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A heat pump is a heating system that extracts heat from the outside air, concentrates it, and uses it to warm your home and hot water. It replaces your gas boiler with a system that runs on electricity, but delivers 3 to 4 units of heat for every unit of electricity it consumes.
Most UK installations are air source heat pumps. They sit outside the property, draw heat from the ambient air (even in sub-zero conditions), and distribute that heat through your existing radiators or underfloor heating.
The technology is proven. Millions of heat pumps operate reliably across Europe in climates far colder than the UK. They work efficiently at temperatures well below freezing, and modern units are designed specifically for British weather conditions.
A heat pump is not a short-term fix. It is a long-term heating system, engineered to operate for 20 years or more with minimal maintenance, replacing a gas boiler with a future-proof alternative.
Heat pumps are not just for full system upgrades. If your boiler is nearing replacement, or you’re exploring lower-cost ways to reduce heating bills, there are entry points that don’t require a full home overhaul. We design systems around your property and your budget, not a fixed package.
How It Works
The outdoor unit draws latent heat from ambient air, even when outside temperatures drop well below freezing.
The heat pump compresses and amplifies that heat, delivering 3 to 4 units of usable heat for every unit of electricity consumed.
Warm water circulates through your radiators or underfloor heating, and a dedicated cylinder supplies hot water for baths and showers.
The UK heating market is changing fast. Heat pumps are no longer an alternative technology. They are becoming the default choice for households planning beyond the next few years.
UK gas prices remain volatile and significantly above pre-2021 levels. Every year you continue heating with gas, you are exposed to a market trending in the wrong direction.
New gas boiler installations face increasing restrictions, and the Boiler Upgrade Scheme currently offers £7,500 towards the cost of an air source heat pump. The direction of travel is not ambiguous.
A modern condensing gas boiler operates at around 90% efficiency. An air source heat pump delivers 300 to 400% effective efficiency, meaning 3 to 4 units of heat for every unit of electricity consumed.
As electricity grids decarbonise and heat pump technology improves, the operating cost gap between gas and heat pumps widens in favour of heat pumps.
A heat pump installation protects your home against gas phase-out timelines, rising gas costs, and the declining resale value of gas-heated properties.
The savings depend on three factors: your current heating costs, your insulation level, and the tariff you use to run the heat pump.
On a typical UK home currently heated by a gas boiler, expect the following:
| Heating System | Annual Running Cost (typical 3-bed home) |
|---|---|
| Old gas boiler (15+ years) | 0 to 0 |
| Modern condensing gas boiler | 0 to 0 |
| Air source heat pump (standard tariff) | 0 to 0 |
| Air source heat pump (heat pump tariff) | 0 to 0 |
Savings are most significant on homes with reasonable insulation and on properties running the heat pump on a dedicated heat pump tariff, which offers cheaper electricity during off-peak hours.
Insulation matters. A heat pump in a well-insulated home delivers maximum efficiency and maximum savings. In a poorly insulated property, the heat pump still works, but running costs will be higher. AORO assesses insulation and recommends upgrades where they genuinely improve long-term performance.
The financial case strengthens over time. As gas prices rise and electricity decarbonises, the annual saving from a heat pump continues to grow. You are essentially locking in tomorrow’s heating efficiency at today’s installation price.
Heat pumps are not just for premium installations or new-build homes. The UK heat pump market has matured. There are now systems engineered for small flats, mid-sized family homes, and large properties, with a wide range of price points to match.
Compact air source heat pumps suitable for smaller properties deliver reliable heating at the lower end of the price range, with the same efficiency fundamentals as larger systems.
Many AORO clients install a heat pump as the first step in a wider energy plan, adding solar, battery storage, or smart controls later as budget allows. The heat pump is the foundation. Everything else builds on it.
For larger homes, homes with high heat demand, or households planning a full energy transformation, a fully specified system with upgraded controls and heat distribution delivers maximum long-term performance.
The honest answer depends on your timeframe. A heat pump is not an instant cost-cutting measure. It is a long-term heating infrastructure decision.
A well-specified heat pump, run on the right tariff, typically costs less to run than a gas boiler today. That gap widens as gas prices rise and electricity costs fall relative to gas.
Factoring in the Boiler Upgrade Scheme grant, payback against a new gas boiler is typically 6 to 10 years. Against an old inefficient boiler, payback is faster.
