)
- 888 m²
- Building footprint
- ~356 m²
- Approx. dimensions
- ~27.9 × 23.8 m
- Main building axis
- N–S
- Estimated floors
- 2
- Nearest building
- 10.0 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, with internal insulation
- Roof
- Pitched, 200 mm loft insulation
- Windows
- Fully double glazed
- Main heating
- Ground source heat pump, underfloor, electric
- Heating controls
- Programmer and room thermostat
- Hot water
- Electric immersion, off-peak
- Floor
- Solid, insulated
Energy 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 CAREFREE, KNOWSLEY GRANGE, BOLTON, BL1 5DQ.
- 1Time and temperature zone controlIndicative cost: £350 - £450
The heating system controls should be improved so that both the temperature and time of heating can be set differently in separate areas of your house; this will reduce the amount of energy used and lower fuel bills. For example, it is possible to have cooler temperatures in the bedrooms than in the living room provided internal doors are kept closed, and to have a longer heating period for the living room. It is best to obtain advice from a qualified heating engineer.
Source: the property’s domestic EPC recommendations (open data). Indicative only, get a professional survey before committing to any measure.
Energy rating history
Recorded change: +31 EPC points across 2 certificates.
- 2016E53
- 2022B84
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 55–74 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.
Other homes nearby
Ready to get exact prices?
Compare no-obligation quotes from vetted local installers for your property.