Air Source Heat Pump Installation
Air Source Heat PumpInstallation For LiverpoolHomes & Properties
Move away from a gas boiler with an air source heat pump sized and installed correctly the first time, backed by a 12-month warranty from the shop.
Gas Safe and F-Gas registered, 4.8★ from 45 reviews, 12-month installation warranty.
16 yrs
engineer experience
4.8★
from 45 Google reviews
12-month
warranty on installations
Free
quotes on every install
Air Source Heat Pumps, Sized And Installed Properly
An air source heat pump extracts heat from the outside air, even in cold weather, and uses it to warm your home and hot water, running on electricity rather than gas. It's a genuinely different way of heating a property compared to a gas boiler, and getting the sizing, water regulations compliance and installation right matters far more than with a like-for-like boiler swap. BLU Plumbing installs air source heat pumps across Liverpool and Merseyside, backed by Water Regulations qualification and 16 years of heating experience.
This service suits homeowners moving away from oil or an ageing gas boiler, new-build properties designed around lower-temperature heating systems, and anyone wanting to reduce reliance on gas over the long term. It's also relevant for properties with good insulation and either radiators sized for lower flow temperatures or underfloor heating, since heat pumps work most efficiently in that kind of setup.
The right time to consider a heat pump is when an existing boiler is due for replacement, during a renovation where insulation and heating are being reviewed together, or when building a new property from scratch. Retrofitting one into a poorly insulated home with small radiators is possible but needs careful assessment first, which is exactly what a proper site survey is for.
Because a heat pump works differently to a boiler - lower flow temperatures, longer running periods, and often paired with underfloor heating - installation quality has a bigger impact on comfort and running costs than with traditional gas heating. An undersized unit or poorly matched radiators will leave a home feeling lukewarm rather than genuinely warm, which is where 16 years of heating system experience makes a real difference.
Full property assessment before any quote
Insulation, existing radiators or underfloor heating and hot water demand are all assessed so the heat pump is sized to the property, not just to a rule of thumb.
Water Regulations qualified installation
Hot water and heating pipework is installed to Water Regulations standards, which matters for both performance and compliance.
Works alongside underfloor heating
Heat pumps and underfloor heating are a natural pairing, and we install both together where a property suits it.
New build and retrofit experience
Whether it's a new build designed around a heat pump from the outset or an existing property switching from gas, both are within scope.
Why A Badly Sized Heat Pump Disappoints Homeowners
The single biggest cause of dissatisfaction with heat pumps isn't the technology itself - it's poor sizing and installation. Because heat pumps run at lower flow temperatures than a gas boiler, an installer who doesn't properly assess radiator sizes, insulation levels and hot water demand can leave a home that never quite feels warm enough, even though the system is running constantly.
This is often made worse when a heat pump is simply swapped in for a gas boiler without reviewing anything else, on the assumption it'll behave the same way. It won't, and the result is higher electricity bills for less comfort - the opposite of what the customer was hoping for when they made the switch.
Undersized units that can't heat the property
A heat pump sized without a proper heat loss assessment will struggle on the coldest days, leaving rooms noticeably cooler than expected.
Radiators unsuited to lower flow temperatures
Existing radiators sized for a gas boiler are often too small to heat a room properly at the lower temperatures a heat pump runs at, unless they're upgraded or paired with underfloor heating.
Higher bills from poor installation
A badly installed system runs longer and harder to compensate for design shortfalls, pushing electricity costs up rather than down.
Skipping the insulation conversation
Installing a heat pump into a poorly insulated property without addressing heat loss first sets the system up to underperform from day one.
Our Process
The same sequence on every job, so you know exactly what happens and when.
Step 1
Site survey and heat loss assessment
We assess insulation, existing heating, hot water demand and available outdoor space to determine whether a heat pump suits the property and what size is needed.
Step 2
Fixed-price quote
Once the survey is complete, you get a fixed price for the unit, any radiator or underfloor heating changes needed, and the full installation.
Step 3
Deposit and scheduling
A 20% deposit secures the installation date on larger jobs, with the balance due once the work is finished and tested.
Step 4
Installation to Water Regulations standard
The heat pump, pipework and any radiator or underfloor heating changes are installed to Water Regulations compliance throughout.
Step 5
Commissioning, handover and warranty
The system is commissioned and balanced, controls are explained clearly, and the completed installation carries a 12-month warranty from the shop.