A heat pump is permanent heating infrastructure designed for 20+ years of operation. It protects your home against rising gas prices, gas phase-out policy, and the declining resale value of gas-heated properties. A heat-pump-equipped home is measurably more attractive on the market than an identical gas-heated one.
For households planning to stay in their home for more than a few years, and for anyone with an aging gas boiler nearing replacement, a heat pump is already the smarter financial decision.
UK Pricing
Realistic UK price ranges for fully installed air source heat pump systems in 2025, before any Boiler Upgrade Scheme funding.
The Boiler Upgrade Scheme currently provides £7,500 towards the cost of a qualifying air source heat pump installation, bringing net costs significantly lower for most households.
At AORO, every quote is fixed and fully itemised. The number you see is the number you pay.
| System type | Approximate cost |
|---|---|
| SmallFlat or compact home | £0 to £0 |
| MediumTypical 3-bed home | £0 to £0 |
| Large4-bed or high heat demand | £0 to £0+ |
| ComplexCommercial | Priced on survey |
Fully installed ranges before BUS grant. Qualifying air source installs typically receive £7,500 towards capital cost.
The AORO Difference
Heat pumps are only as good as the engineering behind them. Most underperforming installations fail on sizing, radiator compatibility, or flow temperature design. Not on the hardware.
Every AORO heat pump system is specified by qualified engineers using detailed heat loss calculations, not rule-of-thumb sizing. The system is designed around your actual property.
Fixed, fully itemised quotes. No surprises, no added fees, no ambiguity. What we quote is what you pay.
We install leading manufacturer heat pumps selected for real-world UK performance, backed by strong warranties and proven reliability. Never the cheapest units. Never hardware chosen for margin.
Designed, installed, and supported by an in-house team. You speak directly with the engineers who designed your system, not an outsourced support line.
Required for Boiler Upgrade Scheme eligibility, warranty validity, and compliance with UK regulations. Complete documentation provided on handover.
Annual performance reviews, remote monitoring where applicable, and a team that stays with the system for its operational life.
On-site heat loss assessment covering insulation, window specification, radiator capacity, hot water demand, and electrical infrastructure. This is where the engineering starts.
Typically 1 to 2 hours on-siteDetailed heat pump sizing, radiator compatibility analysis, hot water cylinder specification, and a fully itemised fixed-price proposal. You know exactly what the system will deliver and what it will cost before committing.
Proposal within 5 working daysCarried out by our in-house team to MCS standards, with full electrical certification, plumbing compliance, and building regulations sign-off.
MCS certified in-houseSystem commissioning, controls set-up, and performance verification across real operating conditions to confirm efficiency from day one.
Live from commissioning dayAnnual performance reviews, warranty management, and long-term service support. We don't disappear after installation.
20+ year system lifetime support
FAQ
Straight answers on home heat pumps in the UK.
Yes. Modern air source heat pumps operate efficiently at temperatures well below freezing, down to minus 20°C in most cases. They work throughout UK winters, including during cold snaps. Efficiency does reduce at very low temperatures, which is why correct sizing at specification stage is critical.
Usually yes, especially when paired with a dedicated heat pump tariff. A well-specified system typically costs less to run than a modern gas boiler, and significantly less than an older one. The gap widens over time as gas prices rise and electricity grids decarbonise.
Not always. A heat pump will work in most UK homes as they are. However, better insulation means lower running costs and smaller, cheaper heat pump units. AORO assesses insulation during the survey and only recommends upgrades where they deliver genuine value.
In many cases, yes. A heat loss calculation at survey stage will identify whether any individual radiators need upgrading to deliver enough heat at lower flow temperatures. In most UK homes, only a small number of radiators (if any) require changes.
Modern air source heat pumps have an operational lifespan of 15 to 20 years, with some manufacturers quoting longer. Manufacturer warranties typically run 7 to 10 years. Annual servicing keeps the system operating at peak efficiency.
No. Modern units operate at around 40 to 45 decibels at 1 metre, which is quieter than a standard fridge. They are significantly quieter than older generations of heat pumps and comply with UK noise regulations for residential installations.
In most cases, no. Air source heat pumps fall under Permitted Development Rights in England, Scotland, and Wales, subject to placement rules, noise limits, and property type. AORO confirms planning status as part of the survey.
Most UK homeowners are. The scheme currently offers £7,500 towards the cost of a qualifying air source heat pump installation. Eligibility depends on property type, EPC rating, and installation criteria. AORO handles the application on your behalf.
In under 2 minutes, find out what a heat pump would cost and how much you could save.
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