Air Source Heat Pump Installation in Liverpool

Low-carbon heating advice and air source heat pump design for Liverpool homes — assessed property by property, from compact terraces and flats to semis in Childwall, Allerton and Woolton.

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An air source heat pump can be an excellent low-carbon replacement for an old heating system — but in Liverpool it is very much a property-by-property question. A heat pump needs an outdoor unit with space and airflow, and radiators or underfloor heating sized for lower flow temperatures, so the city’s high share of terraces (37.2%) and flats (25.8%) and its many rented, leasehold and conservation-area homes (Census 2021) all shape what is practical. Homes that don’t rely on mains gas — 9.8% of Liverpool homes used electric-only heating at Census 2021 — are often among the strongest candidates. An MCS registered installer’s survey is the way to know.

Last updated: July 2026
Reading time: 6 minutes
Reviewed by: Warmr Energy Team

Local knowledge. Low-carbon heating.

Air source heat pumps suit some Liverpool homes readily and others only with careful planning — a semi with a garden and space for an outdoor unit is a different proposition from a top-floor flat or a mid-terrace with a small yard. Good advice starts by looking honestly at your property: outdoor space, your existing radiators and insulation, and any permissions.

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Homes in Liverpool at a glance

507,915Population+9.1% since 2011
35 yrsMedian age
227,470Dwellings
37.2%Terraced homes
25.8%Flats & maisonettes
29.1%Semi-detached homes
7.9%Detached homes
47.4%Owner-occupied
26.4%Social rented
26.2%Private rented
77.8%Mains-gas heating
10,271 kWhMedian gas use
2,894 kWhMedian electricity use
6,990Solar installations (2024)up from 1,743 in 2014
33.7Solar densityinstalls per 1,000 homes
36Conservation areas

Population: ONS mid-2025 estimate (+9.1% since 2011). Housing mix, tenure and central-heating profile: Census 2021. Domestic gas and electricity use: DESNZ 2024 local-authority consumption. Solar sites: DESNZ 2014 & 2024 (a site count, not a percentage of homes). Council-listed conservation areas: 36 — check the property address and the latest council map before any address-specific claim.

Air source heat pump installation across Liverpool

An air source heat pump takes warmth from the outside air and uses it to heat your home and hot water, running on electricity rather than gas. It can be a strong low-carbon choice — but whether it suits your Liverpool home depends on the property. The city’s housing is dominated by terraces (37.2% of dwellings) and flats (25.8%), and 77.8% of homes used mains-gas-only heating at Census 2021, so for many households a heat pump is a genuine change in how the home is heated, not a straight boiler swap.

The homes that tend to suit a heat pump most readily are those with somewhere sensible to put an outdoor unit, radiators or underfloor heating that can run at lower temperatures, and reasonable insulation. Homes already off mains gas — the 9.8% on electric-only heating at Census 2021 — are often worth assessing first. An MCS registered installer will survey your property and tell you honestly what is involved.

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Why Liverpool homes need an honest assessment

Heat pumps reward careful, property-specific design, and Liverpool’s housing makes that especially true. A few local factors come up repeatedly:

Outdoor space for the unit. A heat pump needs an external unit with clear airflow. That is straightforward for a semi with a garden, harder for a mid-terrace with a small yard, and often impractical for an upper-floor flat without agreed space.
Radiators and flow temperature. Heat pumps work best at lower flow temperatures, so existing radiators may need checking and, in some homes, upgrading to keep rooms comfortable.
Insulation. The better a home holds heat, the better a heat pump performs — so insulation is part of the conversation, not an afterthought.
Permission and tenure. With owner occupation at 47.4% and the rest of occupied homes rented or leasehold (Census 2021), landlord, housing-provider or freeholder consent is often needed — particularly for flats and the outdoor unit.
Conservation areas. Liverpool has 36 council-listed conservation areas, so the position and visibility of an outdoor unit may need checking against the property address.

None of this rules a heat pump out — it is simply why an honest survey matters more here than a standard quote.

How it works

What to expect from a good heat pump installer in Liverpool

Knowing the hallmarks of a reputable heat pump installer helps you choose with confidence — here is what good looks like.

1
A thorough property survey
A reputable installer assesses your home in detail — heat loss, insulation, existing radiators, hot-water needs and where an outdoor unit can go with proper airflow — before recommending anything. A heat pump is not a like-for-like boiler swap, so be wary of a quote given without a full survey.
- Full heat-loss survey
- Not a phone quote
2
MCS registered installers
Air source heat pumps should be designed and installed by an MCS registered company — the standard that also underpins eligibility for government-backed heat pump grants where you qualify. A good installer will show their certification and explain the design for your home.
- MCS registered
- Grant-scheme standard
3
An honest, clear written quote
Expect a transparent written quote covering the heat pump, any radiator or cylinder changes and the electrical work — with a realistic explanation of how the system will perform in your home rather than an overstated promise.
- Fixed & transparent
- Realistic expectations
4
Proper commissioning, handover and aftercare
A good installation is commissioned and balanced so the system runs efficiently at the right flow temperature, then handed over properly — showing you the controls and setting you up for servicing and aftercare.
- Commissioned properly
- Aftercare set up

Liverpool heat pump questions, answered

Will an air source heat pump work in a Liverpool terrace or flat?

It can, but it needs assessing carefully. A heat pump requires somewhere outside with clear airflow for the unit, and radiators that can run at lower temperatures. That is often achievable for a terrace with a yard or garden, harder for a mid-terrace with little outdoor space, and dependent on agreed space and permission for a flat. A survey is the only way to know for your property.

Do I need to replace all my radiators?

Not always. Because heat pumps run at lower flow temperatures, some radiators may need to be larger to keep rooms comfortable — but many homes need only a few changes, and some none at all. A heat-loss survey identifies exactly what your home needs rather than assuming the worst or a like-for-like swap.

Is my home suitable if it's currently on gas?

Possibly — most Liverpool homes use mains gas (77.8% at Census 2021), and many can move to a heat pump with the right design and, sometimes, insulation or radiator upgrades. Homes already off gas, such as the 9.8% on electric-only heating, are often worth assessing first, but a survey is what confirms suitability either way.

Do I need permission to install a heat pump?

Sometimes. The outdoor unit’s position and visibility can matter, particularly in Liverpool’s 36 conservation areas, and if you rent or own a leasehold flat you will usually need the landlord, housing provider or freeholder to agree. Your installer can advise what applies to your address before anything is booked.

Are there grants for air source heat pumps?

There can be, but grant schemes and their eligibility change over time, so they should be checked at the point you enquire rather than assumed. Using an MCS registered installer is generally required to access government-backed heat pump grants where you qualify — another reason to choose an accredited company.

How do I find a reliable heat pump installer in Liverpool?

Look for an MCS registered company — the standard for air source heat pump installers and one that underpins grant eligibility. Ask to see their certification, insist on a full heat-loss survey rather than a phone quote, and get a written design that explains honestly how the system will perform in your home.