What You Get
Efficient, steady heat
A properly sized heat pump delivers consistent warmth throughout the day rather than short bursts of intense heat and cooling.
Compliant, safe installation
Water Regulations qualified installation means pipework and hot water systems meet the legal standard required.
Built for the long term
Correct sizing and installation reduce strain on the unit, supporting a longer working life than a system pushed beyond its capacity.
Lower running costs over time
Right-sized heat pumps paired with suitable radiators or underfloor heating run efficiently rather than working overtime to compensate for poor design.
Dependable comfort year-round
A well-matched system keeps the property at a steady temperature through winter, without the cold spots that come from an undersized unit.
12-month warranty for peace of mind
Every installation is backed by a 12-month warranty direct from the shop, covering the unit and the installation work.
Air Source Heat Pumps In Detail
How air source heat pumps work
An outdoor unit extracts heat from ambient air, even in cold conditions, and a refrigerant cycle raises that heat to a usable temperature before transferring it into the home's heating and hot water system. Unlike a gas boiler, which produces heat quickly at high temperature, a heat pump works best running steadily at lower flow temperatures over longer periods.
Materials and equipment involved
Installation involves the outdoor unit, a hot water cylinder sized appropriately for the household, insulated pipework, and often larger radiators or underfloor heating to work efficiently at lower flow temperatures. Water Regulations qualification governs how the hot water and heating pipework is installed, particularly around backflow prevention and material standards.
Pairing with underfloor heating
Underfloor heating, whether wet or electric, is a natural match for a heat pump because it operates efficiently at the lower flow temperatures heat pumps produce most economically. Where a property already has or is having underfloor heating fitted, combining the two typically gives the most efficient and comfortable result.
Situations where a heat pump makes sense
New builds designed around lower-temperature heating are the most straightforward fit. Retrofits into existing properties work well where insulation is reasonable and radiators can be upgraded where needed; a proper survey identifies whether a property is ready or needs improvements first.
Residential versus larger property considerations
A single domestic installation is generally one outdoor unit serving one hot water cylinder and heating circuit. Larger properties or those with higher hot water demand may need a bigger unit or cylinder, which the site survey accounts for rather than assuming a standard domestic size will do.
Related services
Air Source Heat Pump Installation — Recent Work
Air Source Heat Pump Installation — Your Questions Answered
How much does an air source heat pump installation cost?
Cost depends on property size, existing heating and any radiator or underfloor heating changes needed, so we provide a free quote after assessing the property. A £75 diagnostic fee applies for fault-finding call-outs rather than new installation quotes.
How long does installation take?
A straightforward domestic installation is often completed within a few days, though properties needing radiator upgrades or underfloor heating alongside the heat pump will take longer.
Will my existing radiators work with a heat pump?
Sometimes, though many properties need larger radiators or underfloor heating to work efficiently at the lower flow temperatures a heat pump produces, which we assess during the survey.
Is there a warranty on heat pump installations?
Yes, every installation carries a 12-month warranty provided direct from the shop.
How long do air source heat pumps last?
With correct sizing and regular servicing, heat pumps commonly run for well over a decade, similar to or exceeding a typical gas boiler lifespan.
Can a heat pump be fitted into an older property?
Often yes, provided insulation and radiator sizing are addressed where needed. A site survey will confirm whether the property is ready or needs adjustments first.
Do you install heat pumps with underfloor heating?
Yes, we fit both wet and electric underfloor heating and regularly combine it with heat pump installations for better efficiency.
Which areas do you cover for heat pump installation?
We install air source heat pumps across Liverpool, Crosby, Anfield, Everton, Bootle, Wavertree, Woolton, West Derby and Garston.
Do you offer emergency support for heat pump faults?
Emergency response is primarily geared to domestic boiler breakdowns and gas leaks, but heat pump faults are assessed and prioritised as quickly as possible.
Can I get finance for a heat pump installation?
We don't offer finance or Klarna, but we do provide a fixed-price quote after assessment along with a 20% deposit option on larger jobs, with the balance due on completion.
Find Out If A Heat Pump Suits Your Home
Book a free site survey and we'll assess your property honestly, with a fixed-price quote and 12-month warranty on any installation that follows.
- Free quotes; £75 diagnostic if a fault needs tracing first.
- Fixed price confirmed once the job has been seen and assessed.
- Gas Safe registered, APHC member, 4.8★ from 45 Google reviews.